Page 1
RECTRON
SEMICONDUCTOR
TECHNICAL SPECIFICA TION
FAST RECOVERY GLASS PASSIVATED RECTIFIER
VOLTAGE RANGE 200 to 1000 Volts CURRENT 1.0 Ampere
FEATURES
* High reliability
* Low leakage
* Low forward voltage drop
* Glass passivated junction
* High switch capability
MECHANICAL DATA
* Case: Molded plastic
* Epoxy: Device has UL flammability classification 94V-O
* Lead: MIL-STD-202E method 208C guaranteed
* Mounting position: Any
* Weight: 0.35 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 oC ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
1.0 (25.4)
.205 (5.2)
.166 (4.2)
1N4942G
1N4948G
MIN.
1.0 (25.4)
MIN.
THRU
.034 (0.9)
DIA.
.028 (0.7)
.107 (2.7)
DIA.
.080 (2.0)
DO-41
MAXIMUM RATINGS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
at TA = 55oC
Peak Forward Surge Current 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Typical Junction Capacitance (Note 2)
Operating and Storage Temperature Range
ELECTRICAL CHARACTERISTICS
Maximum Instantaneous Forward Voltage at 1.0A DC
Maximum DC Reverse Current
at Rated DC Blocking Voltage TA = 25oC
Maximum Full Load Reverse Current Full Cycle
Average, .375” (9.5mm) lead length at TL = 55oC
Maximum Reverse Recovery Time (Note 1)
NOTES : 1. Test Conditions: IF = 0.5A, IR = -1.0A, IRR = -0.25A
2. Measured at 1 MHZ and applied reverse voltage of 4.0 volts
(At TA = 25oC unless otherwise noted)
RATINGS
(At TA = 25oC unless otherwise noted)
CHARACTERISTICS
SYMBOL
V
RRM
V
RMS
V
DC
I
O
I
FSM
C
J
TJ, T
STG
SYMBOL
V
F
I
R
trr
1N4942G
200 600 800 1000400
140 420 560 700280
200 600 800 1000400
150
Dimensions in inches and (millimeters)
1N4946G
-65 to + 150
30
15
1.3
5.0
100
250
1N4947G 1N4948G1N4944G
500
UNITS
Volts
Volts
Volts
Amps1.0
Amps
pF
0
C
UNITS1N4942G 1N4946G 1N4947G 1N4948G1N4944G
Volts
uAmps
uAmps
nSec
2001-6
Page 2
RATING AND CHARACTERISTIC CURVES
(
1N4942G THRU 1N4948G
)
FIG. 1 - TYPICAL FORWARD
CURRENT DERATING CURVE
1.50
1.25
1.00
.75
.50
Single Phase
Half Wave 60Hz
.25
Resistive or
Inductive Load
0
AVERAGE FORWARD CURRENT, (A)
25 50 75 100 125 150 175
AMBIENT TEMPERATURE, ( )
FIG. 3 - MAXIMUM NON-REPETITIVE FORWARD
50
SURGE CURRENT
40
30
20
FIG. 2 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
10
1.0
.1
TJ = 25
Pulse Width = 300us
1% Duty Cycle
.01
.4 .6 .8 1.0 1.2 1.4 1.6
INSTANTANEOUS FORWARD CURRENT, (A)
INSTANTANEOUS FORWARD VOLTAGE, (V)
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
20
10
TJ = 125
1.0
TJ = 75
.1
10
8.3ms Single Half Sine-Wave
FORWARD SURGE CURRENT, (A)
(JEDED Method)
0
1246810 20 40 6080100
NUMBER OF CYCLES AT 60Hz
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
)
200
pF
(
100
60
40
20
10
6
TJ = 25
4
2
JUNCTION CAPACITANCE,
1
.1 .2 .4 1.0 2 4 10 20 40 100
REVERSE VOLTAGE, ( V )
INSTANTANEOUS REVERSE CURRENT, (uA)
TJ = 25
.01
0 20 40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
FIG. 6 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY
50
NONINDUCTIVE10NONINDUCTIVE
D.U.T
( + )
25 Vdc
(approx)
( - )
1
NONINDUCTIVE
1 Rise Time = 7ns max. Input Impedance =
NOTES:
1 megohm. 22pF.
2. Rise Time = 10ns max. Source Impedance =
50 ohms.
TIME CHARACTERISTIC
( - )
PULSE
GENERATOR
OSCILLOSCOPE
(NOTE 1)
(NOTE 2)
( + )
+0.5A
-0.25A
-1.0A
trr
0
1cm
RECTRON
SET TIME BASE FOR
50/100 ns/cm
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