www.yageo.com Low-Ohmic Chip Resistors Low-Ohmic Chip Resistors INTRODUCTION Yageo’s low-ohmic chip resistor ranges are the ideal replacement for traditional wirewound and leaded products in modern power control circuits. Based on the company’s thick film technology, these products exhibit far lower parasitic inductance than their wirewound and leaded counterparts. They are also fully compatible with today’s high volume pick-andplace assembly systems. As such, they offer attractive, cost-effective solutions to designers of low voltage power supplies and battery management systems. FEATURES • Excellent T.C.R. performance • Standardized sizes which makes them easily interchangeable • Compatibility with surface-mount assembly processes • Ultra-low resistance and narrow tolerance, suitable for current detection • High component and equipment reliability • RoHS/REACH compliant & Halogen free Low-ohmic chip resistors in circuit Low-ohmic resistors are used in power sensing applications, for example, to sense output current in power supplies and automotive engine management systems. As shown in figure 1, a typical function for a low-ohmic chip resistor is as a current sensor (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. A trade-off is therefore necessary between choke volume and output current ripple. Experience indicates that a ripple of 0.3 provides a good compromise in this area. With this ripple value, the peak output current Ipeak is 15% greater than the average current Iavg, i.e. Ipeak = 1.15 x Iavg (Figure 2). Figure 2 Relationship between average output current and peak current with a ripple of 0.3 Figure 1 Low-ohmic chip resistor in current sensing application The sensing voltage Vs is given by the simple relation: 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 low-ohmic chip resistor with a power rating 1.0 W would then be recommended for this application to provide an adequate safety margin. Effect of component characteristics on current sensing applications Average output current versus peak output current In the feedback circuit of figure 1, the output current Io through the choke L is not a pure DC but exhibits some ripple. 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. Safety margin for setting the feedback voltage The voltage generated across the sensing resistor is used in a feedback network to trigger the power switching IC.To allow for variations in the characteristics of the power switching IC, a safety margin for the sensing voltage is necessary. A -20% margin on sensing voltage is usually taken for general applications. Tolerances on sensing resistance As mentioned earlier, the relation between low-ohmic resistance, feedback sensing voltage and output current is given by Rsense = Vs/Io. With an output ripple of 0.3, i.e. a 30% (± 15%) deviation on output current and a safety margin on the sensing voltage of -20%, the allowable deviation on Rsense is: 0.8 x Vs 1.15 x I o Vs 0.85 x I o With say, Vs= 100 mV and