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UG4D

ULTRAFAST EFFICIENT PLASTIC RECTIFIER

General Semiconductor 

UG4A THRU UG4D

ULTRAFAST EFFICIENT PLASTIC RECTIFIER

Reverse Voltage - 50 to 200 Volts Forward Current - 4.0 Amperes

DO-201AD

0.210 (5.3)

0.190 (4.8)

DIA.

1.0 (25.4)

MIN.

0.375 (9.5)

0.285 (7.2)

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

♦ Soft recovery characteristics

♦ Excellent high temperature switching

♦ Glass passivated junction

♦ High temperature soldering guaranteed:

250°C/10 seconds, 0.375" (9.5mm) lead length,

5 lbs. (2.3kg) tension

0.052 (1.32)

0.048 (1.22)

DIA.

1.0 (25.4)

MIN.

Dimensions in inches and (millimeters)

MECHANICAL DATA

Case: JEDEC DO-201AD molded plastic body over

passivated chip

Terminals: Plated axial leads, solderable per MIL-STD-750,

Method 2026

Polarity: Color band denotes cathode end

Mounting Position: Any

Weight: 0.045 ounce, 1.2 grams

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25°C ambient temperature unless otherwise specified.

Maximum repetitive peak reverse voltage

Maximum RMS voltage

Maximum DC blocking voltage

Maximum average forward rectified current

0.375" (9.5mm) lead length at TL=75°C

Peak forward surge current

8.3 ms single half sine-wave superimposed

on rated load (JEDEC Method) at TL=75°C

Maximum instantaneous forward voltage at 4.0A

Maximum DC reverse current

at rated DC blocking voltage

TA=25°C

TA=100°C

Maximum reverse recovery time (NOTE 1)

Maximum reverse recovery time

(NOTE 2)

TJ=25°C

TJ =100°C

Maximum recovered stored charge

(NOTE 2)

TJ=25°C

TJ=100°C

Typical junction capacitance (NOTE 3)

Typical thermal resistance (NOTE 4)

Operating junction and storage temperature range

SYMBOLS

VRRM

VRMS

VDC

I(AV)

IFSM

VF

IR

trr

trr

Qrr

CJ

RΘJA

TJ, TSTG

UG4A

50

35

50

NOTES:

(1) Reverse recovery test conditions: IF=0.5A, IR=1.0A, Irr=0.25A

(2) trr and QRR measured at tester: IF=4.0A, VR=30V, di/dt=50A/µs, Irr=10% IRM for measurement of trr

(3) Measured at 1.0 MHZ and applied reverse voltage of 4.0 Volts

(4) Thermal resistance from junction to ambient at 0.375" (9.5mm) lead length

UG4B

100

70

100

UG4C

150

105

150

4.0

150.0

0.95

5.0

300.0

20.0

30.0

50.0

15.0

30.0

20.0

25.0

-55 to +150

UG4D

200

140

200

UNITS

Volts

Volts

Volts

Amps

Amps

Volts

µA

ns

ns

nC

pF

°C/W

°C

4/98

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