www.yageo.com Current Sensing Chip Resistors About Yageo Founded in 1977, the Yageo Corporation has become a world-class provider of passive component services with capabilities on a global scale, including production and sales facilities in Asia, Europe and the Americas. Yageo currently ranks as the world No.1 in chip-resistors, No. 3 in MLCCs and No. 4 in ferrite products, with a strong global presence: 21 sales offices in 15 countries, 9 production sites, 8 JIT logistic hubs, and 2 R&D centers worldwide. Ferroxcube and Vitrohm, who produce ferrites and leaded resistors, are also a part of the Yageo group. We support our customers with extensive literature including datasheets, brochures and application notes, which are also available electronically on our website at: www.yageo.com Table of Contents Introduction..............................................................3 Current-Sensing Circuit Applications..........4 Market Applications..............................................6 Product Portfolio....................................................7 Product Selection Tables................................. 10 2 Introduction Low Resistance, High Power for Current Sensing Applications Current Sensing Chip Resistors Current measurement is very important in power and instrumentation systems for circuit control, protection, monitoring, and performance enhancement. Engineers in power supply and battery circuit designs need to consider a give-and-take strategy between low resistance values to minimize power losses and sufficient voltage supplies to avoid noises generated from the environments or particularly in switch mode power supplies. Yageo’s current-sensing chip resistors are also fully compatible with today’s high volume pick-and-place assembly systems. As such, they offer attractive, cost-effective solutions to designers of low voltage power supplies and battery management systems. Featuring a comprehensive resistance range of 0.5 milli-ohms to 1 ohm (low-ohmic), and available from 0.05 to 5 watts, they are not only applicable to battery packs, power supplies and converters, but also suitable for use in diverse power control circuits of tablets, notebook computers and hard disks. Introduction Yageo now offers three types of surface-mount (SMT) current-sensing chip resistors based on thick film, metal foil, and metal plate technologies, with scalable product portfolios to meet the various demands of customers and their applications. Main Features of Yageo’s Current-Sensing Chip Resistors • • • • Low resistance value from 1mΩ to 20 mΩ for minimizing power losses. High power-rating from 0.05 to 5 watts. Tight tolerance within 2% to exhibit actual current via voltage reading. Low TCR to avoid measurement distortions. TCR ranges from 50 to 100ppm/ºC for metal and 100 to 1500ppm/ºC for thick film current sensors. • Scalable off-the-shelf products in standard case sizes. • Compatibility with surface-mount assembly process. • RoHS/REACH-compliant & Halogen-free. The low temperature coefficient of resistance (TCR) of Yageo's current-sensing chip resistors minimizes the resistance change caused by self-heating and high temperature environments. Thermal electromotive force (EMF) is also an important consideration. Thermal EMF is an important parameter of the metal foil series of battery management circuits, and of current-sensor resistors. Thermal electromotive force (EMF) of an Mn-Cu alloy is especially optimal with low EMF below µ0.03 