Io= 5 A, the allowable low ohmic sensing resistance must lie in the range 14mΩ to 24mΩ. Consideration of T.C.R. in current sensing applications The above discussion does not, of course, take into account the effects of the temperature coefficient of resistance (T.C.R.) on current sensing applications. With a maximum deviation of 30% on output current and a safety margin of 20% on sensing voltage, the maximum allowable deviation on sensing resistance is 50%. The limit on T.C.R. is then given by: T.C.R. T.C.R. 0.5 3 Figure 3 plots the allowable T.C.R. values required to maintain tolerance on sensing resistance within the specified limit. T.C.R. values of Yageo’s low-ohmic chip resistors fall well within these allowed limits over the temperature range 25°C to 125°C. Detecting over current As a means to detect the current passing through the transistor, see figure 5, a resistor in series is added between an emitter and a ground. This resistor should neither emit smoke nor catch fire even when the switching transistor breaks down to be subjected to a larger current. In addition, reduced parasitic inductance is required, particularly for the high frequency switching control. Recommended resistors with low resistance are metal plate type, like PF series. Figure 3 Allowable T.C.R. values with 50% total deviation on output current and feedback voltage For some precision applications, the deviation in output current and the safety margin on sensing voltage may need to be reduced to say 10% on each, giving a total maximum deviation on sensing voltage of 20%. The limit on T.C.R. is then: T.C.R. 0.2 which is plotted in Figure 4. Even with these tighter margins, the T.C.R. values of Yageo’s low-ohmic resistor chips (shown in the shaded region in Figure 4) fall well within the allowable T.C.R. level. This shows that for most applications, T.C.R. is not an issue in sensing applications. Figure 5 Over current protection circuit DC/DC converter The figure 6 below shows the current detecting circuit of a DC/DC converter. The voltage across the current detecting resistor is fed back to control the output power. The resistance should be low to reduce power dissipation, and the resistor should stand against repeated rush current. Furthermore the self-inductance should be low for high frequency applications. Recommended types are PT series chip resistors. As for high frequency DC/DC converters, metal plate chip resistors PF series best fit in. Figure 6 DC/DC converter circuit Figure 4 Allowable T.C.R. values with 20% total deviation on output current and feedback voltage 4 Applications Yageo’s low-ohmic chip resistors are optimized for current sensing control. The low-ohmic current sensors, available from 0.0625 to 3 wat ts, are applic able t o b at ter y p ack , 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 milli-ohms to 1 ohm and superior temperature coefficient (T.C.R.) performance is able to meet various customer demands and applications. CONSUMER GOODS