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Features
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D PAK housing
2
Applications
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Power supplies
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Motor drives
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Test and measurement
n
Rectifiers
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32
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Low inductance
22
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Resistor electrically isolated from the backplate
CA
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16
RI
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High power rating
n
Compatible with lead free solder reflow temperatures
n
AEC-Q200 qualified
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RoHS compliant*
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General Information
PWR263S-20 Series Power Resistor
Bourns
®
PWR263S-20 Series is a TO263 DPAK style power resistor manufactured using thick film on alumina ceramic technology,
and used in current measurement, snubber, bleeder and discharge circuits.
Electrical & Thermal Characteristics
Parameter
Resistance
(See Popular Resistance Values table)
Power Rating @ 25 ˚C Case Temperature
Tolerance
TCR
0.02
Ω<R<130.0K Ω
Thermal Resistance - Rthj
Inductance
Operating Voltage
Dielectric Strength
Insulation Resistance
Operating Temperature
Value(s)
0.02
Ω
to 130 KΩ
20 W
±1 %**,
±5 %
Material Characteristics
Resistor
...................................Thick film
Substrate ..................... Alumina (AL203)
Housing ........................................Epoxy
Pins....................Tinned
Copper (Sn/Cu)
Flammability ........ Conforms to UL-94V0
Popular Resistance Values
Code
±100 PPM/˚C
6.5 ˚C/W
0.1 µH maximum
√P*R
with a maximum of 250 V
2 KV AC
10 GΩ
-55 ˚C to 155 ˚C
** Available for most values. Check Popular Resistance Values table.
Reliability Characteristics
Parameter
Short Term Overload (2x Pr for R < 2
Ω,
1.6 x Pr for R
≥
2
Ω,
V < 1.5 x Operating Voltage)
Load Life (1000 hours at rated power)
Thermal Shock (-55 ˚C to 155 ˚C, 5 cycles)
Resistance to Soldering Heat (10 seconds at
270 ˚C)
Vibration (20 G 10-2000 Hz .06 ” D.A.)
Moisture Sensitivity Level
Specification
ΔR
ΔR
ΔR
±0.25 %
±1.0 %
±0.5 %
ΔR
±0.5 %
ΔR
±0.25 %
1
Power Derating Curve
120
100
75
50
25
0
0
20
40
60
80
100
120
140
155
Case Temperature (°C)
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device
performance may vary over time.
Users should verify actual device performance in their specific applications.
R020
R025
R030
R033
R040
R050
R075
R100
R150
R200
R250
R300
R330
R400
R500
R750
1R00
1R50
2R00
2R50
3R00
3R30
4R00
5R00
7R50
8R00
10R0
12R0
15R0
20R0
25R0
27R0
30R0
33R0
40R0
47R0
50R0
56R0
75R0
Resistance
Value
Code
0.02 Ω***
0.025 Ω***
0.03 Ω***
0.033 Ω***
0.04 Ω***
0.05 Ω***
0.075 Ω***
0.1 Ω
0.15 Ω
0.2 Ω
0.25 Ω
0.3 Ω
0.33 Ω
0.4 Ω
0.5 Ω
0.75 Ω
1Ω
1.5 Ω
2Ω
2.5 Ω
3Ω
3.3 Ω
4Ω
5Ω
7.5 Ω
8Ω
10 Ω
12 Ω
15 Ω
20 Ω
25 Ω
27 Ω
30 Ω
33 Ω
40 Ω
47 Ω
50 Ω
56 Ω
75 Ω
1000
1200
1500
2000
2500
3000
3300
4000
4700
5000
5600
7500
1001
1501
2001
2501
3001
3301
4001
5001
7501
1002
1502
2002
2502
3002
3302
4002
4702
5002
5602
6802
7502
8202
1003
1153
1203
1253
1303
Resistance
Value
100 Ω
120 Ω
150 Ω
200 Ω
250 Ω
300 Ω
330 Ω
400 Ω
470 Ω
500 Ω
560 Ω
750 Ω
1.0 KΩ
1.5 KΩ
2.0 KΩ
2.5 KΩ
3.0 KΩ
3.3 KΩ
4.0 KΩ
5.0 KΩ
7.5 KΩ
10 KΩ
15 KΩ
20 KΩ
25 KΩ
30 KΩ
33 KΩ
40 KΩ
47 KΩ
50 KΩ
56 KΩ
68 KΩ
75 KΩ
82 KΩ
100 KΩ
115 KΩ
120 KΩ
125 KΩ
130 KΩ
Rated Power (%)
*** 5 % Tolerance
PWR263S-20 Series Power Resistor
Product Dimensions
10.1
Recommended Pad Layout
1.6
(0.063)
1.6
(0.063)
10.4
(0.409)
10.4 REF.
(0.409)
8.8
REF.
