Dated : 20/06/2003
SEMTECH ELECTRONICS LTD.
(Subsidiary of Semtech International Holdings Limited, acompany
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
SFR151 THRU SFR157
SOFT FAST RECOVERY RECTIFIERS
Reverse Voltage – 50 to 1000 Volts
Forward Current – 1.5 Amperes
Features
• Low forward voltage drop.
• High current capability.
• High reliability.
• High surge current capability.
• Fast switching for high efficiency.
Mechanical Data
• Cases: Molded plastic
• Lead: Axial leads, solderable per MIL-STD-202,
Method 208 guaranteed.
• Polarity: Color band denotes cathode end
• High temperature soldering guaranteed:
250oC/10 seconds/ 0.375”, (9.5mm) lead
lengths at 5 Ibs., (2.3kg) tension
Absolute Maximum Ratings and Characteristics
Rating at 25
oC ambient temperature unless otherwise specified. Single-phase, half wave, 60Hz, resistive or inductive
load. For capacitive load, derate current by 20%.
Symbols
SFR
151
SFR
152
SFR
153
SFR
154
SFR
155
SFR
156
SFR
157
Units
Maximum recurrent peak reverse voltage
VRRM
50
100
200
400
600
800
1000
V
Maximum RMS voltage
VRMS
35
70
140
280
420
560
700
V
Maximum DC blocking voltage
VDC
50
100
200
400
600
800
1000
V
Maximum average forward rectified current
0.375”(9.5mm) lead length at TA = 55
OC
I(AV)
1.5
A
Peak forward surge current ,
8.3mS single half sine-wave superimposed
on rated load (JEDEC method)
IFSM
50
A
Maximum instantaneous forward voltage @ 1.5A
VF
1.2
V
Maximum DC reverse current
@ TA = 25
OC
at rated DC blocking voltage
@ TA = 75
OC
IR
IR
5
100
µA
µA
Maximum reverse recovery time (Note 1)
Trr
120
200
350
nS
Typical junction capacitance (Note 2)
CJ
30
pF
Operating temperature range
TJ
-65 to +150
OC
Storage temperature range
TS
-65 to +150
OC
Note: (1) Reverse recovery test conditions: IF = 0.5A, IR = 1A , IRR = 0.25A.
(2) Measured at 1 MHz and applied reverse voltage of 4 Volts D.C.