? all specifcations in this catalog and production status of products are subject to change without notice. prior to the purchase, please contact nec tokin for updated product data. ? please request for a specifcation sheet for detailed product data prior to the purchase. ? before using the product in this catalog, please read precautions and other safety precautions listed in the printed version catalog. 2006.03.24 p0691emdd03vol02e the information in this document is subject to change without notice. automotive relays ex2/ex1 series data sheet description the new nec ex2/ex1 series is pc-board mount ty pe and the most suitable for various motor and heater controls in the automobiles which r equire high quality and high performance. the ex2 series is succeeding in about 60% of miniaturization in comparison wi th the et2 series. the ex1 series is succeeding in about 50% of miniaturizat ion in comparison with the et1 series. features ? pc-board mounting ? lead free solder is used ? approx. 75% relay volume of et2 ? approx. 65% relay volume of et1 ? approx. 60% relay space of et2 ? approx. 50% relay space of et1 ? approx. 88% relay weight of et2 ? approx. 78% relay weight of et1 applications ? motor control ? solenoid control ex2 series ex1 series for proper use of miniature relays do not exceed maximum rating do not use relay under excessive conditions such as over ambient temperatur e, over voltage and over current. incorrect use could result in abnorma l heating and damage to the relay or other parts. read cautions in the selection guide read the cautions described in ne cs miniature relays (er0046ej*) before dose designing your relay applications.
? all specifcations in this catalog and production status of products are subject to change without notice. prior to the purchase, please contact nec tokin for updated product data. ? please request for a specifcation sheet for detailed product data prior to the purchase. ? before using the product in this catalog, please read precautions and other safety precautions listed in the printed version catalog. 2006.03.24 p0691emdd03vol02e 2 ex2/ex1 series schematic (bottom view) dimensions [mm] pcb pad layout [mm] (bottom view) (unit a) (unit b) ex2 ex1 6 7 8 9 10 1 2 3 4 5 1 2 3 4 5 vent hole 13.6 0.5 12.1 0.5 13.7 0.5 0.9 *3.5 +1.0/-0.5 EX2-2U1s 2a1 999 philippines philippines 3.4 * *2-0.4 x 1.1 3.4 6.05 5.25 0.75 5.25 6.05 0.75 3.95 4.55 5.35 3.4 3.35 3.95 5.35 3.4 *4-0.6 x 1.1 *4-0.4 x 0.7 7.5 0.5 12.1 0.5 13.7 0.5 *3.5 +1.0/-0.5 ex1-2u1s 2b4 001 *0.4 x 1.1 3.95 2.2 *2-0.6 x 1.1 *2-0.4 x 0.7 3.4 4.55 5.35 2.3 0.35 3.0 0.9 ex2 ex1 after solder dip 2- 1.1 +0.1/-0 3- 1.5 +0.1/-0 2- 1.1 +0.1/-0 2- 1.4 +0.1/-0 2- 0.9 +0.1/-0 4- 1.5 +0.1/-0 ex2 ex1
? all specifcations in this catalog and production status of products are subject to change without notice. prior to the purchase, please contact nec tokin for updated product data. ? please request for a specifcation sheet for detailed product data prior to the purchase. ? before using the product in this catalog, please read precautions and other safety precautions listed in the printed version catalog. 2006.03.24 p0691emdd03vol02e 3 ex2/ex1 series specification (at 20 c) specifications items ex2 ex1 contact form 1c x 2 (separate) 1c max. switching voltage 16vdc max. switching current 30a (at16vdc) min. switching current 1a (5vdc) max. carrying current 35a (2mi nutes max. 12vdc at 25c) 30a (2minutes max. 12vdc at 85c) 20a (2minutes max. 12vdc at 125c) contact rating contact resistance 4m ? typical (measured at 7a) initial contact material silver oxide complex alloy operate time (excluding bounce) 2. 5ms typical (at nominal voltage) release time (excluding b ounce) 3ms typical (at nominal voltage with diode) nominal operate power 900mw insulation resistance 100m ? at 500vdc between open contact 500vac min. (for 1minute) withstand voltage between contact and coil 500vac min. (for 1minute) misoperation 98m/s 2 shock resistance destructive failure 980m/s 2 misoperation 10 to 300hz, 43m/s 2 vibration resistance destructive failure 10 to 500hz 43m/s 2 , 200hour ambient temperature -40 to +125 c coil temperature rise 70c / w (without contact carrying current) mechanical 1 x 10 6 operations p/w motor lock (14vdc, 25a) 100x10 3 operations life expectancy electrical p/w motor free (14vdc, 25a/7a) 100x10 3 operations weight approx. 6.4g approx. 3.5g coil rating (at 20 c) part numbers nominal voltage (vdc) coil resistance ( ? )+/-10% must operate voltage (vdc) must release voltage (vdc) ex2/1-2u1s (sealed type) 12 160 6.5 0.9 ex2/1-2u1 (unsealed type) 12 160 6.5 0.9
