utc ut138ff/fg triac utc unisonic technologies co., ltd. 1 qw-r401-020,b triacs description glass passivated triacs in a full pack plastic envelope, intended for use in applications requiring high bidirectional transient and blocking voltage capability and high thermal cycling performance. typical applications include motor control, industrial and domestic lighting, heating and static switching. symbol mt2 mt1 g to-220f 1 1:mt1 2:mt2 3:gate absolute maximum ratings ( tj=25 c) parameter symbol rating unit repetitive peak off-state voltages ut138ff/fg-5 ut138ff/fg-6 ut138ff/fg-8 v drm 500* 600* 800 v rms on-state current (full sine wave, t hs 56 c) i t(rms) 12 a non-repetitive peak. on-state current (full sine wave, tj =1 25 c prior to surge, with reapplied vdrm(max) t=20ms t=16.7ms i tsm 90 100 a i 2 t for fusing (t=10ms) i 2 t 40 a 2 s repetitive rate of rise of on-state current after triggering (i tm =20a,i g =0.2a, di g /dt=0.2a/ s) t2+ g+ t2+ g- t2- g- t2- g+ di t /dt 50 50 50 10 a/ s peak gate voltage v gm 5 v peak gate current i gm 2 a peak gate power p gm 5 w average gate power (over any 20ms period) p g(av) 0.5 w operating junction temperature tj 125 c storage temperature tstg -40~150 c *although not recommended, off-state voltages up to 800v may be applied without damage, but the triac may switch to the on-state. the rate of rise of current should not exceed 15a/ s.
utc ut138ff/fg triac utc unisonic technologies co., ltd. 2 qw-r401-020,b isolation liniting value & characteristic (t hs =25 c,unless otherwise specified) parameter symbol min typ max unit r.m.s. isolation voltage form all three terminals to external heatsink (f=50-60hz, sinusoidal waveform r.h. Q 65%,clean and dustfree) visol 1500 v capacitance from mt2 to external heatsink (f=1mhz) cisol 12 pf thermal resistances parameter symbol min typ max unit thermal resistance, junction to heatsink (full or half cycle) with heatsink compound without heatsink compound rthj-hs 4.0 5.5 k/w thermal resistance, junction to ambient in free air rthj-a 55 k/w static characteristics (tj=25 c,unless otherwise specified) max parameter symbol conditions min typ ut138ff ut138fg unit gate trigger current i gt v d =12v, i t =0.1a t2+ g+ t2+ g- t2- g- t2- g+ 5 8 10 22 25 25 25 70 50 50 50 100 ma latching current i l v d =12v, i gt =0.1a t2+ g+ t2+ g- t2- g- t2- g+ 7 20 8 10 40 60 40 60 60 90 60 90 ma holding current i h v d = 12 v, i gt = 0.1 a 6 30 60 ma on-state voltage v t i t =15a 1.4 1.65 v v d =12v, i t =0.1a 0.7 1.5 v gate trigger voltage v gt v d =400v, i t =0.1a, tj=125 c 0.25 0.4 v off-state leakage current i d v d =v drm(max) , tj=125 c 0.1 0.5 ma dynamic characteristics (tj=25 c,unless otherwise specified) min parameter symbol conditions ut138ff ut138fg typ max unit critical rate of change of off-state voltage dv d /dt v dm = 67% v drm(max) , t j =125c; exponential waveform, gate open circuit 100 200 250 v/s critical rate of change of commutating voltage dv com /dt v dm =400v;t j =95c,i t(rms) =12a; di com /dt =5.4a/ms, gate open circuit 20 v/s gate controlled turn-on time t gt i tm =16 a, v d = v drm(max) , i g =0.1a; di g /dt=5a/s 2 s
utc ut138ff/fg triac utc unisonic technologies co., ltd. 3 qw-r401-020,b typical characteristics figure 2. maximum permissible non-repetitive peak on-state current i tsm ,vs pulse width t p ,for sinusoidal currents,t p Q 20ms figure 1.maximum on -state dissipation.ptot vs rms on-state current,i t(rms) ,where =conduction angle. figure 4.maximum permissible rms current i t(rms) vs heatsinktemperature t hs it(rms)/a itsm/a surge duration /s figure 5.maximum permissible repetitive rms on-state current it(rms),vs surge duration,for sinusoidal currents,f=50hz;t hs Q 56 it(rms)/a number of cycles at 50hz figure 3 .maximum permissible non-repetitive peak on-state current i tsm ,vs number of cycles, for sinusoidal currents,f=50hz itsm/a 1000 ptot/w 510 0 20 5 15 0 15 10 45 105 65 125 85 t hs (max)/c =180 =120 =90 =60 =30 it(rms)/a 100 150 -50 50 0 15 5 t hs / 10 0 56 1ms 100us 10us 1000 t/s 10 100 10ms 100ms i t i tsm time tj initial=25 max di t /dt limit t2-g+ quadrant t 25 10 15 20 5 0 0.1 1 10 0.01 100 40 80 60 20 0 10 100 1 i t time i tsm tj initial=25 max t 100 150 -50 50 0 1.6 0.8 tj/ 1.2 1.4 1 0.6 0.4 figure 6.normalised gate trigger voltage v gt (tj)/ v gt (25 ),vs junction temperature tj v gt (25 ) v gt (tj )
utc ut138ff/fg triac utc unisonic technologies co., ltd. 4 qw-r401-020,b vt/v figure 10.typical and maximum on-state characteristic figure 7.normalised gate trigger current i gt (tj)/i gt (25 ),vs junction temperature tj 100 150 -50 50 0 3 1 tj/ 2 2.5 1.5 0.5 0 figure 8.normalised latching current i l (tj)/i l (25 ),vs junction temperature tj i l (25 ) i l (tj ) 100 150 -50 50 0 3 1 tj/ 2 2.5 1.5 0.5 0 figure 9.normalised holding current i h (tj)/i h (25 ),vs junction temperature tj i h (25 ) i h (tj ) tj/ figure 12.typical,critical rate of rise of off-state voltage, dv d /dt versus junction temperature tj dv/dt(v/us) 1.5 2 01 0.5 40 30 20 10 0 it/a 2.5 3 typ max vo=1.175v rs=0.0316 ohms figure 11.transient thermal impedance zth j-hs,vs pulse w idth tp 1ms 0.1ms 10us tp/s 0.001 0.01 10ms 0.1s 1s 10s 1 10 tp t p d bidirectional unidirectional zth j-hs (k/w ) with heatsink compound without heatsink compound 100 150 50 0 1000 10 100 1 ut138fg ut138ff off-state dv/dt limit 12 5.4 7 4.2 9.1 dlcom/dt=15a/ ms tj=125 tj=25 0.1 i gt (25 ) i gt (tj ) 100 150 -50 50 0 3 1 tj/ 2 2.5 1.5 0.5 0 t2+g+ t2+g- t2-g- t1-g+
utc ut138ff/fg triac utc unisonic technologies co., ltd. 5 qw-r401-020,b utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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