MIL-PRF-23419/4H
Part or Identifying Number (PIN): The PIN is derived from table I and shall be as shown in table IV.
TABLE I. Style FM04 PIN designation, electrical parameters, and lead dimensions.
PIN designation
Lead diameter
Maximum
Current
Inches
mm
Maximum
Cold resistance
Characteristic
rating
(± 0.002)
(± 0.05)
voltage
(ohms)
(amperes)
A
125V
1/16A
9.100
.025
.64
A
125V
1/8A
2.700
.025
.64
A
125V
1/4A
.960
.025
.64
A
125V
3/8A
.560
.025
.64
A
125V
1/2A
.365
.025
.64
A
125V
3/4A
.215
.025
.64
A
125V
1A
.165
.025
.64
A
125V
1 1/2A
.105
.025
.64
A
125V
2A
.072
.025
.64
A
125V
3A
.047
.025
.64
A
125V
4A
.029
.025
.64
A
125V
5A
.019
.025
.64
A
125V
7A
.013
.025
.64
A
125V
10A
.008
.025
.64
A
32V
15A
.0053
.032
.82
Qualification and group C Inspection:
Inspection routine. The number of group II samples for qualification, and subgroup 2 samples for
group C inspection, shall be as shown in table II below:
Table II. Group II and subgroup 2 samples.
Inspection
Number of sample fuses
Group II and subgroup 2
16
Terminal strength
4
Overload interrupt
200% at -55° C
4
200% at +125° C
4
300% at -55° C
4
300% at +125° C
4
The number of group III samples for qualification, and subgroup 1 for group C inspection, shall
consist of four fuses of each of the styles shown in table III. Short circuit interrupt tests shall be
conducted at the direct current voltage indicated, and the fuses shall be capable of withstanding a
minimum short circuit current as shown in table III.
3
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