RECTRON

RATING AND CHARACTERISTIC CURVES ( 1N4933G THRU 1N4937G )

FIG. 1 - TYPICAL FORWARD

AMBIENT TEMPERATURE, (

)

CURRENT DERATING CURVE

1.50

1.25

1.00

.75

.50

.25

25

50

75

100

125

150

175

Single Phase

Half Wave 60Hz

Resistive or

Inductive Load

0

FIG. 2 - MAXIMUM NON-REPETITIVE

NUMBER OF CYCLES AT 60Hz

FORWARD SURGE CURRENT

12

4

6 810

20

40 6080100

50

40

30

20

10

0

8.3ms Single Half Sine-Wave

(JEDED Method)

FIG. 3 - TYPICAL JUNCTION CAPACITANCE

REVERSE VOLTAGE, ( V )

200

100

60

40

20

10

6

4

2

1

.1

.2

.4

1.0

2

4

10

20

40

100

TJ = 25

FIG. 4 - TYPICAL INSTANTANEOUS FORWARD

CHARACTERISTICS

INSTANTANEOUS FORWARD VOLTAGE, (V)

TJ = 25

Pulse Width = 300us

1% Duty Cycle

.6

.8

1.0

1.2

1.4

20

10

1.0

.1

.01

FIG. 5 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY

TIME CHARACTERISTIC

8

7

6

5

4

3

2

1

115Va 10K

60Hz 2W

C.P.CLARE

HPG 1002

30 Vdc

CONSTANT VOLTAGE

SUPPLY

3.8uH/1.4

1 AMP

SLO-BLO

FUSE

C1

1.0uF

300V

30

50W

NON-INDUCTIVE

UNIT

UNDER TEST

R2

1

10W

NON-

INDUCTIVE

C1

1.0uF

300V

1.0 Adc FROM

CONSTANT

VOLTAGE SUPPLY

RIPPLE = 3mVrms MAX

MINIMIZE ALL LEAD LENGTHS

A-TEKTRONIX 545A. K PLUG IN

PRE AMP P6000 PROBE OR EQUIVALENT

R1-ADJUSTED FOR 1.4

BETWEEN

POINT 2 OF RELAY AND RECTIFIER

INDUCTIVE = 3.8uH

Zout 11/2

MAX

DC to 2kHz

R2-TEN-1W 10

% CARBON CORE

IN PARALLEL

TA = 25

FOR RECTIFIER

10

0

SET TIME BASE FOR

50/100 ns/cm

trr

di/dt = 50A/uS

IFM 1.0

0

IRM (REC)

i(t)