FAST RECOVERY GLASS PASSIVATED RECTIFIER
VOLTAGE RANGE 200 to 1000 Volts CURRENT 1.0 Ampere
RECTRON
SEMICONDUCTOR
TECHNICAL SPECIFICATION
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
o
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
ELECTRICAL CHARACTERISTICS (At T
A
= 25
o
C unless otherwise noted)
1N4942G
THRU
1N4948G
DO-41
MAXIMUM RATINGS (At T
A
= 25
o
C unless otherwise noted)
NOTES : 1. Test Conditions: I
F
= 0.5A, I
R
= -1.0A, I
RR
= -0.25A
2. Measured at 1 MH
Z
and applied reverse voltage of 4.0 volts
Dimensions in inches and (millimeters)
2001-6
RATINGS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
at T
A
= 55
o
C
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
SYMBOL
V
RRM
V
DC
I
O
I
FSM
C
J
T
J
, T
STG
V
RMS
Volts
Volts
Volts
Amps
1.0
30
15
-65 to + 150
Amps
pF
0
C
UNITS
200
600
800
1000
400
140
420
560
700
280
200
600
800
1000
400
1N4942G
1N4946G
1N4947G
1N4948G
1N4944G
at Rated DC Blocking Voltage T
A
= 25
o
C
CHARACTERISTICS
Maximum Full Load Reverse Current Full Cycle
Average, .375" (9.5mm) lead length at T
L
= 55
o
C
Maximum Reverse Recovery Time (Note 1)
V
F
SYMBOL
I
R
trr
1.3
5.0
100
250
uAmps
uAmps
nSec
Maximum DC Reverse Current
Maximum Instantaneous Forward Voltage at 1.0A DC
Volts
150
500
UNITS
1N4942G
1N4946G
1N4947G
1N4948G
1N4944G
1.0 (25.4)
MIN.
.166 (4.2)
.205 (5.2)
1.0 (25.4)
MIN.
.107 (2.7)
.080 (2.0)
DIA.
.034 (0.9)
.028 (0.7)
DIA.
RECTRON
RATING AND CHARACTERISTIC CURVES ( 1N4942G THRU 1N4948G )
JUNCTION CAPACITANCE,
(pF
)
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
REVERSE VOLTAGE, ( V )
200
100
60
40
20
10
6
4
2
1
.1
.2
.4
1.0
2
4
10
20 40
100
TJ = 25
FIG. 1 - TYPICAL FORWARD
AVERAGE FORWARD CURRENT, (A)
AMBIENT TEMPERATURE, ( )
CURRENT DERATING CURVE
1.50
1.25
1.00
.75
.50
.25
25
50
75
100
125
150
175
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
0
FIG. 2 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT, (A)
INSTANTANEOUS FORWARD VOLTAGE, (V)
Pulse Width = 300us
1% Duty Cycle
10
1.0
.1
.01
.4
.6
.8
1.0
1.2
1.4
1.6
TJ = 25
FIG. 3 - MAXIMUM NON-REPETITIVE FORWARD
FORWARD SURGE CURRENT, (A)
NUMBER OF CYCLES AT 60Hz
SURGE CURRENT
1
2
4
6 8 10
20
40 60 80100
50
40
30
20
10
0
8.3ms Single Half Sine-Wave
(JEDED Method)
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT, (uA)
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
TJ = 25
TJ = 75
TJ = 125
20
10
1.0
.1
.01
0
20
40
60
80 100 120 140
trr
+0.5A
0
-0.25A
-1.0A
1cm
SET TIME BASE FOR
50/100 ns/cm
FIG. 6 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY
50
NONINDUCTIVE
10
NONINDUCTIVE
D.U.T
25 Vdc
(approx)
( - )
( - )
( + )
( + )
1
NON-
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
PULSE
GENERATOR
(NOTE 2)
NOTES:
1 Rise Time = 7ns max. Input Impedance =
1 megohm. 22pF.
2. Rise Time = 10ns max. Source Impedance =
50 ohms.
TIME CHARACTERISTIC
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