NT
Features
n
Surface mount wirewound resistor
n
High power
n
Low temperature coefficient
n
RoHS compliant*
n
Non-inductive versions available
LE
AD
F
RE
E
Applications
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Power supplies
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Motor drives
n
Electricity metering
*R
oH
S
C
OM
PL
IA
General Information
PWR2615/PWR4525 Surface Mount Wirewound Power Resistors
The PWR2615/PWR4525 Series are surface mount wirewound resistors offering 1 and 2 W power ratings as well as a wide
resistance and operating temperature range.
Electrical Characteristics
Parameter
Resistance Range
1 % Based on E24+E96 Series
5 % Based on E24 Series
Resistance Range
(Non-Inductive Versions)
Based on E24 Series
Power Rating @ 70 °C
Maximum Working Voltage
Absolute Tolerance Values
Temperature Coefficient (TCR)
R>10 ohms
1 ohm≤R≤10 ohms
0.1 ohm ≤R<1 ohm
R<0.1 ohm
Operating Temperature
Insulation Resistance
Dielectric Strength
Ro VE LEA
HS RS D
C ION FRE
OM S E
PL AR
IA E
NT
*
PWR2615
0.01 to 5K ohms
0.005 to 2K ohms
1W
58 V
0.5 % / 1 % / 5 %
±20 PPM/°C
±50 PPM/°C
±90 PPM/°C
±150 PPM/°C
-55 to +275 °C
>1000 megohms
1000 VAC
PWR4525
0.01 to 15K ohms
0.005 to 6K ohms
2W
173 V
(For resistances >2K ohms,
please consult factory for availability)
Environmental Characteristics
Tests per
MIL-STD-202
Short Time Overload
Load Life
Moisture Resistance
Thermal Shock
Resistance to Solder
Heat
Shock
Vibration
ΔR
Max.
0.5 % ±0.05
Ω
1.0 % ±0.05
Ω
1.0 % ±0.05
Ω
0.5 % ±0.05
Ω
0.25 % ±0.05
Ω
0.5 % ±0.05
Ω
0.5 % ±0.05
Ω
Physical Characteristics
Flammability ........Conforms to UL94V-0
Lead Frame Material
...............................Copper, tin-plated
Body Material ...................... Epoxy resin
Characteristic Curve
120
100
Power (%)
80
60
40
20
0
0
50
100 150
200
250
300
350
Ambient Temperature (ϒ
C)
Moisture Sensitivity Level .....................1
ESD Classification (HBM) .................N/A
WARNING Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
*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.
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.
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