1N4933 THRU 1N4937
FAST RECOVERY RECTIFIER
Reverse Voltage - 50 to 600 Volts Forward Current - 1.0 Ampere
FEATURES
MECHANICAL DATA
* The plastic package carries Underwriters Laboratory
Flammability Classification 94V-0
* Low cost
* Low leakage
* Low forward voltage drop
* High current capability
Case : JEDEC DO-204AL molded plastic
Terminals : Plated axial leads , solderable per MIL-STD-750,
Method 2026
Polarity : Color band denotes cathode end
Mounting Position : Any
Weight : 0.012 ounes , 0.3 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
o
C ambient temperature
unless otherwise specified.
Maximum repetitive peak reverse voltage
Maximum average forward rectified current
0.375" (9.5mm) lead length at T
L
=75
o
C
Peak forward surge current 8.3ms single half sine-wave
superimposed on rated load (JEDEC Method)
Maximum instantaneous forward voltage at 1.0 A
Maximum DC reverse current
at rated DC blocking voltage
T
A
=25
o
C
T
A
=100
o
C
Maximum reverse recovery time (NOTE 1)
Typical junction capacitance (NOTE 2)
Operating junction and storage temperature range
SYMBOLS
V
RRM
I
(AV)
I
FSM
V
F
I
R
trr
C
J
T
J
,T
STG
1N4933
1N4934
1N4935
1N4936
1N4937
50
100
200
400
600
1.0
30
1.2
5.0
100
200
15
-65 to +150
UNITS
Volts
Maximum RMS voltage
V
RMS
35
70
140
280
420
Volts
Maximum DC blocking voltage
V
DC
50
100
200
400
600
Volts
Volts
Amps
Amps
uA
nS
pF
o
C
NOTES : (1) Test condition : I
F
= 1.0A, V
R
= 30 V
(2) Measured at 1.0 MHz and applied reverse voltage of 4.0 Volts
Zowie Technology Corporation
REV. : 0
1
.
0
(
2
5
.
4
)
M
I
N
.
1
.
0
(
2
5
.
4
)
M
I
N
.
DO-204AL
*Dimensions in inches and (millimeters)
0.107(2.7)
0.034(0.86)
0.028(0.71)
0
.
2
0
5
(
5
.
2
)
0
.
1
6
0
(
4
.
1
)
0.080(2.0)
DIA.
DIA.
RATINGS AND CHARACTERISTIC CURVES 1N4933 THRU 1N4937
Zowie Technology Corporation
REV. : 0
FIG.1 - FORWARD CURRENT DERATING CURVE
FIG.3 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
A
V
E
R
A
G
E
F
O
R
W
A
R
D
R
E
C
T
I
F
I
E
D
C
U
R
R
E
N
T
,
A
M
P
E
R
E
S
1.2
1.0
0.8
0.6
0.4
0.2
I
I
N
S
T
A
N
T
A
N
E
O
U
S
F
O
R
W
A
R
D
C
U
R
R
E
N
T
,
A
M
P
E
R
E
S
0.10
1.00
10.00
0.01
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
0
25
50
75
100
125
150
175
60Hz
RESISTIVE OR
INDUCTIVE LOAD
PULSE WIDTH=300uS
1% DUTY CYCLE
AMBIENT TEMPERATURE,
o
C
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
0.375" (9.5mm) LEAD LENGTH
FIG.2 - MAXIMUM NON-REPETITIVE
PEAK FORWARD SURGE CURRENT
P
E
A
K
F
O
R
W
A
R
D
S
U
R
G
E
C
U
R
R
E
N
T
,
A
M
P
E
R
E
S
NUMBER OF CYCLES AT 60Hz
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
0
10
20
30
40
50
1
10
100
T
J
= 25
o
C
FIG.5 - TYPICAL JUNCTION CAPACITANCE
FIG.5 - TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
T
J
= 25
o
C
REVERSE VOLTAGE, VOLTS
.1
1
J
U
N
C
T
I
O
N
C
A
P
A
C
I
T
A
N
C
E
,
p
F
40
200
.2
.4
1.0
2
4
10
20 40
100
2
4
10
6
20
60
100
OR EQUIVALENT IN PARALLEL
R1 - ADJUSTED FOR 1.4 BETWEEN
PONT 2 OF RELAY AND RECTIFIER
INDUCTIVE = 3.8uH
R2 - TEN - 1 W 10 % CARBON CORE
TA = 25 FOR RECTIFIER
IFM1.0
i ( t ) di/dt = 50A/us
0
IRM(REV)
trr
SET TIME BASE FOR
50/100 nS/cm
115 Va
60 H
Z
10 K
2 W
1
2
3
4
5
6
7
8
38uH/1.4
C.P. CLARE
HPG 1002
30 Vdc
CONSTANT VOLTAGE
SUPPLY
MINIMIZE ALL LEAD LENGTHS
1 AMP
SLO-BLO
FUSE
1.0Adc FROM
CONSTANT
VOLTAGE SUPPLY
RIPPLE=3mVrms MAX.
Zout 11/2 MAX.
DC to 2kHz
30
50W
NON-INDUCTIVE
UNIT
UNDER TEST
C 1
1.0 uF
300 V
C 1
1.0uF
300V
R2
1
10W
NON-
INDUCTIVE
+10
o
C
-0
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