? all specifcations in this catalog and production status of products are subject to change without notice. prior to the purchase, please contact nec tokin for updated product data. ? please request for a specifcation sheet for detailed product data prior to the purchase. ? before using the product in this catalog, please read precautions and other safety precautions listed in the printed version catalog. 2006.03.24 p0691emdd03vol02e 4 ex2/ex1 series numbering system ex2/1-2 u 1 s enclosure nil s : unsealed : sealed must operate voltage (at 20 c) contact material coil resistance (at 20 c) 2: 160 ? u: silver oxide complex alloy 1: 6.5v
? all specifcations in this catalog and production status of products are subject to change without notice. prior to the purchase, please contact nec tokin for updated product data. ? please request for a specifcation sheet for detailed product data prior to the purchase. ? before using the product in this catalog, please read precautions and other safety precautions listed in the printed version catalog. 2006.03.24 p0691emdd03vol02e 5 ex2/ex1 series technical data coil temperature rise 0 50 100 150 0 5 10 15 time (min) coil temperature rise ( c) 16v 12v 6.5v 0 50 100 150 0 0.5 1 1.5 coil wattage (w) saturated coil temperature ( c)
? all specifcations in this catalog and production status of products are subject to change without notice. prior to the purchase, please contact nec tokin for updated product data. ? please request for a specifcation sheet for detailed product data prior to the purchase. ? before using the product in this catalog, please read precautions and other safety precautions listed in the printed version catalog. 2006.03.24 p0691emdd03vol02e 6 ex2/ex1 series relay characteristics distribution (initial, n = 25 pcs., at 20c) cdf (%) cdf (%) operate/release voltage contact resistance operate time coil resistance release time 0.01 0.1 1 5 10 20 30 50 70 80 90 95 99 99.9 99.99 0 2 5 9 10 operate/release voltage (v) cdf (%) operate voltage release voltage 0.01 0.1 1 5 10 20 30 50 70 80 90 95 99 99.9 99.99 0 5 10 15 20 25 contact resistance (m ? ) contact resistance (n/o) contact resistance (n/c) 0.01 0.1 1 5 10 20 30 50 70 80 90 95 99 99.9 99.99 100 110 120 130 140 150 160 170 180 190 200 coil resistance ( ? ) coil resistance 0.01 0.1 1 5 10 20 30 50 70 80 90 95 99 99.9 99.99 6 7 8 9 10 release time (ms) cdf (%) cdf (%) release time release time (excluding contact bounce) (including contact bounce) with coil clump diode 0.01 0.1 1 5 10 20 30 50 70 80 90 95 99 99.9 99.99 6 7 8 9 10 operate time (ms) (excluding contact bounce) operate time operate time (including contact bounce) 8 7 6 4 3 1 0 2 5 4 3 1 0 2 5 4 3 1
? all specifcations in this catalog and production status of products are subject to change without notice. prior to the purchase, please contact nec tokin for updated product data. ? please request for a specifcation sheet for detailed product data prior to the purchase. ? before using the product in this catalog, please read precautions and other safety precautions listed in the printed version catalog. 2006.03.24 p0691emdd03vol02e 7 ex2/ex1 series electrical life test (14vdc-25a, p/w motor, lock) test items test conditions samples 1. operate voltage 2. release voltage 3. contact resistance 4. coil resistance 5. operate time 6. release time (with coil clump diode) temperature :20c frequency :0.2s on, 9.8s off, 0.1hz contact load :14vdc-25a, p/w motor, lock number of operations :100 x 10 3 EX2-2U1s 10 pcs 10 0 -50 10 0 -10 -20 -30 -40 50 40 30 20 -50 10 0 -10 -20 -30 -40 50 40 30 20 2 4 6 8 10 0 2 4 6 8 initial 6.5v max. 0.9v min. voltage (v) after test operate voltage release voltage operate voltage release voltage initial voltage (v) deviation (%) deviation (%) after test initial after test initial after test
? all specifcations in this catalog and production status of products are subject to change without notice. prior to the purchase, please contact nec tokin for updated product data. ? please request for a specifcation sheet for detailed product data prior to the purchase. ? before using the product in this catalog, please read precautions and other safety precautions listed in the printed version catalog. 2006.03.24 p0691emdd03vol02e 8 ex2/ex1 series 1 10 100 25m ? max. 1 10 100 25m ? max. 100 110 120 130 140 150 160 170 180 190 200 160 ? 10% 0 2 4 6 8 10 10ms max. 0 2 4 6 8 10 10ms max. initial after test initial after test initial after test initial after test initial after test contact resistance (n/o) contact resistance (n/c) coil resistance operate time release time resistance (m ? ) resistance ( ? ) time (ms) time (ms) resistance (m ? )
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