SONG CHUAN 303 Features Ultra Micro ISO Automotive relay. High Rating up to 20A. High Temperature withstand up to 125 ambient. General Purpose for Automotive applications. Comply with RoHS-Directive 2002/95/EC, and ELVDirective 2000/53/EC. Type List Terminal style Contact Designation form (provided with) Flux tight Sealed type washable ---------- 303-1AH-C 303-1AH-S Resistor 303-1AH-C-R1 303-1AH-S-R1 Diode 303-1AH-C-D1 303-1AH-S-D1 1A (SPNO) Socket terminal Enclosure style Ordering Information 303 1 - 1A 2 H 3 - C 4 1. 303 -- Basic series designation 2. 1A -- Single pole normally open 3. H -- Contact material AgSnO 4. C S -- Flux tight -- Sealed type washable - R1 5 5. Blank -- Standard type R1 -- Coil parallel with 1/2W resistor for 12V 1.1K7, 24V 4.3K7 D1 -- Coil parallel with diode IN4007 the positive pole on # 85 terminal Contact Rating Resistive 20A 14VDC, 10A 28VDC, 100K ops. Motor 16A 14VDC Inrush 80AON 2s / OFF 5s, -30+80, 300K ops. Lamp 16A 14VDC Inrush 80AON 3s / OFF 3s, -30+100, 100K ops. Coil Rating (DC) Rated Rated current Coil resistance Max continuous Pick up Drop out Power consumption Voltage 10 % at 23 C 10 % at 23 C voltage voltage(Max) voltage(Min) at rated at 23C at 23C voltage (V) (mA) (7) at 85C 12 80 150 133 % of 60 % of 8 % of 24 40 600 rated rated rated voltage voltage voltage approx. 0.96W 281 SONG CHUAN 303 Specification Contact material AgSnO alloy Contact voltage drop Operate time (1) Release time (1) (1) Typ. 50mV at 10A 10 ms Max. 10 ms Max. Insulation resistance (1) 20 M7 Min. (DC 500V) Between open contact Dielectric strength (1) : AC 500V, 50/60Hz 1 min. Between contact and coil Vibration resistance Shock resistance Life expectancy : AC 500V, 50/60Hz 1 min. Operating extremes 10500Hz , 5.0G Damage limits 10500Hz , 5.0G Operating extremes 10G Damage limits 100G Mechanical 10,000,000 operations (frequency 18,000 operations/hr) -40 ~ +125C (no freezing) Operating ambient temperature Weight Approx. 20 g Note : (1) initial value Outline Dimensions 23.7 (0.933) 11 15 (0.591) (0.433) 16 (0.630) 0.8X4 (0.031) 8.1 85 86 30 7.8 87 (0.307) (0.319) Wiring Diagram BOTTOM VIEW D1 R1 (-) 282 87 85 87 85 87 85 86 30 (+) 86 30 86 30 SONG CHUAN 303 Engineering Data Life expectancy Safe breaking,arc extinguished (normally open contact)for risistive loads 10 7 75 Number of operations 60 50 40 30 28 0W 20 10 W 0W 50 Switching voltage(VDC) 70 15 10 10 6 5 10 0.5 1 2 3 5 7 10 20 Switching current(A) 0 1 5 10 15 20 25 14VDC resistive load/switching current(A) Ambient temperature vs. coil voltage for continuous duty Life expectancy 10 10 7 Max.allowable ambient temperature Number of operations 10 6 5 120 110 100 A 90 80 70 60 50 40 30 90 0 0 4 2 6 10 8 12 28VDC resistive load/switching current(A) 100 110 120 130 140 150 160 Applied coil voltage(% of rated nominal) A:20A Contact load(risistive) Maximum mean coil temperature=180 Operate time/Release time 8 7 Operate time Time (ms) 6 max 5 avg min 4 3 Release time 2 max avg 1 min 0 70 80 90 100 110 120 130 140 150 % of Nominal coil voltage (at 23) -------- All specifications subject to change. Please contact Song Chuan for update. -------- 283