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UG4A Datasheet, PDF (2/7 Pages) General Semiconductor – ULTRAFAST EFFICIENT PLASTIC RECTIFIER
UG4A thru UG4D
2.Ratings and Characteristic Curves ( TA = 25°C unless otherwise noted )
Fig. 1 – Forward Current Derating Curve
Fig. 2 – Maximum Non-repetitive Peak
Forward Surge Current
400
60 Hz
TJ = TJ max
Resistive or
8.3ms Single Half Sine-wave
4.0
Inductive Load
200
(JEDEC Method)
2.0
0.375" (9.5mm) Lead Length
0
0 25 50 75 100 125 150 175
Ambient Temperature, °C
Fig 3. – Typical Instantaneous Forward
100
Characteristics
10
1.0
0.1
TJ = 25°C
Pulse width = 300µs
1% Duty Cycle
0.01
0.6 0.8 1.0 1.2 1.4 1.6
Instantaneous Forward Voltage (V)
Fig 5. –typical transient thermal
impedance
100
10
1.0
0.1
0.01 0.1
1.0
10
100
t,Pulse duration,sec
20
0
10
100
Number of Cycles at 60Hz
Fig 4. – Typical Reverse Characteristics
1000
100
Tj=100℃
Tj=75 ℃
10
1.0
Tj=25℃
0.1
0
20 40
60 80 100
Percent of Rated Peak Reverse Voltage (%)
Fig 6. – Typical Junction Capacitance
100
TJ = 25°C
f = 1.0 MHz
Vsig = 50mVp-p
10
1
0 10 20 30 40 50
Reverse Voltage (V)