
CPSM
Vishay Dale
Wirewound Resistors, Commercial Power, Surface Mount
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
POWER RATING
P
FEATURES
• Direct mounting on printed circuit board
• High wattage capabilities, low board
temperatures
• Meets or exceeds EIA-RS-344 requirements
• Special inorganic potting compound and
ceramic case provide high thermal conductivity
in a fireproof package
• Superior surge capability
RESISTANCE RANGE
40 °C
W
± 5 %, ± 10 %
Pb-free
Available
e3
RoHS*
COMPLIANT
Ω
CPSM03 CPSM-3 3 0.1 - 1K
CPSM05 CPSM-5 5 0.1 - 1K
TECHNICAL SPECIFICATIONS
PARAMETER UNIT CPSM RESISTOR CHARACTERISTICS
Temperature Coefficient ppm/°C
Short Time Overload - 5 x rated power for 5 seconds
Operating Temperature °C - 65/+ 275
Dielectric Withstanding Voltage V
Maximum Working Voltage V (P x R)
Weight (typical) g CPSM03 = 5.5; CPSM05 = 6.5
AC
± 600 below 1.0 Ω,
± 300 1.0 Ω and above
1000
1/2
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: CPSM0315R00JE31 (preferred part numbering format)
CPSM
GLOBAL MODEL
CPSM03
CPSM05
0315
VALUE
R = decimal
K = thousand
R1500 = 0.15 Ω
100R0 = 100 Ω
1K000 = 1 kΩ
R0
TOLERANCE
H = ± 3.0 %
J = ± 5.0 %
K = ± 10 %
0J
E31 = Lead (Pb)-free, 4 layer bulk
E3
PACKAGING
B31 = Tin/Lead, 4 layer bulk
1
SPECIAL
(Dash Number)
(up to 3 digits)
From 1-999 as
applicable
Historical Part Number example: CPSM-3 15 Ω 5 % B3 1( will continue to be accepted)
CPSM-3
HISTORICAL MODEL R
* Pb containing terminations are not RoHS compliant, exemptions may apply
www.vishay.com For technical questions, contact: ww2aresistors@vishay.com
316 Revision: 27-Jun-07
15 Ω
ESIST
ANCE VALUE TOLERANCE PACKAGING
5 %
CODE
B31
Document Number: 30106

Wirewound Resistors, Commercial Power, Surface Mount
DIMENSIONS
L
0.080
[2.03]
Maximum
L
1
0.020 ± 0.005
[0.508 ± 0.127]
CPSM
Vishay Dale
DIMENSIONS in inches [millimeters]
W
W
MODEL
L
± 0.032
[0.813]
H
W
1
CPSM03
CPSM05
0.906
[23.01]
1.060
[26.92]
W
± 0.031
[0.787]
0.374
[9.50]
0.374
[9.50]
L
1
± 0.062
[1.57]
0.480
[12.19]
0.590
[14.99]
1
+ 0.032
[0.813]
- 0.012
[0.305]
0.287
[7.29]
0.287
[7.29]
H
± 0.031
[0.787]
0.374
[9.50]
0.374
[9.50]
SOLDER PAD DIMENSIONS in inches
[millimeters]
200
150
100
Te mperature Rise in °C
50
0
0 1.0 2.0 3.0 4.0 5.0
Temperature Rise
I
b
a
CPSM0 3
CPSM0 5
Power in W
MODEL
ab l
CPSM03
CPSM05
120
100
80
Rated Power in %
60
40
20
0
- 65 - 25 25 75 125 175 225 275
0.420
[10.67]
0.440
[11.18]
40
Derating
MATERIAL SPECIFICATIONS
Element Copper-nickel alloy or nickel-chrome alloy, depending on resistance value
Core Woven fiberglass
Body Steatite ceramic case with inorganic potting compound
Terminals Tin/lead plated steel (Lead (Pb)-free version will be 100 % tin)
Part Marking DALE, Model, Wattage, Value, Tolerance, Date Code
0.340
[8.64]
0.340
[8.64]
Ambient Te mperature in ° C
[12.45]
0.380
[9.65]
0.490
PERFORMANCE
TEST CONDITIONS OF TEST TEST LIMITS (EIA RS-344)
Thermal Shock - 55 °C to + 165 °C, 5 cycles, 30 minute dwell time ± (5.0 % + 0.05 Ω)
Short Time Overload 5 x rated power for 5 seconds ± (4.0 % + 0.05 Ω)
Dielectric Withstanding Voltage 1000 V
for one minute ± (2.0 % + 0.05 Ω) ΔR
rms
Low Temperature Operation - 65 °C, full rated working voltage for 45 minutes ± (3.0 % + 0.05 Ω)
Humidity 75 °C, 90 % - 100 % RH, 240 hours ± (5.0 % + 0.05 Ω)
Load Life 1000 hours at rated power, + 40 °C, 1.5 hours “ON”, 0.5 hours “OFF” ± (10.0 % + 0.05 Ω)
Resistance to Solder Heat + 260 °C solder, 10 - 12 second dwell, 25 mm/second emergence ± (4.0 % + 0.05 Ω)
Document Number: 30106 For technical questions, contact: ww2aresistors@vishay.com
Revision: 27-Jun-07 317
Δ
R
Δ
R
Δ
R
Δ
R
Δ
R
Δ
R
www.vishay.com

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Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1