PWR220/PWR221 S Series Shunt Resistor
Features
■Low TCR
■Low electrical noise
■Low inductance/capacitance
■High power rating
■Low ohmic values
Applications
■Power supplies
■Motor drives
■Test and measurement
■Electricity meters
General Information
The Bourns®PWR220 S Series is a TO220 style Shunt Resistor; the PWR221 S Series is a
TO221 style Shunt Resistor. Manufactured using foil on alumina ceramic, it is used in
applications such as power supplies, motor drives and measurements.
Electrical & Thermal Characteristics
Parameter Symbol Min. Nom. Max. Unit
Resistance R0.002 50 Ω
Power Rating
@ 70 °C without additional heat sink
@ 70 °C with adequate heat sink* 10
1.50
15
W
Tolerance
0.002 Ω< R < 0.01 Ω
0.01 Ω< R < 0.10 Ω
0.10 Ω< R < 50.0 Ω
2.0**
1.0***
0.5***
5.0
5.0
5.0
%
TCR
-20 °C < T < 60 °C
-40 °C < T < +130 °C
±15.0
±50.0
PPM/°C
Thermal Resistance – Rthj (Max @ R < 50 Ω)4.8 °C/W
Stability 0.1 0.5 %
Thermal EMF 1.0 µV/°C
Dielectric Withstanding Voltage 300 VDC
Operating Temperature TJ-40 +130 °C
Material Specifications
Resistor..........................Metal Foil (CuNiMn)
Substrate...........................Alumina (AL203)
Housing.....................................Epoxy/PPS
Lead Frame ............Tinned Copper (Sn/Cu)
Maximum Torque.............................1.0 Nm
Packaging
Tubes....................................50 pcs./tube
Tape & Reel** .......................500 pcs./reel
**Tape & Reel is only available for Version A.
*RoHS Directive 2002/95/EC Jan 27 2003, including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
*RoHS COMPLIANT
* Thermal junction 130 °C max.
** 1 % also available with 4-pin version.
*** 0.1 % and 0.24 % also available with 4-pin version.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Product Dimensions
PWR220/PWR221 S Series Shunt Resistor
10.16
(0.4)
TO220 Housing: 2-Pin TO220 Housing: 4-Pin
TO221 Casing: 2-Pin TO221 Casing: 4-Pin
10.16
(0.4)
3.7
(0.15)
3.2
(0.13)
3.7
(0.15)
4.0
(0.16)
4.0
(0.16)
18.3
(0.72)
28.3
(1.11)
6.0
(0.24)
17.3
(0.68)
27.3
(1.07)
14.4
(0.57)
14.4
(0.57)
16.4
(0.65)
16.4
(0.65)
1.3
(0.05)
1.3
(0.05)
1.03
(0.04)
0.76
(0.03)
1.3
(0.05)
2.54
(0.1)
3X
1.03
(0.04)
0.76
(0.03)
1.3
(0.05)
2.54
(0.1)
3X
1.2
(0.05)
1.2
(0.05)
1.85
(0.07)
1.85
(0.07)
0.4
(0.015)
0.4
(0.015)
0.76
(0.03)
0.76
(0.03)
5.08
(0.2)
MEASURING
POINT
MEASURING
POINT 5.08
(0.2)
10.16
(0.4)
3.2
(0.13)
3.7
(0.15)
4.0
(0.16)
18.3
(0.72)
28.3
(1.11)
14.4
(0.57)
16.4
(0.65)
1.2
(0.05)
1.85
(0.07)
0.4
(0.015)
10.16
(0.4)
3.7
(0.15)
4.0
(0.16)
6.0
(0.24)
17.3
(0.68)
27.3
(1.07)
14.4
(0.57)
16.4
(0.65)
1.2
(0.05)
1.85
(0.07)
0.4
(0.015)
MILLIMETERS
(INCHES)
DIMENSIONS =
Product Dimensions
TO220 Casing: 2-Pin (Surface Mount) TO220 Casing: 4-Pin (Surface Mount)
10.16
(0.4)
14.6
(0.57)
15.0
(0.59)
17.33
(0.68)
12.7
(0.50)
0.76
(0.03)
1.85
(0.07)
2.54
(0.1)
3X
0.76
(0.03)
1.4
(0.06)
10.16
(0.4)
14.6
(0.57)
15.0
(0.59)
17.33
(0.68)
12.7
(0.50)
1.4
(0.06)
4.0
(0.16)
1.2
(0.05)
4.0
(0.16)
1.2
(0.05)
MILLIMETERS
(INCHES)
DIMENSIONS =
PWR220/PWR221 S Series Shunt Resistor
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
How to Order
PWR 220 - 2 S A R040 J E
Model
PWR = Power Resistor
Package
220 = TO220
221 = TO221
Number of Pins
2 = 2 4 = 4
Function
S = Shunt
Version
A = Surface Mount
B = Through Hole
Resistor Value for all Tolerances
“R” represents decimal point
(examples: R040 = .040 ohms; 50R0 = 50.0 ohms
Absolute Tolerance
J = 5 % G = 2 % F = 1 %
D = 0.5 % *C = 0.25 % *B = 0.1 %
Packaging
E = Tape & Reel (Available only for Version A)
___ = Tubes
*Available only with 4-pin versions.
Typical Part Marking
PWR220-2S
R500 1%
0512
MANUFACTURER'S
TRADEMARK
PART
IDENTIFICATION
ABSOLUTE
RESISTANCE,
TOLERANCE
DATE CODE:
YYWW
PWR220/PWR221 S Series Shunt Resistor
Devices are packed in accordance with EIA standard
RS-481-A and specifications shown here.
MM
(INCHES)
DIMENSIONS:
Packaging Dimensions
.......
.......
....... ..............
....... ..............
P A
120
D
C
Index Hole
W
B
10 pitches (min.)
Direction of Feed
10 pitches (min.)
End
Trailer Device Leader
Start
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
REV. 05/08
Asia-Pacific:
Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555 • Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
Item Symbol Dimensions
Carrier Width A 10.4
(0.409)
Carrier Length B 18.4
(0.724)
Carrier Depth C 4.4
(0.173)
Reel Outside Diameter D 330
(12.992)
Punch Hole Pitch P 16.00
(0.630)
Tape Width W 32
(1.260)
Quantity per Reel — 500
