Data Sheet

FDH 400 / FDLL 400 — High Voltage General Purpose Diode
© 1997 Fairchild Semiconductor Corporation www.fairchildsemi.com
FDH 400 / FDLL 400 Rev. 1.1.0 1
April 2013
FDH 400 / FDLL 400
High Voltage General Purpose Diode
Absolute Maximum Ratings
(1)
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-
ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-
tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The
absolute maximum ratings are stress ratings only. Values are at T
A
= 25°C unless otherwise noted.
Note:
1. These ratings are limiting values above which the serviceability of the diode may be impaired.
These ratings are bansed on a maximum junction temperature of 200°C.
These are steady state limits. The factory should be consulted on applications involving pulsed or low duty
cycle operations.
Thermal Characteristics
Values are at T
A
= 25°C unless otherwise noted.
Symbol Parameter Value Units
W
IV
Working Inverse Voltage 150 V
I
O
Average Rectified Forward Current 200 mA
I
F
DC Forward Current 500 mA
i
f
Recurrent Peak Forward Current 600 mA
I
FSM
Non-repetitive Peak Forward Surge Current
Pulse Width = 1.0 s 1.0 A
Pulse Width = 1.0 μs4.0 A
T
STG
Storage Temperature Range -65 to +200 °C
T
J
Operating Junction Temperature 175 °C
Symbol Parameter
Max.
Units
FDH / FDLL 400
P
D
Power Dissipation 500 mW
Derate above 25°C 3.33 mW/°C
R
θJA
Thermal Resistance, Junction to Ambient 300 °C/W
LL-34
THE PLACEMENT OF THE EXPANSION GAP
HAS NO RELATIONSHIP TO THE LOCATION
OF THE CATHODE TERMINAL
LL-34 COLOR BAND MARKING
DEVICE
1ST BAND
DO-35
FDLL400 BLACK
Cathode is denoted with a black band
-1st band denotes cathode terminal
and has wider width
SOD80
Cathode Band