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PRELIMINARY
Solid State Devices, Inc.
14701 Firestone Blvd * La Mirada, Ca 90638
Phone: (562) 404-4474 * Fax: (562) 404-1773
ssdi@ssdi-power.com * www.ssdi-power.com
Designer’s Data Sheet
Part Number / Ordering Information 1/
SRM__ HF __ __
└ Screening2/
__ = Not Screened
TX = TX Level
TXV = TXV
S = S Level
│
└ Package Type
__ = Axial
SMS = Surface Mount Square Tab
BTR = Button
│
└ Voltage
3 = 300 V
4 = 400 V
SRM3HF thru SRM4HF
Series
20 AMP
300-400 Volts
40 nsec
Hyper Fast Rectifier
Features:
Replaces DO-4 and DO-5 (1N5816,1N6306)
High Current/ Voltage Version of 1N5811
Hyper Fast Recovery
PIV to 400 Volts
Low Reverse Leakage Current
Hermetically Sealed Void-Free Construction3/
Monolithic Single Chip Construction
High Surge Rating
Low Thermal Resistance
Available in Surface Mount Versions
Equivalent to 1N6688-1N6689
TX, TXV, and Space Level Screening Available
MAXIMUM RATINGS
Symbol
Value
Units
Peak Repetitive Reverse Voltage and
DC Blocking Voltage
SRM3HF
SRM4HF
VRRM
VRWM
VR
300
400
Volts
Average Rectified Forward Current
(Resistive Load, 60Hz Sine Wave, TA=25C)
IO
20
Amps
Peak Surge Current
(8.3 ms Pulse, Half sine Wave Superimposed on Io, Allow Junction to Reach Equilibrium Between
Pulses, TA=25
oC)
IFSM
475
Amps
Operating and Storage Temperature
Top & Tstg
-65 to +175
oC
Maximum Thermal Resistance
(Axial – Junction to Lead, L=3/8”)
(SMS – Junction to End Tab)
(Button – Junction to Case)
Axial ( )
Square Tab (SMS)
Button (BTR)
RθJL
RθJE
RθJC
3.0
2.5
1.0
oC/W
Notes:
1/ For ordering information, price, operating curves, and availability, contact factory.
2/ Modified MIL-PRF-19500 Screening Flow – Consult Factory.
3/ PIND testing not required on void free devices per MIL-PRF-19500.
Axial
SMS
Button
NOTE: All specifications are subject to change without notification.
SCD's for these devices should be reviewed by SSDI prior to release.
DATA SHEET #: RH0165F
DOC