MIL-PRF-49465C
TABLE I. Characteristics.
Symbol
Test or condition
Units
T
ppm/OC
Resistance temperature characteristic (3.12)
(see 3.1)
Maximum ambient temperature at rated wattage
25
(see figure 1)
O
C
Maximum ambient temperature at zero power
275
(see figure 1)
.2
Thermal shock (3.11)
.5
Short time overload (3.14)
.1
Terminal strength (3.18)
.1
Maximum
Dielectric withstanding voltage (3.15)
1,000 MΩ
Insulation resistance (3.16)
percent
change in
High temperature exposure (3.22)
2
Moisture resistance (3.17)
resistance
.2
1/
Low temperature storage (3.13)
.2
Shock, specified pulse (3.19)
.1
Vibration, high frequency (3.20)
.1
Life (3.21)
2.0
± percent
Tolerance
1, 3, 5
1/
0.0005 ohm additional allowed for measurement error.
1.2.1.3 Resistance tolerance. The resistance tolerance, when applicable, is identified by a single letter in
accordance with table IV.
25
120
100
80
60
40
20
0
-60
-40
-20
0
20
40
60
80
100
120
140
160
180
200
240
260
280
O
275
AMBIENT TEMPERATURE IN C (SEE 6.3)
FIGURE 1. Derating curve for ambient temperatures.
2
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