UF304 / UF308
3A Ultra Fast Switching Rectifiers
Page 1
24/10/05 V1.0
High Efficiency
Features:
• Fast reverse recovery time, trr.
• Low forward voltage, VF.
• Low cost axial packages.
• Void-free plastic in DO-201AD package.
• 3.0 Ampere operation at TA = 55°C with no thermal runaway.
• Exceeds environmental standards of MIL-S-19500/228.
• Ultra fast switching for high efficiency.
DO-201AD
Maximum Ratings and Electrical Characteristics:
Ratings at 25°C ambient temperature unless otherwise specified.
Resistive or inductive load, 60Hz.
Dimensions : Inches (Millimetres)
Mechanical Data:
Case
: Moulded plastic.
Terminals
: Axial leads, solderable per MIL-STD-202,
Method 208.
Polarity
: Band denotes cathode.
Mounting Position
: Any.
Parameters
UF304
UF308
Units
Peak reverse voltage, repetitive; VRM
400
800
V
Maximum RMS voltage
280
560
DC blocking voltage; VR
400
800
Average forward current, Io at TA = 55°C 3.8”
lead length, 60Hz, resistive or inductive load
3.0
A
Peak forward surge current IFM (surge) 8.3m seconds
single half sine-wave superimposed on rated load (JEDEC method)
150
Maximum forward voltage VF at 3.0A, 25°C
1.1
1.7
V
Maximum reverse current at rated
TJ = 25°C
reverse voltage
TJ = 100°C
10.0
500
mA
mA
Typical junction capacitance (Note 1) CJ
75
50
pF
Typical junction resistance (Note 2) R
θJA
20.0
°C/W
Reverse recovery time IF = 0.5A, IR = 1A, Irr = 0.25A
50
75
ns
Operating and storage temperature range
-55 to +150
°C
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