VISHAY 1N4947

1N4942 THRU 1N4948
GLASS PASSIVATED JUNCTION FAST SWITCHING RECTIFIER
Reverse Voltage - 200 to 1000 Volts
*
FEATURES
DO-204AP
ED
T
EN
T
PA
0.034 (0.86)
0.028 (0.71)
DIA.
1.0 (25.4)
MIN.
0.240 (6.1)
MAX.
0.150 (3.8)
0.100 (2.5)
DIA.
Forward Current - 1. 0 Ampere
1.0 (25.4)
MIN.
♦ 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
Dimensions in inches and (millimeters)
*Brazed-lead assembly is covered by Patent No. 3,930,306
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
VRRM
200
400
600
800
1000
Volts
VRMS
140
280
420
560
700
Volts
* Maximum DC blocking voltage
VDC
200
400
600
800
1000
Volts
* Minimum reverse breakdown voltage at 50µA
V(BR)
220
440
660
880
1100
Volts
* Maximum average forward rectified current
0.375” (9.5mm) lead length at TA=55°C
l(AV)
1.0
Amp
* Peak forward surge current
8.3ms single halt sine-wave superimposed
on rated load (JEDEC Method)
IFSM
25.0
Amps
* Maximum instantaneous forward voltage at: 1.0A
at 2.0A, TA=-40°C
VF
1.3
2.5
Volts
* Maximum DC reverse current
at Rated DC blocking voltage
IR
1.0
500.0
µA
* Maximum recurrent peak reverse voltage
Maximum RMS voltage
TA=25°C
TA=175°C
* Maximum reverse recovery time (NOTE 1)
Typical junction capacitance (NOTE 2)
Typical thermal resistance (NOTE 3)
* Operating junction and storage temperature range
trr
250
500
ns
CJ
15.0
pF
RΘJA
55.0
°C/W
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 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
150
RATINGS AND CHARACTERISTIC CURVES 1N4942 THRU 1N4948
FIG. 2 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
FIG. 1 - FORWARD CURRENT DERATING CURVE
30
RESISTIVE OR
INDUCTIVE LOAD
0.375" (9.5mm)
LEAD LENGTH
0.75
PEAK FORWARD SURGE CURRENT,
AMPERES
AVERAGE FORWARD RECTIFIED
CURRENT, AMPERES
1.0
0.5
0.25
0
25
50
75
100
125
150
TJ=TJ max.
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
20
10
0
175
1
100
10
AMBIENT TEMPERATURE, °C
NUMBER OF CYCLES AT 60 Hz
FIG. 3 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
20
10
1
TJ=25°C
PULSE WIDTH=300µs
1% DUTY CYCLE
0.1
0.01
0.4
0.6
0.8
1.0
1.2
1.4
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
INSTANTANEOUS FORWARD CURRENT,
AMPERES
10
TJ=25°C
1
TJ=75°C
0.1
1.6
TJ=25°C
0.01
0
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
20
40
60
80
PERCENT OF RATED PEAK REVERSE
VOLTAGE, %
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE, pF
30
TJ =25°C
f=1.0 MHz
Vsig=50mVp-p
10
1
1
10
REVERSE VOLTAGE, VOLTS
100
100