MIL-PRF-27/241B
REQUIREMENTS: (When numbers in parentheses, i.e., (1-2) are used, they indicate the winding and
terminals of the windings.)
Electrical ratings: See table I.
TABLE I. Electrical characteristics. 1/
2/
3/
DC
Dash
Inductance
DC current
Resistance
Quality
Temperature
Working
Voltage
number
mH (1-2)
mA (1-2)
ohms (max)
factor
Stability
voltage
(1-2)
±2%
max
(1-2)
(min)
(-55°C to +105°C)
(peak)
volts
70 at
0.1 volt
01
0.6
90
1.9
100 kHz
±1%
175
at 1 kHz
70 at
0.1 volt
02
1.5
57
4.9
100 kHz
±1%
175
at 1 kHz
70 at
0.1 volt
03
2.5
44
8.2
100 kHz
±1%
175
at 1 kHz
70 at
0.1 volt
04
6.0
28
19.0
100 kHz
±1%
175
at 1 kHz
65 at
0.1 volt
05
10.0
22
32.0
50 kHz
±1%
175
at 1 kHz
60 at
0.1 volt
06
15.0
18
49.0
50 kHz
±1%
175
at 1 kHz
55 at
0.1 volt
07
25.0
14
82.0
50 kHz
±1%
175
at 1 kHz
48 at
0.1 volt
08
40.0
11
132.0
50 kHz
±1
175
at 1 kHz
1/ Qualification testing and approval to M27/241-08 shall be sufficient to grant qualification approval
to M27/241-01 through M27/241-07.
2/ The inductance is measured with 0 Adc applied to (1-2) and at the specified voltage across (1-2).
3/ The amount of DC current that will reduce the inductance a maximum of 7%.
Design and construction:
Dimensions and configuration: See figure 1.
Duty cycle: Continuous.
Case: Diallyl phthalate.
Terminals: 0.025 tin-lead plated type D4 in accordance with MIL-STD-1276.
Weight: 0.08 ounce, maximum.
Altitude: 75,000 feet, maximum.
Operating temperature range: -55C to +105C.
Terminal strength: MIL-STD-202, method 211, test condition A, 2 pounds.
Dielectric withstanding voltage
At sea level: 500 volts rms.
At reduced barometric pressure: 300 volts rms.
Vibration (high frequency): MIL-STD-202, method 204.
Marking location: See figure 1.
2
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