AZ9731T 50 AMP MINI-ISO AUTOMOTIVE RELAY FEATURES • • • • • • • Quick connect terminals 50 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 Suitable for automobile and lamp accessory applications GENERAL DATA CONTACTS Arrangement Ratings SPST (1 Form A) SPDT (1 Form C) SPST NO DM ( 1 Form U) SPST (1 Form A2) Life Expectancy Mechanical Electrical Minimum operations 1 x 107 1 x 105 at 50 A, 14VDC Res. Operate Time (max.) 7 ms at nominal coil voltage Release Time (max.) 5 ms at nominal coil voltage Resistive load: Max. switched power: 700W Dielectric Strength 750 Vrms coil to contact (at sea level for 1 min.) 500 Vrms contact to contact Max. switched current: 50 A (N.O.) 40 A (N.C.) Insulation Resistance 100 megohms min. at 500 VDC, 20°C 50% RH Dropout Greater than 10% of nominal coil voltage Ambient Temperature Operating -40°C (-40°F) to 125°C (257°F) Vibration 0.059” DA at 10-40 Hz Shock 15 g Enclosure P.B.T. polyester Terminals Tinned copper alloy 0.25 Quick Connect Max. switched voltage: 75 VDC 1 Form A : 50A at 14VDC 1 Form C : 50A/40A at 14VDC (N.O./N.C.) 1 Form U : 2 x 25A at 14VDC Material Silver tin oxide Resistance < 100 milliohms initially (6 V, 1 A voltage drop method) COIL Power At Pickup Voltage (typical) 0.68 W Max. Continuous Dissipation 4.8 W at 20°C (68°F) Temperature Rise 75°C (135°F) at nominal coil voltage (40A) Temperature Note: Allow suitable slack on leads when wiring, and do not subject the terminals to excessive force. Weight 31 grams 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. 6/19/14 AZ9731T RELAY ORDERING DATA COIL SPECIFICATIONS Nominal Coil VDC 6 12 24 Must Operate VDC 3.9 7.8 15.6 Max. Continuous VDC 7.8 15.6 31.2 Coil Resistance ± 10% 22.5 90 360 RELAY ORDERING DATA A Z 9 7 3 1 T- 1 C - 1 2 D C 2 R 1 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 D3 - 1N4005 diode in parallel with coil, cathode on #85 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 24D - 24 volt coil 12D - 12 volt coil 6D - 6 volt coil 1A 1C 1U - SPNO Single pole normally open SPDT Single pole double throw SPST NO DM Single pole N.O. double make 1A2- SPNO Single pole normally open (2x) Basic series designation - AZ9731T 6/19/14 AZ9731T MECHANICAL DATA Viewed Toward Terminals 6/19/14