S494D Datasheet, PDF (1/3 Pages) Vishay Siliconix – Fast Soft Recovery Rectifier

Fast Soft Recovery Rectifier
Features
D Hermetically sealed axial–leaded
glass envelope
D Glass passivated
D Very low reverse current
D Soft recovery characteristics
S494D
Vishay Telefunken
Applications
Switched–mode power supplies
High–frequency inverter circuits
Electronic ballast
95 10526
Absolute Maximum Ratings
T_j = 25_C
Parameter
Reverse voltage
=Repetitive peak reverse voltage
Peak forward surge current
Average forward current
Junction and storage temperature range
Test Conditions
t_p=8.3ms, half–sinewave
l= 10mm, T_amb=38°C
Type Symbol Value Unit
V_R
600
V
=V_RRM
I_FSM
30
A
I_FAV
1.25
A
T_j=T_stg –65...+175 °C
Maximum Thermal Resistance
T_j = 25_C
Parameter
Test Conditions
Junction ambient
lead length l = 10mm, T_L = constant
Symbol
Value
Unit
R_thJA
60
K/W
Electrical Characteristics
T_j = 25_C
Parameter
Test Conditions
Forward voltage
Reverse current
Reverse recovery time
I_F=1A
V_R=V_RRM
V_R=V_RRM, T_j=150°C
I_F=0.5A, I_R=1A, i_R=0.25A
Type Symbol Min Typ Max Unit
V_F
1.3 V
I_R
500 nA
I_R
150 mA
t_rr
200 ns
Document Number 86058
Rev. 2, 24-Jun-98
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