panasonic corporation automation controls business unit industrial.panasonic.com/ac/e/ st asctb210e 201202-t ordering information 1a1b/2a 8a polarized power relays st relays vde features 1. even with small form factor, sensitive enough for direct ic- driving the dimensions of this high-density 4- gap balanced armature are 31 mm 14 mm 11 mm 1.220 inch .551 inch .433 inch . despite this small size, high sensitivity is achieved by a mechanism that incorporates high- ef?iency polarized magnetic circuits along with our exclusive spring alignment method. with an minimum operating power of about 150 mw, nominal operating power of 240 mw, this relay can be directly driven by transistor or chip controllers. rohs compliant 2. high switching capability high contact pressure, low contact bounce, and forced separation structure that radically improves resistance to contact welding (1 form a 1 form b type equivalent to tv-3). strong against lamp inductive loads, maximum switching capacity has reached 3,040 va (8a 380v ac). 3. high breakdown voltage ?optimal for control in 250 v power circuits high breakdown voltage has been achieved. between contacts and coil of 3,750 vrms; surge breakdown voltage between coil and contact of 6,000 v, and between open contacts of 1,200 vrms mean that these relays are suitable even for 250 v power circuit control. 4. improved stability conforms to all types of safety standards. insulating distance of more than 3 mm secured. complies with japan electrical appliance and material safety law requirements for operating 200 v power supply circuits, and conforms with ul, csa and vde standards. 5. latching types available in addition to single side stable types, convenient 2 coil latching types with memory functions are also available. moreover, we offer 2 form a speci?ations which, with double pole switching for applications such as 250 v power circuit switching, can enable safer designs. 6. automatic cleaning possible the sealed design means that these relays can undergo immersion in automatic washing systems and are suitable for automatic soldering. even in dif?ult environments, the contacts remain reliable. 7. easy to design pc board patterns features 4/10 dual-in-line terminals. because the lead spacing has a pitch greater than 7.54 mm .297 inch , designers can make easy adjustments with the width of the land size. this, along with the large insulation distance, simpli?s the drawing of pc board patterns. 8. to improve soldering ef?iency, preapplication of solder to the terminals is recommended. 9. sockets are available. contact material f: agsno 2 type contact nominal coil voltage dc 3, 5, 6, 9, 12, 24, 48 v contact arrangement 1: 1 form a 1 form b 2: 2 form a st f operating function nil: l2: single side stable 2 coil latching note: certified by ul, csa, vde and sev
panasonic corporation automation controls business unit industrial.panasonic.com/ac/e/ st asctb210e 201202-t types standard packing: carton: 50 pcs.; case: 500 pcs. * for sockets, see page 113. rating 1. coil data 1) single side stable 2) 2 coil latching contact arrangement nominal coil voltage single side stable 2 coil latching part no. part no. 1 form a 1 form b 3v dc st1-dc3v-f st1-l2-dc3v-f 5v dc st1-dc5v-f st1-l2-dc5v-f 6v dc st1-dc6v-f st1-l2-dc6v-f 9v dc st1-dc9v-f st1-l2-dc9v-f 12v dc st1-dc12v-f st1-l2-dc12v-f 24v dc st1-dc24v-f st1-l2-dc24v-f 48v dc st1-dc48v-f st1-l2-dc48v-f 2 form a 3v dc st2-dc3v-f st2-l2-dc3v-f 5v dc st2-dc5v-f st2-l2-dc5v-f 6v dc st2-dc6v-f st2-l2-dc6v-f 9v dc st2-dc9v-f st2-l2-dc9v-f 12v dc st2-dc12v-f st2-l2-dc12v-f 24v dc st2-dc24v-f st2-l2-dc24v-f 48v dc st2-dc48v-f st2-l2-dc48v-f nominal coil voltage pick-up voltage (at 20 c 68 f ) drop-out voltage (at 20 c 68 f ) nominal operating current [ 10%] (at 20 c 68 f ) coil resistance [ 10%] (at 20 c 68 f ) nominal operating power max. applied voltage (at 20 c 68 f ) 3v dc 80%v or less of nominal voltage (initial) 10%v or more of nominal voltage (initial) 75ma 38 ? 240mw 150%v of nominal voltage 5v dc 47ma 105 ? 6v dc 40ma 150 ? 9v dc 25ma 360 ? 12v dc 20ma 600 ? 24v dc 10ma 2,400 ? 48v dc 4.7ma 9,000 ? nominal coil voltage set voltage (at 20 c 68 f ) reset voltage (at 20 c 68 f ) nominal operating current [ 10%] (at 20 c 68 f ) coil resistance [ 10%] (at 20 c 68 f ) nominal operating power max. applied voltage (at 20 c 68 f ) set coil reset coil set coil reset coil set coil reset coil 3v dc 80%v or less of nominal voltage (initial) 80%v or less of nominal voltage (initial) 75ma 75ma 40 ? 40 ? 240mw 240mw 150%v of nominal voltage 5v dc 45ma 45ma 110 ? 110 ? 6v dc 37.5ma 37.5ma 155 ? 155 ? 9v dc 25ma 25ma 360 ? 360 ? 12v dc 18.8ma 18.8ma 640 ? 640 ? 24v dc 10ma 10ma 2,400 ? 2,400 ? 48v dc 4.7ma 4.7ma 10,200 ? 10,200 ?
