KOA SPEER ELECTRONICS, INC.
SS-239 R4
4. Standard Applications
Absolute
Maximum
Working
Voltage
Maximum
Overload
Power
Rating
@ 70°C
T.C.R.
(ppm/°C)
Max.
Resistance Range**
Operating
Temperature
Range
Part
Designation*
E-24, E-96 E-24, E-96
E-24
E-24
Voltage
(D 0.5%)
(F 1%)
(G 2%)
(J 5%)
(5 Secs. Max.)
200
300
500
—
—
—
0.51Ω - 10Ω***
0.51Ω - 10Ω
0.51Ω - 10Ω
0.2Ω - 0.47Ω
0.1Ω - 0.18Ω
1/8W (.125W)
1/6W (.166W2)
SR731E
(0402)
0.2Ω - 0.47Ω*** 0.2Ω - 0.47Ω
0.1Ω - 0.18Ω*** 0.1Ω - 0.18Ω
1.11V
1.41V
2.79V
3.53V
SR731J
(0603)
—
200
0.1Ω - 10Ω
0.1Ω - 10Ω
0.1Ω - 10Ω
1/5W (.2W)
100
200
500
800
100
200
500
800
100
200
500
1000
100
200
500
800
100
200
500
800
0.15Ω - 10Ω
0.1Ω - 10Ω
—
—
SR732A
(0805)
—
—
—
—
—
—
0.1Ω - 10Ω
0.1Ω - 10Ω
0.051Ω - 0.091Ω
0.030Ω - 0.047Ω
—
0.1Ω - 10Ω
0.056Ω - 0.091Ω
0.030Ω - 0.051Ω
—
0.047Ω - 10Ω
0.036Ω - 0.043Ω
0.024Ω - 0.033Ω
—
0.1Ω - 10Ω
0.056Ω - 0.091Ω
0.033Ω - 0.051Ω
—
1/4W (.25W)
1/3W (.33W2)
1.58V
1.81V
2.23V
2.73V
3.16V
3.95V
4.54V
5.59V
6.84V
7.90V
—
—
—
0.15Ω - 10Ω
0.1Ω - 10Ω
SR732B
(1206)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.1Ω - 10Ω
1/3W (.33W)
1/2W (.5W2)
-55°C
to
ꢁ150°C
—
—
—
0.1Ω - 10Ω
SR732E
(1210)
—
—
—
0.1Ω - 10Ω
1/2W (.5W)
2/3W (.66W2)
—
—
—
0.1Ω - 10Ω
SR732H
(2010)
—
—
—
0.1Ω - 10Ω
3/4W (.75W)
1W
—
—
—
0.1Ω - 10Ω
SR733A
(2512)
—
—
—
0.1Ω - 10Ω
0.1Ω - 10Ω
0.056Ω - 0.091Ω
0.039Ω - 0.051Ω
—
—
* Parenthesis indicate EIA package size codes.
** See Appendix D for available decade values.
*** 1E (F: 1ꢀ) E-24 values only.
1
Power Rating for SR731E 0.91Ω - 10Ω = 1/10 (0.1W)
2
Please contact factory for limitation of Surface Mount Temp. Rise
5. Rating
5-1Rating
For temperature in excess of 70°C,
the load shall be derated in accordance
with the following figure.
Derating Curve
Surface Temperature Rise
100
180
160
140
120
100
80
W3A (1W)
80
60
W2H (.75W)
2E (.66W)
2B (.5W)
1J, 2A, 2B,
2E, 2H, 3A
2A (.33W)
2E (.5W)
2B (.33W)
40
2A (.25W)
1E (.166W)
1J (.2W)
60
40
Measuring Point
1E (.125W)
20
0
1E
20
0
-60 -40 -20
0
20 40 60 80 100 120 140 160
0
25
50
75
100
-55
70
Ambient Temperature
(°C)
150155
% Rated Power
PAGE 2 OF 8
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Bolivar Drive
P.O. Box 547
Bradford, PA 16701
USA
814-362-5536
Fax 814-362-8883
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
KOA [ KOA SPEER ELECTRONICS, INC. ]