COMPUTER - Home appliances - Notebook/tablet - Lighting - Power supplies - LCD TV - Battery management - Digital camera - DC/DC converters - Game console - Disk drives TELECOM INDUSTRIAL - Mobile phones - Power supplies - Base stations - Current detection - Modems - Stepper motor - Set-top-Box AUTOMOTIVE ALTERNATIVE ENERGY - Engine management - Pulse loading - Current sensing - Power inverter - Voltage division - Signal conditioning 5 General information Global part number Max. Operating Series Size Power rating voltage Temp. range RL0402xR-07xxxxL 0402 1/16W (PxR)^1/2 RL0603xR-07xxxxL 0603 1/10W (PxR)^1/2 RL0805xR-07xxxxL 0805 RL0805xR-7WxxxxL RL1206xR-07xxxxL RL1206xR-7WxxxxL RL 1206 RL1210xR-07xxxxL 1210 RL1218xK-07xxxxL 1218 RL2010xK-07xxxxL 2010 RL2512xK-07xxxxL 2512 Resistance range Tol. T. C. R. ±1% ±2% ±5% Pls refer to below table “T. C. R. - RL series“ 100mΩ ≤ R < 1Ω 1/8W (PxR)^1/2 1/4W (PxR)^1/2 1/4W (PxR)^1/2 1/2W (PxR)^1/2 -55°C to 125°C 10mΩ ≤ R < 1Ω 1/2W (PxR)^1/2 1W (PxR)^1/2 3/4W (PxR)^1/2 1W (PxR)^1/2 T. C. R. - RL series 100mΩ≤R<500mΩ 500mΩ≤R<1Ω ±800 ppm/°C ±300 ppm/°C RL0402 RL0603 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 RL0805 / RL1206 / RL2010 ±1 500 ppm/°C RL1210 / RL2512 ±1 500 ppm/°C RL1218 Global part number PT2512xKx7WxxxxL PT0815xK-07xxxxL ±600 ppm/°C ±300 ppm/°C ±200 ppm/°C 180mΩ<R<1Ω ±2 000 ppm/°C ±1 000 ppm/°C ±700 ppm/°C ±250 ppm/°C 0603 PT 0805 1206 2010 2512 PT 0815 PT0815xK-7WxxxxL (Wide) 6 ±800 ppm/°C Resistance range Tol. 1/8W 100mΩ ≤ R < 1Ω ±200 ppm/°C 68mΩ ±300 ppm/°C 1/10W ±200 ppm/°C 1/5W 1/8W ±1% ±2% ±5% 1/4W (PxR)^1/2 -55°C to 155°C 1/4W 1/2W T. C. R. 68mΩ ≤ R < 100mΩ ±300 ppm/°C 68mΩ ≤ R < 1Ω 1/6W PT0805xRx07xxxxL PT2512xKx07xxxxL ±1 000 ppm/°C 56mΩ<R≤180mΩ 0402 PT0603xRx7WxxxxL PT2010xKx7WxxxxL ±200 ppm/°C 1/16W PT0603xRx07xxxxL PT2010xKx07xxxxL ±300 ppm/°C 30mΩ<R≤56mΩ !PT0402xRx7TxxxxL PT1206xRx7WxxxxL ±600 ppm/°C Max. Operating Series Size Power rating voltage Temp. range PT0402xRx7WxxxxL PT1206xRx07xxxxL ±1 000 ppm/°C 10mΩ≤R≤30mΩ PT0402xRx07xxxxL PT0805xRx7WxxxxL ±1 200 ppm/°C ±100 ppm/°C 100mΩ ≤ R < 1Ω 3/4W 100mΩ ±100 ppm/°C 100mΩ < R < 1Ω ±75 ppm/°C 1W 1W 2W 1/2W 1W ±1% (PxR)^1/2 -55°C to 155°C 25mΩ ≤ R ≤ 50mΩ ±2% ±5% ±100 ppm/°C Global part number Max. Operating Series Size Power rating voltage Temp. range !PR1206xKx07xxxxxx 1206 1/2W !PR1206xKx47xxxxxx 2010 PR 1W 2512 1W !PR2512DKx7Wxxxxxx 2W !PF0603xRx57xxxxxx 0603 1/2W PF0805xRx07xxxxxx 1/8W PF0805xRx7Wxxxxxx 0805 PF0805xRx7Txxxxxx !PF0805xRx47xxxxxx PF !PF2010xKx7Wxxxxxx 1206 2010 PF2512xKx07xxxxxx 2512 !PF2512xKx7Txxxxxx !PH0805xRx07xxxxxx PH1206xRx07xxxxxx 0612 PF 0815 (Wide) 0830 PH !PE0603xRx57xxxxxx !PE0805xRx47xxxxxx !PE1206xRx47xxxxxx PE2512xKx7Wxxxxxx Global part number !PT0603-R-xx0RL !PT1206-R-xx0RL 1206 4mΩ ≤ R ≤ 100mΩ 1/4W (PxR)^1/2 -55°C to 155°C 1/2W 1W ±1% ±2% 3mΩ ≤ R < 100mΩ ±5% 1mΩ ≤ R < 100mΩ 2W 3W 1mΩ ≤ R ≤ 50mΩ 1W 1mΩ ≤ R ≤ 50mΩ 1W (PxR)^1/2 -55°C to 155°C 1mΩ ≤ R ≤ 20mΩ 2W 1mΩ ≤ R < 100Ω 0805 1/2W 1206 1W 2512 