General Semiconductor UG18DCT, UG18CCT, UG18BCT, UG18ACT Datasheet

UG18ACT THRU UG18DCT

0.415 (10.54) MAX.

0.154 (3.91)

0.148 (3.74)

DIA.

0.113 (2.87)

0.103 (2.62)

0.185 (4.70)

0.175 (4.44)

0.055 (1.39)

0.045 (1.14)

0.145 (3.68)

0.135 (3.43)

0.350 (8.89)

0.330 (8.38)

0.160 (4.06)

0.140 (3.56)

0.037 (0.94)

0.027 (0.68)

0.205 (5.20)

0.195 (4.95)

0.560 (14.22)

0.530 (13.46)

0.022 (0.56)

0.014 (0.35)

0.110 (2.79)

0.100 (2.54)

PIN

1

2

3

PIN 1

PIN 3

CASE

1.148 (29.16)

1.118 (28.40)

0.105 (2.67)

0.095 (2.41)

0.410 (10.41)

0.390 (9.91)

0.105 (2.67)

0.095 (2.41)

0.635 (16.13)

0.625 (15.87)

0.560 (14.22)

0.530 (13.46)

PIN 2

0.370 (9.40)

0.360 (9.14)

ULTRAFAST EFFICIENT PLASTIC RECTIFIER

Reverse Voltage - 50 to 200 Volts Forward Current - 18.0 Amperes

TO-220AB

Dimensions in inches and (millimeters)

FEATURES

♦ Plastic package has Underwriters Laboratories

Flammability Classification 94V-0

♦ Ideally suited for use in very

high frequency switching
power supplies, inverters
and as a free wheeling diode

♦ Ultrafast 25 nanosecond reverse recovery times
♦ Soft recovery characteristics
♦ Excellent high temperature switching
♦ Glass passivated junctions
♦ High temperature soldering guaranteed:

250°C, 0.16” (4.06mm) case for 10 seconds

MECHANICAL DATA

Case: JEDEC TO-220AB molded plastic body over

passivated chips
Terminals: Plated leads solderable per MIL-STD-750,
Method 2026

Polarity: As marked
Mounting Position: Any
Mounting T orque: 5 in. - lbs. max.
Weight: 0.08 ounce, 2.24 grams

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25°C ambient temperature unless otherwise specified.

SYMBOLS UG18ACT UG18BCT UG18CCT UG18DCT UNITS

Maximum repetitive peak reverse voltage V
Maximum RMS voltage V
Maximum DC blocking voltage V

Maximum average forward rectified current at T

=105°C I

C

RRM
RMS

DC

(AV)

Peak forward surge current

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

=105°C

C

FSM

Maximum instantaneous forward voltage per leg at 9.0A 1.10

20A 1.20

5.0A, T

Maximum DC reverse current T
at rated DC blocking voltage per leg T

Maximum reverse recovery time per leg
Maximum reverse recovery time per leg T

(NOTE 2)

Maximum recovered stored charge per leg T

(NOTE 2)

Typical junction capacitance per leg
Typical ther mal resistance per leg

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: IF=9.0A, VR=30V, di/dt=50A/µs, I

rr

(3) Measured at 1.0 MHZand applied reverse voltage of 4.0 Volts
(4) Thermal resistance from junction to case per leg

4/98

(NOTE 1)

TJ=100°C

TJ=100°C

(NOTE 3)

(NOTE 4)

=100°C

J

=25°C 10.0

A

=100°C

A

=25°C 30.0

J

=25°C 20.0

J

10% I

rr=

RM

V

F

I

R

t

rr

t

rr

Q

rr

C

J

R

ΘJC

, T

J

STG

50 100 150 200 Volts
35 70 105 140 Volts

50 100 150 200 Volts

18.0 Amps

175.0 Amps

0.95

300.0

V olts

µA

20.0 ns

50.0

45.0

ns

nC

30.0 pF

4.0 °C/W

-65 to +150 °C

0 25 50 75 100 125 150 175

0

4.0

8.0

12

16

20

24

110100

10

100

1,000

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

0 20 40 60 80 100

0.01

0.1

1

10

100

1,000

RATINGS AND CHARACTERISTIC CURVES UG18ACT THRU UG18DCT

FIG. 1 -FORWARD CURRENT DERATING CURVE

RESISTIVE OR INDUCTIVE LOAD

AMPERES

AVERAGE FORWARD CURRENT,

CASE TEMPERATURE, °C

FIG. 3 - TYPICAL INSTANTANEOUS FORWARD

CHARACTERISTICS PER LEG

TJ=25°C
PULSE WIDTH=300µs
1% DUTY CYCLE

AMPERES

INSTANTANEOUS FORWARD CURRENT,

INSTANTANEOUS FORWARD VOLTAGE,

VOLTS

FIG. 2 - MAXIMUM NON-REPETITIVE PEAK

FORWARD SURGE CURRENT PER LEG

8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)

=105°C

T

C

AMPERES

PEAK FORWARD SURGE CURRENT,

NUMBER OF CYCLES AT 60 H

FIG. 4 - TYPICAL REVERSE CHARACTERISTICS

PER LEG

TJ=125°C

TJ=100°C

Z

MICROAMPERES

TJ=25°C

INSTANTANEOUS REVERSE LEAKAGE CURRENT,

PERCENT OF RATED PEAK REVERSE

VOLTAGE, %

FIG. 5 - REVERSE SWITCHING CHARACTERISTICS

IF=9.0A
VR=30V

PER LEG

RECOVER Y TIME, nC/ns

STORED CHARGE/REVERSE

JUNCTION TEMPERATURE, °C

di/dt=100A/µs

di/dt=20A/µs

di/dt=50A/µs
di/dt=100A/µs
di/dt=50A/µs
di/dt=150A/µs

di/dt=20A/µs

FIG. 6 - TYPICAL JUNCTION CAPACITANCE PER LEG

TJ=125°C
f=1.0 MHz
Vsig=50MVp-p

t

rr

Q

rr

JUNCTION CAPACITANCE, pF

REVERSE VOLTAGE, V OLTS