Dated : 12/04/2006
H
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
UF4001 THRU UF4007
ULTRAFAST RECOVERY RECTIFIERS
Reverse Voltage – 50 to 1000 V
Forward Current – 1 A
Features
• Plastic package has Underwriters Laboratories
Flammability Classification 94V-0
• Ideally suited for use in very high frequency switching
power supplies, inverters and as free wheeling diodes
• Ultrafast recovery time for high efficiency
• Excellent high temperature switching
• Soft recovery characteristics
Mechanical Data
• Case: molded plastic, DO-41
• Epoxy: UL 94V-0 rate flame retardant
• Lead: Axial leads, solderable per MIL-STD-202,
Method 208 guaranteed
• Polarity: Color band denotes cathode end
• Mounting Position: Any
Absolute Maximum Ratings and Characteristics
Ratings at 25 OC ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or
inductive load. For capacitive load, derate current by 20%.
Parameter
Symbols UF4001 UF4002 UF4003 UF4004 UF4005 UF4006 UF4007
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
A
Peak Forward Surge Current, 8.3 ms Single Half-sine -wave
Superimposed on Rated Load (JEDEC Method)
IFSM
30
A
Maximum Forward Voltage at 1 A DC
VF
1
1.7
V
Maximum Reverse Current
TA = 25
OC
at Rated DC Blocking Voltage
TA = 100
OC
IR
5
500
µA
Typical Junction Capacitance
1)
CJ
17
pF
Typical Thermal Resistance
2)
RθJA
60
OC/W
Maximum Reverse Recovery Time
3)
trr
50
75
ns
Operating and Storage Temperature Range
TJ ,TS
-55 to +150
OC
1) Measured at 1 MHz and applied reverse voltage of 4 V DC.
2) Thermal resistance junction to ambient and from juntcion to lead at 0.375"(9.5mm) lead length P.C.B mounted.
3) Reverse recovery test conditions: I
F = 0.5 A, IR = 1 A, Irr = 0.25 A.
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