1.0 AMP FAST RECOVERY RECTIFIERS
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating 25 C ambient temperature uniess otherwies specified.
Single phase half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
TYPE NUMBER
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
.375"(9.5mm) Lead Length at Ta=75 C
FEATURES
MECHANICAL DATA
Peak Forward Surge Current, 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Maximum Instantaneous Forward Voltage at 1.0A
Maximum DC Reverse Current Ta=25 C
at Rated DC Blocking Voltage Ta=100 C
Maximum Reverse Recovery Time (Note 1)
Typical Junction Capacitance (Note 2)
Operating and Storage Temperature Range T , T
J
STG
1.0
30
5.0
100
200
15
-65 +150
A
V
A
A
nS
pF
C
NOTES:
1. Reverse Recovery Time test condition:IF=1.0A, VR=30V.
2. Measured at 1MHz and applied reverse voltage of 4.0V D.C.
* Low forward voltage drop
* Low leakage current
* High reliability
* High current capability
* Case: Molded plastic
* Epoxy: UL 94V-0 rate flame retardant
* Lead: Axial leads, solderable per MIL-STD-202,
method 208 guranteed
* Polarity: Color band denotes cathode end
* Mounting position: Any
* Weight: 0.34 grams
1N4933
1N4937
THRU
1.2
V
V
UNITS
V
1N4933 1N4934 1N4935 1N4936 1N4937
50 100 200 400 600
50 100 200 400 600
35 70 140 280 420
VOLTAGE RANGE
CURRENT
1.0 Ampere
A
50 to 600 Volts
DO-41
Dimensions in inches and (millimeters)
1.0(25.4)
MIN.
1.0(25.4)
MIN.
.205(5.2)
.166(4.2)
.034(.9)
.028(.7)
DIA.
.107(2.7)
.080(2.0)
DIA.
0.1
1.0
.01
10
50
RATING AND CHARACTERISTIC CURVES (1N4933 THRU 1N4937)
CHARACTERISTICS
FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE
A
V
E
R
A
G
E
F
O
R
W
A
R
D
C
U
R
R
E
N
T
,
(
A
)
FIG.5-TYPICAL JUNCTION CAPACITANCE
REVERSE VOLTAGE,(V)
J
U
N
C
T
I
O
N
C
A
P
A
C
I
T
A
N
C
E
,
(
p
F
)
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
)
FORWARD VOLTAGE,(V)
Pulse Width 300us
1% Duty Cycle
0.2
0.4
0.6
0.8
1.0
1.2
35
30
25
20
15
10
5
0
IFM 1.0
0
IRM(REC) 2.0
1cm
SET TIME BASE FOR
50 / 100ns / cm
.01 .05 .1 .5 1 5 10 50 100
.6 .8 1.0 1.2 1.4 1.6 1.8 2.0
3.0
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
Tj=25 C
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
0.375"(9.5mm) Lead Length
10K
2W
115Va
60Hz
1
2
3
4
8
7
6
5
C P CLARE
HPG1002
30Vdc
CONSTANT VOLTAGE
SUPPLY
C1
1.0 F
300V
C1
1.0 F
300V
1.0Adc FROM
CONSTANT
VOLTAGE SUPPLY
RIPPLE=3mVrms MAX.
1 AMP
SLO-BLO
FUSE
R1
3
25W
R2
1 /10W
NON-
INDUCTIVE
UNIT
UNDER TEST
30 /50W
NON-INDUCTIVE
Zout 1 / MAX.
DC To 2KHz
1
2
MINIMIZE ALL LEAD LENGTHS
A
A-TEKTRONIX 545A. K PLUG IN R2- TEN 1W 10 1% CARBON CORE
PRE AMP P6000 PROBE OR EQUIVALENT IN PARALLEL
R1- ADJUSTED FOR 14 BETWEEN
POINT 2 OF RELAY AND RECTIFIER TA= 25 C FOR RECTIFIER
INDUCTIVE=3.8 H
+10
0
trr
i(t)
di/dt=50A/ S
0 20 40
60 80 100 120 140 160 180 200
0
FIG.1-TYPICAL FORWARD
AMBIENT TEMPERATURE,( C)
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
6
0
12
18
24
30
NUMBER OF CYCLES AT 60Hz
1
10
5
50
100
Tj=25 C
8.3ms Single Half
Sine Wave
JEDEC method
P
E
A
K
F
O
R
W
A
R
D
S
U
R
G
E
C
U
R
R
E
N
T
,
(
A
)
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