UG4A THRU UG4D

ULTRAFAST EFFICIENT PLASTIC RECTIFIER

Reverse Voltage - 50 to 200 Volts

Forward Current - 4.0 Amperes

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

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.

SYMBOLS

UG4A

UG4B

UG4C

UG4D

UNITS

Maximum repetitive peak reverse voltage

50

100

150

200

Volts

Maximum RMS voltage

35

70

105

140

Volts

Maximum DC blocking voltage

50

100

150

200

Volts

Maximum average forward rectified current

4.0

Amps

Peak forward surge current

8.3 ms single half sine-wave superimposed

150.0

Amps

Maximum instantaneous forward voltage at 4.0A

0.95

Volts

Maximum DC reverse current

5.0

at rated DC blocking voltage

300.0

µA

20.0

ns

Maximum reverse recovery time

30.0

(NOTE 2)

50.0

ns

Maximum recovered stored charge

15.0

(NOTE 2)

30.0

nC

20.0

pF

R

ΘJA

25.0

°C/W

Operating junction and storage temperature range

-55 to +150

°C

NOTES:

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

4/98

0.210 (5.3)

0.190 (4.8)

DIA.

0.052 (1.32)

0.048 (1.22)

DIA.

1.0 (25.4)

MIN.

0.375 (9.5)

0.285 (7.2)

1.0 (25.4)

MIN.

DO-201AD

Dimensions in inches and (millimeters)