uV/oC. 3 Current-Sensing Circuit Applications Low-Ohmic Resistors in Power-Sensing Current-sensor resistors are used in power sensing applications such as sensing output current in power supplies and automotive engine management systems. As shown in Figure 1, a typical function for a current-sensor chip resistor is as a currentsensor (Rsense). This generates the sensing voltage (Vs) for a feedback control network through which an output current (Io) passes. The sensing voltage triggers MOSFET switches, switching them ON and OFF to regulate the duty factor of the current passing through a choke (L). The sensing voltage (Vs) is given by the simple relation: Figure 1 Current sensor chip resistor in current sensing application Vs = Io x Rsense This sensing voltage is generally set at around 100 mV both to save power and maintain satisfactory noise immunity. To sense a 5 A average output current, Rsense must be 100 mV/5 A = 20 mΩ. The power dissipation will then be: P = Io2Rsense = 5 A x 5 A x 20 mΩ = 0.5 W A current-sensor chip resistor with a power rating 1.0 W would then be recommended for this application to provide an adequate safety margin. Over-Current Detection As a means to detect the current passing through the transistor (see Figure 2), a resistor in series is added between an emitter and a ground. This resistor shouldn't emit smoke or catch fire even when the switching transistor, subjected to a larger current, breaks down. In addition, reduced parasitic inductance is required, particularly for high frequency switching control. Recommended resistors with low resistance are metal-plate types, like the PE-series. DC/DC converter Figure 3 on the right shows the current-detecting circuit of a DC/DC converter. The voltage across the currentdetecting resistor is fed back to control the output power. The resistance should be low to reduce power dissipation, and the resistor should withstand a repeated rush current. Furthermore, the self-inductance should be low for highfrequency applications. Recommended types are PE-series chip resistors. As for high frequency DC/DC converters, metal-plate chip resistor, PE-series are the best fit. 4 Figure 2 Over-current protection circuit Figure 3 DC/DC converter circuit Tight Tolerance in Sensing Resistance 2 Current Sensing Chip Resistors The magnitude of the output ripple depends on the inductance of the choke - the higher the inductance, the lower the ripple. A high inductance choke, however, reduces the ability of the circuit to respond to high frequency transients. Such a choke will also be physically large, limiting the possibilities for miniaturization so essential to modern mobile equipment. 0.04 = 4 Figure 4 Relationship between average output current and Introduction A trade-off is therefore necessary between choke peak current with a ripple of 0.04 volume and output current ripple. Experience indicates that a ripple of 0.04 provides a good compromise in this area. With this ripple value, the peak output current (Ipeak) is 2% greater than the average current (Iavg): Ipeak = 1.02 x Iavg (Figure 4). The voltage generated across the sensing resistor is used in a feedback network to trigger the power-switching IC.To allow for variation in the characteristics of the power-switching IC, a safety margin for the sensing-voltage is necessary. A -2% margin on sensing-voltage is usually taken for general applications. As mentioned earlier, the relation between current sensor resistance, feedback