(0.347)
8.8
(0.347)
4.5
(0.177)
4.5
(0.177)
1.3
(.051)
15.39
(0.606)
15.39
(0.606)
4.02
(0.158)
10.52
(0.414)
2.25
(0.089)
4.23
(0.166)
4.23
(0.166)
8.0
2.4
(.315)
(0.095)
0.26
(0.10)
2.4
(0.095)
1.3
(.051)
11.0
(.433)
4.02
(0.158)
10.52
(0.414)
2.25
(0.089)
0.26
(0.10)
11.0
(.433)
(0.398)
10.1 7.8
(0.307)
(0.398)
7.8
(0.307)
48 °
48 °
5.08
(0.20)
5.08
(0.20)
1
BACKPLANE
ELECTRICALLY
ISOLATED
2
1.4
(0.055)
1.4
(0.055)
1.92
(0.076)
1.92
(0.076)
0.25 ± 0.13
(0.010 ± 0.005)
0.25
(0.010)
3.1
(0.122)
3.1
(0.122)
8.0
(.315)
MM
DIMENSIONS:
(INCHES)
±0.38
TOLERANCE:
UNLESS OTHERWISE NOTED
(±0.015)
LEAD
0.102 MAX AT MOUNTING
COPLANARITY: (0.004) SURFACE
Typical Part Marking
RESISTANCE
CODE
MANUFACTURER'S
TRADEMARK
MODEL
NUMBER
TOLERANCE
DATE CODE
COUNTRY
OF ORIGIN
Soldering Profile
275
<1>
Maximum of 20 seconds between
+245 °C and +260 °C
XXXX X%
Y YW W
C OS TA RIC A
26 3 2 0
260 °C peak
<1>
245 °C
225
220 °C
Temperature (°C)
190 °C
175
150 °C
60 - 90
seconds
Ramp Down
6 °C/second
60 - 120 seconds
10 seconds minimum
75
Ramp Up
3 °C/second maximum
25
How to Order
PWR 263 S - 20 - 10R0 F E
Model
PWR = Power
Resistor
Package
263 = D
2
PAK
125
Pin Style
S = Surface Mount
Power
20 = 20 W
0
50
100
150
Time (seconds)
200
250
300
Power dissipation is 2.8 W at an ambient temperature of 25 ˚C when mounted on a
double-sided copper board using FR4 standard, 70 µm of copper, 39 x 30 x 1.6 mm.
Absolute Tolerance
J=5%
F=1%
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device
performance may vary over time.
Users should verify actual device performance in their specific applications.
Resistance Value
<100 ohms ... “R” represents decimal
point (examples: 7R50 =
7.5
Ω;
R500 = 0.5
Ω)
≥100
ohms.... First three digits are
significant, fourth digit
represents number of
zeros to follow (exam-
ples: 2000 = 200 ohms;
3002 = 30K ohms)
Packaging
E = Tape & Reel
Blank = Tubes
PWR263S-20 Series Power Resistor
Pulse Power Rating
100
Energy in Joules
10
1
0.1
0.01
10 -7
10 -6
10 -5
10 - 4
10 -3
10 - 2
10 - 1
Overload Duration in Seconds
The energy absorbed by the resistor expressed in Joules can be calculated by multiplying the peak power of the pulse in watts times
the length of the pulse in seconds.
The energy should not exceed the limits shown in the graph. The overload voltage should not exceed 1.5 times the maximum
operating voltage.
Packaging Specifications
5.3
(0.209)
0.38 ± 0.20
(0.015 ± 0.008)
24.0
(0.945)
MM
DIMENSIONS:
(INCHES)
±0.38
TOLERANCE:
UNLESS OTHERWISE NOTED
(±0.015)
0.5 ± 0.18
(0.020 ± 0.007)
Asia-Pacific:
Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA:
Tel: +36 88 520 390 • Email: eurocus@bourns.com
The Americas:
Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
REV. 07/16
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
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