1.0 AMP FAST RECOVERY RECTIFIERS
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating 25 C ambient temperature uniess otherwies specified.
Single phase half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
TYPE NUMBER
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
.375"(9.5mm) Lead Length at Ta=75 C
FEATURES
MECHANICAL DATA
Peak Forward Surge Current, 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Maximum Instantaneous Forward Voltage at 1.0A
Maximum DC Reverse Current Ta=25 C
at Rated DC Blocking Voltage Ta=100 C
Maximum Reverse Recovery Time (Note 1)
Typical Junction Capacitance (Note 2)
1.0
30
5.0
100
150 250 500
15
-65 +150
A
V
µA
µA
nS
pF
C
* Low forward voltage drop
* Low leakage current
* High reliability
* High current capability
* Case: Molded plastic
* Epoxy: UL 94V-0 rate flame retardant
* Lead: Axial leads, solderable per MIL-STD-202,
method 208 guranteed
* Polarity: Color band denotes cathode end
* Mounting position: Any
* Weight: 0.34 grams
1N4942 1N4948THRU
1.3
V
V
UNITS
V
1N4942 1N4944 1N4946 1N4947 1N4948
200 400 600 800 1000
200 400 600 800 1000
140 280 420 560 700
NOTES:
1. Reverse Recovery Time test condition: IF=0.5A, IR=1.0A, IRR=0.25A
2. Measured at 1MHz and applied reverse voltage of 4.0V D.C.
VOLTAGE RANGE
200 to 1000 Volts
CURRENT
1.0 Ampere
A
DO-41
Dimensions in inches and (millimeters)
1.0(25.4)
MIN.
1.0(25.4)
MIN.
.205(5.2)
.166(4.2)
.034(.9)
.028(.7)
DIA.
.107(2.7)
.080(2.0)
DIA.
Operating and Storage Temperature Range T , TJ STG
86
0.1
1.0
.01
10
50
RATING AND CHARACTERISTIC CURVES (1N4942 THRU 1N4948)
CHARACTERISTICS
FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE
AVERAGE FORWARD CURRENT,(A)
FIG.5-TYPICAL JUNCTION CAPACITANCE
REVERSE VOLTAGE,(V)
JUNCTION CAPACITANCE,(pF)
INSTANTANEOUS FORWARD CURRENT,(A)
FORWARD VOLTAGE,(V)
Pulse Width 300us
1% Duty Cycle
0.2
0.4
0.6
0.8
1.0
1.2
35
30
25
20
15
10
5
0 .01 .05 .1 .5 1 5 10 50 100
.6 .8 1.0 1.2 1.4 1.6 1.8 2.0
3.0
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
Tj=25 C
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
0.375"(9.5mm) Lead Length
(+)
(+)
25Vdc
(approx.)
( )
( )
PULSE
GENERATOR
(NOTE 2)
OSCILLISCOPE
(NOTE 1)
1
NON-
INDUCTIVE
Ω
NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF.
2. Rise Time= 10ns max., Source Impedance= 50 ohms.
+0.5A
0
-0.25A
-1.0A
|
|
|
|
|
|
|
|
1cm
SET TIME BASE FOR
50 / 10ns / cm
trr
D.U.T.
10
NONINDUCTIVE
50
NONINDUCTIVE
ΩΩ
0 20 40 60 80 100 120 140 160 180 200
0
FIG.1-TYPICAL FORWARD
AMBIENT TEMPERATURE,( C)
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
6
0
12
18
24
30
NUMBER OF CYCLES AT 60Hz
1 10 5 50 100
Tj=25 C 8.3ms Single Half
Sine Wave
JEDEC method
PEAK FORWARD SURGE CURRENT,(A)
87