sensing voltage and output current is given given by the formula: Rsense = Vs/Io. With an output ripple of of 0.04, a 4% (± 2%) deviation on output current and a safety margin on the sensing voltage of -2%, the allowable deviation on (Rsense) is: 0.98 x Vs 0.98 x 1o Vs 0.85 x 1o If Vs= 100 mV and Io= 5 A, the allowable current sensor sensing resistance must lie in the range 19.2mΩ to 20.4mΩ. Excellent Low TCR Values for Precision Applications The above discussion does not, of course, take into account the effects of the temperature coefficient of resistance (TCR) on current sensing applications. With a maximum deviation of 4% on output current and a safety margin of 2% on sensing voltage, the maximum allowable deviation on sensing resistance is 6%. The limit on TCR is then given by: T.C.R. So TCR 1.06 Rsense 0.06 Figure 3 plots the allowable T.C.R. values required to maintain tolerance on sensing resistance within the specified limit. TCR values of Yageo’s current-sensor chip resistors fall well within these allowed limits over the temperature range 25°C to 155°C. 5 Market Applications Yageo’s current sensor chip resistors are optimized for current sensing control. The current sensor current sensors, available from 0.05 to 5 watts, are applicable to battery pack, power supply and converter, and are suitable for use in diverse power control circuit of notebook computer or the hard disk of other compact portable devices that have current sensing and over current protection requirements. Featuring a comprehensive resistance range of 0.5 milliohms to 1 ohm and superior temperature coefficient (T.C.R.) performance is able to meet various customer demands and applications. Application Segment Consumer Automotive Industrial Telecom Medical Device & Computing Home Appliances v Air Conditioners v v Diagnostic Equipment Infotainment System v v v Smart Meters v Smartphones & Tablets v v Notebooks v v Wearable Devices v v Networking v v v Batteries Battery Chargers v v v v v Battery Life Indicators v v v v v Battery Packs v v v v v Motor Controls v v v Motor Drives v v v v v v v v Motors Power Supplies DC/DC Converters v Switch Mode Power Supplies v v v LED Drivers v v v v Ballasts v v v v LED Lighting Storage & Cloud Computing 6 Disk Drives (HDD &SSD) v Servers v Product Portfolio Thick Film Current-Sensing Chip Resistors (RL & PT Series) marking layer overcoat protective coat Based on thick film technology, these products exhibit far low parasitic inductance than wirewound and leaded counter parts. Yageo’s thick film RL/PT low-ohmic current sensing chip resistors is low cost, capable of providing low TCR down to ±75ppm/°C, resistance value down to 50mΩ with power up to 2 watts of power dissipation. resistive layer termination (Ni / matte tin) inner electrode ceramic substrate Cross section of RL / PT series Metal Foil Current-Sensing Chip Resistors (PE & PF Series) Metal Plate Current-Sensing Chip Resistors (PA & PR Series) A related simple construction without multiple cuts, metal plate current-sensing resistors provide low TCR down to ±25ppm/°C, high power rating up to 3W, high frequency performance and low resistance down to 0.5mΩ. marking layer protective coat end termination H inner electrode I2 protective coat ceramic substrate resistive layer (metal foil) Cross section of PE / PF series metal substrate H end termination I2 protective coat Cross section of PA / PR series marking layer protective coat Wide Terminal Current-Sensing Chip