1N4942 THRU 1N4948
GLASS PASSIVATED JUNCTION FAST SWITCHING RECTIFIER
Reverse Voltage - 200 to 1000 Volts Forward Current - 1. 0 Ampere
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 r unaway
♦ Typical IRless 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 1N4948 UNITS
* Maximum recurrent peak reverse voltage VRRM 200 400 600 800 1000 Volts
Maximum RMS voltage VRMS 140 280 420 560 700 Volts
* Maximum DC blocking voltage VDC 200 400 600 800 1000 Volts
* Minimum reverse breakdown voltage at 50µAV
(BR) 220 440 660 880 1100 Volts
* Maximum average forward rectified current
0.375” (9.5mm) lead length at TA=55°Cl(AV) 1.0 Amp
* Peak forward surge current
8.3ms single halt sine-wave superimposed IFSM 25.0 Amps
on rated load (JEDEC Method)
* Maximum instantaneous forward voltage at: 1.0A 1.3
at 2.0A, TA=-40°CVF2.5 Volts
* Maximum DC reverse current TA=25°C 1.0
at Rated DC blocking voltage TA=175°CIR500.0 µA
* Maximum reverse recover y time (NOTE 1) trr 150 250 500 ns
Typical junction capacitance (NOTE 2) CJ15.0 pF
Typical ther mal resistance (NOTE 3) RΘJA 55.0 °C/W
* Operating junction and storage temperature range TJ, TSTG -65 to +175 °C
NOTES:
(1) Reverse recovery test conditions: IF=0.5A, IR=1.0A, Irr=25A
(2) Measured at 1.0 MHZand applied reverse voltage of 4.0 Volts
(3) Ther mal resistance from junction to ambient at 0.375” (9.5mm) lead length, P.C.B. mounted
*JEDEC registered values
DO-204AP
0.034 (0.86)
0.028 (0.71)
DIA.
0.150 (3.8)
0.100 (2.5)
DIA.
1.0 (25.4)
MIN.
0.240 (6.1)
MAX.
1.0 (25.4)
MIN.
Dimensions in inches and (millimeters)
*
Brazed-lead assembly is covered by Patent No. 3,930,306
PATENTED*
25 50 75 100 125 150
0
0.5
0.4 0.6 0.8 1.0 1.2 1.4 1.6
10
1110100
10
30
1100
10
30
175
0.25
0.75
1.0
20
010
1
0.1
0.01
0 20 40 60 80 100
0.01
0.1
1
10
20
RATINGS AND CHARACTERISTIC CURVES 1N4942 THRU 1N4948
FIG. 1 - FORWARD CURRENT DERATING CURVE
AMBIENT TEMPERATURE, °C
AVERAGE FORWARD RECTIFIED
CURRENT, AMPERES
FIG. 2 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
NUMBER OF CYCLES AT 60 Hz
PEAK FORWARD SURGE CURRENT,
AMPERES
FIG. 3 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT,
AMPERES
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE, pF
REVERSE V OLTAGE, V OLTS
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
TJ=TJ max.
TJ=25°C
TJ=25°C
PULSE WIDTH=300µs
1% DUTY CYCLE
TJ=25°C
f=1.0 MHZ
Vsig=50mVp-p
RESISTIVE OR
INDUCTIVE LOAD
0.375" (9.5mm)
LEAD LENGTH
TJ=25°C
PERCENT OF RATED PEAK REVERSE
VOLTAGE, %
TJ=75°C
