MIL-PRF-27/287B
REQUIREMENTS:
Electrical ratings: See table I.
TABLE I. Electrical ratings.
Voltage
Circuit
DC current
Working
PIN
DC
Inductance
Dash
Diagram
(A) max
voltage
arrangement
resistance
(µh)
(see figure
2/ 4/
(peak)
(see figure 1)
(ohms)
no.
+15 percent
1/
1)
volts
max
-5 percent
5/
2/ 3/
2/
1 volt
01
1250
1.2
.7
357
A
AA
at 10 kHz
1 volt
02
800
1.5
.45
357
A
AA
at 10 kHz
1 volt
03
500
1.8
.3
357
A
AA
at 10 kHz
1 volt
04
350
2.2
.2
357
A
AA
at 10 kHz
3
.12
200
1 volt
05
357
B
BB
50
6
.03
at 10 kHz
1 volt
88
4.5
.052
357
B
BB
06
at 10 kHz
22
9
.013
1 volt
7.5
.02
32
357
B
BB
07
at 10 kHz
8
15
.005
1/ Qualification test and approval to M27/287-01, shall be sufficient to grant qualification approval to
M27/287-02 through -07.
2/ Where electrical values are written one above the other they indicate the values from series or
(series)
.
parallel connections respectively
parallel
3/ The inductance is measured with 0 A dc applied at the specified voltage and frequency.
4/ At rated dc current, inductance will exceed 80 of rated inductance.
5/ Between windings, 50 volts peak.
Design and construction:
Dimensions and configuration: See figure 1.
Duty cycle: Continuous.
Case: Epoxy.
Terminals: Printed circuit (tinned brass).
Weight: 0.758 ounce (21.48 grams).
Altitude: 75,000 feet.
Operating temperature range: -55°C to +130°C.
Terminal strength: MIL-STD-202, method 211, test condition A, 2 pounds.
3
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