Automotive Plug-In / PCB Power Relay
FEATURES
Most popular automotive relay
1 A and 1 C contact forms available
40 Amps continuous carrying capacity
Contact switching capacity up to 120 Amps
Up to 125 degrees C operating temperature
Internal diodes or resistors available
PC792A
Max. Switching Voltage
75 VDC
1 Form A or 1 Form C
CONTACT RATINGS
CHARACTERISTICS
Operate Time
7 ms. typical
Release Time
Insulation Resistance
5 ms. typical
100 megohms min, at 500VDC, 50%RH
Dielectric Strength
500 Vrms, 1 min. between coil and contacts
Shock Resistance
20 g, 11ms, functional; 200 g, destructive
Vibration Resistance
Power Consumption
1.6 W approx.
Ambient Temperature Range
-40 to 85 degrees C operating, -40 to 125 degrees C for Class F
Weight
31 grams approx.
Sales: Call Toll Free (888)997-3933 Fax (818) 342-5296 email: pickerwest@sbcglobal.net URL: pickercomponents.com
3220 Commander Drive, Suite 102, Carrollton, Texas 75006
PC792A Rev C 3-7-06
PAGE 1
ORDERING INFORMATION
Example:
PC792A
Model
-12
Sockets available from Picker Components
Parallel Component
-1C
CONTACT DATA
Material
Initial Contact Resistance
Service Life
Mechanical
Electrical
AgSnInO (Silver Tin Indium Oxide)
100 milliohms max @ 0.1A, 6VDC
1 X 10
7
2 X 10
5
Operations
Operations
Normally Open
Nil: None; D: Diode; R: Resistor; N: Nickle Plated Terminals
Coil Voltage
-C1
Contact Form
Max Switching Current
Break 40 Amps
Make 120 Amps
60 Amps (at 20 degrees C)
Max. Continuous Current
Minimum Load
0.1 A @ 12 VDC
-RN
Drop Resistance
1 Meter height drop on concrete in final enclosure
Normally Closed
Break 30 Amps
Make 45 Amps
40 Amps (at 20 degrees C)
Case Style
C: Plug-In; P: PCB; C1: Plastic Bracket; C2: Metal Bkt
DA 1.27 mm, 10 - 40 Hz; 40-70 Hz: 5 g; DA 0.5mm, 70-100 Hz; 100-500 Hz: 10 g.
S
Enclosure
C: Dust Cover, S: Sealed Case
Contact Form
1A, 1C or 1U (1 form A with 2 #87 Terminals)
40 Amps (at 85 degrees C)
30 Amps (at 85 degrees C)
PC792A
PC792A
Sales: Call Toll Free (888) 997-3933 Fax (818) 342-5296 email: pickerwest@sbcglobal.net URL: pickercomponents.com
3220 Commander Drive, Suite 102, Carrollton, Texas 75006
PAGE 2
REFERENCE CURVES
COIL DATA
Coil Voltage
6
24
Resistance
ohms + 10%
Must Operate
Voltage Max.
(VDC)
Must Release
Voltage Min.
(VDC)
Continuous
Voltage Max.
(VDC)
22
90
330
7.2
14.3
1.2
2.4
20.5
39.1
_
3.6
0.6
10.1
12
(17.9)
.705
(8.4)
.331
(16.9)
.665
(8.0)
.315
87
87A
30
85
86
(17.9)
.705
(8.4)
.331
(16.9)
.665
(8.0)
.315
87
87A
30
85
86
(1.2 X 2.4)
.047 X .094
All Holes
30
87
85
86
Wiring Diagrams
30
87a
87
85
86
(-)
(-)
(+)
(+)
30
87a
87
85
86
(-)
(+)
Form 1U
Form 1A
Form 1C
Dimensions in Inches (millimeters)
Plug-In Type
Bottom View
PC Board Layout
Tolerances + .010 unless otherwise noted
Notes:
Maximum make current refers to inrush of a lamp load
In 85 degree C ambient reduce maximum coil voltage to 72%
Plug-In Case (C) and PCB Case (P)
(24.5)
.965
(26.5)
1.04
(26.5)
1.04
(6.3)
.250
(11.5)
.453
(0.8)
.031
50
55
60
65
70
75
80
85
90
95
100
11
12
13
14
15
16
17
18
AT 20 C
o
AT 85 C
o
AT 125 C
o
Coil Temp Rise
Contacts Carrying 40A
T
e
m
p
e
r
a
t
u
r
e
R
i
s
e
C
o
40
50
60
70
80
90
100
11
12
13
14
15
16
17
18
20A
30A
35A
40A
Coil Temp Rise
Ambient Temp 20 C
o
C
o
i
l
T
e
m
p
e
r
a
t
u
r
e
R
i
s
e
C
o
Coil Applied Voltage
Coil Applied Voltage
1
2
10
20
3
5
30
50
100
1
2 3
10
100
5
2030
50
N.O. Contact
N.C. Contact
Maximum Switching Capacity at 85 C
Arc Extinguished Resistive Loads
Switching Voltage(VDC)
Switching Current (Amps)
o
PC792A
PC792A
Sales: Call Toll Free (888) 997-3933 Fax (818) 342-5296 email: pickerwest@sbcglobal.net URL: pickercomponents.com
3220 Commander Drive, Suite 102, Carrollton, Texas 75006
PAGE 3
(22.0)
.866
(16.0)
.630
(24.5)
.965
(6.0)
.236
(6.4)
.252 Dia.
(26.5)
1.04
(26.5)
1.04
(4.2)
.165
(26.5)
1.04
(26.5)
1.04
(16.0)
.630
(24.5)
.965
(15.0)
.591
(6.0)
.236
(5.3)
.210 Dia.
(4.6)
.181
(13.3)
.524
(18.0)
.709
(7.0)
.275
.252 Dia.
(6.4)
(20.6)
.811
(45.3)
1.78
(36.0)
1.42
(36.0)
1.42
(10.4)
.409
Molded Plastic Bracket (C1)
Bent Metal Bracket (C3)
Metal Bracket (C2)
Skirted Case with Metal Bracket (C4)
Skirted Case with Bent Metal Bracket (C5)
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