AZ9421A 20 AMP MINIATURE AUTOMOTIVE RELAY FEATURES • • • • • • • High switching capacity — 20 Amps DC coils to 24 VDC Epoxy sealed versions available Class F insulation for high temperature operation QS9000, ISO9001, ISO14001 Tested in accordance with SAE J2544 Extremely cost effective CONTACTS Arrangement Ratings Medium Duty SPST (1 Form A) SPDT (1 Form C) Resistive load Max. switched power: 420 W or 2500 VA Max. switched current: 20 A Max. switched voltage: 30 VDC or 250 VAC Material Silver tin oxide Resistance <100 milliohms initially (24 V, 1 A voltage drop method) GENERAL DATA Life Expectancy Mechanical Electrical Minimum operations 1x107 1 x 105 at 20 A 14 VDC Res. Operate Time (typical) 10 ms at nominal coil voltage Release Time (typical) 5 ms at nominal coil voltage (with no coil suppression) Dielectric Strength 2500 Vrms contact to coil (at sea level for 1 min.) 1000 Vrms across contacts COIL Power At Pickup Voltage (typical) 450 mW Insulation Resistance 100 megohms min. at 20°C, 500 VDC, 50% RH Dropout Greater than 10% of nominal coil voltage Ambient Temperature At nominal coil voltage Operating -40°C(-40°F) to 85°C(185°F) Storage -55°C(-67°F) to 155°C(311°F) Max Continuous Dissipation 1.3 W at 20°C (68°F) ambient Temperature Rise 40°C (72°F) at nominal coil voltage Vibration 0.039" DA at 10–55Hz Temperature Max. 155°C (311°F) Shock 10 g operational, 100 g damage Enclosure P.B.T. polyester Terminals Tinned copper alloy, P.C. Max. Solder Temp. 270°C (518°F) Max. Solder Time 5 seconds Max. Solvent Temp. 80°C (176°F) 3. Unsealed relays should not be dip cleaned. Max. Immersion Time 30 seconds 4. Specifications subject to change without notice. Weight 10 g NOTES 1. All values at 20°C (68°F). 2. Relay may pull in with less than “Must Operate” value. 11/30/06 AZ9421A RELAY ORDERING DATA STANDARD RELAYS COIL SPECIFICATIONS ORDER NUMBER* Nominal Coil VDC 6 Must Operate VDC 4.5 Max. Continuous VDC 7.8 Coil Resistance ±10% 45 AZ9421A–1CT–6D AZ9421A–1CT–6DE 12 9.0 15.6 180 AZ9421A–1CT–12D AZ9421A–1CT–12DE 24 18.0 31.2 AZ9421A–1CT–24D AZ9421A–1CT–24DE 720 Unsealed Sealed *Substitute “1AT” in place of “1CT” to indicate 1 Form A contact. MECHANICAL DATA PC Board Layout Outline Dimensions .768MAX [19.5] .630MAX [16.0] .079 [2.0] .480 [12.2] .673MAX [17.1] .480 [12.2] .083 [2.1] .138 [3.5] 2-Ø.028 [Ø0.7] .079 [2.0] .472 [12.0] .472 [12.0] .236 [6.0] 3-.039X.016 [1.0X0.4] 5-Ø.051 [Ø1.3] BOTTOM VIEW Wiring Diagram 2 2 3 1 3 1 5 5 1A 4 1C Dimensions in inches with metric equivalents in parentheses. Tolerance: ±0.010" 11/30/06