BUX28 SIEMENS | Alldatasheet
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25C D MM 4235605 0004854 1 MMSIEG . T-33-29 NPN Silicon Darlington Power Transistor BUX 28 BUX 28 is a triple diffused monolithic NPN darlington power transistor in TO 3 case : (3 A 2 DIN 41872). The collector is electrically connected to the case. The resistor between | base and emitter as wall as the inverting diode are integrated. 2] BUX 28 is particularly suitable for use in firing circuits of cars and for general purpose 8] switching applications at high voltages. : ©| Type Ordering code | aie $ 1
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Mica washer Q62901-B11-A i Insulating nipple | Q62901-B50 I. Tak | ' PL tay 4 [on a E O42max B ont a r EE $2 os" T ga 1 ; se ft R Se ya: he am nh Acyl s 2 s EY cls 109 - os ' 128 195 be énor "asso - 1 eye Eee al ~ 78,2" = See Approx. weight 18 g Dimensions in mm: ‘Mica washer dry: Rth = 1.25 K/W Insulating nipple greased: Rth = 0.35 K/W Maximum ratings Collector-emitter voltage Veco 350 v Collector-emitter voltage Veer 350 ‘|v Collector current Ig 8 A Collector peak current (fp<1 ms) Tosa 12 A Current of the inverse diode =Ig 8 A Base current Ig 15 A Junction temperature Tj 176 °c Total power dissipation (Tease $55 °C) Prot 80 w Thermal resistance Junction to case Rebuc | <1.2 | Kw soo - 2216 0-13
25C ) MM 6235b05 OOO4RSS 3 MMSIEG : SIEMENS AKTIENGESELLSCHAF. 1-33-29 _ BUX 28 Static characteristics (7.55, = 25°C) Collector-emitter breakdown voltage Uc = 100 mA; L = 25 mH) Venceo | >350 v Collector cutoff current Tceo <1 mA Collector cutoff current (Vce = 350 V) Tceo <1 mA (Vee = 350 V, Tease = 125°C; tp < 200 1s) Ices <10 mA DC current gain (Ig =7 A; Veg = 1.5 V) hee >10 - Collector-emitter saturation voltage (Ig = 10 A; Ig = 0.25 A) Veeset <2 v Base-emitter saturation voltage Uc = 10 A; Ig = 0.25 A) Vecsat <24 v . Forward voltage of the inverse diode (Ig =7 A; Ig = 0) “Vee 15 Vv * AQL = 0.65% Total perm. power dissipation Permissible operating range ee eere te ameter To =F Vee); Tease * 55°C3¥ =O eS oA ERATE Sa\\\\Soen8 1 CONN COENT oe LEANN x | eH EH NeH oe NWI
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