Resistors Using the wider side as connection in the mounting plate, wide terminal current-sensing chip resistors strengthen solder joints, holding reliably to achieve higher power rating needs. With an ideal structure to suppress heat generation, wide terminal type currentsensors save space, and reduce resistor numbers in high-density circuit board designs. Market Applications / Product Portfolio Metal foil current-sensing resistors made of Mn-Cu alloy are developed with substrates to provide a better thermal dissipation and with a wider resistance range up to 300mΩ. Metal foil PE series feature low EMF below conditions of temperature changes. µ0.03 uV/ºC is more likely to endure harsh conditions. In the metal foil type, TCR ranges from 50 to 100ppm/ºC, power rates up to 3W, and resistance value is available as low as 0.5mΩ. Current Sensing Chip Resistors inner electrode resistive layer inner electrode H termination (Ni/matte tin) I2 ceramic substrate Cross section of wide terminal series Four-Terminal, Current-Sensing Chip Resistors Design of accurate measurement circuitry, lower power consumption, higher accuracy, and smaller space requirements are important features for electronic control units. To minimize power losses, a large current across the (Rsense) resistor needs to be measured, and high-side, current-sense amplifier ICs have to monitor the current accurately. Four-terminal, current-sensing resistors separating current-carry from voltage-sensing terminals are able to improve voltage and current measurement accuracy from the ideal Kelvin configuration. They also improve interference and thermoelectric effects at higher applied power. 7 Dimensions Wide terminal I1 I1 I1 I1 H H W I2 I2 L Type I2 I2 W L unit: mm unit: mm Resistance range L W H I1 I2 50mΩ ≤ R < 1Ω RL0402 (1) 1.00 ±0.10 0.50 ±0.05 0.35 ±0.05 0.20 ±0.10 0.25 ±0.10 RL0603 (1) 1.60 ±0.10 0.80 ±0.10 0.45 ±0.10 0.25 ±0.15 0.25 ±0.15 RL0805 (1) 2.00 ±0.10 1.25 ±0.10 0.50 ±0.10 0.35 ±0.20 0.35 ±0.20 RL1206 (1) 3.10 ±0.10 1.60 ±0.10 0.55 ±0.10 0.45 ±0.20 0.45 ±0.20 3.10 ±0.10 2.60 ±0.15 0.55 ±0.10 0.50 ±0.20 0.50 ±0.20 RL1218 (1) 3.05 ±0.15 4.60 ±0.20 0.55 ±0.10 0.45 ±0.25 0.50 ±0.25 RL2010 (1) 5.00 ±0.10 2.50 ±0.15 0.55 ±0.10 0.60 ±0.20 0.50 ±0.20 RL2512 (1) 6.35 ±0.10 3.20 ±0.15 0.55 ±0.10 0.60 ±0.20 0.50 ±0.20 PT0402 (1) 1.00 ±0.10 0.50 ±0.05 0.35 ±0.05 0.20 ±0.10 0.25 ±0.10 PT0603 (1) 1.60 ±0.10 0.80 ±0.10 0.45 ±0.10 0.25 ±0.15 0.25 ±0.15 PT0805 (1) RL1210 (1) PT1206 (1) 10mΩ ≤ R < 1Ω 50mΩ ≤R < 1Ω 2.00 ±0.10 1.25 ±0.10 0.55 ±0.10 0.35 ±0.20 0.35 ±0.20 50mΩ ≤ R < 75mΩ & 91mΩ ≤ R < 1Ω 3.10 ±0.10 1.60 ±0.10 0.55 ±0.10 0.45 ±0.20 0.45 ±0.20 75mΩ ≤ R < 91mΩ 3.10±0.10 1.60±0.10 0.55±0.10 0.75±0.20 0.45±0.20 5.00 ±0.10 2.50 ±0.15 0.55 ±0.10 0.60 ±0.20 0.50 ±0.20 6.35 ±0.10 3.20 ±0.15 0.55 ±0.10 0.60 ±0.20 0.50 ±0.20 0.25 ± 0.10 PT2010 (1) PT2512 (1) PE0402 (2) 10mΩ ≤ R ≤ 50mΩ 1.00 ± 0.30 0.50 ± 0.20 0.45 ± 0.20 --- PE0603 (2) 5mΩ ≤ R < 100mΩ 1.60 ± 0.25 0.80 ± 0.25 0.60 ± 0.25 --- 100mΩ ≤ R < 1Ω 4mΩ PE0805 (2) PE1206 (2) 5mΩ 6mΩ 2.00 ± 0.25 1.25 ± 0.25 0.60 ± 0.25 --- PE2512 4mΩ 1.20 ± 0.25 5mΩ ≤ R ≤ 8mΩ 5mΩ ≤ R ≤ 9mΩ 10mΩ ≤ R < 100mΩ 9mΩ ≤ R < 99mΩ 100mΩ 3.20 ± 0.25 1.60 ± 0.25 0.60 ± 0.25 1.15 ± 0.25 0.58 ± 0.25 5.00 ± 0.25 2.50 ± 0.25 0.60 ± 0.25 --- 6.30 ± 0.25 3.10 ± 0.25 0.60 ± 0.25 --- 6.45 ± 0.25 3.25 ± 0.25 0.70 ± 0.25 --- Note: 1. Apply to ordering codes ending in “L” 2. Apply to ordering codes ending in “Z” Please contact sales offices, distributors and representatives