4
TYPE OF
LOAD LIFE (MIN.)
CYCLES X 10328 VDC 115VAC
400Hz
Resistive
Inductive
Inductive
Motor
Lamp
25
12
–
10
5
25
–
15
10
5
* 60 Hz LOADS RATED FOR 10,000 OPERATIONS
Ratings Are Continuous Duty
CONTACT RATING-AMPERES
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
●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)
FCA-125
25 AMPERES, SPDT
SERIES
50
10
20
50
50
115VAC
60Hz *
10
10
–
8
–
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
Tyco Electronics Mid-Range Military/Aerospace Relays
* Meets new spec MIL-PRF-83536/36 and MIL-PRF-83536/37
QPL APPROVED
Qualified to MIL-R-6106/19*
5
COIL DATA
* Max. contact opening under vibration or shock 10 microseconds
NOMINAL
VOLTAGES FREQ.
Hz DC RES.
AC AMPS (B) PICKUP OR
BELOW VOLTS
OVER TEMPERATURE RANGE
1
2
3
4 (A)
5
6
7
8
9
COIL
CODE MUST HOLD
VOLTAGE (C)
DROPOUT OR
ABOVE VOLTS
6
12
28
28
48
28
28
115
115
DC
DC
DC
DC
DC
400Hz
50/400Hz
400 Hz
50/400Hz
20 Ω
80 Ω
320 Ω
320 Ω
920 Ω
180 mA
100 mA
40 mA
30 mA
4.5
9.0
18.0
18.0
32.0
22.0
22.0
90.0
95.0
2.5
4.5
7.0
7.0
14.0
10.0
10.0
40.0
40.0
0.3
0.75
1.5
1.5
2.5
1.25
1.25
5.0
5.0
A. CODE 4 COILS HAVE BACK EMF SUPPRESSION
TO 42 VOLTS MAX.
B. DC COIL RESISTANCE ± 10% AT 25˚C;
AC COIL MAX. CURRENT AT NOMINAL VOLTAGE.
C. RELAY WILL STAY IN PICKED-UP STATE DOWN TO
MUST HOLD VOLTAGES SHOWN.
D. MAX. OVERVOLTAGE: 6 & 12 VDC COILS 120% OF
NOMINAL; ALL OTHERS 110% OF NOMINAL.
E. COILS AVAILABLE FOR OTHER VOLTAGES AND
FOR AC 50/60HZ.
NOTE: Only DC Coil Models are QPL Approved.
-70˚C TO + 125˚C
300,000 FEET
200 g FOR 6 mS
100 g FOR 6 mS
30 g 33-3000Hz
20 g 33-3000Hz
0.4 g2/Hz 50-2000Hz
0.2 g2/Hz 50-2000Hz
1250 V rms
1000 V rms
350 V rms
100 MΩ MINIMUM
50 MΩ MINIMUM
10 ms OR LESS
15 ms OR LESS
10 ms OR LESS
50 ms OR LESS
Z, Y, & X ENCLOSURES
W & M ENCLOSURES (STUD MTG.)
Z, Y, & X ENCLOSURES
W & M ENCLOSURES (STUD MTG.)
Z, Y, & X ENCLOSURES
W & M ENCLOSURES (STUD MTG.)
ALL CIRCUITS TO GROUND AND
CIRCUIT TO CIRCUIT.
COIL TO GROUND
INITIAL (500 VDC)
AFTER LIFE OR ENVIRONMENTAL TESTS
DC RELAYS
AC RELAYS
DC RELAYS
AC RELAYS
GENERAL SPECIFICATIONS
TEMPERATURE RATING:
ALTITUDE:
SHOCK:*
VIBRATION, SINUSOIDAL:*
VIBRATION, RANDOM: *
DIELECTRIC STRENGTH
AT SEA LEVEL:
DIELECTRIC STRENGTH
AT 80,000 FEET:
INSULATION RESISTANCE:
OPERATE TIME AT NOMINAL VOLTAGE:
RELEASE TIME AT NOMINAL VOLTAGE:
FCA-125
25 AMPERES, SPDT
SERIES
Tyco Electronics Mid-Range Military/Aerospace Relays
6
Below are shown the standard terminal types and the enclosures available. Specify the assembly as
indicated under How To Order. Dimensions are shown in inches ± .010 and (Millimeters ± .25).
FCA-125
25 AMPERES, SPDT
SERIES
Tyco Electronics Mid-Range Military/Aerospace Relays
7
HOW TO ORDER
(EXAMPLE)
RELAY TYPE
TERMINALS (Socket Pins, DC Coil)
ENCLOSURE (With Flanges)
COIL (28 VDC With Transient Suppression).
NOTE: Only DC coil models are QPL Approved
FCA-125-A Y 4
FCA-125
25 AMPERES, SPDT
SERIES
Tyco Electronics Mid-Range Military/Aerospace Relays