2W ±75 ppm/°C 5mΩ ≤ R < 100mΩ ±1% ±2% ±5% ±75 ppm/°C ±1% ±2% ±5% ±75 ppm/°C 4mΩ ≤ R < 100mΩ ±1% ±2% 3mΩ ≤ R < 100mΩ ±5% ±75 ppm/°C (PxR)^1/2 -55°C to 155°C 4mΩ ≤ R ≤ 50mΩ 5mΩ ≤ R < 100mΩ 0603 1/2W PE ±50 ppm/°C 5mΩ ≤ R ≤ 100mΩ 1/3W 1W 3mΩ ≤ R < 5mΩ ±100 ppm/°C 7mΩ ≤ R ≤ 75mΩ ±0.5% 1/4W 0805 4/5W 0.5mΩ ≤ R ≤ 2mΩ ±200 ppm/°C 0.5mΩ ≤ R ≤ 10mΩ 1W PF2512xKx7Wxxxxxx ±1% 1mΩ ≤ R < 100mΩ ±2% ±5% 0.5mΩ ≤ R < 5mΩ 1/2W PF1206xxx7Wxxxxxx !PF0830xK-07xxxxx (PxR)^1/2 -55°C to 155°C 3W !PR2512DKx07xxxxxx PF0815xK-7Wxxxxx ±50 ppm/°C 2W !PR2512xKx7Txxxxxx PF0612xK-07xxxxxx 1mΩ ≤ R ≤ 6mΩ 1/2W 1W PR2512xKx7Wxxxxxx PF1206xxx07xxxxxx T. C. R. 1W PR2010xKx07xxxxxx PR2512xKx07xxxxxx Tol. 1/4W !PR1206xKx7Wxxxxxx PR2010xKx7Wxxxxxx Resistance range (PxR)^1/2 -55°C to 155°C 1mΩ ≤ R < 100mΩ Series Size Power rating PT (Jumper) 0603 1/4W 1206 1/2W Operating Temp. range -55°C to 155°C Max. Resistance Rated Current 8mΩ 5A 5mΩ 10A Note: “ ! ” is the symbol for new product 7 Dimensions Wide termination I1 I1 I1 I1 H H W I2 I2 L Type I2 I2 W L unit: mm Resistance range L W H I1 I2 100mΩ ≤ R < 1Ω 1.00 ±0.10 0.50 ±0.05 0.35 ±0.05 0.20 ±0.10 0.25 ±0.10 RL0603 1.60 ±0.10 0.80 ±0.10 0.45 ±0.10 0.25 ±0.15 0.25 ±0.15 RL0805 2.00 ±0.10 1.25 ±0.10 0.50 ±0.10 0.35 ±0.20 0.35 ±0.20 RL1206 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 3.05 ±0.15 4.60 ±0.20 0.55 ±0.10 0.45 ±0.25 0.50 ±0.25 RL2010 5.00 ±0.10 2.50 ±0.15 0.55 ±0.10 0.60 ±0.20 0.50 ±0.20 RL2512 6.35 ±0.10 3.20 ±0.15 0.55 ±0.10 0.60 ±0.20 0.50 ±0.20 1.00 ±0.10 0.50 ±0.05 0.35 ±0.05 0.20 ±0.10 0.25 ±0.10 PT0603 1.60 ±0.10 0.80 ±0.10 0.45 ±0.10 0.25 ±0.15 0.25 ±0.15 PT0805 2.00 ±0.10 1.25 ±0.10 0.55 ±0.10 0.35 ±0.20 0.35 ±0.20 3.10 ±0.10 1.60 ±0.10 0.55 ±0.10 0.45 ±0.20 0.45 ±0.20 PT2010 5.00 ±0.10 2.50 ±0.15 0.55 ±0.10 0.60 ±0.20 0.50 ±0.20 PT2512 6.35 ±0.10 3.20 ±0.15 0.55 ±0.10 0.60 ±0.20 0.50 ±0.20 1mΩ ≤ R ≤ 6mΩ 3.20 ±0.25 1.60 ±0.25 0.64 ±0.25 0.50 ±0.25 0.50 ±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 ≤ R ≤ 100mΩ 5.10 ±0.25 2.54 ±0.25 0.64 ±0.25 0.80 ±0.25 0.80 ±0.25 1mΩ ≤ R ≤ 2mΩ 6.40±0.20 3.20±0.20 0.75±0.15 1.20±0.20 1.20±0.20 3mΩ ≤ R ≤ 5mΩ 6.40±0.20 3.20±0.20 0.55±0.10 0.60±0.20 0.60±0.20 0.5mΩ ≤ R ≤ 4mΩ 6.25±0.25 3.30±0.25 0.78±0.25 1.88±0.25 1.88±0.25 5mΩ ≤ R ≤ 75mΩ 6.25±0.25 3.30±0.25 0.64±0.25 1.11±0.25 1.11±0.25 PF/PE0603 (2) 5mΩ ≤ R < 100m 1.60 ±0.20 0.80 ±0.20 0.60 ±0.15 --- 0.30 ±0.15 PF/PH0805 (1) 10mΩ ≤ R ≤ 50mΩ 2.03 ±0.25 1.27 ±0.25 0.33 ±0.12 0.38 ±0.25 0.38 ±0.25 RL0402 RL1210 PT0402 PT1206 PR1206 (2) PR2010 (2) PR2512 (1) PR2512 (2) 10mΩ ≤ R < 1Ω 68mΩ ≤R < 1Ω 100mΩ ≤R < 1Ω 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 unit: mm Type PF/PH/PE 0805 (2) PF/PH1206 (1) PF/PH/PE 1206 (2) PF2010 (2) PF2512 (1) Resistance range L W H I1 I2 4mΩ 2.00±0.20 1.25±0.20 0.60±0.15 --- 0.70±0.15 5mΩ 2.00±0.20 1.25±0.20 0.60±0.15 --- 0.63±0.15 6mΩ ≤ R ≤7mΩ 2.00±0.20 1.25±0.20 0.60±0.15 --- 0.55±0.15 8mΩ ≤ R < 100mΩ 2.00±0.20 1.25±0.20 0.60±0.15 --- 0.40±0.15 10mΩ≤ R ≤ 50mΩ 3.20 ±0.25 1.60 ±0.25 0.60 ±0.25 0.50 ±0.25 0.65 ±0.25 3mΩ 3.20±0.20 1.60±0.20 0.60±0.15 --- 1.30±0.20 4mΩ 3.20±0.20 1.60±0.20 0.60±0.15 --- 1.20±0.20 5mΩ ≤ R ≤8mΩ 3.20±0.20 1.60±0.20 0.60±0.15 --- 1.15±0.20 9mΩ ≤ R < 100mΩ 3.20±0.20 1.60±0.20 0.60±0.15 --- 0.58±0.20 5mΩ ≤ R ≤9mΩ 5.00±0.20 2.50±0.20 0.60±0.15 --- 1.50±0.20 10mΩ ≤ R < 100mΩ 5.00±0.20 2.50±0.20 0.60±0.15 --- 0.60±0.20 6mΩ 6.45 ±0.25 3.25 ±0.25 0.70 ±0.25 0.75 ±0.25 1.85 ±0.25 7mΩ ≤ R ≤ 15mΩ 6.45 ±0.25 3.25 ±0.25 0.70 ±0.25 0.75 ±0.25 1.55 ±0.25 20mΩ ≤ R ≤ 50mΩ (1W) 6.45 ±0.25 3.25 ±0.25 0.70 ±0.25 1.30 ±0.25 0.75 ±0.25 20mΩ ≤ R ≤ 50mΩ (2W) 6.45 ±0.25 3.25 ±0.25 0.70 ±0.25 0.75 ±0.25 1.30 ±0.25 1mΩ 6.30±0.20 3.10±0.20 0.60±0.15 --- 2.93±0.20 2mΩ 6.30±0.20 3.10±0.20 0.60±0.15 --- 2.70±0.20 3mΩ 6.30±0.20 3.10±0.20 0.60±0.15 --- 2.50±0.20 4mΩ 6.30±0.20 3.10±0.20 0.60±0.15 --- 2.15±0.20 5mΩ 6.30±0.20 3.10±0.20 0.60±0.15 --- 1.95±0.20 6mΩ ≤ R ≤8mΩ 6.30±0.20 3.10±0.20 0.60±0.15 --- 1.90±0.20 9mΩ ≤ R < 100mΩ 6.30±0.20 3.10±0.20 0.60±0.15 --- 0.95±0.20 6mΩ ≤ R <1Ω 11.50±0.20 7.00±0.20 0.60±0.15 --- 2.60±0.20 PF/PE2512 (2) PF4527 (2) Wide termination PT0815 25mΩ ≤ R ≤ 50mΩ 2.00 ±0.10 3.70 ±0.10 0.50 ±0.10 0.35 ±0.20 0.40 ±0.20 PF0612 (2) 1mΩ ≤ R ≤ 50mΩ 1.60 ±0.20 3.20 ±0.20 0.60 ±0.15 --- 0.60 ±0.20 PF0815 (2) 1mΩ ≤ R ≤ 20mΩ 2.15 ±0.20 3.75 ±0.20 0.60 ±0.125 --- 0.60 ±0.20 PF0815 (1) 10/15/20mΩ 2.15 ±0.20 3.75 ±0.25 0.65 ±0.25 0.65 ±0.25 0.70 ±0.25 1mΩ ≤ R ≤ 9mΩ 2.5±0.20 7.50±0.30 0.60±0.15 --- 0.60 ±0.15 10mΩ ≤ R ≤ 100mΩ 2.5±0.20 7.50±0.30 0.60±0.15 --- 0.58 ±0.15 PF0830 (2) 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 Environmental characteristics Performance test Test method Procedure Requirements Life 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%+ 0.0005Ω) <20mΩ for jumper High temperature exposure MIL-STD-202Gmethod 108A 1 000 hours at maximum operating temperature depending on specification, unpowered ±(1%+ 0.0005Ω) <20mΩ for jumper Moisture resistance MIL-STD-202Gmethod 106F 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 ±(0.5%+ 0.0005Ω) <20mΩ for jumper Wetting IPC/JEDECJSTD-002B testB Electrical test not required. Magnification 50X Lead-free solder bath at 245 ±3°C Dipping time: 3 ±0.5 seconds Well tinned (≥95% covered) No visible damage Resistance to soldering heat MIL-STD-202Gmethod 210F Lead-free solder, 260°C, 10 seconds immersion time ±(0.5%+ 0.0005Ω) <10mΩ for jumper No visible damage Solderability PT/RL standard power: 6.25 times of rated power for 5 seonds at room temperature Short time overload MIL-R-55342Dpara 4.7.5 ±(1%+ 0.0005Ω) <10mΩ for jumper No visible damage PR/PE/PF/PH & PT/RL high power: 5 times of rated power for 5 seconds at room temperature PT jumper: 2.5 times of rated current for 5 seconds at room temperature Packing quantities Size code Tape width 10 178mm / Ø7” reel 254mm / Ø10" reel 330mm / Ø13" reel Paper Embossed Paper Paper 0402 8mm 10 000 --- 20 000 50 000 0603 8mm 5 000 --- 10 000 (1) 20 000 (1) 0612 8mm --- 5 000 --- --- 0805 8mm 4 000 (2) / 5 000 --- 10 