world products, llc 19654 eighth street east, sonoma, ca 95476 | phone (707) 996-5201 | fax (707) 996-3380 | www.worldproducts.com rev. 18.0 (12.14.10) 12 | industrial relays catalog industrial relays ul & cul file #e256619 features 1. ultra-miniature size with universal terminal footprint 2. high contact capacity : 12a 3. sealed types available 4. low coil power consumption ordering information rd 1a - 12 s f (1) (2) (3) (4) (5) (1) basic designation rd = rd series (2) contact arrangement 1a = 1 form a (spst-no) 1b = 1form b (spst-nc) 1c = 1 form c (spdt) (3) coil voltage 3~48v (4) enclosure nil = unsealed type s = sealed type (5) insulation system nil = standard f = class f rd series coil r atings ( at 20c) coil nominal voltage (vdc) coil resistance ( 10%) pick-up voltage (vdc) max. drop-out voltage (vdc) min. nominal operating power (w) max. allowable voltage 3 25 2.25 0.15 0.36 130% of nominal voltage 5 69 3.75 0.25 6 100 4.50 0.30 9 225 6.75 0.45 12 400 9.00 0.60 18 900 13.5 0.90 24 1600 18.0 1.20 48 6400 36.0 2.40 dimensions unit: mm 3.4 19.6 0.4 12.2 0.2 ? 0. 6 0.3 2 3.5 0.3 15.0 0.5 15.4 0.5 0.5 0.5 1.0 1.0 1.7 0.5 3 - ? 1.3 2 - ? 1.3 2 - ? 1.0 2 - ? 1.0 12 0.2 12 0.2 2 0.2 2 0.2 12.2 0.2 12.2 0.2 2 - ? 1.3 2 - ? 1.0 12 0.2 2 0.2 12.2 0.2 1c 1c 1a 1a 1b 1b schematics bottom view pcb layout bottom view unit: mm
world products, llc 19654 eighth street east, sonoma, ca 95476 | phone (707) 996-5201 | fax (707) 996-3380 | www.worldproducts.com rev. 18.0 (12.14.10) industrial relays catalog | 13 rd series c ontact r atings contact arrangement 1c; 1a ; 1b max. switching power 1250va 280w max. switching voltage 250vac 125vdc max. switching current 12a contact resistance (by voltage drop 6v 1a) 50m max. ul/ c-ul resistive load (cos ? = 1) inductive load (cos ? = 0.75 ~ 0.8) 1a arrangement only 12a / 125vac 15a /125vac(no) 10a / 250vac(no) 10a / 28vdc 7a / 250vac 3a / 125vac contact material silver alloy characteristics electrical life (at 20cpm) 1 x 10 5 mechanical life (at 180 cpm) 1 x 10 7 initial insulation resistance min. 100m 500vdc operate time 8ms max. release time 5ms max. initial breakdown voltage 50/60hz 750vac 1 min. (between open contacts) 50/60hz 1500vac 1 min. (between coil & contact) vibration resistance functional: 10 to 55hz at double amplitude of 1.5mm destruction: 10 to 55hz at double amplitude of 1.5mm shock resistance functional: min. 10g destruction: min. 100g ambient temperature -40c ~ +85c ambient temperature (f class) -40c ~ +105c temperature rise (max.) 65 operating humidity 45 to 85% rh unit weight approx. 9g reference d ata coil t emperatur e rise operate time/ release time life expectancy coil power(w) release time operate time 60 50 40 30 20 10 temp. rise (deg.) 0.2 0.3 0.4 0.5 0.6 0.7 0.8 coil power(w) time (ms) load current(a) operation(x10 4 ) 10 8 4 2 6 0.2 0.3 0.4 0.5 0.6 0.7 0.8 1000 100 10 2 4 6 8 10 12
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