bd743, bD743A, bd743b, bd743c npn silicon power transistors
1 august 1978 - revised september 2002 specifications are subject to change without notice. designed for complementary use with the bd744 series 90 w at 25c case temperature 15 a continuous collector current 20 a peak collector current customer-specified selections available absolute maximum ratings at 25c case temperature (unless otherwise noted) notes: 1. this value applies for t p 0.3 ms, duty cycle 10%. 2. derate linearly to 150c case temperature at the rate of 0.72 w/c. 3. derate linearly to 150c free air temperature at the rate of 16 mw/c. 4. this rating is based on the capability of the transistor to operate safely in a circuit of: l = 20 mh, i b(on) = 0.4 a, r be = 100 ? , v be(off) = 0, r s = 0.1 ? , v cc = 20 v. rating symbol value unit collector-base voltage (i e = 0) bd743 bD743A bd743b bd743c v cbo 50 70 90 110 v collector-emitter voltage (i b = 0) bd743 bD743A bd743b bd743c v ceo 45 60 80 100 v emitter-base voltage v ebo 5v continuous collector current i c 15 a peak collector current (see note 1) i cm 20 a continuous base current i b 5a continuous device dissipation at (or below) 25c case temperature (see note 2) p tot 90 w continuous device dissipation at (or below) 25c free air temperature (see note 3) p tot 2w unclamped inductive load energy (see note 4) ?li c 2 90 mj operating free air temperat ure r ange t a -65 to +150 c operating junction temperature range t j -65 to +150 c storage temperature range t stg -65 to +150 c lead temperature 3.2 mm from case for 10 seconds t l 250 c b c e to-220 package (top view) pin 2 is in electrical contact with the mounting base. mdtraca 1 2 3
bd743, bD743A, bd743b, bd743c npn silicon power transistors 2
august 1978 - revised september 2002 specifications are subject to change without notice. notes: 5. these parameters must be measured using pulse techniques, t p = 300 s, duty cycle 2%. 6. these parameters must be measured using voltage-sensing contacts, separate from the current carrying conta cts. ? voltage and current values shown are nominal; exact values vary slightly with transistor parameters. electrical characteristics at 25c case temperature (unless otherwise noted) parameter test conditions min typ max unit v (br)ceo collector-emitter breakdown voltage i c = 30 ma i b = 0 (see note 5) bd743 bD743A bd743b bd743c 45 60 80 100 v i cbo collector cut-off current v ce = 50 v v ce = 70 v v ce = 90 v v ce =110 v v ce = 50 v v ce = 70 v v ce = 90 v v ce =110 v v be =0 v be =0 v be =0 v be =0 v be =0 v be =0 v be =0 v be =0 t c = 125c t c = 125c t c = 125c t c = 125c bd743 bD743A bd743b bd743c bd743 bD743A bd743b bd743c 0.1 0.1 0.1 0.1 5 5 5 5 ma i ceo collector cut-off current v ce = 30 v v ce = 60 v i b =0 i b =0 bd743/743a bd743b/743c 0.1 0.1 ma i ebo emitter cut-off current v eb = 5 v i c =0 0.5 ma h fe forward current transfer ratio v ce = 4 v v ce = 4 v v ce = 4 v i c = 1a i c = 5a i c =15a (see notes 5 and 6) 40 20 5 150 v ce(sat) collector-emitter saturation voltage i b = 0.5 a i b = 5 a i c = 5a i c = 15 a (see notes 5 and 6) 1 3 v v be base-emitter voltage v ce = 4 v v ce = 4 v i c = 5 a i c =15 a (see notes 5 and 6) 1 3 v h fe small signal forward current transfer ratio v ce = 10 v i c = 1a f = 1 khz 25 | h fe | small signal forward current transfer ratio v ce = 10 v i c = 1a f = 1 mhz 5 thermal characteristics parameter min typ max unit r jc junction to case thermal resistance 1.4 c/w r ja junction to free air thermal resistance 62.5 c/w resistive-load-switching characteristics at 25c case temperature parameter test conditions ? min typ max unit t d delay time i c = 5 a v be(off) = -4.2 v i b(on) = 0.5 a r l = 6 ? i b(off) = -0.5 a t p = 20 s, dc 2% 20 ns t r rise time 350 ns t s storage time 500 ns t f fall time 400 ns
bd743, bD743A, bd743b, bd743c npn silicon power transistors 3
august 1978 - revised september 2002 specifications are subject to change without notice. typical characteristics figure 1. figure 2. figure 3. typical dc current gain vs collector current i c - collector current - a 01 10 10 100 h fe - dc current gain 10 100 tcs637aa v ce = 4 v t p = 300 s, duty cycle < 2% t c = 125c t c = 25c t c = -55c collector-emitter saturation voltage vs collector current i c - collector current - a 01 10 10 100 v ce(sat) - collector-emitter saturation voltage - v 001 01 10 10 tcs637ab t c = -55c t c = 25c t c = 125c t p = 300s, duty cycle < 2% i c i b = 10 base-emitter voltage vs collector current i c - collector current - a 01 10 10 100 v be - base-emitter voltage - v 01 10 10 tcs637ac v ce = 4 v t p = 300s, duty cycle < 2% t c = -55c t c = 25c t c = 125c
bd743, bD743A, bd743b, bd743c npn silicon power transistors 4
august 1978 - revised september 2002 specifications are subject to change without notice. maximum safe operating regions figure 4. thermal information figure 5. maximum forward-bias safe operating area v ce - collector-emitter voltage - v 10 10 100 1000 i c - collector current - a 001 01 10 10 100 sas637aa bd743 bD743A bd743b bd743c t p = 1 ms, d = 0.1 = 10% t p = 10 ms, d = 0.1 = 10% t p = 50 ms, d = 0.1 = 10% dc operation maximum power dissipation vs case temperature t c - case temperature - c 0 25 50 75 100 125 150 p tot - maximum power dissipation - w 0 10 20 30 40 50 60 70 80 90 100 tis637aa
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