SERIES
FCA-125
Tyco Electronics Mid-Range Military/Aerospace Relays
25 AMPERES, SPDT
q
HERMETICALLY SEALED
q
ALL WELDED CONSTRUCTION
q
BALANCED FORCE
q
PERMANENT MAGNET DRIVE
q
CONTACTS: SILVER CADMIUM
OXIDE WITH GOLD PLATING
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COILS FOR DC, 50 TO 400Hz AND 400Hz AC
q
WEIGHT 1.6 OUNCES MAX. (45.4 GRAMS)
QP
i
L
ed to MIL-R-
l fi
Qua
D
ROV
0
E
/19*
APP
61 6
* 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
TYPE OF
LOAD
Resistive
Inductive
Inductive
Motor
Lamp
LIFE (MIN.)
CYCLES X 10
3
50
10
20
50
50
28 VDC
25
12
–
10
5
115VAC
400Hz
25
–
15
10
5
115VAC
60Hz *
10
10
–
8
–
* 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
4
SERIES
FCA-125
Tyco Electronics Mid-Range Military/Aerospace Relays
25 AMPERES, SPDT
COIL DATA
COIL
CODE
1
2
3
4 (A)
5
6
7
8
9
NOMINAL
VOLTAGES
6
12
28
28
48
28
28
115
115
FREQ.
Hz
DC
DC
DC
DC
DC
400Hz
50/400Hz
400 Hz
50/400Hz
OVER TEMPERATURE RANGE
DC RES.
DROPOUT OR MUST HOLD
PICKUP OR
AC AMPS (B) BELOW VOLTS ABOVE VOLTS VOLTAGE (C)
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
0.3
0.75
1.5
1.5
2.5
1.25
1.25
5.0
5.0
2.5
4.5
7.0
7.0
14.0
10.0
10.0
40.0
40.0
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 25˚C;
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:
ALTITUDE:
SHOCK:*
VIBRATION, SINUSOIDAL:*
VIBRATION, RANDOM: *
DIELECTRIC STRENGTH
AT SEA LEVEL:
DIELECTRIC STRENGTH
AT 80,000 FEET:
INSULATION RESISTANCE:
-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 g
2
/Hz 50-2000Hz
0.2 g
2
/Hz 50-2000Hz
1250 V rms
1000 V rms
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
350 V rms
100 M
Ω
MINIMUM
INITIAL (500 VDC)
AFTER LIFE OR ENVIRONMENTAL TESTS 50 M
Ω
MINIMUM
OPERATE TIME AT NOMINAL VOLTAGE: DC RELAYS
10 ms OR LESS
15 ms OR LESS
AC RELAYS
RELEASE TIME AT NOMINAL VOLTAGE: DC RELAYS
10 ms OR LESS
50 ms OR LESS
AC RELAYS
* Max. contact opening under vibration or shock 10 microseconds
5
SERIES
FCA-125
Tyco Electronics Mid-Range Military/Aerospace Relays
25 AMPERES, SPDT
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).
6
SERIES
FCA-125
Tyco Electronics Mid-Range Military/Aerospace Relays
25 AMPERES, SPDT
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
7
Embedded System
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