MIL-PRF-27/72C
REQUIREMENTS: (When numbers in parentheses, i.e. (1.-3) are used, they indicate the winding and the extreme
terminals of the winding.)
Electrical ratings: See table I.
Working voltage: 175 volts.
Frequency range: 300 hertz to 100 kilohertz (except 300 hertz to 40 kilohertz for M27/72-01).
TABLE I. Electrical ratings. 1/
Primary
Secondary
Primary
Primary
Secondary
Primary
Dash
impedance
impedance
DCR
power level
DCR
unbalanced
number
ohms
ohms
ohms
at 300 Hz
ohms
dc current
± 25%
± 25%
max
(1-3)
(4-6)
mW
(max)
(mA)
01
100 k CT
1,000 CT
6,800
10
110
0.2
02
25 k CT
1,000 CT
4,300
50
140
1.2
03
25 k CT
600 CT
4,300
50
90
1.25
04
10 k CT
10 k CT
1,350
50
1,350
1.0
05
10 k CT
1,500 CT
1,350
50
170
1.0
06
10 k CT
600 CT
1,350
50
90
1.0
07
1,000 CT
600 CT
140
50
90
6.25
08
600 CT
600 CT
90
50
90
8.0
09
600 CT
60
90
50
10
8.0
1/ Qualification testing and approval to M27/72-01 and all tests in accordance with table VII of
MIL-PRF-27 for M27/72-02 shall be sufficient to grant qualification approval to M27/72-01 through
M27/72-09, inclusive. Qualification by similarity can be obtained for MIL-PRF-27/67, /68, /69, /70,
and /71 by the submission of two samples each, (of dash number 01 for MIL-PRF-27/67, /68, /69,
/70, and /71) which shall be subject to group A, subgroup II tests, with zero defects allowed.
Design and construction:
Dimensions and configuration: See figure 1.
Duty cycle: Continuous.
Case: Encapsulated.
Material: Plastic.
Terminals: Pin (printed circuit).
Material: Nickel, tin plated.
Diameter: .020 ± .005 inch.
Length: .500 ± .125 inch.
Weight: 3.97 grams maximum.
Altitude: 70,000 feet, maximum.
Operating temperature range: -55°C to +130°C.
3
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business