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
O
Ratings at 25 C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or
inductive load. For capacitive load, derate current by 20%.
UF4001 UF4002 UF4003 UF4004 UF4005 UF4006 UF4007
Parameter
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Symbols
Units
V
VRRM
50
35
50
100
70
200
140
200
400
280
400
600
420
600
800
560
800
1000
700
VRMS
VDC
V
V
100
1000
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current 0.375"(9.5mm)
Lead Length at TA = 55 OC
1
A
I(AV)
IFSM
Peak Forward Surge Current, 8.3 ms Single Half-sine -wave
Superimposed on Rated Load (JEDEC Method)
30
A
V
Maximum Forward Voltage at 1 A DC
1
1.7
VF
IR
TA = 25 OC
TA = 100OC
5
Maximum Reverse Current
µA
500
at Rated DC Blocking Voltage
Typical Junction Capacitance 1)
Typical Thermal Resistance 2)
Maximum Reverse Recovery Time 3)
CJ
RθJA
trr
17
60
pF
OC/W
ns
50
75
TJ ,TS
-55 to +150
OC
Operating and Storage Temperature Range
1) Measured at 1 MHz and applied reverse voltage of 4 V DC.
2)
0.375"(9.5mm)
Thermal resistance junction to ambient and from juntcion to lead at
lead length P.C.B mounted.
3) Reverse recovery test conditions: IF = 0.5 A, IR = 1 A, Irr = 0.25 A.
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Dated : 12/04/2006
H