GENERAL DATA
Life Expectancy Minimum operations
Mechanical 1 x 107
Electrical 1 x 105at 40 A 14 VDC Res.
Operate Time (max.) 7 ms at nominal coil voltage
Release Time (max.) 5 ms at nominal coil voltage
Dielectric Strength 500 Vrms coil to contact
(at sea level for 1 min.) 500 Vrms contact to contact
Insulation Resistance 100 megohms min. at 500 VDC, 20°C
50% RH
Dropout Greater than 15% of nominal coil voltage
Ambient Temperature
Operating -40°C (-40°F) to 125°C (257°F)
Storage -55°C (-67°F) to 155°C (311°F)
Vibration 0.062” DA at 10-40 Hz
Shock 15 grams
Enclosure P.B.T. polyester
Terminals Tinned copper alloy
0.25 Quick Connect
Note: Allow suitable slack on leads when wiring, and do
not subject the terminals to excessive force.
Weight 31 grams
AZ9731
10/6/09
40 AMP MINI-ISO
AUTOMOTIVE RELAY
FEATURES
•Quick connect terminals
•40 Amp contact rating
•High operating temperature (125°C)
•Epoxy sealed versions available
•Plastic or steel mounting bracket available
•Resistor or diode parallel to coil available
• ISO/TS 16949, ISO14001
• Tested in accordance with SAE J2544
COIL
Power
At Pickup Voltage 0.68 W
(typical)
Max. Continuous 4.8 W at 20°C (68°F)
Dissipation
Temperature Rise 75°C (135°F) at nominal coil voltage (40A)
Temperature Max. 125°C (257°F)
NOTES
1. All values at 20°C (68°F).
2. Relay may pull in with less than “Must Operate” value.
3. Specifications subject to change without notice.
CONTACTS
Arrangement SPST (1 Form A)
SPDT (1 Form C)
SPST NO DM ( 1 Form U)
SPST (1 Form A2)
Ratings Resistive load:
Max. switched power: 630 W (SPST)
630 W (N.O.)
473 W (N.C.)
Max. switched current: 40 A (SPST)
40 A (N.O.)
30 A (N.C.)
Max. switched voltage: 75 VDC
Material Silver tin oxide
Resistance < 100 milliohms initially
(6 V, 1 A voltage drop method)
AZ9731-1C-12DC2 R1
RELAY ORDERING DATA
AZ9731
10/6/09
RELAY ORDERING DATA
COIL SPECIFICATIONS
Nominal Coil Must Operate Max. Continuous Coil Resistance
VDC VDC VDC ± 10%
6 3.9 7.8 22.5
12 7.8 15.6 90
24 15.6 31.2 360
Blank -Standard no diode, no resistor
R1 - 180 Ohm ½ w resistor in parallel with 6 V coil
680 Ohm ½ w resistor in parallel with 12 V coil
2700 Ohm ½ w resistor in parallel with 24 V coil
D2 - 1N4005 diode in parallel with coil, cathode
on #86 terminal
C1 - Plastic dust cover with steel mounting bracket
C1E - Plastic dust cover with steel mounting bracket,
sealed
C2 - Plastic dust cover with plastic mounting bracket
C2E - Plastic dust cover with plastic mounting bracket,
sealed
