8700 e. thomas road
scottsdale, az 85252
( 48 0 ) 941-6300 case: molded plastic, meets ul 94v-o polarity: cathode marked with + inductance: less than 20 nh terminals: corrosion resistant with hole spacings to accommodate most high power igbts igb tvs tm ac line transient voltage suppressor (for igbt protection) n santa ana: (714) 979-8220 n scottscale: (602) 941-6300 n colorado: (303) 469-2161 n watertown: (617) 926-0404 n chatsworth: (818) 701-4933 n sertech labs: (617) 924-9280 n ireland: (353) 65-40044 n bombay: (91) 22-832-002 n hong kong: (852) 2692-1202 features protects from load switching in ac applications for 120vac, 240vac and 440vac circuits fits terminal spacing on most igbts fast clamping ?subnanosecond these devices will protect your igbt in applications where it is used in overload protection or switching ac loads. transient voltages produced when switching occurs in the positive one-half of the cycle are clamped below the destruct level of the igbt. unique low inductance shunt path virtually eliminates l(di/dt) effects. available as screened device for high reliability applications. includes burn-in and environmental tests. maximum ratings @ 25? 60kw peak pulse power dissipation for 120v @ 1.2/50? 120kw peak pulse power dissipation for 240v @ 1.2/50? 240kw peak pulse power dissipation for 440v @ 1.2/50? operating and storage -55? to +150? shunt path inductance < 20nh duty cycle ?.01% max. electrical characteristics @ 25? msc
igbt d 1.00
2.54 0.5
1.25
0.5
1.25
.375
.952
2.00
5.08 + hole to
fit 8mm
dia. stud dimensions: inches/centimeters d ?terminals accommodate
23 -28 mm spacing ac rms reverse breakdown maximum maximum maximum microsemi operating stand-off voltage reverse clamping peak pulse part no. voltage note 1 min / max leakage voltage current nominal (v wm )(v br ) note 2 (i d )(v c )(i pp ) note 3 vac vdc v a v a dma12 120 175 200 / 225 5 280 200 dma24 240 350 400 / 450 5 560 200 dma44 440 640 735 / 900 5 1120 200 notes: 1.will withstand high-line conditions of 15% above nominal voltage. 2.test current @ 10 ma. 3.pulse waveform 1.2 / 50 ?. data sheet msc0294a 6/3/97
application notes for igb tvs tm microsemi s igb tvs tm protector is intended for transients produced during load switching with a duty cycle not to exceed .01%. for protecting against transients produced when igbts are applied as ac power switches and over current protectors. stored energy in the line and load produces damaging transient voltages during power down or fault interrupt. microsemi s igb tvs tm transient suppressor protects from nanosecond rise transients with surge currents to 200a, 1.5/50?. typical application on a 3 b power line is illustrated below. each control module contains igbts,
gate drive and two igb tvs tm as
illustrated by #2 above 3.?omposite 3 phase protection b 1 b 2 ac in line r & l line r & l line r & l b 3 load 2.?etails of single phase protection gate drive igbt ac
line
in igbt igb tvs tm load control
module line r & l 1.?oncept ac power from
service entry to
load tvs igbt line r & l
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