BYTES 1N4937, 1N4935, 1N4933, 1N4936, 1N4934 Datasheet
1N4933 1N4937THRU
1.0 AMP FAST RECOVERY RECTIFIERS
FEATURES
VOLTAGE RANGE
50 to 600 Volts
CURRENT
1.0 Ampere
* Low forward voltage drop
* Low leakage current
* High reliability
* High current capability
.080(2.0)
DIA.
DO-41
.107(2.7)
MECHANICAL DATA
* 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
.034(.9)
.028(.7)
DIA.
Dimensions in inches and (millimeters)
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
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 , TJ STG
1N4933 1N4934 1N4935 1N4936 1N4937
50 100 200 400 600
35 70 140 280 420
50 100 200 400 600
1.0
30
1.2
5.0
100
200
15
-65 +150
1.0(25.4)
MIN.
.205(5.2)
.166(4.2)
1.0(25.4)
MIN.
UNITS
V
V
V
A
A
V
µA
µA
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.
84
RATING AND CHARACTERISTIC CURVES (1N4933 THRU 1N4937)
FIG.1-TYPICAL FORWARD
CHARACTERISTICS
50
10
3.0
1.0
Tj=25 C
Pulse Width 300us
1% Duty Cycle
0.1
INSTANTANEOUS FORWARD CURRENT,(A)
.01
.6 .8 1.0 1.2 1.4 1.6 1.8 2.0
FORWARD VOLTAGE,(V)
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
10K
2W
115Va
60Hz
C P CLARE
HPG1002
30Vdc
CONSTANT VOLTAGE
SUPPLY
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 Hµ
1
8
7
2
6
3
4
5
1 AMP
SLO-BLO
FUSE
C1
1.0 F
300V
MINIMIZE ALL LEAD LENGTHS
µ
R1
3
25W
Ω
30 /50W
Ω
NON-INDUCTIVE
UNIT
UNDER TEST
R2
Ω
1 /10W
NONINDUCTIVE
+10
0
A
Ω
C1
1.0 F
300V
µ
1.0Adc FROM
CONSTANT
VOLTAGE SUPPLY
RIPPLE=3mVrms MAX.
1
Ω
Zout 1 / MAX.
2
DC To 2KHz
FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE
1.2
1.0
0.8
0.6
0.4
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
0.375"(9.5mm) Lead Length
0.2
AVERAGE FORWARD CURRENT,(A)
0
0 20 40 60 80 100 120 140 160 180 200
AMBIENT TEMPERATURE,( C)
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
30
24
18
Tj=25 C
12
8.3ms Single Half
Sine Wave
JEDEC method
6
PEAK FORWARD SURGE CURRENT,(A)
0
1 10 5
NUMBER OF CYCLES AT 60Hz
FIG.5-TYPICAL JUNCTION CAPACITANCE
35
30
50
100
IFM 1.0
IRM(REC) 2.0
25
i(t)
di/dt=50A/ Sµ
trr
0
1cm
SET TIME BASE FOR
50 / 100ns / cm
20
15
10
JUNCTION CAPACITANCE,(pF)
5
0
.01 .05 .1 .5 1 5 10 50 100
REVERSE VOLTAGE,(V)
85
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