1N4942G THRU 1N4948G
Features
Mechanical Data
· Fast switching
· Low leakage current
· Low forward voltage drop
· High current capability
· Glass passivated junction
· High reliability capability
Maximum Ratings And Electrical Characteristics
· Case : JEDEC DO-41 molded plastic body
· Terminals : Plated axial lead solderable per MIL-STD-750,
method 2026
· Polarity : Color band denotes cathode end
· Mounting Position : Any
· Weight : 0.012 ounce, 0.34 gram
(Ratings at 25℃ ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive
load. For capacitive load, derate by 20%)
CURRENT 1.0 Ampere
VOLTAGE 200 to 1000 Volts
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Volts
Peak forward surge current 8.3ms single
half sine-wave superimposed on rated load
(JEDEC method)
V
DC
Maximum average forward rectified current
0.375"(9.5mm) lead length at T
A
=55℃
Maximum instantaneous forward voltage
at 1.0A
V
RRM
Volts
Symbols Units
1.3V
F
V
RMS
1.0
Amps30.0I
FSM
T
J
T
STG
100
-65 to +175 ℃
Volts
Amp
Maximum DC reverse current at rated DC
blocking voltage
Maximum reverse recovery time (Note 1)
Typical junction capacitance (Note 2)
Operating junction and storage
temperature range
200
1N4942G
140
200
400
280
400
5.0
Volts
μA
ns
pF
I
(AV)
I
R
Trr
15.0
C
J
1N4944G
600
1N4946G
420
600
800
1N4947G
560
800
1000
1N4948G
700
1000
Maximum full load reverse current full cycle
average. 0.375"(9.5mm) lead length at
T
L
=55℃
250 500150
Notes:
(1) Test conditions: I
F=0.5A, IR=1.0A, Irr=0.25A.
(2) Measured at 1MHz and applied reverse voltage of 4.0 Volts.
Dimensions in inches and (millimeters)
DO-41
1.0(25.4)
MIN.
1.0(25.4)
MIN.
0.205(5.2)
0.166(4.2)
0.034(0.9)
0.028(0.7)
DIA.
0.107(2.7)
0.080(2.0)
DIA.
FIG.1-TYPICAL FORWARD CURRENT
DERATING CURVE
1250 25 1501007550 175
AVERAGE FORWARD CURRENT(A)
AMBIENT TEMPERATURE ( ℃)
SINGLE PHASE HALF WAVE 60Hz
RESISTIVE OR INDUCTIVE LOAD
0
0.25
0.50
0.75
1.25
1.00
1.50
FIG.3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT(AMPERES)
1.20.4 0.6 1.41.00.8 1.81.6
INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
TJ=25℃
Pulse Width=300mS
1% Duty Cycle
10
0.1
0.01
1
0.03
0.3
3
20
FIG.5-TYPICAL JUNCTION CAPACITANCE
REVERSE VOLTAGE. (V)
JUNCTION CAPACITANCE(pF)
100.1
0.2
4 200.4 21 40 100
TJ=25℃
1
2
6
4
100
40
20
10
200
60
FIG.2-MAXIMUM NON-REPETITIVE
FORWARD SURGE CURRENT
NUMBER OF CYCLES AT 60Hz
PEAK FORWARD SURGE
CURRENT(AMPERES)
10
30
50
0
20
40
8.3m SINGLE HALF SINE WAVE
(JEDEC Method)
1 2 1006010864 4020
FIG.4-TYPICAL REVERSE CHARACTERISTICS
PERCENT OF RATED PEAK REVERSE VOLTAGE(%)
INSTANTANEOUS REVERSE CURRENT ,(mA)
1000 20 120806040 140
TJ=25℃
TJ=75℃
TJ=125℃
0.01
1.0
10
0.02
0.1
0.06
0.04
0.6
0.4
0.2
6.0
4.0
2.0
20
FIG.6-TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTIC
OSCILLOSCOPE
(NOTE1)
1W
NON IN-
DUCTIVE
50W
NON INDUCTIVE
10W
NON INDUCTIVE
D.U.T.
25Vdc
(APPROX)
( + )
Trr
1cm
SET TIME BASE FOR 50/100 ns/cm
NOTES : 1.Rise Time=7ns max. input impedance=1
megohm 22pF
2.Rise Time=10ns max. source impedance
=50 ohms
-1.0A
+0.5A
0
-0.25A
PULSE
GENERATOR
(NOTE2)
( )
RATINGS AND CHARACTERISTIC CURVES 1N4942G THRU 1N4948G
