Yageo`s Current-Sensing Chip Resistors

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
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please visit "contact us" at
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© 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 00146
Date of release: April 2014