RECOVERY RECTIFIERS. 1N4937 Datasheet

1N4937 RECTIFIERS. Datasheet pdf. Equivalent


Part 1N4937
Description 1.0 AMP FAST RECOVERY RECTIFIERS
Feature 1N4933 1.0 AMP FAST RECOVERY RECTIFIERS THRU 1N4937 VOLTAGE RANGE 50 to 600 Volts CURRENT FEATUR.
Manufacture Formosa MS
Datasheet
Download 1N4937 Datasheet


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1N4937
1N4933 THRU 1N4937
1.0 AMP FAST RECOVERY RECTIFIERS
FEATURES
* Low forward voltage drop
* Low leakage current
* High reliability
* High current capability
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
VOLTAGE RANGE
50 to 600 Volts
CURRENT
1.0 Ampere
DO-41
.107(2.7)
.080(2.0)
DIA.
1.0(25.4)
MIN.
.205(5.2)
.166(4.2)
.034(.9)
.028(.7)
DIA.
1.0(25.4)
MIN.
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 TJ, TSTG
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.
1N4933
50
35
50
1N4934
100
70
100
1N4935
200
140
200
1N4936
400
280
400
1N4937
600
420
600
UNITS
V
V
V
1.0 A
30
1.2
5.0
100
200
15
-65 +150
A
V
mA
mA
nS
pF
C



1N4937
RATING AND CHARACTERISTIC CURVES (1N4933 THRU 1N4937)
FIG.1-TYPICAL FORWARD
CHARACTERISTICS
50
10
3.0
1.0
0.1
Tj=25 C
Pulse Width 300us
1% Duty Cycle
FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE
1.2
1.0
0.8
0.6
0.4
0.2
0
0
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
0.375"(9.5mm) Lead Length
20 40
60 80 100 120 140
AMBIENT TEMPERATURE,( C)
160 180 200
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
.01
.6
.8 1.0 1.2 1.4 1.6 1.8 2.0
FORWARD VOLTAGE,(V)
30
24
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
10K
115Va
60Hz
2W
81
2
7
R1
3W
3 25W
C P CLARE 6
HPG1002
5
4
1 AMP
SLO-BLO
FUSE
30Vdc
CONSTANT VOLTAGE
SUPPLY
C1
1.0mF
300V
30W/50W
NON-INDUCTIVE
UNIT
UNDER TEST
A
R2
1W/10W
NON-
INDUCTIVE
C1
1.0mF
300V
MINIMIZE ALL LEAD LENGTHS
1.0Adc FROM
CONSTANT
VOLTAGE SUPPLY
RIPPLE=3mVrms MAX.
Zout 11/2WMAX.
DC To 2KHz
A-TEKTRONIX 545A. K PLUG IN
PRE AMP P6000 PROBE OR EQUIVALENT
R1- ADJUSTED FOR 14 BETWEEN
POINT 2 OF RELAY AND RECTIFIER
INDUCTIVE=3.8mH
R2- TEN 1W 10W 1% CARBON CORE
IN PARALLEL
TA=
25
+10
0
C FOR RECTIFIER
18
12
6
0
1
35
30
Tj=25 C
8.3ms Single Half
Sine Wave
JEDEC method
5 10
NUMBER OF CYCLES AT 60Hz
50
100
FIG.5-TYPICAL JUNCTION CAPACITANCE
IFM 1.0
i(t)
di/dt=50A/mS
trr
0
25
20
15
10
IRM(REC) 2.0
1cm
SET TIME BASE FOR
50 / 100ns / cm
5
0
.01
.05 .1
.5 1
5 10
REVERSE VOLTAGE,(V)
50 100







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