background image

FAST RECOVERY RECTIFIER

VOLTAGE RANGE  50 to 600 Volts   CURRENT 1.0 Ampere

RECTRON

SEMICONDUCTOR

TECHNICAL  SPECIFICATION

FEATURES

* Low  cost
* Low leakage
* Low forward voltage drop
* High current capability

MECHANICAL DATA

* Case: Molded plastic
* Epoxy: Device has UL flammability classification 94V-O
* Lead: MIL-STD-202E method 208C guaranteed
* Mounting position: Any
* Weight: 0.33 gram

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25 

o

C ambient temperature unless otherwise specified.

Single phase, half wave, 60 Hz, resistive or inductive load.

For capacitive load, derate current by 20%.

ELECTRICAL CHARACTERISTICS (At T

A

 = 25

o

C unless otherwise noted)

1N4933

THRU

1N4937

DO-41

MAXIMUM RATINGS (At T

A

 = 25

o

C unless otherwise noted)

NOTES : 1. Test Conditions: I

F

 = 1.0A, V

R

 = 30V

2. Measured at 1 MH

Z

 and applied reverse voltage of 4.0 volts 

Dimensions in inches and (millimeters)

2002-11

RATINGS

Maximum Recurrent Peak Reverse Voltage

Maximum RMS Voltage

Maximum DC Blocking Voltage

Maximum Average Forward Rectified Current
at T

A

 = 75

o

C

Peak Forward Surge Current 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)

Typical Junction Capacitance (Note 2)

Operating and Storage Temperature Range

SYMBOL

V

RRM

V

DC

I

O

I

FSM

C

J

T

J

, T

STG

V

RMS

Volts

Volts

Volts

Amps

1.0

30

15

-55 to + 150

Amps

pF

0

C

UNITS

50

200

400

600

100

35

140

280

420

70

50

200

400

600

100

1N4933

1N4935

1N4936

1N4937

1N4934

at Rated DC Blocking Voltage T

A

 = 25

o

C

CHARACTERISTICS

Maximum Full Load Reverse Current Full Cycle
Average, .375” (9.5mm) lead length at T

L

 = 55

o

C

Maximum Reverse Recovery Time (Note 1)

V

F

SYMBOL

I

R

trr

1.2

5.0

100

200

uAmps

uAmps

nSec

Maximum DC Reverse Current

Maximum Instantaneous Forward Voltage at 1.0A DC

Volts

1N4933

1N4935

1N4936

1N4937

1N4934

UNITS

1.0 (25.4)

MIN.

.166 (4.2)

.205 (5.2)

1.0 (25.4)

MIN.

.107 (2.7)

.080 (2.0)

DIA.

.034 (0.9)

.028 (0.7)

DIA.

1n4933-4937-html.html
background image

RECTRON

RATING AND CHARACTERISTIC CURVES ( 1N4933 THRU 1N4937 )

JUNCTION CAPACITANCE, (pF)

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. 1 - TYPICAL FORWARD CURRENT 

AVERAGE FORWARD CURRENT, (A)

AMBIENT TEMPERATURE, (     )

DERATING CURVE

1.0

.8

.6

.4

.2

0

0

25

50

75

100

125

150

175

Single Phase
Half Wave 60Hz
Resistive or
Inductive Load

FIG. 2 - MAXIMUM NON-REPETITIVE  

PEAK FORWARD SURGE CURRENT, (A) 

NUMBER OF CYCLES AT 60Hz

FORWARD SURGE CURRENT

1

2

4

6 8 10

20

40 6080100

50

40

30

20

10

0

8.3ms Single Half Sine-Wave
(JEDED Method)

Pulse Width=300uS
1% Duty Cycle

FIG. 4 - TYPICAL INSTANTANEOUS

FORWARD CHARACTERISTICS

INSTANTANEOUS FORWARD CURRENT, (A)

INSTANTANEOUS FORWARD VOLTAGE, (V)

TJ = 25

20

10

1.0

.1

.01

.6

.8

1.0

1.2

1.4

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 1

1

/

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

i(t) di/dt = 50A/uS

IFM 1.0

0

IRM (REC)