Features
High temperature metallurgically bonded construction
Hermetically sealed package
1.0 ampere operation at TA=55 with no thermal runaway
Typical IR 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,
Polarity: Color band denotes cathode
Weight: 0.012 ounce, 0.33 gram
method 2026
1N4942 THRU 1N4948
FAST SWITCHING PLASTIC RECTIFIER
Reverse Voltage -
Forward Current -
DIM
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 -
inches mm
Min. Max. Min. Max.
200 to 1000 Volts
1.0 Ampere
DIMENSIONS
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 V
Maximum RMS voltage V
Maximum DC blocking voltage V
Maximum average forward rectified current
0.375" (9.5mm) lead length at TA=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
Maximum DC reverse current TA=25
at rated DC blocking voltage TA=175
Maximum reverse recovery time (Note 1) T
Typical junction capacitance (Note 2) C
Typical thermal resistance (Note 3) R
Operating junction and storage temperature range T
Notes:
(1) Reverse recovery test conditions: IF=0.5A, IR=1.0A, Irr=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
A
=40
RRM
RMS
DC
I
(AV)
I
FSM
V
F
I
R
rr
J
JA
, T
J
STG
200 400 600 800 1000 Volts
140 280 420 560 700 Volts
200 400 600 800 1000 Volts
1
1.0 Amp
25.0 Amps
1.3
2.5
1.0
500.0
150 250 500 nS
15.0
55.0
-65 to +175
Volts
A
F
/W
RATINGS AND CHARACTERISTIC CURVES
2