Rev Date: 12/21/2016
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This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
General Purpose and Precision Wirewound Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Performance Characteristics
Mechanical Specifications
Test Test Condition Test Specification
Moisture Resistance 1000 hours, 95% R.H., 40ºC 1% max
1000 hours,
cycled power 1.5 hours ON, 0.5 hours OFF, 25ºC
Temperature Cycling 5 cycles, -55ºC to 200ºC 0.5%
Short Time Overload 5 times rated power for 5 seconds 1%
Dielectric Withstand Voltage
Resistor leads are grounded and high potential probe is
touched to the resistor body
500V for (N)WW12, 1, 1A and 2S.
1000V for all others
Operating Temperature Range: -55ºC to +350ºC
Electrical Specifications – Non-Inductive Styles (cont.)
NWW10
RW-78 10
W 11 W
NWWS10 -
10
W
11
W
NMWW1 RW-70
1 W 1.3 W
NMWW3 RW-79 3
W 3.2
W
NMWW5
RW-67, RW-74 5 W 5.5 W
NMWW10 RW-68, RW-74 10
W 11
W
(*) Other resistance values available - contact factory for details.
Ohmic Range (Ω) and Tolerance (*)
< 1Ω = ±90ppm/ºC
1Ω to 10Ω = ± 50ppm/ºC
>10Ω = ±20ppm/ºC
0.312 ± 0.062 0.110 ± 0.031 0.025 ± 0.002 1.500 typ. inches
7.92 ± 1.57 2.79 ± 0.79 0.64 ± 0.05 38.10 typ. mm
0.375 ± 0.062 0.110 ± 0.031 0.025 ± 0.002 1.500 typ. inches
9.53 ± 1.57 2.79 ± 0.79 0.64 ± 0.05 38.10 typ. mm
0.420 ± 0.062 0.110 ± 0.031 0.025 ± 0.002 1.500 typ. inches
10.67 ± 1.57 2.79 ± 0.79 0.64 ± 0.05 38.10 typ. mm
0.370 ± 0.062 0.156 ± 0.031 0.032 ± 0.002 1.500 typ. inches
9.40 ± 1.57 3.96 ± 0.79 0.81 ± 0.05 38.10 typ. mm
0.550 ± 0.062 0.156 ± 0.031 0.032 ± 0.002 1.500 typ. inches
13.97 ± 1.57 3.96 ± 0.79 0.81 ± 0.05 38.10 typ. mm
0.560 ± 0.062 0.187 ± 0.031 0.032 ± 0.002 1.500 typ. inches
14.22 ± 1.57 4.75 ± 0.79 0.81 ± 0.05 38.10 typ. mm
0.500 ± 0.062 0.218 ± 0.031 0.032 ± 0.002 1.500 typ. inches
12.70 ± 1.57 5.54 ± 0.79 0.81 ± 0.05 38.10 typ. mm
0.700 ± 0.062 0.270 ± 0.031 0.036 ± 0.002 1.500 typ. inches
17.78 ± 1.57 6.86 ± 0.79 0.91 ± 0.05 38.10 typ. mm
0.875 ± 0.062 0.312 ± 0.031 0.036 ± 0.002 1.500 typ. inches
22.23 ± 1.57 7.92 ± 0.79 0.91 ± 0.05 38.10 typ. mm
1.000 ± 0.062 0.312 ± 0.031 0.036 ± 0.002 1.500 typ. inches
25.40 ± 1.57 7.92 ± 0.79 0.91 ± 0.05 38.10 typ. mm
(1) See "Resistor Packaging Specification Document" for lead length dimension for tape and reel packaged product.