BAW78B
BAW78B is Silicon Switching Diodes manufactured by Infineon.
BAW78A...BAW78D
Silicon Switching Diodes
Switching applications High breakdown voltage
1 2 3
VPS05162
2 1
EHA07007
Type BAW78A BAW78B BAW78C BAW78D Maximum Ratings Parameter Diode reverse voltage Peak reverse voltage
Forward current Peak forward current
Marking GA GB GC GD 1=A 1=A 1=A 1=A
Pin Configuration 2=C 2=C 2=C 2=C 3 = n.c. 3 = n.c. 3 = n.c. 3 = n.c.
Package SOT89 SOT89 SOT89 SOT89
Symbol VR VRM
IF IFM IFS Ptot Tj Tstg
BAW 78A 50 50
BAW 78B 100 100
1 1 10 1
BAW 78C 200 200
BAW 78D 400 400
Unit V
Surge forward current, t = 1 s Total power dissipation , TS = 125 °C Junction temperature Storage temperature
W °C
150 -65 ... 150
Thermal Resistance Junction
- soldering point1) Rth JS
25
K/W
1For calculation of R th JA please refer to Application Note Thermal Resistance
Aug-20-2001
BAW78A...BAW78D
Electrical Characteristics at TA = 25 °C, unless otherwise specified. Symbol Values Parameter min. DC characteristics Breakdown voltage I(BR) = 100 µA BAW78A BAW78B BAW78C BAW78D Forward voltage IF = 1 A IF = 2 A Reverse current VR = VRmax Reverse current VR = VRmax , TA = 150 °C
AC characteristics Diode capacitance VR = 0 V, f = 1 MHz Reverse recovery time IF = 200 m A, IR = 200 m A, RL = 100 , measured at IR = 20m A trr 1 CD 10
- Unit max. V typ.
V(BR) 50 100 200 400 VF IR IR 1.6 2 1 50
- µA p F µs
Test circuit for reverse recovery...