000 (1) 20 000 (1) 0815 8mm --- 4 000 --- --- 0830 12mm --- 4 000 --- --- 1206 8mm 4 000 (2) / 5 000 (1) 4 000 10 000 (1) 20 000 (1) 1210 8mm 5 000 --- 10 000 (1) 20 000 (1) 1218 12mm --- 4 000 --- --- 2010 12mm --- 4 000 / 2 000 (3) --- --- 2512 12mm --- 4 000 / 2 000 --- --- 4527 24mm --- --- --- Note: (1) RL/PT series (2) PF/PH series with ordering code ending in “L” (3) PR series with ordering code ending in “Z” 2 000 (3) Explanation of ordering code PT 2512 F K – 07 0R01 L Code 7 Tolerance Code 17 Default Code F = ±1% G = ±2% J = ±5% “–” for Jumper ordering L / Z = Default code Code 9 T. C. R. Code 1-2 Series Name E = ±50 ppm/°C M = ±75 ppm/°C F = ±100 ppm/°C RL = Thick film low ohmic PT = Thick film low ohmic low T. C. R. PR/PF/PH/PE = Current sensor - low T. C. R. “–” Based on spec. (– for RL/PT only) Code 8 Packing Style Code 12-16 Resistance R = Paper tape reel K = Embossed plastic tape reel 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 Code 3-6 Size Code (inch / metric) Code 10-11 Taping Reel 0402 = 1.0 x 0.5 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 1218 = 3.2 x 4.5 2010 = 5.0 x 2.5 2512 = 6.35 x 3.2 4527 = 11.0 x 7.0 07 = 7 inch Dia. reel 10 = 10 inch Dia. reel 13 = 13 inch Dia. reel YAGEO - A GLOBAL COMPANY ASIA Beijing, China Dongguan, China Hong Kong, China Mudu, China Tel. +86 10 851 20810 Fax. +86 10 851 20200 Tel. +86 769 8772 0275 Fax. +86 769 8791 0053 Tel. +852 2342 6833 Fax. +852 2342 6588 Tel. +86 512 6651 8889 Fax. +86 512 6651 9889 Qingdao, China Suzhou, China Wuhan, China Chengdu, China Tel. +86 532 8797 0533 Fax. +86 532 8797 0533 Tel. +86 512 6825 5568 Fax. +86 512 6825 5386 Tel. +86 27 5983 8939 Fax. +86 27 5983 8939 Tel. +86 27 5983 8939 Fax. +86 27 5983 8939 Chongqing, China Saitama, Japan Seongnam, Korea Kuala Lumpur, Malaysia Tel. +86 27 5983 8939 Fax. +86 27 5983 8939 Tel. +81 48 795 8953 Fax. +81 48 795 8954 Tel. +82 31 712 4797 Fax. +82 31 712 5866 Tel. +60 3 8063 8864 Fax. +60 3 8063 7376 Singapore Taipei, Taiwan Tel. +65 6244 7800 Fax. +65 6244 4943 Tel. +886 2 2917 7555 Fax. +886 2 2917 4286 EUROPE Roermond, Benelux Suresnes, France Hamburg, Germany Munich, Germany Tel. +31 475 385 555 Fax. +31 475 385 589 Tel. +33 1 46 14 87 91 Fax. +33 1 46 14 87 92 Tel. +49 4121 870 189 Fax. +49 4121 870 271 Tel. +49 8999 216 552 Fax. +49 8999 216 200 Szombathely, Hungary Milan, Italy Moscow, Russian Federation Barcelona, Spain Tel. +36 30 3777 441 Fax. +36 94 517 701 Tel. +39 02 6129 1017 Fax. +39 02 6601 7490 Tel. +7 916 625 92 38 Fax. +7 498 610 07 07 Tel. +34 93 212 3929 Fax. +39 02 6601 7490 Surrey, UK Tel. +44 7831 79 7754 Fax. +31 475 385 589 NORTH AMERICA San Jose, U.S.A. Tel. +1 408 240 6200 Fax. +1 408 240 6201 For more detailed and always up-to-date contact details of sales offices, distributors and representatives, please go to our website at www.yageo.com © YAGEO Corporation All rights are reserved. 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 00137 Date of release: November 2011