panasonic corporation automation controls business unit industrial.panasonic.com/ac/e/ st asctb210e 201202-t 2. speci?ations notes: *1. this value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load. *2. wave is standard shock voltage of 1.2 50 s according to jec-212-1981 *3. the upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. refer to usage, transport and storage conditions in notes. reference data characteristics item speci?ations contact arrangement 1 form a 1 form b, 2 form a contact material au-?shed agsno 2 type contact resistance (initial) max. 30 m ? (by voltage drop 6 v dc 1a) rating max. switching power (resistive load) 3,040 va, 150 w max. switching voltage 380 v ac, 250 v dc max. switching current 8 a minimum operating power 150mw (single side stable, 2 coil latching) nominal operating power 240mw (single side stable, 2 coil latching) min. switching capacity (reference value)* 1 100 ma 5v dc electrical characteristics insulation resistance (initial) (at 25 c, 50% relative humidity) min. 1,000m ? (at 500v dc) measurement at same location as ?reakdown voltage section. breakdown voltage (initial) between open contacts 1,200 vrms for 1 min. (detection current: 10 ma) between contact sets 2,000 vrms for 1 min. (detection current: 10 ma) between contact and coil 3,750 vrms for 1 min. (detection current: 10 ma) surge breakdown voltage (initial)* 2 6,000 v (between contact and coil) operate time [set time] (at 20 c 68 f ) max. 15 ms [max. 15 ms] (nominal coil voltage applied to the coil, excluding contact bounce time.) release time [reset time] (at 20 c 68 f ) max. 10 ms [max. 15 ms] (nominal coil voltage applied to the coil, excluding contact bounce time.) (without diode) temperature rise (coil) (at 60 c 140 f ) max. 55 c (by resistive method, nominal voltage applied to the coil; contact carrying current: 8a.) mechanical characteristics shock resistance functional min. 196 m/s 2 (half-wave pulse of sine wave: 11 ms; detection time: 10 s.) destructive min. 980 m/s 2 (half-wave pulse of sine wave: 6 ms.) vibration resistance functional 10 to 55 hz at double amplitude of 2 mm (detection time: 10 s.) destructive 10 to 55 hz at double amplitude of 3 mm expected life mechanical min. 10 7 (at 180 times/min.) electrical min. 10 5 (8 a 250 v ac resistive) (on : off = 1 s : 5 s) conditions conditions for operation, transport and storage* 3 ambient temperature: ?0 c to +60 c ?0 f to +140 f ; humidity: 5 to 85% r.h. (not freezing and condensing at low temperature) max. operating speed 30 cps unit weight approx. 10g .353 oz 1. max. switching power 2. coil temperature rise 3. in?ence of adjacent mounting 10 5 2 1 0.5 0.2 020 50 100 200 300 600 1000 v oltage, v current, a ac inductive load (cos ? =0.4) dc inductive load (l/r=40ms) ac resistive load dc resistive load 100 0.2 0.4 0.6 0.8 1.0 1.2 90 80 70 60 50 40 30 20 10 0 temperature rise, c coil operating power, w 0a contact current 8a pick-up voltage drop-out voltage 40 30 20 10 0 -10 -20 -30 -40 5101520 rated of change, % inter-relay distance, mm
panasonic corporation automation controls business unit industrial.panasonic.com/ac/e/ st asctb210e 201202-t dimensions (mm inch ) safety standards notes for cautions f or us e . ul/c-ul (recognized) csa (certi?d) vde (certi?d) tv rating (ul/csa) sev file no. contact rating file no. contact rating file no. contact rating file no. rating file no. contact rating e43028 8a 250v ac 1 / 4 hp 125, 250v ac 5a 30v dc lr26550 etc. 8a 250v ac 1 / 4 hp 125, 250v ac 5a 30v dc 1017 8a 250v ac (cos =1.0) 4a 250v ac (cos =0.4) 5a 30v dc ul: e43028 csa: lr26550 98-1 10289 8a 380v ac the cad data of the products with a cad data mark can be downloaded from: http://industrial.panasonic.com/ac/e/ external dimensions general tolerance: 0.5 .020 31.0 11.0 7.62 7.62 10.16 10.16 14 0.3 3.5 .138 1.0 1.0 .039 .039 0.6 dia. .024 dia. 0.3 .012 85 4321 7 6 1.0 .039 0.5 .020 .300 .300.400 1.220 .400 .551 .433 .012 pc board pattern (bottom view) tolerance: 0.1 .004 2 coil latching types only. 8-1.4 dia. 2.54 2.54 .100 .100 8-.055 dia. schematic (bottom view) single side stable 2 coil latching 1 form a 1 form b 2 form a 1 form a 1 form b 2 form a 14 5678 ? 14 5678 ? 12 5678 ? 34 + 12 ? 34 + 5678 (deenergized condition) (reset condition) cad data 1. pc board patterns for 2 coil latching types when applying relays in power supply operation circuits for ?ished products regulated by the electrical appliance and material safety law, use the pattern shown below. 2. soldering should be done under the following conditions: 1) 250 c 482 f within 10s 300 c 572 f within 5s 350 c 662 f within 3s 2) for automatic cleaning, the boiling method is recommended. avoid ultrasonic cleaning which subjects the relays to high frequency vibrations, which may cause the contacts to stick. it is recommended that a ?orinated hydrocarbon or other alcoholic solvents be used. 3. when using, please be aware that the a contact and b contact sides of 1 form a and 1 form b types may go on simultaneously at operate time and release time. 1 te r minal no. 2 3 4
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