LRC 1N4937, 1N4936, 1N4935, 1N4934, 1N4933 Datasheet
1A
1A FAST RECOVERY DIODES
LESHAN RADIO COMP ANY , LTD.
1N4933 – 1N4937
TYPE
1N4933
1N4934
1N4935
1N4936
1N4937
Trr I F = 0.5A, I R = 1.0A, I
Trr Test Conditions: I F = 0.5A, I R = 1.0A, I
Maximum
Peak Reverse
Voltage
PRV
V
PK
50
100
200
400
600
Resistive Load 60Hz
1.0
= 0.25A
RR
Maximum Average
Rectified Current
@ Half-Wave
I O @ T
L
A
ºC
AV
75 30 5.0 1.0 1.2 150
= 0.25A
RR
Maximum
Forward Peak
Surge Current @
8.3ms Superimposed
I
(Surge)
FM
A
1.0(25.4)
MIN
.034(0.9)
DIA
.028(0.7)
PK
.205(5.2)
.166(4.2)
DO – 41
Maximum
Reverse
Current @ PRV
@ TA=25ºC
I
R
µAdc
1.0(25.4)
MIN
.107(2.7)
.080(2.0)
Maximum
@ TA=25ºC
I
FM
A
PK
DIA
Forward
Voltage
V
FM
V
PK
Maximum
Reverse
Recovery Time
Trr
ns
Package
Dimensions
DO – 41
13A–1/2
LESHAN RADIO COMP ANY , LTD.
1N4933 – 1N4937
RATING & CHARACTERISTIC CURVES OF FAST RECOVERY DIODES
FIG.1 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
30Ω¸50W
38µH/1.4Ω¸
1
115Va 10K
60Hz 2W
C.P.CLARE
HPG1002
8
7
6
30Vdc
CONSTANT
VOLTAGE
SUPPLY
4
5
MINIMIZE ALL LEAS LENGTHS
2
3
1 AMP
SLO BLO
FUSE
C
I.0µF
300V
1
A TEKTRONIX 545A.K PLUG IN PRE AMP
P6000 PROBE OR EQUIVALENT
R1 ADJUSTED FOR 1.4 Ω¸ BETWEEN
POINT 2 OF RELAY AND RECTIFIER
INDUCTIVE =38µH
NON
INDUCTIVE
UNIT
UNDER TEST
R
2
1Ω¸
10W
NON
INSUCTIVE
1.0Adc FROM
CONSTANT
VOLTAGE SUPPLY
RIPPLE=3mVrms MAX
Zout 1.5Ω¸ MAX
DC to 2KHz
R2 TEN 1W 10Ω¸% CARBON CORE
IN PARALLEL
+10
TA 25
ºC FOR RECTIFIER
O
Trr
0
i(t) di/dt=50A/µs
SET TIME BASE
1cm
FOR 50/100ns/cm
IFM 1.0
IRM(REC)
FIG. 2 – TYPICAL FORWARD
CURRENT DERATING CURVE
1.0
.8
FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS
20
10
TJ =25ºC
1.0
0.1
INSTANTANEOUS FORWARD CURRENT,(A)
.01
.6 .8 1.0 1.2 1.4
INSTANTANEOUS FORWARD VOLTAGE,(V)
FIG. 4 - MAXINUM NON-REPETITIVE
Pulse Width=300µs
1% Duty Cycle
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
FOWARD SURGE CURRENT
50
8.3ms Single Half Sine-Wave
40
30
20
10
PEAK FORWARD SURGE CURRENT,(A)
0
1 2 4 6 8 10 20 40 60 80 100
NUMBER OF CYCLES AT 60Hz
(JEDEC Method)
200
100
60
40
20
10
6
4
JUNCTION CAPACITANCE,(pF)
2
1
.1 .2 .4 1.0 2 4 10 20 40 100
.6
.4
Single Phase
.2
Half Wave 60Hz
Resistive or
Inductive Load
0
AVERAGE FORWARD CURRENT,(A)
0 50 100 150 175
AMBIENT TEMPER ATURE, (ºC)
TJ =25ºC
REVERSE VOLTAGE,(V)
13A–2/2
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