??2005?teledyne?relays? (800)?284-7007???www.teledynerelays.com? zd20cf?page?1 2dSZD20CF?rev?-- zd20cf?series 2a,?60?vdc?optically?isolated short-circuit?protected part?number? description zd20cf*? 2a,?60?vdc,?short-circuit?protected? up?to?33?vdc,?solid-state?relay?for? through-hole??mounting SZD20CF*? 2a,?60?vdc,?short-circuit?protected?up? to?33?vdc,?solid-state?relay?for?surface? mount *w?for?+25c?ambient;?t?for?over-temperature?screen electrical?specifications (C55c?to?+105c?ambient?temperature unless?otherwise?speci?ed) input?(control)?specifications ? min? max? units input?current? 8? 20? ma input?voltage?@10ma? 2? 3? vdc must?turn-on?? 8? ? ma must?turn-off?current? ? 100? a must?turn-off?voltage? ? 0.8? vdc reverse?polarity? C6? ? vdc output?(load)?specifications ? min? max? units load?voltage?range? 0? 60? vdc output?current?rating?(see?figure?5)? 2.0? a leakage?current?at?rated?voltage? ? 10? a transient?blocking?voltage?@25c?? 100? vdc output?capacitance?@25vdc?(25c)? 600? pf output?voltage?drop?@2a? ? 0.30? vdc on?resistance? ? 0.15? ohm turn-on?time? ? 3.0? ms turn-off?time? ? 1.0? ms trip?overload? (see?figure?6)? ? a? short?circuit?protection? ? 33? vdc operating?frequency? ? 10?? hz?? features/benefits ?? short-circuit?protected ?? overload?protected? ?? 2?amp?load ?? low?off-state?leakage ?? optical?isolation ?? compact?6-pin?package description zd20cf?series?relays?have?optical?isolation?between? relay? input? and? output.? ? loads? may? be? connected? to? either? the? positive? or? negative? output? terminals .?? zd20cf? relays? act? as? electronic? circuit? breakers? that? sense? shorted? loads? or? other? overload? events? and?then?trip-off.??relay?contacts?open?and?no?current? ?ows?through?the?relay?and?associated?loads.??these? relays? prevent? overcurrent? damage? to? the? system.?? cycling? the? relay? on-off? removes? the? tripped? or? latched-off? condition? and? returns? the? relay? to? the? normal?operating?state. general?specifications (+25c?ambient?temperature?unless?otherwise?speci?ed) environmental?specifications ? min? max? units operating?temperature? C55? +105? c storage?temperature? C55? +125? c junction?temperature?@2a? ? +125? c thermal?resistance ? ja ? ? +120?? c/w dielectric?strength? 1000? ? vac insulation?resistance?? (@500?vdc)? 10 9 ? ? ohm input?to?output?capacitance? ? 5? pf shock????????? mil-std-202,?method?213,?cond.?f,?1500g vibration?????mil-std-202,?method?204,?cond.?f,?100g resistance?to?soldering?heat? mil?std?202,?method?210 solderability? mil?std?202,?method?208 thermal?shock? mil?std?202,?method?107 free datasheet http:///
zd20cf?page?2????????????????????????????????????specifications?are?under?revision?control???? ??2005 ?teledyne?relays 2dSZD20CF?rev?-- zd20cf?series 2a,?60?vdc?optically?isolated short-circuit?protected mechanical?specifications figure?1 typical?wiring?diagram *shorted?internally **series?resistor?required?to?limit?input?current?to?20ma?maximum load load * * 65 4 12 3 rs ** zd20cf figure?2 typical?turn-on?time?vs.?input?current figure?4 figure?4 control?current?vs.?input?voltage volts control?current?(ma) 2018 16 14 12 10 86 4 2 0 0 .5 1.0 1.5 2.0 2.5 3.0 3.5 +105c +25c C55c load?current?vs.?ambient?temperature figure?5 figure?3 ambient?temperature?(c) load?current?(a) 2.42.0 1.6 1.2 0.8 0.4 0 C55 C35 C15 5 25 45 65 85 105 125 free datasheet http:///
??2005?teledyne?relays? (800)?284-7007???www.teledynerelays.com? zd20cf?page?3 2dSZD20CF?rev?-- zd20cf?series 2a,?60?vdc?optically?isolated short-circuit?protected figure?6 typical?overload?current?vs.?trip?time notes: 1.?the?zd20cf?relays?input?current?should?be? limited?to?between?8?and?20ma.?an?external? resistor?whose?value?=(v in ?C?2.5?volts)??0.012? amps?is?a?good?choice?for?limiting?input?current. 2.?relay?input?transitions?should?be?less?than?1.0? millisecond. 3.?loads?may?be?attached?to?either?the?positive?or? negative?output?terminal. 4.?maximum?load?current?ratings?are?with?the?relay? in?free?air?and?soldered?to?a?printed?circuit?board. 5.?timing?is?measured?from?the?input?current? transition?to?the?10%?or?90%?points?on?the? output?voltage?transition. 6.?overload?conditions?(including?shorted?loads)? are?speci?ed?for?load?supply?voltages?to?33?vdc? maximum. 7.?for?through-hole-pcb-solder-attaching?zd20cf? series?relays,?the?wave-solder?or?solder?pot? operations?are?limited?to?+260c?maximum?for? 10?seconds,?maximum. 8.?for?surface-mount-solder-attaching?SZD20CF? series?relays,?in?ir?heating?or?convection?heating? systems,?the?component?temperature?is?limited? to?+235c?maximum?for?10?seconds?maximum. functional?block?diagram figure?7 +in?(1)input with leds Cin?(3) optical isolation detection circuit switching circuit output?switch(mosfet) with?current sense +out?(6) Cout?(4) free datasheet http:///
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