1N4942 View Datasheet(PDF) - General Semiconductor

Part Name

Description

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1N4942

GLASS PASSIVATED JUNCTION FAST SWITCHING RECTIFIER

General Semiconductor 

1N4942 THRU 1N4948

GLASS PASSIVATED JUNCTION FAST SWITCHING RECTIFIER

Reverse Voltage - 200 to 1000 Volts Forward Current - 1. 0 Ampere

ENTED* 0.034 (0.86)

T 0.028 (0.71)

PA DIA.

DO-204AP

1.0 (25.4)

MIN.

0.240 (6.1)

MAX.

0.150 (3.8)

0.100 (2.5)

DIA.

1.0 (25.4)

MIN.

Dimensions in inches and (millimeters)

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

FEATURES

♦ High temperature metallurgically bonded construction

♦ Hermetically sealed package

♦ Glass passivated cavity-free junction

♦ 1.0 Ampere operation

at TA=55°C with no

thermal runaway

♦ Typical IR less than 0.1µA

♦ Capable of meeting environmental standards of

MIL-S-19500

♦ Fast switching for high efficiency

♦ High temperature soldering guaranteed:

350°C/10 seconds, 0.375” (9.5mm) lead length,

5 lbs. (2.3kg) tension

MECHANICAL DATA

Case: JEDEC DO-204AP solid glass body

Terminals: Solder plated axial leads, solderable per

MIL-STD-750, Method 2026

Polarity: Color band denotes cathode end

Weight: 0.02 ounce, 0.56 gram

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25°C ambient temperature unless otherwise specified.

SYMBOLS 1N4942 1N4944 1N4946 1N4947

* Maximum recurrent peak reverse voltage

VRRM

200

400

600

800

Maximum RMS voltage

VRMS

140

280

420

560

* Maximum DC blocking voltage

VDC

200

400

600

800

* Minimum reverse breakdown voltage at 50µA

V(BR)

220

440

660

880

* Maximum average forward rectified current

0.375” (9.5mm) lead length at TA=55°C

l(AV)

1.0

* Peak forward surge current

8.3ms single halt sine-wave superimposed

IFSM

25.0

on rated load (JEDEC Method)

* Maximum instantaneous forward voltage at: 1.0A

at 2.0A, TA=-40°C

VF

1.3

2.5

* Maximum DC reverse current

at Rated DC blocking voltage

TA=25°C

TA=175°C

IR

1.0

500.0

* Maximum reverse recovery time (NOTE 1)

trr

150

250

Typical junction capacitance (NOTE 2)

CJ

15.0

Typical thermal resistance (NOTE 3)

RΘJA

55.0

* Operating junction and storage temperature range

TJ, TSTG

-65 to +175

1N4948

1000

700

1000

1100

500

UNITS

Volts

Volts

Volts

Volts

Amp

Amps

Volts

µA

ns

pF

°C/W

°C

NOTES:

(1) Reverse recovery test conditions: IF=0.5A, IR=1.0A, Irr=25A

(2) Measured at 1.0 MHz and applied reverse voltage of 4.0 Volts

(3) Thermal resistance from junction to ambient at 0.375” (9.5mm) lead length, P.C.B. mounted

*JEDEC registered values

4/98

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