C3 - Plastic dust cover
C3E - Plastic dust cover, sealed
C4 - Plastic dust cover, shrouded,with metal
mounting bracket, sealed
24D - 24 volt coil
12D - 12 volt coil
6D - 6 volt coil
1A - SPNO Single pole normally open
1C - SPDT Single pole double throw
1U - SPST NO DM Single pole N.O. double make
1A2- SPNO Single pole normally open (2x)
Basic series designation - AZ9731
Version C2
.453MAX
[11.50]
FORM A
87
86(+)
30
85(-)
FORM C
87a
86(+)
30
85(-)
87
0.031
[0.80]
0.098
[2.50]
0.748
[19.00]
0.098
[2.50]
0.630
[16.00]
Ø0.217
[5.50]
0.236
[6.00] 0.354
[9.00]
.453MAX
[11.50]
.224
[5.70]
.602
[15.30]
Ø.209
[Ø5.30]
.031
[0.80]
.181
[4.60]
.248
[6.30]
0.122
[3.10]
0.248
[6.30]
Version C1
.031
[0.80]
1.043MAX
[26.50]
0.965MAX
[24.50]
1.043MAX
[26.50]
0.965MAX
[24.50]
1.043MAX
[26.50]
1.043MAX
[26.50]
.224MAX
[5.70]
.181
[4.60]
0.547
[13.89]
5x.031
[0.80]
.661
[16.80]
.331
[8.40]
4x.248
[6.30]
85.705
[17.90]
87
87a
30 (86)
86
(30)
FORM C & U
.331
[8.40]
.661
[16.80]
.705
[17.90]
4x.031
[0.80]
5x.248
[6.30]
85
30
87
86
FORM A
Version C3
1.043MAX
[26.50]
0.965MAX
[24.50]
.453MAX
[11.50]
.248
[6.30] .031
[0.80]
1.043MAX
[26.50]
.228MAX
[5.80]
.181
[4.60]
Version C4
[4 6 .5 ]
1.831
[3 5 .5 ]
1.398
[35.5]
1.40
5 x .032
[0 .8 ]
[6 .3 ]
5 x .248
[11.5]
5 x .453
85
87
86
87A
30
[1 .8 ]
.0 7 1
[20.0]
.7 8 7
[9 .0 ]
.3 5 4
[4 .4 ]
.1 7 3
[6 .9 ]
.2 7 2
[1 7 .9 ]
.7 0 5
.665
[1 6 .9 ]
[8 .4 ]
.331
[8 .0 ]
.3 1 5
.6 5 0
[1 6 .6 ]
.2 6 2
[6 .6 5 ]
.8 5 8
[2 1 .8 ]
.3 5 4
[.9 0 0 ]
.776
[1 9 .7 ]
1.79 M AX
[4 5 .5 ]
FORM U
87a
30
86(+)
85(-)
87
FORM 1A2
87
86(+)
30
85(-)
87
5x.031
[0.80]
.661
[16.80]
.331
[8.40]
4x.248
[6.30]
85.705
[17.90]
87
87
30
86
FORM 1A2
AZ9731
10/6/09
MECHANICAL DATA
Dimensions in inches with metric equivalents in parentheses. Tolerance: ± .010"
Viewed Toward Terminals
Wiring Diagrams
Outline Dimensions Mounting Layout
AZ9731
10/6/09
.945
[24.0]
.090
[2.3]
.472
[12.0]
.945
[24.0]
1.205
[30.6]
[2.0]
.079
.905
1.091
[27.7]
1.300
[33.0]
[9.0]
.354
VIEWED TOWARDS TERMINALS
.236
[6.0]
ST9721-U3ST9721-U2
1.417
[36.0]
1.043
[26.5]
[23.0]
ST9721-U1
Ø
.
11
6
[
Ø
2.9
]
.
2
00
[
5.1
]
1
.0
4
3
[
26.5
]
.94
5
[
24.0
]
.
24
5
[
6.2
]
.0
7
5
[
1.9
]
.059
[
1.5
]
.3
7
5
[
9.5
]
.
1
38
[
3.5
]
.5
7
1
[
14.5
]
.664
[
16.9
]
.
7
05
[
17.9
]
.332
[
8.4
]
.
2
56
[
6.5
]
.6
2
6
[
15.9
]
.0
7
5
[
1.9
]
.
2
56
[
6.5
]
2X TA
B
Ø
.083
[
Ø
2
.1
]
Sockets & Hardware for AZ9731
[1] Recommended receptical connector Amp Part numbers are 5-160558-9 or 5-1605-26-9
[1]
[1]