in your region before ordering 8 0.55 ± 0.25 0.40 ± 0.25 6mΩ ≤ R ≤ 8mΩ (2) 0.63 ± 0.25 7mΩ ≤ R < 100mΩ 9mΩ ≤ R < 100mΩ PE2010 (2) 0.30 ± 0.25 0.70 ± 0.25 1.50 ± 0.25 0.60 ± 0.25 1.90 ± 0.25 0.95 ± 0.25 0.60 ± 0.25 Type Resistance range 5mΩ PE4527 (2) PR1206 6mΩ ≤ R < 910mΩ (2) 1mΩ ≤ R ≤ 4mΩ PR2010 (2) W H I1 I2 11.50 ± 0.25 7.00 ± 0.25 0.60 ± 0.25 --- 3.20 ± 0.25 1.60 ± 0.25 0.64 ± 0.25 0.50 ± 0.25 0.50 ± 0.25 2.90 ± 0.25 2.60 ± 0.25 1mΩ ≤ R ≤ 3mΩ 5.10 ± 0.25 2.54 ± 0.25 0.80 ± 0.25 1.30 ± 0.25 1.30 ± 0.25 4mΩ 5.10 ± 0.25 2.54 ± 0.25 0.64 ± 0.25 0.80 ± 0.25 0.80 ±0.25 1mΩ ≤ R ≤ 5mΩ 6.50 ± 0.20 3.20 ± 0.20 0.65 ± 0.15 0.90 ± 0.20 0.90 ± 0.20 Current Sensing Chip Resistors PA2512 (1) L Wide terminal Resistance range L W H I1 I2 PE0306 (2) 5mΩ ≤ R ≤ 100mΩ 0.90 ± 0.20 1.70 ± 0.20 0.65 ± 0.20 0.25 ± 0.15 0.25 ± 0.15 PE0508 (2) 3mΩ ≤ R ≤ 100mΩ 1.35 ± 0.20 2.10 ± 0.20 0.65 ± 0.20 0.43 ± 0.15 0.43 ± 0.15 1mΩ 1.60 ± 0.20 3.20 ± 0.20 0.60 ± 0.15 0.55 ± 0.20 0.55 ± 0.20 PE0612 (2) 2mΩ ≤ R ≤ 4mΩ 1.60 ± 0.20 3.20 ± 0.20 0.60 ± 0.15 0.40 ± 0.20 0.40 ± 0.20 5mΩ ≤ R ≤ 300mΩ 1.60 ± 0.20 3.20 ± 0.20 0.60 ± 0.15 0.30 ± 0.20 0.30 ± 0.20 1mΩ 2.50 ± 0.20 3.70 ± 0.20 0.60 ± 0.15 0.95 ± 0.20 0.95 ± 0.20 2mΩ 2.50 ± 0.20 3.70 ± 0.20 0.60 ± 0.15 0.75 ± 0.20 0.75 ± 0.20 3mΩ ≤ R ≤ 100mΩ 2.50 ± 0.20 3.70 ± 0.20 0.60 ± 0.15 0.60 ± 0.20 0.60 ± 0.20 6 / 8 / 10mΩ 2.00 ± 0.20 7.50 ± 0.30 0.60 ± 0.15 0.60 ± 0.15 0.60 ± 0.15 1mΩ ≤ R ≤ 100mΩ (except 6/8/10mΩ) 2.50 ± 0.20 7.50 ± 0.30 0.60 ± 0.15 0.58 ± 0.15 0.58 ± 0.15 PE0815 (2) PE0830 (2) PE1225 (2) 1mΩ 3.10 ± 0.20 6.30 ± 0.20 0.60 ± 0.15 1.15 ± 0.20 1.15 ± 0.20 2mΩ ≤ R ≤ 100mΩ 3.10 ± 0.20 6.30 ± 0.20 0.60 ± 0.15 0.50 ± 0.20 0.50 ± 0.20 Product Portfolio Type 4 terminal D W C PS0306 / PS0508 / PS0612 A L A C C PS1225 A H A unit: mm Type Resistance range L W A D C H PS0306 10mΩ ≤ R ≤ 50mΩ 0.80 ± 0.20 1.60 ± 0.20 0.25 ± 0.20 0.30 ± 0.15 0.30 ± 0.15 0.55 ± 0.20 PS0508 10mΩ ≤ R ≤ 50mΩ 1.25 ± 0.20 2.00 ± 0.20 0.25 ± 0.20 0.20 ± 0.15 0.30 ± 0.20 0.55 ± 0.20 PS0612 (2) 0.5mΩ ≤ R ≤ 100mΩ 1.60 ± 0.20 3.20 ± 0.20 0.45 ± 0.20 0.50 ± 0.20 0.65 ± 0.20 0.60 ± 0.20 PS1225 (2) 3mΩ ≤ R ≤ 100mΩ 3.10 ± 0.20 6.30 ± 0.20 0.80 ± 0.20 --- 2.20 ± 0.20 0.60 ± 0.15 Note: 1. Apply to ordering codes ending in “L” 2. Apply to ordering codes ending in “Z” Please contact sales offices, distributors and representatives in your region before ordering 9 Product Selection Tables T. C. R. - RL series Type T.C.R RL0402 RL0603 RL0805 / RL1206 / RL2010 50mΩ≤R<100mΩ 100mΩ≤R<500mΩ 500mΩ≤R<1Ω ±1000 ppm/°C ±800 ppm/°C ±300 ppm/°C 10mΩ≤R≤36mΩ 36mΩ<R≤91mΩ 91mΩ<R≤500mΩ 500mΩ<R<1Ω ±1 500 ppm/°C ±1 200 ppm/°C ±800 ppm/°C ±300 ppm/°C 10mΩ≤R≤18mΩ 18mΩ<R≤47mΩ 47mΩ<R≤91mΩ 91mΩ<R≤360mΩ 360mΩ<R≤500mΩ 500mΩ<R<1Ω ±1 500 ppm/°C ±1 200 ppm/°C ±1 000 ppm/°C ±200 ppm/°C ±600 ppm/°C ±300 ppm/°C RL1210 ±1 500 ppm/°C ±1 000 ppm/°C ±800 ppm/°C ±600 ppm/°C ±300 ppm/°C ±200 ppm/°C RL2512 ±1 500 ppm/°C ±1 200 ppm/°C ±800 ppm/°C ±600 ppm/°C ±300 ppm/°C ±200 ppm/°C RL1218 10mΩ≤R≤30mΩ 30mΩ<R≤56mΩ 56mΩ<R≤180mΩ 180mΩ<R<1Ω ±2 000 ppm/°C ±1 000 ppm/°C ±700 ppm/°C ±250 ppm/°C Electrical characteristics Global part number Max. Operating Series Size Power rating voltage Temp. range RL0402xR-07xxxxL 0402 1/16W RL0603xR-07xxxxL 0603 1/10W RL0805xR-07xxxxL 0805 RL0805xR-7WxxxxL RL1206xR-07xxxxL RL1206xR-7WxxxxL RL 1206 1/2W RL1218xK-07xxxxL 1218 1W RL2010xK-07xxxxL 2010 3/4W RL2512xK-07xxxxL 2512 1W 0402 1/6W PT0603xRx07xxxxL 1/10W 0603 PT0603xRx7WxxxxL PT 1/5W 1/3W PT0805xR-07xxxxL PT1206xR-7WxxxxL (PxR)^1/2 -55°C to 125°C 10mΩ ≤ R < 1Ω Pls refer to above table “T. C. R. - RL series“ 50mΩ ≤ R < 68mΩ ± 600 ppm/°C 68mΩ ≤ R < 100Ω ± 300 ppm/°C 100mΩ ≤ R < 1Ω ± 200 ppm/°C 1/8W PT0402xRx7TxxxxL PT1206xR-07xxxxL ±1% ±2% ±5% 50mΩ ≤ R < 1Ω 1/16W PT0402xRx7WxxxxL 10 1/4W 1/2W PT0805xR-7WxxxxL T. C. R. 1/4W 1210 PT0603xRx7TxxxxL Tol. 1/8W RL1210xR-07xxxxL PT0402xRx07xxxxL Resistance range 50mΩ ≤ R < 1Ω ±1% ±2% ±5% (PxR)^1/2 -55°C to 155°C 1/8W 0805 1206 1/4W 1/4W 1/2W 50mΩ ≤ R < 1Ω 50mΩ 50mΩ < R < 68mΩ 68mΩ ≤ R < 100Ω 100mΩ ≤ R < 1Ω 0/+400 ppm/°C 0/+350 ppm/°C 0/+300 ppm/°C ±200 ppm/°C 50mΩ 0/+350 ppm/°C 50mΩ < R < 68mΩ 0/+300 ppm/°C 68mΩ ≤ R < 100Ω 0/+250 ppm/°C 100mΩ ≤ R < 1Ω ±100 ppm/°C 50mΩ≤ R <75mΩ ±350ppm/°C 75mΩ≤ R ≤100mΩ ±100ppm/°C 100mΩ< R <1Ω ±75ppm/°C Global part number Max. Operating Series Size Power rating voltage Temp. range PT2010xK-07xxxxL PT2010xK-7WxxxxL PT 2512 PT2512xK-7WxxxxL PE0402xRx07xxxxxx 3/4W 1W 1W 100mΩ ≤ R < 1Ω (PxR)^1/2 -55°C to 155°C 100mΩ ≤ R < 1Ω 2W Tol. ±1% ±2% ±5% 0402 1/8W PE0402xRx47xxxxxx 1/4W PE0603xRx07xxxxxx 1/10W PE0603xRx7Wxxxxxx 1/5W 0603 2/5W PE0603xRx57xxxxxx 1/2W PE0805xRx07xxxxxx 1/8W PE0805xRx7Wxxxxxx -55°C to 155°C 10mΩ ≤ R ≤ 50mΩ 1/3W PE0603xRx47xxxxxx ±100 ppm/°C 5mΩ ≤ R ≤ 100mΩ 1/4W PE0805xRx47xxxxxx -55°C to 170°C 3mΩ ≤ R ≤ 100mΩ ±1% 1/3W (PxR)^1/2 ±5% 1/2W PE1206xxx07xxxxxx 1/4W PE 0805 1206 PE1206xxx7Wxxxxxx PE1206xxx47xxxxxx 2010 PE2010xKx7Wxxxxxx PE2512xKx07xxxxxx 2512 PE2512xKx7Wxxxxxx PE4527xKx07xxxxxx 4527 PE4527xKx7Wxxxxxx PR1206xKx07xxxxxx 3mΩ ≤ R ≤ 100mΩ 1/2W 1/2W 5mΩ ≤ R ≤ 100mΩ 1W 1W 6mΩ ≤ R ≤ 100mΩ 2W 2W 5mΩ ≤ R < 910mΩ 3W 1/4W 1206 PR1206xKx7Wxxxxxx PR PR2010xKx07xxxxxx PA2512xKF07xxxxL 1mΩ ≤ R ≤ 4mΩ 1/2W 1W 2010 PR2010xKx7Wxxxxxx PA2512xKF7TxxxxL ±50 ppm/°C ±75 ppm/°C ±100 ppm/°C 1W PE2010xKx07xxxxxx PA2512xKF7WxxxxL 100mΩ ±100 ppm/°C 100mΩ < R < 1Ω ±75 ppm/°C Product Selection Table PE0603xRx7Txxxxxx PR1206xKx47xxxxxx 100mΩ ±100 ppm/°C 100mΩ < R < 1Ω ±75 ppm/°C 1/16W PE0402xRx7Wxxxxxx PE0805xRx7Txxxxxx T. C. R. Current Sensing Chip Resistors PT2512xK-07xxxxL 2010 Resistance range (PxR)^1/2 -55°C to 170°C 1/2W ±1% ±5% ±50 ppm/°C ±1% ±5% ±100 ppm/°C 1mΩ ≤ R < 4mΩ 1W 1W PA 2512 2W (PxR)^1/2 –55°C to 155°C 1mΩ ≤ R ≤ 5mΩ 3W 11 Wide terminal Global part number Max. Operating Series Size Power rating voltage Temp. range Resistance range PE0306xRM07xxxxx 0306 1W 5mΩ≤ R ≤ 100mΩ PE0508xRM07xxxxx 0508 1.2W 3mΩ≤ R ≤ 100mΩ 0612 2W 0815 1W PE0830xKM7Wxxxxx 0830 3W 1mΩ≤ R ≤ 100mΩ PE1225xKM7Wxxxxx 1225 3W 1mΩ≤ R ≤ 100mΩ PE0612xKM7Wxxxxx PE0815xKM7Wxxxxx PE (PxR)^1/2 –55°C to 170°C 1mΩ≤ R ≤ 300mΩ 1mΩ≤ R ≤ 100mΩ Tol. T. C. R. ±1% ±5% ±75 ppm/°C ±100 ppm/°C Tol. T. C. R. 4 terminal Global part number Max. Operating Series Size Power rating voltage Temp. range PS0306xRx07xxxxxx 0306 PS0306xRx7Wxxxxxx PS0508xRx07xxxxxx PS0508xRx7Wxxxxxx PS0508xRx7Txxxxxx 1/8W –55°C to 155°C 1/4W 1/8W PS 0508 1/4W 1/2W Resistance range ±75 ppm/°C ±100 ppm/°C 10mΩ ≤ R ≤ 50mΩ ±1% ±5% (PxR)^1/2 –55°C to 170°C PS0612xKM07xxxxx 0612 1W 0.5mΩ, 0.75mΩ 1mΩ ≤ R ≤ 5mΩ PS1225xKM07xxxxx 1225 3W 4mΩ ≤ R ≤ 50mΩ 0.5mΩ, 0.75mΩ ±700 ppm/°C 1mΩ ≤ R ≤ 2mΩ ±400 ppm/°C 3mΩ ≤ R ≤ 5mΩ ±150 ppm/°C ±75 ppm/°C ±100 ppm/°C Jumper Global part number Series RL0402-R-070RL RL0603-R-070RL RL0805-R-070RL Operating Temp. range 0402 RL 0603 0805 -55°C to 155°C Max. Resistance Rated Current 20mΩ 1.5A 20mΩ 2A 20mΩ 2.5A RL1206-R-070RL 1206 20mΩ 3.5A PT0402-R-070RL 0402 10mΩ 3A PT0603-R-070RL 0603 8mΩ 5A 5mΩ 6A 5mΩ 10A PT0805-R-070RL