, o ne. 20 stern ave. springfield, new jersey 07081 u.s.a. telephone: (973) 376-2922 (212)227-6005 fax: (973) 376-8960 silicon controlled rectifier reverse blocking triode thyristor ... designed for industrial and consumer applications such as temperature, light and speed control; process and remote controls; warning systems; capacitive discharge circuits and mpu interface. ? center gate geometry for uniform current density ? all diffused and glass-passivated junctions for parameter uniformity and stability ? small, rugged thermowatt construction for low thermal resistance, high heat dissipation and durability ? low trigger currents, 200 jia maximum for direct driving from integrated circuits mcr72-1 thru mcr72-8 scr* 8 amperes rms 25 thru 600 volts maximum ratings to-220ab rating peak repetitive forward and reverse blocking voltage (note 1) (tj = -40 to 110c) (1/2 sine wave, rqk = 1 ml) -1 -2 -3 mcr72 -4 ?5 -6 -7 -8 on-state rms current (tc = 83c) peak non-repetitive surge current (1/2 cycle, 60 hi, tj = -40 to 110c) circuit fusing (t = 1 to 8.3 ms) peak gate voltage (t ?; 10 /?>) peak gate current (t = 10 /is) peak gate power (t =s 10 fj.s) average gate power operating junction temperature range symbol vdrm or vrrm itirmsi itsm |2t vgm igm pgm pg(av) tj value 25 50 100 200 300 400 500 600 8 100 40 5 1 5 0.75 -40 to +110 unit volts amps amps a2s volts amp watts watts ?c note .1- ratings apply for negative gate voltage or rqk = 1 kfl devices shall not hive a positive gate voltaga concurrently with a :?;.j negative voltage on the anode. devices should not be tested with a constant current source for forward and reverse blocking capability such that the voltage applied exceeds the rated blocking voltage. (com.) quality semi-conductors
mcr70 ? mcr71 s?ri?s electrical characteristics (tc - 25c unl?i> otherwise noted.) characteristic peak forward or reverse blocking current (note 1) (rated vdrm or vrrm) tj = 26c tj = 125"c on-state voltage (note 2) ?tm - 70 a) mcr70 series (itm-175a) mcr71, aeries htm - 860 a, tw - 1 ms) note 3 mcr70 series htm - 1700 a, tw - 1 ma) note 3 mcr71 series gate trigger current (vd - 12 v, rl - 100 m gate trigger voltage (vd - 12 vote, rl - 100 n> (vd - rated vdrm, rl - 1 ml. tj - 125"c) holding current otm - 0.5 a, gate-open) latching current (vd - 12 vdc, iq - 150 ma, tr * 60 /is) critical rate-of-rise of off-state voltage (vd - rated vqrm- gate open, exponential waveform, tc - 125c) turn-on time (note 3) (vd - rated vdrm. 'g = 150 ma) (itm " 70 amps, peak) mcr70 series otm ? 11 a?0*- pmk> mcr?1 mrlm symbol 'drm. irrm vtm 'gt vgt ih il dv/dt ton rnin ? " "? 2 0.2 3 ? 10 _ typ ? 1.5 1.7 6 7 10 1 15 30 ? 1 1.2 max 10 2 1.85 2-1 30 1.5 60 60 ? ? unit ^a ma volts ma volt* ma ma v//is ia notaa: 1. tha ratad vokagaa can ba appllad ovar tha ratad oparating junction tamparaturaa without incurring damaga. ratings apply for ihortad- opan or ahortad-gata condition or nagatlva vottaga on tha gata. davlcai should not ba taatad for blocking capability in a mannar luch that tha voltaga auppllad axcaadi tha ratad blocking vokagaa. 2. duty cyeta ? 1%, pulaa wmtti ? 300 to. 3. charactariatlc appll** for t^ - 1 ma. tw ia daflnad aa 6 tima conatanta of an axponantlallv daoaylng currant pulaa. 4. the gata oontrollad tum-on tima in a crowbar drcutt witl ba influancad by tha dreutt induetanea.
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