PL
IA
NT
Features
■
TO220 or TO221 housing
■
Low inductance
■
SMD and through hole versions
■
High power rating
*R
oH
S
Models PWR220-2FB, PWR221-2FB,
and PWR220-2FA are not available
and not recommended for new
designs.
Models
PWR220T-35, PWR221T-30,
and
PWR263S-35
are suggested alternatives.
CO
M
PWR220/PWR221 F Series Power Resistors
Material Specifications
Resistor .................................. Thick film
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
Versions A and D.
Electrical & Thermal Characteristics
Parameter
Resistance
(Version A)
(Version C & D)
Power Rating @ 70 °C in Free Air
Power Rating with External Heat Sink
(Version A)
(Version C & D)
Tolerance
0.02
Ω
< R < 1.0
Ω
1.0
Ω
< R < 100K
Ω
TCR
0.1
Ω
< R < 100.0K
Ω
0.05
Ω
< R < 0.099
Ω
0.02
Ω
< R < 0.049
Ω
Thermal Resistance – Rthj
(Version A)
(Version C & D)
Stability
Dielectric Withstanding Voltage
Operating Temperature
TJ
-40
3.5
2.1
0.5
2
+155
2.0
1.0
Symbol
R
R
Min.
0.02
0.02
Nom.
Max.
100K
15K
1.50
30
50
5.0
5.0
±100
±300
±600
Unit
Ω
Ω
W
W
W
%
%
PPM/°C
PPM/°C
PPM/°C
°C/W
°C/W
%
kV DC
°C
General Information
The Bourns
®
PWR220 F Series is a TO220 style Power Resistor; PWR221 F is a TO221
style Power Resistor. Manufactured using thick film on Alumina ceramic technology, it
is used in applications such as power supplies, motor drives and measurements.
WARNING Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
Applications
■
Power supplies
■
Motor drives
■
Test and measurement
■
Welding
PWR220/PWR221 F Series Power Resistors
Product Dimensions
TO220 Housing: 2-Pin
10.16
(0.4)
3.7
(0.15)
1.2
(0.05)
TO220 Casing: 2-Pin (Surface Mount)
1.2
(0.05)
4.0
(0.16)
4.0
(0.16)
10.16
(0.4)
1.4
(0.06)
12.7
(0.50)
14.6 15.0 17.33
(0.57) (0.59) (0.68)
14.4
16.4
(0.57) (0.65)
6.0
17.3
(0.24) (0.68)
27.3
(1.07)
1.3
(0.05)
0.76
(0.03)
5.08
(0.2)
1.85
(0.07)
0.76
(0.03)
MEASURING
POINT
Recommended Pad Layout
11.16
(0.439)
0.4
(0.015)
TO221 Casing: 2-Pin
10.16
(0.4)
3.2
(0.13)
1.2
(0.05)
12.10
(0.476)
18.33
(0.722)
DIMENSIONS:
MM
(INCHES)
4.0
(0.16)
3.20
(0.126)
5.08
(0.200)
18.3 28.3
(0.72) (1.11)
1.76
(0.069)
3.7
(0.15)
14.4
16.4
(0.57) (0.65)
How to Order
PWR 220 - 2 F B R040 J E
1.3
(0.05)
MEASURING
POINT
0.76
(0.03)
5.08
(0.2)
1.85
(0.07)
0.4
(0.015)
Typical Part Marking
PART
IDENTIFICATION
MANUFACTURER'S
TRADEMARK
PWR220-2F
R500 1%
0512
ABSOLUTE
RESISTANCE,
TOLERANCE
DATE CODE:
YYWW
Model
PWR = Power Resistor
Package
220 = TO220
221 = TO221
Number of Pins
2=2
Function
F = Thick Film
Version
A = TO221 Housing, Surface Mount, 30 W (w/Heat Sink)
C = TO220 Housing/TO221 Housing, Through-Hole, 50 W
(w/Heat Sink)
D = TO220 Housing, Surface Mount, 50 W (w/Heat Sink)
Resistor Value for all Tolerances
<100 ohms ..... “R” represents decimal point
(examples: 7R50 = 7.5 ohms; R040 = 0.040 ohms)
≥100
ohms ..... First three digits are significant, fourth digit represents
number of zeros to follow
(examples: 2000 = 200 ohms; 2002 = 20K ohms)
Absolute Tolerance
J=5%
G=2%
F=1%
Packaging
E = Tape & Reel (Available only for Versions A and D)
___ = Tubes
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
PWR220/PWR221 F Series Power Resistors
Soldering Profile (Surface Mount Version Only)
Derating Curve
120
100
80
60
40
20
0
25
250
Peak 260 +5/-0 °C
230 °C or higher
180 °C
Pre-heating Zone
Temperature (°C)
200
150
100
150 °C
Power Ratio (%)
50
85
100
115
130
145
155
Temperature of Heat Sink (°C)
90 ± 30 seconds
30 ± 10 seconds
Soldering Zone
Heating Time
50
Packaging Dimensions
Index Hole
120
W
B
D
P
Trailer
A
Device
C
Leader
End
.......
.......
10 pitches (min.)
.......
.......
.......
.......
.......
.......
10 pitches (min.)
Start
DIMENSIONS:
MM
(INCHES)
Devices are packed in accordance with EIA standard
RS-481-A and specifications shown here.
Direction of Feed
Item
Carrier Width
Carrier Length
Carrier Depth
Reel Outside Diameter
Punch Hole Pitch
Tape Width
Quantity per Reel
Symbol
A
B
C
D
P
W
—
Dimensions
10.4
(0.409)
18.4
(0.724)
4.4
(0.173)
330
(12.992)
16.00
(0.630)
32
(1.260)
500
Asia-Pacific:
Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
Europe:
Tel: +36 88 885 877 • Email: eurocus@bourns.com
The Americas:
Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
REV. 09/19
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns
®
products manufactured by or on behalf of Bourns, Inc. and
Unless otherwise expressly indicated in writing, Bourns
®
products and data sheets relating thereto are subject to change
and complete before placing orders for Bourns
®
products.
The characteristics and parameters of a Bourns
®
product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns
®
®
product with other components
the actual performance of the Bourns
®
®
®
product as meeting the requirements of a particular industry
®
of Bourns products are responsible for ensuring compliance with safety-related requirements and standards applicable to
®
Bourns
®
on a case-by-case basis, use of any Bourns
®
®
®
®
®
Bourns
®
®
standard products that are suitable for use in aircraft
®
standard
the user’s sole risk.
®
and the user for which such Bourns
®
®
custom products shall be negotiated on a case-by-case basis by Bourns
®
also apply to such Bourns custom products.
Users shall not sell, transfer, export or re-export any Bourns
®
Bourns
®
standard products shall
products and Bourns technology and technical data may not under any circumstance be
exported or re-exported to countries subject to international sanctions or embargoes. Bourns
®
products may not, without
®
bilingual versions are available at:
Web Page:
http://www.bourns.com/legal/disclaimers-terms-and-policies
PDF:
http://www.bourns.com/docs/Legal/disclaimer.pdf
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