1N4942G THRU 1N4948G
Features
· Fast switching
· Low leakage current
· Low forward voltage drop
· High current capability
· Glass passivated junction
· High reliability capability
CURRENT 1.0 Ampere
VOLTAGE 200 to 1000 Volts
DO-41
0.107(2.7)
0.080(2.0)
DIA.
1.0(25.4)
MIN.
0.205(5.2)
0.166(4.2)
Mechanical Data
· 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
0.034(0.9)
0.028(0.7)
DIA.
1.0(25.4)
MIN.
Dimensions in inches and (millimeters)
Maximum Ratings And Electrical Characteristics
(Ratings at 25℃ ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive
load. For capacitive load, derate by 20%)
Symbols
Maximum recurrent 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
(JEDEC method)
Maximum instantaneous forward voltage
at 1.0A
Maximum DC reverse current at rated DC
blocking voltage
Maximum full load reverse current full cycle
average. 0.375"(9.5mm) lead length at
T
L
=55℃
Maximum reverse recovery time (Note 1)
Typical junction capacitance (Note 2)
Operating junction and storage
temperature range
I
R
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
1N4942G
200
140
200
1N4944G
400
280
400
1N4946G
600
420
600
1.0
30.0
1.3
5.0
1N4947G
800
560
800
1N4948G
1000
700
1000
Units
Volts
Volts
Volts
Amp
Amps
Volts
μA
100
Trr
C
J
T
J
T
STG
150
15.0
-65 to +175
250
500
ns
pF
℃
Notes:
(1) Test conditions: I
F
=0.5A, I
R
=1.0A, I
rr
=0.25A.
(2) Measured at 1MHz and applied reverse voltage of 4.0 Volts.
RATINGS AND CHARACTERISTIC CURVES 1N4942G THRU 1N4948G
FIG.1-TYPICAL FORWARD CURRENT
DERATING CURVE
1.50
AVERAGE FORWARD CURRENT(A)
1.25
1.00
0.75
0.50
0.25
0
SINGLE PHASE HALF WAVE 60Hz
RESISTIVE OR INDUCTIVE LOAD
FIG.2-MAXIMUM NON-REPETITIVE
FORWARD SURGE CURRENT
50
8.3m SINGLE HALF SINE WAVE
(JEDEC Method)
40
PEAK FORWARD SURGE
CURRENT(AMPERES)
30
20
10
0
0
25
50
75
100
125
150
175
AMBIENT TEMPERATURE (
℃)
1
2
4
6 8 10
20
NUMBER OF CYCLES AT 60Hz
40
60
100
FIG.3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
FIG.4-TYPICAL REVERSE CHARACTERISTICS
20
10
6.0
4.0
2.0
1.0
0.6
0.4
0.2
0.1
0.06
0.04
0.02
0.01
0
20
40
60
80
100
120
140
INSTANTANEOUS FORWARD CURRENT(AMPERES)
10
INSTANTANEOUS REVERSE CURRENT ,(mA)
20
T
J
=125℃
3
1
T
J
=75℃
0.3
0.1
T
J
=25℃
T
J
=25℃
0.03
0.01
0.4
0.6
0.8
Pulse Width=300mS
1% Duty Cycle
1.0
1.2
1.4
1.6
1.8
PERCENT OF RATED PEAK REVERSE VOLTAGE(%)
INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
FIG.5-TYPICAL JUNCTION CAPACITANCE
200
100
JUNCTION CAPACITANCE(pF)
60
40
FIG.6-TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTIC
50W
NON INDUCTIVE
10W
NON INDUCTIVE
+0.5A
Trr
(+)
20
10
6
4
2
1
0.1 0.2
0.4
1
2
4
10
20
40
100
REVERSE VOLTAGE. (V)
T
J
=25℃
D.U.T.
25Vdc
(APPROX)
(
)
PULSE
GENERATOR
(NOTE2)
0
-0.25A
1W
NON IN-
DUCTIVE
OSCILLOSCOPE
(NOTE1)
NOTES : 1.Rise Time=7ns max. input impedance=1
megohm 22pF
2.Rise Time=10ns max. source impedance
=50 ohms
-1.0A
1cm
SET TIME BASE FOR 50/100 ns/cm
测试/测量
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