General Semiconductor UG1D, UG1C, UG1A, UG1B Datasheet

UG1A THRU UG1D

0.107 (2.7)

0.080 (2.0)

0.034 (0.86)

0.028 (0.71)

DIA.

1.0 (25.4)
MIN.

1.0 (25.4)
MIN.

0.205 (5.2)

0.160 (4.1)

DIA.

ULTRAFAST EFFICIENT PLASTIC RECTIFIER

Reverse Voltage - 50 to 200 Volts Forward Current - 1.0 Ampere

DO-204AL

♦ Plastic package has Underwriters Laboratories

Flammability Classification 94V-0

♦ Ideally suited for use in very high frequency switching

power supplies, inver ters
and as a free wheeling diode

♦ 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

Case: JEDEC DO-204AL, molded plastic body
over passivated chip
Terminals: Axial leads, solderable per MIL-STD-750,
Method 2026

Polarity: Color band denotes cathode end
Mounting Position: Any

Dimensions in inches and (millimeters)

Weight: 0.012 ounce, 0.34 gram

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25°C ambient temperature unless otherwise specified.

SYMBOLS UG1A UG1B UG1C UG1D 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

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 1.0A 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 and storage temperature range T

NOTES:
(1) Reverse recovery test conditions:IF=0.5A, IR =1.0A, Irr=0.25A
(2) trrand Qrr measured at: IF=1.0A VR=30V, di/dt=50A/µs, Irr=10% I
(3) Measured at 1.0 MHZand applied reverse voltage of 4.0 Volts
(4) Thermal resistance from junction to ambient and from junction to lead at 0.375" (9.5mm) lead length

(NOTE 3)

(NOTE 4)

= 25°C 5.0

A

=100°C

A

=25°C 25.0

J

TJ=100°C

=25°C 8.0

J

TJ=100°C

for measurement of t

RM

I

R
R

, T

J

RRM
RMS

DC

(AV)

FSM

F

I

R

t

rr

t

rr

Q

rr

C

J

ΘJA
ΘJL

STG

FEATURES

MECHANICAL DATA

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

1.0 Amp

40.0 Amps

0.95 Volts

200.0

15.0 ns

35.0

12.0

7.0 pF

60.0

20.0

-55 to +150 °C

rr

µA

ns

nC

°C/W

4/98

RATINGS AND CHARACTERISTIC CURVES UG1A THRU UG1D

0 25 50 75 100 125 150 175

0

0.25

0.5

0.75

1.0

1.25

1.5

110100

1

10

100

0.4 0.6 0.8 1.0 1.2 1.4 1.6

0.01

0.1

1

10

100

0.1 1 10 100

1

10

100

0 25 50 75 100 125 150 175

0

10

20

30

40

50

60

020406080100

0.01

0.1

1

10

100

FIG. 1 - FORWARD CURRENT

DERATING CURVES

RESISTIVE OR INDUCTIVE
LOAD 0.375” (9.5mm)
LEAD LENGTH

, LEAD TEMPERATURE

T

L

FIG. 2 - MAXIMUM NON-REPETITIVE PEAK

FORWARD SURGE CURRENT

TL=75°C

8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)

CURRENT, AMPERES

AVERAGE FORWARD RECTIFIED

TA, AMBIENT
TEMPERATURE ON
P.C.B. MOUNTED

0.5 x 0.5” (12 x 12mm)
COPPER PAD AREAS

TEMPERATURE, °C

FIG. 3 - TYPICAL INSTANTANEOUS

FORWARD CHARACTERISTICS

AMPERES

INSTANTANEOUS FORWARD CURRENT,

TJ=100°C

TJ=25°C

PULSE WIDTH=300µs
1% DUTY CYCLE

AMPERES

PEAK FORWARD SURGE CURRENT,

NUMBER OF CYCLES AT 60 Hz

FIG. 4 - TYPICAL REVERSE CHARACTERISTICS

TJ=100°C

MICROAMPERES

INSTANTANEOUS REVERSE CURRENT,

TJ=25°C

INSTANTANEOUS FORWARD VOLTAGE,

VOLTS

FIG. 5 - REVERSE SWITCHING

CHARACTERISTICS

IF=1.0A
V

=30V

R

RECOVER Y TIME, nC/ns

STORED CHARGE/REVERSE

JUNCTION TEMPERATURE, °C

di/dt=20A/µs

di/dt=50A/µs

di/dt=100A/µs

di/dt=150A/µs

di/dt=

150A/µs

di/dt=

100A/µs

di/dt=

50A/µs

di/dt=

20A/µs

PERCENT OF RATED PEAK REVERSE

VOLTAGE, %

FIG. 6 - TYPICAL JUNCTION CAPACITANCE

t

rr

Q

rr

TJ=25°C
f=1.0 MH

Z

Vsig=50mVp-p

JUNCTION CAPACITANCE, pF

REVERSE VOLTAGE, VOLTS