Notes:
(1) Reverse recovery test conditions: I
F
=0.5A, I
R
=1.0A, I
rr
=0.25A
(2) Measured at 1.0MHz 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
Symbols
1N4942
1N4944
1N4946
1N4947
1N4948
Units
Maximum repetitive peak reverse voltage
V
RRM
200
400
600
800
1000
Volts
Maximum RMS voltage
V
RMS
140
280
420
560
700
Volts
Maximum DC blocking voltage
V
DC
200
400
600
800
1000
Volts
Maximum average forward rectified current
0.375" (9.5mm) lead length at T
A
=55
I
(AV)
1.0
Amp
Peak forward surge current
8.3mS single half sine-wave superimposed
on rated load (MIL-STD-750D 4066 method)
I
FSM
25.0
Amps
Maximum instantaneous forward voltage at: 1.0A
at: 2.0A, T
A
=40
V
F
1.3
2.5
Volts
Maximum DC reverse current T
A
=25
at rated DC blocking voltage T
A
=175
I
R
1.0
500.0
A
Maximum reverse recovery time (Note 1)
T
rr
150
250
500
nS
Typical junction capacitance (Note 2)
C
J
15.0
F
Typical thermal resistance (Note 3)
R
JA
55.0
/W
Operating junction and storage temperature range
T
J
, T
STG
-65 to +175
Features
1N4942 THRU 1N4948
FAST SWITCHING PLASTIC RECTIFIER
Reverse Voltage -
200 to 1000 Volts
Forward Current -
1.0 Ampere
High temperature metallurgically bonded construction
Hermetically sealed package
1.0 ampere operation at T
A
=55 with no thermal runaway
Typical I
R
less than 0.1
A
Capable of meeting environmental standards of
MIL-S-19500
Fast switching for high efficiency
High temperature soldering guaranteed:
350 /10 seconds, 0.375 (9.5mm) lead length,
5 lbs. (2.3Kg) tension
Maximum Ratings and Electrical Characteristics
1
Ratings at 25 ambient temperature unless otherwise specified.
Mechanical Data
Case: DO-41 solid plastic body
Terminals: Plated axial leads, solderable per
MIL-STD-750, method 2026
Polarity: Color band denotes cathode
Weight: 0.012 ounce, 0.33 gram
DIMENSIONS
DIM
inches
mm
Note
Min.
Max.
Min.
Max.
A
0.165
0.205
4.2
5.2
B
0.079
0.106
2.0
2.7
C
0.028
0.034
0.71
0.86
D
1.000
-
25.40
-
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