PT1206-R-070RL 12 Size PT 0805 1206 -55°C to 155°C Environmental characteristics Performance test Life High temperature exposure Procedure Requirements MIL-STD-202Gmethod 108A MIL-STD-202Gmethod 108A 1 000 hours at 70°C ±5°C applied RCWV 1.5 hours on, 0.5 hours off, still air required 1 000 hours at maximum operating temperature depending on specification, unpowered Each temperature / humidity cycle is defined as 8 hours (method 106F), 3 cycles / 24 hours for 10d with 25°C / 65°C 95% R.H Electrical test not required. Magnification 50X Lead-free solder bath at 245 ±3°C Dipping time: 3 ±0.5 seconds ±(1%+ 0.0005Ω) <20mΩ for jumper ±(1%+ 0.0005Ω) <20mΩ for jumper MIL-STD-202Gmethod 106F Wetting IPC/JEDECJSTD-002B testB Resistance to soldering heat MIL-STD-202Gmethod 210F Solderability Current Sensing Chip Resistors Moisture resistance Test method ±(0.5%+ 0.0005Ω) <20mΩ for jumper Lead-free solder, 260°C, 10 seconds immersion time Well tinned (≥95% covered) No visible damage ±(0.5%+ 0.0005Ω) <10mΩ for jumper No visible damage Short time overload MIL-R-55342Dpara 4.7.5 Product Portfolio PT/RL standard power: 6.25 times of rated power for 5 seonds at room temperature ±(1%+ 0.0005Ω) <10mΩ for jumper No visible damage PA/PR/PE/PS & PT/RL high power: 5 times of rated power for 5 seconds at room temperature PT/RL jumper: 2.5 times of rated current for 5 seconds at room temperature Packing quantities Size code Tape width 178mm / Ø7” reel 330mm / Ø13" reel Paper Embossed Paper 0306 8mm 5 000 --- --- 0402 8mm 10 000 --- 50 000 (1) 0508 8mm 5 000 --- --- 0603 8mm 5 000 --- 20 000 (1) 0612 8mm --- 5 000 --- 0805 8mm 5 000 --- 20 000 (1) 0815 8mm --- 4 000 --- 0830 16mm --- 4 000 --- 1206 8mm 5 000 4 000 20 000 (1) 1210 8mm 5 000 --- 20 000 (1) 1218 12mm --- 4 000 --- 1225 12mm --- 4 000 2010 12mm --- 2512 12mm --- 4 000 --- 4527 24mm --- 1 000 --- 4 000 / 2 000 --(2) --- Note: (1) RL/PT series only (2) PR series with ordering code ending in “Z” 13 Explanation of ordering code PT 2512 F K - 07 0R1 L Series name (code 1-2) Default Code (code 17) RL = Thick film current sensor PT = Thick film current sensor low T. C. R. PA/PR/PE = Current sensor - low T. C. R. PS = 4 terminal, Current sensor L / Z = Default code Resistance (code 12-16) There are 2~5 digits indicated the resistance value. Letter R is decimal point. Ex: 0R = Jumper 0R1 = 0.1Ω 0R01 = 0.01Ω 0R001= 0.001Ω 0U5= 0.0005Ω Size code (inch / metric) (code 3-6) 0306 = 0.8 x 1.6 0402 = 1.0 x 0.5 0508 = 1.25 x 2.0 0603 = 1.6 x 0.8 0612 = 1.6 x 3.2 0805 = 2.0 x 1.25 0815 = 2.15 x 3.75 0830 = 2.0 x 7.5 1206 = 3.2 x 1.6 1210 = 3.2 x 2.5 1218 = 3.2 x 4.5 1225 = 3.2 x 6.3 2010 = 5.0 x 2.5 2512 = 6.35 x 3.2 4527 = 11.0 x 7.0 Taping Reel (code 10-11) 07 = 7 inch Dia. reel 13 = 13 inch Dia. reel 7W = 7 inch Dia. reel 2 x standard power type 7T = 7 inch Dia. reel 3 x standard power type 47 = 7 inch Dia. reel 4 x standard power type 57 = 7 inch Dia. reel 5 x standard power type Tolerance (code 7) F = ±1% G = ±2% J = ±5% “–” for Jumper ordering T.C.R (code 9) E = ±50 ppm/°C M = ±75 ppm/°C F = ±100 ppm/°C “–” Based on spec. (– for RL/PT only) Packing style (code 8) R = Paper tape reel K = Embossed plastic tape reel Cross reference 14 Yageo Vishay Rohm KOA Cyntec TT/IRC Susumu Features RL/PT Series D..LR/ CRCW,RCWE UCR SR73/ UR73 RLT LRC, LRF, LVC RLT Thick Film 0402~2512, 0R05~0R91, Current sensing PR/PE Series WSL/WSLP PMR/PML TLR RLT ULR, LVC KRL, RL Metal Alloy, 0402~4527, 0R001~0R1, low TCR, used in middle/high