? 2016 littelfuse revised: 03/04/16 specifcations are subject to change without notice. he700 miniature dual in-line reed relay description the he700 is a miniature reed relay in a dil package with a choice of normally open, normally open high voltage, normally closed or changeover contacts capable of switching up to 300vdc at 10w. it is available with 5v, 12v, and 24v coils and diode suppression and also available with magnetic shield option. agency approvals agency agency file number e47258 reed relays features ? miniature dual in-line package ? optional coil suppression diode to protect coil drive circuits ? external magnetic shield option ? diode suppression option ? rohs compliant benefits ? one relay, various contacts choices reducing space and cost without compromising flexibility ? lower power coil consumption than competing electromechanical devices. ? hermetically sealed switching contact is immune to the effects of its environment ? transfer molded package gives maximum component protection applications ? security systems ? telecom equipments ? process control systems ? industrial equipments ? instrumentation dimensions dimensions in mm (inch) dil packaged > he700 table 1: dimension relay type body type l w h he700 transfer molded 19.05 (.750) 7.22 (.284) 5.50 (.217) external shield 20.14 (.793) 7.62 (.300) 5.82 (.229) 0.51 (.020) 0.51nom. (.020) 1 5.24 nom. (.60 0) 3.0 0 nom. (.1 18 ) 1 9.05 (.750) 20.1 4 (.793) fig. 1: he70 0 1 0.1 6 nom. (.40 0) h 0.51 (.020) 0.51nom. (.020) 1 5.24 nom. (.60 0) 3.0 0 nom. (.1 18 ) 0.25 nom. (.010 ) 9.52 (.375) fig. 2: he751 fig. 3: he70 0 (all) 1 0.1 6 nom. (.40 0) h w note: contact littelfuse for specific agency approval ratings. littelfuse.com
? 2016 littelfuse revised: 03/04/16 specifcations are subject to change without notice. he700 miniature dual in-line reed relay reed relays dil packaged > he700 table 2: electrical and operating characteristics @ 25c column number 1 2 3 4 contact type form a spst, dpst standard form c spdt-co standard form a spst high voltage form b spst-nc standard relay types he721, he722 he721c/e/r he751 he721 contact rating 1 power, switching voltage, switching current, switching current, carry watt - max. vdc - max. a - max. a - max. 10 200 0.5 1.2 5 175 0.25 1.5 10 300 0.5 1.2 10 200 0.5 1.5 voltage hold-off 4 across open contacts contacts to coil coil to e. shield between isolated terminals vdc - min. vac - min. vac - min. vac - min. 250 500 150 500 200 500 150 n/a 450 4000 n/a n/a 250 500 n/a n/a resistance 5 contact, initial insulation across open contacts insulation between isolated terminals max. min. min. 0.150 10 10 10 10 0.200 10 10 10 10 0.150 10 10 10 10 0.150 10 10 10 10 timing operate time release time ms - max. ms - max. 1.0 1.0 3.0 3.0 1.0 1.0 1.0 1.0 environmental temperature, operating temperature, storage vibration resistance shock resistance c c g - max. 10-2000 hz. g - max. 11 ms ? sine -40 to +85 -40 to +105 20 50 -40 to +85 -40 to +105 20 50 -20 to +85 -40 to +105 20 50 -40 to +85 -40 to +105 20 50 part numbering system he7x - x - x - x - xx contact type a - form a (spst-no or dpst-no) b - form b (spst-nc) c - form c (spdt-co) e - form c (spdt-co) alternate foot print 1 r - form c (spdt-co) alternate foot print 2 number of contacts 1 and 2 general options 00 - no options 10 - coil suppression diode 20 - electrostatic shield 30 - coil diode and e.s. shield 40 - external magnetic shield 50 - external magnetic shield and diode model number he72 - standard he75 - high voltage standard coil 05 - 5 volt 12 - 12 volt 24 - 24 volt note: not all combinations of part number suffxes are available. contact littelfuse for details. littelfuse.com
? 2016 littelfuse revised: 03/04/16 specifcations are subject to change without notice. packaging packaging option packaging specification quantity quantity & packaging code taping width bulk bulk 1000/5000 n/a n/a reed relays dil packaged > he700 he700 miniature dual in-line reed relay table 3: coil characteristics @ 25c contact form electrical and operating characteristics dimensions part number nominal coil voltage vdc coil resistance 10% ohms must operate vdc must release vdc maximum coil voltage vdc top view 2.54mm (0.1 " ) grid dot on case: pin 1 numbers not printed on case. 1a spst-no see table 2 column 1 figure 1 he721a0500 he721a1200 he721a2400 5 12 24 500 1000 2150 3.75 8.0 16.0 0.5 1.0 2.0 12 31 46 1b spst-nc see table 2 column 4 figure 1 he721b0500 he721b1200 he721b2400 5 12 24 500 500 2150 3.75 9.0 18.0 0.5 1.0 2.0 6.5 14 28 1c spdt-co see table 2 column 2 figure 1 HE721C0500 he721c1200 he721c2400 5 12 24 200 500 2000 3.75 8.0 16.0 0.5 1.0 2.0 14 22 44 1c spdt-co see table 2 column 2 figure 1 he721e0500 he721e1200 he721e2400 5 12 24 200 500 2000 3.75 8.0 16.0 0.5 1.0 2.0 14 22 44 1c spdt-co see table 2 column 2 figure 1 he721r0500 he721r1200 he721r2400 5 12 24 200 500 2000 3.75 8.0 16.0 0.5 1.0 2.0 14 22 44 2a dpst-no see table 2 column 1 figure 1 he722a0500 he722a1200 he722a2400 5 12 24 200 500 2150 3.75 8.0 16.0 0.5 1.0 2.0 12 22 46 1a spst-no high voltage see table 2 column 3 figure 2 he751a0500 he751a1200 he751a2400 5 12 24 500 1000 2150 3.75 8.0 16.0 0.5 1.0 2.0 12 31 46 he700 pcb layout (bottom view) 12.70 (.500) ?0.61 hole (.024) 15.24 (.600 ) 2.54 (.100) 7.62 (.300) notes: 1. he721b - exceeding recommended voltage may cause contact reclosure. 2. optional external magnetic shield not available on form b relays. notes 1 and 2 littelfuse.com
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