USF31-USF34
Super Fast Rectifiers
VOLTAGE RANGE: 50 --- 200 V
CURRENT: 3.0 A
DO - 27
Features
Low cost
Low leakage
Low forward voltage drop
High current capability
Easilycleaned with alcohol,Isopropanol
and similar solvents
The plastic material carries U/L recognition 94V-0
Mechanical Data
Case:JEDEC DO--27,molded plastic
Terminals: Axial lead ,solderable per
MIL- STD-202,Method 208
Dimensions in millimeters
Polarity: Color band denotes cathode
Weight: 0.041 ounces,1.15 grams
Mounting position: Any
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 ambient temperature unless otherwise specified.
Single phase,half wave,60Hz,resistive or inductive load. For capacitive load,derate by20%.
USF31
USF32
USF33
USF34
UNITS
Maximumrecurrent peak reverse voltage
Maximum RMS voltage
50
35
50
100
70
150
105
150
200
140
200
V
V
V
VRRM
VRMS
VDC
Maximum DC blocking voltage
100
Maximumaverage forw ard rectified current
3.0
A
IF(AV)
9.5mmlead length,
@TA=75
Peak forw ard surge current
IFSM
125.0
0.92
A
8.3ms single half-sine-w ave
superimposed on rated load @TJ=125
Maximuminstantaneous forw ard voltage
@ 3.0A
VF
IR
V
A
Maximum reverse current
@TA=25
10.0
500.0
20
at rated DC blocking voltage @TA=100
Maximumreverse recovery time (Note1)
ns
pF
/W
trr
CJ
Typical junction capacitance
Typical thermal resistance
(Note2)
(Note3)
20
20
RθJA
TJ
Operating junction temperature range
- 55 ----- + 150
- 55 ----- + 150
Storage temperature range
TSTG
NOTE: 1. Measured with IF=0.5A, IR=1A, Irr=0.25A.
2. Measured at 1.0MHz and applied rev erse v oltage of 4.0V DC.
3. Thermal resistance from junction to ambient.
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