1N4942 THRU 1N4948
FAST SWITCHING PLASTIC RECTIFIER
Reverse Voltage -
200 to 1000 Volts
Forward Current -
1.0 Ampere
Features
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
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
DIM ENSIONS
DIM
A
B
C
D
inches
Min.
0.165
0.079
0.028
1.000
Max.
0.205
0.106
0.034
-
Min.
4.2
2.0
0.71
25.40
mm
Max.
5.2
2.7
0.86
-
Note
Maximum Ratings and Electrical Characteristics
Ratings at 25
ambient temperature unless otherwise specified.
Symbols
1N4942
1N4944
1N4946
1N4947
1N4948
Units
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
0.375" (9.5mm) lead length at T
A
=55
Peak forward surge current
8.3mS single half sine-wave superimposed
on rated load (MIL-STD-750D 4066 method)
Maximum instantaneous forward voltage at: 1.0A
at: 2.0A, T
A
=40
Maximum DC reverse current
at rated DC blocking voltage
T
A
=25
T
A
=175
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
T
rr
C
J
R
JA
200
140
200
400
280
400
600
420
600
1.0
25.0
1.3
2.5
1.0
500.0
800
560
800
1000
700
1000
Volts
Volts
Volts
Amp
Amps
Volts
A
Maximum reverse recovery time (Note 1)
Typical junction capacitance (Note 2)
Typical thermal resistance (Note 3)
Operating junction and storage temperature range
150
15.0
55.0
250
500
nS
F
/W
T
J
, T
STG
-65 to +175
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
1
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