General Semiconductor CG3 Datasheet

CLAMPER / DAMPER GLASS PASSIVATED RECTIFIER

0.200 (5.08)

0.120 (3.05)

0.052 (1.32)

0.048 (1.22)

DIA.

DIA.

1.0 (25.4)
MIN

MAX.

0.300 (7.6)

1.0 (25.4)
MIN

Reverse Voltage - 1400 to 1500 Volts Forward Current - 3.0 Amperes

PATENTED*

Dimensions in inches and (millimeters)

*

Brazed-lead assembly is covered by Patent No. 3,930,306

DG3

CG3 AND DG3

FEATURES

♦ Specially designed for clamping circuits horizontal

deflection systems and damper applications

♦ High temperature metallurgically bonded construction
♦ Glass passivated cavity-free junction
♦ 3.0 Ampere operation

at TA=50°C with no
thermal runaway

♦ Typical IRless than 0.1µA
♦ Hermetically sealed package
♦ Capable of meeting environmental standards of

MIL-S-19500

♦ High temperature soldering guaranteed:

350°C/10 seconds, 0.375" (9.5mm) lead length,
5 lbs. (2.3kg) tension

MECHANICAL DATA

Case: Solid glass body
Terminals: Solder plated axial leads, solderable per

MIL-STD-750, Method 2026

Polarity: Color band denotes cathode end
Mounting Position: Any
Weight: 0.04 ounce, 1.1 grams

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25°C ambient temperature unless otherwise specified.

SYMBOLS CG3 DG3 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

=50°C

A

Peak forward surge current 8.3ms single half sinewave
superimposed on rated load (JEDEC Method) at T

=50°C

A

Maximum instantaneous forward voltage at 3.0A V
Maximum DC reverse current T

at rated DC blocking voltage T

=25°C 5.0

A

=100°C

A

Maximum full load reverse current full cycle
average, 0.375” (9.5mm) lead length at T

Maximum reverse recovery time
Typical junction capacitance
Typical thermal resistance

(NOTE 1)

(NOTE 2)

(NOTE 3)

=70°C

A

Operating junction and storage temperature range T

NOTES:

(1) Measured with I
(2) Measured at 1.0 MH
(3) Thermal resistance from junction to ambient at 0.375" (9.5mm) lead length,

with leads attached to heat sinks

=0.5A, IR=50mA

F

and applied reverse voltage of 4.0 Volts

Z

I

I

I

R(AV)

R

, T

J

RRM
RMS

DC

(AV)

FSM

F

I

R

t

rr

C

J

ΘJA

STG

1400 1500 Volts

980 1050 Volts

1400 1500 Volts

3.0 Amps

100.0 Amps

1.2 Volts

100.0

µA

200.0 µA

15.0 20.0 µs

40.0 pF

20.0 °C/W

-65 to +175 °C

4/98

110100

10

100

200

10

100

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

0.01

0.1

1

10

30

1 10 100

0 25 50 75 100 125 150 175

0

1.0

2.0

3.0

4.0

0

20

40 60 80 100

0.01

0.1

1.0

10

RATINGS AND CHARACTERISTIC CURVES CG3 AND DG3

FIG. 1 - FORWARD CURRENT DERATING CURVE

CURRENT, AMPERES

AVERAGE FORWARD RECTIFIED

0.375"(9.5mm) LEAD LENGTH

AMBIENT TEMPERATURE, °C

FIG. 3 - TYPICAL INSTANTANEOUS FORWARD

CHARACTERISTICS

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

AMPERES

60 H

Z

RESISTIVE OR
INDUCTIVE LOAD

FIG. 2 - MAXIMUM NON-REPETITIVE PEAK

FORWARD SURGE CURRENT

TA=50°C

8.3ms SINGLE HALF
SINE-WAVE (JEDEC Method)

AMPERES

PEAK FORWARD SURGE CURRENT,

NUMBER OF CYCLES AT 60 H

FIG. 4 - TYPICAL REVERSE CHARACTERISTICS

TJ=100°C

Z

MICROAMPERES

TJ=25°C

INSTANTANEOUS REVERSE CURRENT,

INSTANTANEOUS FORWARD CURRENT,

INSTANTANEOUS FORWARD VOLTAGE,

VOLTS

FIG. 5 - TYPICAL JUNCTION CAPACITANCE

JUNCTION, CAPACITANCE, pF

REVERSE VOLTAGE, VOLTS

TJ=25°C
f=1.0 MHz
Vsig=50mVp-p

PERCENT OF RATED PEAK REVERSE VOLTAGE, %