General Semiconductor UG4D, UG4C, UG4A, UG4B Datasheet

UG4A THRU UG4D

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.

ULTRAFAST EFFICIENT PLASTIC RECTIFIER

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

DO-201AD

Dimensions in inches and (millimeters)

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25°C ambient temperature unless otherwise specified.

FEATURES

♦ Plastic package has Underwriters Laboratories

Flammability Classification 94V-0

♦ Ideally suited for use in very high frequency switching

power supplies, inver ters and as free wheeling diodes

♦ Ultrafast recover y 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

SYMBOLS UG4A UG4B UG4C UG4D UNITS

Maximum repetitive peak reverse voltage V
Maximum RMS voltage V
Maximum DC blocking voltage V
Maximum average forward rectified current

0.375" (9.5mm) lead length at T

=75°C

L

I

Peak forward surge current

8.3 ms single half sine-wave superimposed I
on rated load (JEDEC Method) at T

=75°C

L

Maximum instantaneous forward voltage at 4.0A V
Maximum DC reverse current T

at rated DC blocking voltage T
Maximum reverse recovery time

(NOTE 1)

Maximum reverse recovery time T

(NOTE 2)

Maximum recovered stored charge T

(NOTE 2)

Typical junction capacitance
Typical thermal resistance
Operating junction and storage temperature range T

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

and QRRmeasured at tester: IF=4.0A, VR=30V, di/dt=50A/µs, Irr=10% I

rr

(3) Measured at 1.0 MHZand applied reverse voltage of 4.0 Volts
(4) Thermal resistance from junction to ambient at 0.375" (9.5mm) lead length

(NOTE 3)

(NOTE 4)

=25°C 5.0

A

=100°C

A

=25°C 30.0

J

TJ =100°C

=25°C 15.0

J

TJ=100°C

R

J

for measurement of t

RM

RRM
RMS

DC

(AV)

FSM

F

I

R

t

rr

t

rr

Q

C

ΘJA

, T

rr

J

STG

50 100 150 200 Volts
35 70 105 140 Volts
50 100 150 200 Volts

4.0 Amps

150.0 Amps

0.95 Volts

300.0

20.0 ns

50.0

30.0

20.0 pF

25.0 °C/W

-55 to +150 °C

rr

µA

ns

nC

4/98

RATINGS AND CHARACTERISTIC CURVES UG4A THRU UG4D

0 25 50 75 100 125 150 175

0

1.0

2.0

3.0

4.0

5.0

6.0

110100

10

100

200

0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8

0.01

0.1

1

10

100

0 25 50 75 100 125 150 175

0

10

20

30

40

50

60

0.1 1 10 100

1

10

100

1

0 20 40 60 80 100

0.01

0.1

1

10

100

1,000

FIG. 1 - FORWARD CURRENT

DERATING CURVE

RESISTIVE OR INDUCTIVE LOAD

TL, LEAD TEMPERATURE

0.375" (9.5mm) LEAD LENGTH

AVERAGE FORWARD RECTIFIED CURRENT,

AMPERES

TA, AMBIENT
TEMPERATURE
P.C.B. MOUNTED

0.5 x 0.5” (12 x 12mm)
COPPER PADS

TEMPERATURE, °C

FIG. 3 - TYPICAL INSTANTANEOUS

FORWARD CHARACTERISTICS

FIG. 2 - MAXIMUM NON-REPETITIVE PEAK

FORWARD SURGE CURRENT

TL=75°C

8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)

AMPERES

PEAK FORWARD SURGE CURRENT,

NUMBER OF CYCLES AT 60 H

FIG. 4 - TYPICAL REVERSE LEAKAGE

CHARACTERISTICS

Z

TJ=100°C

PULSE WIDTH=300µs
1% DUTY CYCLE

AMPERES

INSTANTANEOUS FORWARD CURRENT,

INSTANTANEOUS FORWARD VOLTAGE,

VOLTS

FIG. 5 - REVERSE SWITCHING

CHARACTERISTICS

di/dt=150A/µs

di/dt=100A/µs

di/dt=

di/dt=

di/dt=

di/dt=50A/µs
di/dt=20A/µs

RECOVER Y TIME, nC/ns

IF=4.0A
V

=30V

R

RECOVERED STORED CHARGE/REVERSE

JUNCTION TEMPERATURE, °C

TJ=25°C

20A/µs

50A/µs

150A/µs

TJ=100°C

MICROAMPERES

TJ=25°C

INSTANTANEOUS REVERSE LEAKAGE CURRENT,

PERCENT OF RATED PEAK REVERSE

VOLTAGE, %

FIG. 6 - TYPICAL JUNCTION CAPACITANCE

TJ=25°C
f=1.0 MHz
Vsig=50mVp-p

t

rr

Q

rr

JUNCTION CAPACITANCE, pF

REVERSE VOLTAGE, VOLTS