SERIES
FCA-325
Tyco Electronics Mid-Range Military/Aerospace Relays
25 AMPERES, 3PDT
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 2.89 OUNCES MAX. ( 82 GRAMS)
The Series FCA-325 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-125:
25 AMP SPDT RELAY
FCAC-325:
25 AMP 3PST RELAY WITH 2 AMP SPDT AUXILIARY CONTACTS
QP
a
L
fied to MIL-R
li
Qu
ED
RO
-
V
3536
8
APP
CONTACT RATING-AMPERES
Ratings Are Continuous Duty
TYPE OF
LOAD
Resistive
Inductive
Inductive
Motor
Lamp
LIFE (MIN.)
CYCLES X 10
3
28 VDC
115VAC
400HZ
115/200VAC 115/200VAC
400Hz-30
60Hz-30 *
2.5
2.5
-
2.0
1.0
25
25
25
50
-
12
-
10
15
-
15
20
10
10
10
50
5
5
5
50
* 60 Hz LOADS RATED FOR 10,000 OPERATIONS
OVERLOAD CURRENT 50 AMPS DC, 80 AMPS 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
16
SERIES
FCA-325
Tyco Electronics Mid-Range Military/Aerospace Relays
25 AMPERES, 3PDT
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)
18
Ω
70
Ω
290
Ω
290
Ω
865
Ω
225 mA
120 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. OVER-VOLTAGE: 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, & V ENCLOSURES
W, X & M ENCLOSURES
Z, Y, & V ENCLOSURES
W, X & M ENCLOSURES
Z, Y, & V ENCLOSURES
W, X & M ENCLOSURES
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
15 ms OR LESS
20 ms OR LESS
AC RELAYS
RELEASE TIME AT NOMINAL VOLTAGE: DC RELAYS
15 ms OR LESS
AC RELAYS
50 ms OR LESS
* Max. contact opening under vibration or shock 10 microseconds
17
SERIES
FCA-325
Tyco Electronics Mid-Range Military/Aerospace Relays
25 AMPERES, 3PDT
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).
TERMINALS
CODE
"A"
Socket Pins - All DC Coils
.250
(6.35)
PIN TERMINALS ARE GOLD PLATED
.050
±
.005
(1.27
±
(.12)
Silicone
Rubber
Gasket
CODE
"B"
Solder Pin Terminals
.250
(6.35)
CODE
"C"
Solder Hook Terminals
HOOK TERMINALS TIN/LEAD PLATED
PIN TERMINALS TIN/LEAD PLATED
.375
±
.020
(9.52
±
.508)
.625
±
.020
(15.88
±
.51)
.040
±
.002Dia. Pin
(1.02
±
.05) 2 Plcs
.270
(6.86)
-X2
.062
±
.001Dia. Pin
(1.57
±
.02) 2 Plcs
.270
(6.86)
-X2
.062
±
.001Dia. Pin
(1.57
±
.02) 2 Plcs
.300
±
.020
(7.62
±
.51)
-X2
+X1
+.002
.093 - .000Dia. Pin
+.05
(2.36 - .00 ) 9 Plcs
BLUE BEAD
+X1
+.002
.093 - .000Dia. Pin
(2.36 +.05 ) 9 Plcs
- .00
BLUE BEAD
+X1
CODE
"V"
.150 typ.
(3.8)
ENCLOSURES
All Enclosures have cupro-Nickel
cans bright acid tin/lead plated after
assembly to terminal headers.
Dimensions: Inches
±
.010 (mm
±
.25)
For socket pin terminals: specify
"Y" enclosures with DC coils and
"V" enclosures with AC coils.
CODE
"X"
BLUE BEAD
.093
±
.003 Dia.Pin
(2.36
±.08)
9 Plcs
CODE
"Z"
"A"
MAX.
1.015
(25.79)
.625 .937
15.88 23.80
1.015
(25.79)
1.396
(35.46)
1.446
(36.73)
1.015
(25.79)
FULL R
6 PLCS
1.015
(25.79)
1.00
(25.4)
.040
(1.02)
.156
(3.96)
.150 typ.
(3.8)
CODE
"W"
.312
(7.92)
6-32 UNC-2A
3 Studs *
.375
(9.52)
1.718 Max.
(43.64)
CODE
"Y"
1.015
(25.79)
1.00
(25.4)
.150 typ.
(3.8)
1.015
(25.79)
1.396
(35.46)
1.446
(36.73)
.625 .937
15.88 23.80
1.00
(25.4)
.047
(1.20)
.625 .937
15.88 23.80
1.015
(25.79)
1.396
(35.46)
1.446
(36.73)
.312
7.92
FULL R
6 PLCS
1.015
(25.78)
FULL R
6 PLCS
1.015
(25.79)
.040
(1.02)
1.015
(25.79)
.687
(17.44)
.343
(8.71)
.160
(4.06)
.687
(17.44)
.160
(4.06)
1.718 Max.
(43.64)
1.00
(25.4)
.040
(1.02)
.156
(3.96)
1.718 Max.
(43.64)
*Metric threads available,To specify use M in place of W
18
SERIES
FCA-325
Tyco Electronics Mid-Range Military/Aerospace Relays
25 AMPERES, 3PDT
TERMINAL WIRING
DC COILS
DC COILS WITH
TRANSIENT SUPPRESSION
AC COILS
1
X2 -
2
3
C
B
1
X2 -
2
3
C
B
1
X2
2
3
C
B
A
+
X1
BLUE BEAD
+
X1
BLUE BEAD
AC
X1
BLUE BEAD
+
A
+
A
NOTE:
Polarity must be observed with DC coil supply.
Relay is polarized with a permanent magnet and will not
operate or be damaged by reverse polarity.
Diodes used in transient suppression and in AC rectifier
circuits have peak inverse voltage rating of 600 VDC
minimum. Zener diodes have a minimum rating of 1 watt.
Terminal designations are for reference only and do not
appear on the header.
TERMINAL LAYOUT
.150
(3.81)
.630
(16.00)
-X2
.450
(11.43)
.300
(7.62)
.600
(15.24)
+X1
.432
(10.97)
BLUE BEAD
.234
(5.94)
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-325-A Y 4
19
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