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