FCA-125
SERIES
Tyco Electronics Mid-Range Military/Aerospace Relays
25 AMPERES, SPDT
HERMETICALLY SEALED
ALL WELDED CONSTRUCTION
BALANCED FORCE
PERMANENT MAGNET DRIVE
CONTACTS: SILVER CADMIUM
OXIDE WITH GOLD PLATING
COILS FOR DC, 50 TO 400Hz AND 400Hz AC
WEIGHT 1.6 OUNCES MAX. (45.4 GRAMS)
* Meets new spec MIL-PRF-83536/36 and MIL-PRF-83536/37
The Series FCA-125 relay is a polarized single-side stable design, where the flux from a permanent
magnet provides the armature holding force in the deactivated state, and its flux path is switched
and combined with the coil flux in the operated state. This results in appreciably increased contact
pressure in both states over that of a spring return nonpolar design. We also manufacture other
versions of this relay:
FCA-325: 25 AMPERE 3PDT RELAY
FCAC-325: 25 AMPERE 3PST RELAY WITH 2 AMPERE, SPDT AUXILIARY CONTACTS
CONTACT RATING-AMPERES
Ratings Are Continuous Duty
115VAC
LIFE (MIN.) 115VAC
TYPE OF
28 VDC
3
400Hz
CYCLES X 10 60Hz *
LOAD
Resistive 25 25 10
50
Inductive 12 10
10
Inductive 15
20
Motor 10 10 8
50
Lamp 5 5
50
* 60 Hz LOADS RATED FOR 10,000 OPERATIONS
OVERLOAD CURRENT 50 AMPS DC, 80AMPS 400Hz
RUPTURE CURRENT 60 AMPS DC, 100 AMPS 400Hz
CONTACT MAKE BOUNCE 1 MILLISECOND AT NOMINAL VOLTAGE
MAX. CONTACT DROP AT 25 AMPS: INITIAL 0.150 VOLTS.
END OF LIFE 0.175 VOLTS
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QPL APPROVED
Qualified to MIL-R-6106/19*FCA-125
SERIES
Tyco Electronics Mid-Range Military/Aerospace Relays
25 AMPERES, SPDT
COIL DATA
OVER TEMPERATURE RANGE
DC RES. MUST HOLD
NOMINAL FREQ. PICKUP OR DROPOUT OR
COIL
AC AMPS (B) VOLTAGE (C)
VOLTAGES Hz BELOW VOLTS ABOVE VOLTS
CODE
0.3
6 4.5 2.5
1 DC 20
0.75
12 9.0 4.5
2 DC 80
1.5
28 18.0 7.0
3 DC 320
1.5
28 18.0 7.0
4 (A) DC 320
2.5
48 32.0 14.0
5 DC 920
1.25
28 22.0 10.0
6 400Hz 180 mA
1.25
28 22.0 10.0
7 50/400Hz 100 mA
5.0
115 90.0 40.0
8 400 Hz 40 mA
5.0
115 95.0 40.0
9 50/400Hz 30 mA
A. CODE 4 COILS HAVE BACK EMF SUPPRESSION
D. MAX. OVERVOLTAGE: 6 & 12 VDC COILS 120% OF
TO 42 VOLTS MAX.
NOMINAL; ALL OTHERS 110% OF NOMINAL.
B. DC COIL RESISTANCE 10% AT 25C;
E. COILS AVAILABLE FOR OTHER VOLTAGES AND
AC COIL MAX. CURRENT AT NOMINAL VOLTAGE.
FOR AC 50/60HZ.
C. RELAY WILL STAY IN PICKED-UP STATE DOWN TO
MUST HOLD VOLTAGES SHOWN.
NOTE: Only DC Coil Models are QPL Approved.
GENERAL SPECIFICATIONS
TEMPERATURE RATING:
-70C TO + 125C
ALTITUDE:
300,000 FEET
SHOCK:*
Z, Y, & X ENCLOSURES 200 g FOR 6 mS
W & M ENCLOSURES (STUD MTG.) 100 g FOR 6 mS
VIBRATION, SINUSOIDAL:*
Z, Y, & X ENCLOSURES 30 g 33-3000Hz
W & M ENCLOSURES (STUD MTG.) 20 g 33-3000Hz
2
VIBRATION, RANDOM: *
Z, Y, & X ENCLOSURES 0.4 g /Hz 50-2000Hz
2
W & M ENCLOSURES (STUD MTG.) 0.2 g /Hz 50-2000Hz
DIELECTRIC STRENGTH
ALL CIRCUITS TO GROUND AND
AT SEA LEVEL:
CIRCUIT TO CIRCUIT. 1250 V rms
COIL TO GROUND 1000 V rms
DIELECTRIC STRENGTH
AT 80,000 FEET:
350 V rms
INSULATION RESISTANCE:
INITIAL (500 VDC) 100 M MINIMUM
AFTER LIFE OR ENVIRONMENTAL TESTS 50 M MINIMUM
OPERATE TIME AT NOMINAL VOLTAGE:
DC RELAYS 10 ms OR LESS
AC RELAYS 15 ms OR LESS
RELEASE TIME AT NOMINAL VOLTAGE:
DC RELAYS 10 ms OR LESS
AC RELAYS 50 ms OR LESS
* Max. contact opening under vibration or shock 10 microseconds
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