SOFT RECOVERY/FAST SWITCHING RECTIFIER

VOLTAGE RANGE  50 to 600 Volts   CURRENT 3.0 Amperes

RECTRON

SEMICONDUCTOR

TECHNICAL  SPECIFICATION

FEATURES

* Fast  switching
* Low  leakage
* Low forward voltage drop
* High current capability
* High surge capability
* High  reliability

MECHANICAL DATA

* Case: Molded plastic
* Epoxy: Device has UL flammability classification 94V-O
* Lead: MIL-STD-202E method 208C guaranteed
* Mounting position: Any
* Weight: 1.20 grams

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%.

RL850

THRU

RL856

DO-201AD

MAXIMUM RATINGS (At T

A

 = 25

o

C unless otherwise noted)

Dimensions in inches and (millimeters)

ELECTRICAL CHARACTERISTICS (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 

2002-11

RATINGS

Maximum Recurrent Peak Reverse Voltage

Maximum RMS Voltage

Maximum DC Blocking Voltage

Maximum Average Forward Rectified Current
at T

A

 = 90

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

3.0

2.0

65

-55 to + 150

Amps

pF

0

C

UNITS

50

200

400

600

100

35

140

280

420

70

50

200

400

600

100

RL850

RL852

RL854

RL856

RL851

Maximum Reverse Recovery Current

I

RR

100

Amps

at Rated DC Blocking Voltage T

A

 = 25

o

C

CHARACTERISTICS

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

L

 = 100

o

C

Maximum Reverse Recovery Time (Note 1)

V

F

SYMBOL

I

R

trr

1.3

1.0

200

uAmps

uAmps

nSec

Maximum DC Reverse Current

Maximum Instantaneous Forward Voltage at 3.0A DC

Volts

UNITS

RL850

RL852

RL854

RL856

RL851

150

200

250

300

150

.220 (5.6)

.197 (5.0)

DIA.

.052 (1.3)
.048 (1.2)

DIA.

1.0 (25.4)

MIN.

.335 (8.5)

.375 (9.5)

1.0 (25.4)

MIN.

RECTRON

RATING AND CHARACTERISTIC CURVES ( RL850 THRU RL856 )

JUNCTION CAPACITANCE, (pF)

FIG. 4 - 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

4

3

2

1

0

0

25

50

75

100 125

150

175

Single Phase
Half Wave 60Hz
Resistive or
Inductive Load

TJ = 25
Pulse Width=300uS
1% Duty Cycle

FIG. 3 - TYPICAL INSTANTANEOUS

FORWARD CHARACTERISTICS

INSTANTANEOUS FORWARD CURRENT, (A)

INSTANTANEOUS FORWARD VOLTAGE, (V) 

20

10

3.0

1.0

0.3

0.1

.03

.01

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

8.3ms Single Half Sine-Wave
(JEDED Method)

FIG. 2 - MAXIMUM NON-REPETITIVE FORWARD 

PEAK FORWARD SURGE 

NUMBER OF CYCLES AT 60Hz

SURGE CURRENT

CURRENT, (A)

200

100

50

10

1

5

10

50

100

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

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

IFM 1.0

0

IRM (REC)