Datasheet

2007-04-20
2
BAW78.../BAW79...
Thermal Resistance
Parameter Symbol Value Unit
Junction - soldering point
1)
BAW78D
BAW79D
R
thJS
≤ 25
≤ 35
K/W
Electrical Characteristics at T
A
= 25°C, unless otherwise specified
Parameter
Symbol Values Unit
min. typ. max.
DC Characteristics
Breakdown voltage
I
(BR)
= 100 µA
V
(BR)
400 - - V
Reverse current
V
R
= 400 V
V
R
= 400 V, T
A
= 150 °C
I
R
-
-
-
- 1
50
µA
Forward voltage
I
F
= 1 A
I
F
= 2 A
V
F
-
-
-
-
1.6
2
V
AC Characteristics
Diode capacitance
V
R
= 0 V, f = 1 MHz
C
T
- 10 - pF
Reverse recovery time
I
F
= 200mA, I
R
= 200mA, measured at I
R
= 20mA ,
R
L
= 100Ω
t
rr
- 1 - µs
Test circuit for reverse recovery time
EHN00019
Ι
F
D.U.T.
Oscillograph
Puls generator: t
p
= 10µs, D = 0.05,
t
r
= 0.6ns, R
i
= 50Ω
Oscillograp: R = 50Ω, t
r
= 0.35ns
C ≤ 1pF
1
For calculation of R
thJA
please refer to Application Note Thermal Resistance