power PT0402 RCWE0402 UCR01 SR731E RLT0510 LVC0402 RLT0510 0402, 0R1~0R91 Thick Film current sensing PE0603 WSL0603 PMR03 - RL0816 - - 0603, 0R005~0R1, TC75, Metal Foil, current sensing PE0805 WSL0805 PMR10 - RL1220 - - 0805, 0R003~0R1 , TC75, Metal Foil, current sensing PE4527 WSR2/3/5 - SL2/ SLN2 - - - Metal Alloy, 4527, 5W, low TCR, high power current sensing Customer Support & Distribution Network We bring to the market a proven innovative tradition and a commitment to service second to none. Please see the back cover for contact details of your local Yageo organization. We support our customers with extensive literature including datasheets, brochures and application notes, which are also available electronically on our website at: www.yageo.com In addition, our field application engineers constantly strive wherever possible, to work closely with customers to aid them with design-in and provide them with the support they need to remain competitive in their markets. All Information given herein is believed to be accurate and reliable, but is presented without guarantee, warranty, or responsibility of any kind, expressed or implied. Statements of suitability for certain applications are based on our knowledge of typical operating conditions for such applications, but are not intended to constitute -and we specifically disclaim-any warranty concerning suitability for a specific customer application or use. This Information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. Any technical advice inferred from this Information or otherwise provided by us with reference to the use of our products is given gratis, and we assume no obligation or liability for the advice given or results obtained. Explanation of ordering code / Cross reference Our sales/services offices are strategically located to serve our customers worldwide and our international distributor network improves our product availability, delivery lead time and our service anywhere in the world. All product specifications, statements, information and data (collectively, the “Information”) are subject to change without notice. Current Sensing Chip Resistors Yageo sales representatives are available to visit you to discuss the technical and commercial issues appropriate to your project or requirement. Customer service can initiate new orders, change orders, request air shipments or drop shipments, product samples, and generally support your business on a day to day basis. Disclaimer Although we design and manufacture our products to the most stringent quality and safety standards, given the current state of the art, isolated component failures may still occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards (such as installation of protective circuitry or redundancies) in order to ensure that the failure of an electrical component does not result in a risk of personal injury or property damage. Although all product-related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicated or that other measures may not be required. 15 YAGEO - A GLOBAL COMPANY HQ Taipei, Taiwan Tel. +886 2 6629 9999 Fax. +886 2 6628 8886 Mail: [email protected] China and ASIA EUROPE NORTH AMERICA Suzhou, China Singapore Munich, Germany San Jose, U.S.A. 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Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent or other industrial or intellectual property rights. Printed in Taiwan Document order number: YL 100 00146 Date of release: April 2014