1N4942 THRU 1N4948
FAST SWITCHING PLASTIC RECTIFIER
VOLTAGE - 200 to 1000 Volts CURRENT - 1.0 Ampere
FEATURES
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l
High surge current capability
Plastic package has Underwriters Laboratory
Flammability Classification 94V-O Utilizing
Flame Retardant Epoxy Molding Compound
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l
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Void-free Plastic in a DO-41 package
1.0 ampere operation at T
A
=55 with no thermal runaway
Fast switching for high efficiency
Exceeds environmental standards of MIL-S-19500/228
DO-41
MECHANICAL DATA
Case: Molded plastic, DO-41
Terminals: Axial leads, solderable per MIL-STD-202,
Method 208
Polarity: Band denotes cathode
Mounting Position: Any
Weight: 0.012 ounce, 0.3 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 ambient temperature unless otherwise specified.
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
.375"(9.5mm) lead length at T
A
=55
Peak Forward Surge Current 8.3ms single half
sine
wave superimposed on rated load(JECEC method)
Maximum Forward Voltage at 1.0A
Maximum Reverse Current T
J
=25
at Rated DC Blocking Voltage T
J
=100
Typical Junction capacitance (Note 1)
Maximum Reverse Recovery Time(Note 2)
Typical Thermal Resistance (Note 3) R JA
Operating and Storage Temperature Range
1N4942
200
140
200
1N4944
400
280
400
1N4946
600
420
600
1.0
30
1N4947
800
560
800
1N4948
1000
700
1000
UNITS
V
V
V
A
A
1.3
5.0
500
150
150
12
250
41
-55 to +150
250
250
V
A
A
P
F
ns
/W
NOTES:
1.
2.
3.
Measured at 1 MHz and applied reverse voltage of 4.0 VDC
Reverse Recovery Test Conditions: I
F
=.5A, I
R
=1A, I
rr
=.25A
Thermal resistance from junction to ambient and from junction to lead at 0.375"(9.5mm) lead length P.C.B.
mounted
RATING AND CHARACTERISTIC CURVES
1N4942 THRU 1N4948
Fig. 1-REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
Fig. 2-TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
Fig. 3-FORWARD CURRENT DERATING CURVE
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