baw 79a ... baw 79d oct-08-1999 1 silicon switching diodes ? switching applications ? high breakdown voltage ? common cathode 2 1 3 vps05162 2 eha07003 1 2 3 type marking pin configuration package baw 79a baw 79b baw 79c baw 79d ge gf gg gh 1 = a1 1 = a1 1 = a1 1 = a1 2 = c1/2 2 = c1/2 2 = c1/2 2 = c1/2 3 = a2 3 = a2 3 = a2 3 = a2 sot-89 sot-89 sot-89 sot-89 maximum ratings parameter symbol baw 79 c baw 79 d baw 79 b baw 79 a unit v r 50 100 v diode reverse voltage 400 200 50 100 200 400 peak reverse voltage v rm 1 a forward current i f peak forward current 1 i fm surge forward current, t = 1 s i fs 10 1 w total power dissipation , t s = 115 c p tot c t j junction temperature 150 storage temperature t st g -65 ... 150 thermal resistance junction - ambient 1) 175 k/w r thja r thjs 35 junction - soldering point 1) package mounted on epoxy pcb 40mm x 40mm x 1.5mm / 6cm 2 cu
baw 79a ... baw 79d oct-08-1999 2 electrical characteristics at t a = 25c, unless otherwise specified. parameter symbol values unit typ. max. min. dc characteristics v - - - - breakdown voltage i (br) = 100 a v (br) - - - - 50 100 200 400 baw 79a baw 79b baw 79c baw 79d 1.6 2 v f - - forward voltage i f = 1 a i f = 2 a - - 1 a - - i r reverse current v r = v rmax 50 reverse current v r = v rmax , t a = 150 c i r - - ac characteristics pf - - 10 c d diode capacitance v r = 0 v, f = 1 mhz s reverse recovery time i f = 200 ma, i r = 200 ma, r l = 100 ? , measured at i r = 20ma t rr - 1 - test circuit for reverse recovery time ehn00019 f d.u.t. oscillograph pulse generator: t p = 100ns, d = 0.05, t r = 0.6ns, r i = 50 ? oscillograph: r = 50 ? , t r = 0.35ns, c 1pf
baw 79a ... baw 79d oct-08-1999 3 forward current i f = f ( v f ) t a = 25c 0 ehb00099 baw 79a...d v f f 1v2 10 -2 -3 10 -1 10 0 10 1 10 a forward current i f = f ( t a *; t s ) * package mounted on epoxy 0 0.0 ehb00098 baw 79a...d f a t ; t s 50 100 ?c 150 t as t 0.4 0.8 1.0 1.2 0.6 0.2 a peak forward current i fm = f ( t p ) t a = 25c ehb00100 -6 10 baw 79a...d 10 -5 10 -4 10 -3 10 -2 10 -1 10 0 s 10 10 -2 -1 fm a 10 10 0 1 10 2 t = 0.005 d 0.01 0.2 0.1 0.02 0.05 t t p t = d t p reverse current i r = f ( t a ) v r = v rmax baw 79a...d ehb00101 max typ 5 10 10 5 1 2 10 10 5 r 3 4 10 na 5 0 50 100 t a ? c 150
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