MIL-PRF-83726/21G
REQUIREMENTS:
OPERATING REQUIREMENTS:
Timing action: Delay-on-operate.
Time delay 1/: Adjustable (see table I) with external resistor according to the following formula:
R ext = 100 k( (T/ Tm) - 1)
where T = desired time, Tm = minimum time, and (T/ Tm) < 10.
Timing accuracy 2/: +10 percent of the nominal value.
Recycle time 3/: 10 milliseconds.
Power interrupt: The accuracy will not be affected by power interruptions up to 1 millisecond spaced
at least 10 milliseconds apart.
______________
1/ External resistor in accordance with MIL-PRF-55182, RNC60HXXXXFS or equal.
2/ The accuracy requirement applies for any combination of operating temperature and voltage.
3/ Recycle time is defined as the maximum time that power must be removed from the input terminals to
assure that the next timing cycle will be completed within the specified timing tolerance. (Units can be
recycled during timing or after time-out.)
TABLE I. Available time delays. 1/
Dash number
Time delay (seconds)
Printed circuit type
Flange
10%
terminals
mounting
0.05
0.5
-005
-001
0.5
5
-006
-002
5
50
-007
-003
50
500
-008
-004
1/ CAUTION: Relays supplied to this specification sheet are susceptible
to damage from electrostatic discharge under class I devices as
defined by MIL-STD-1686 (see ESDS requirements herein).
INPUT REQUIREMENTS:
Input voltage: 28 V dc nominal; range 18 V dc to 32 V dc.
Duty rating: Continuous.
Current drain: 5 milliamperes maximum plus load at 25C.
Polarity protection: The timer shall be inoperative during, and undamaged by, reversal of the
polarity of the operating voltage.
OUTPUT REQUIREMENTS:
Configuration: SPST; switch closure to +28 V dc.
Rating: 250 milliamperes maximum.
Suppression: Inductive suppression provided for output protection.
Voltage drop: 2 V dc maximum.
3
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business