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FM4934 Datasheet(PDF) 2 Page - Leshan Radio Company

Part # FM4934
Description  1A FAST RECOVERY SMA DIODES
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Manufacturer  LRC [Leshan Radio Company]
Direct Link  http://www.lrc.cn/
Logo LRC - Leshan Radio Company

FM4934 Datasheet(HTML) 2 Page - Leshan Radio Company

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LESHAN RADIO COMPANY, LTD.
48A–2/2
FM4933 – FM4937
1A
RATING & CHARACTERISTIC CURVES OF 1A FAST RECOVERY SMA DIODES
SET TIME BASE
FOR 50/100ns/cm
FIG.1-REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
Trr
I
FM
I
RM(REC)
i(t) di/dt=50A/
µs
1cm
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 =38
µH
1.0Adc FROM
CONSTANT
VOLTAGE SUPPLY
RIPPLE=3mVrms MAX
115Va 10K
60Hz 2W
1
7
6
8
5
3
2
C.P.CLARE
HPG1002
30
Ω¸50W
NON INDUCTIVE
30Vdc
CONSTANT VOLTAGE
SUPPLY
3
Ω¸25W
1 AMP
SLO BLO
FUSE
C1
I.0
µF
300V
UNIT
UNDER TEST
R2
1
Ω¸
10W
NON
INSUCTIVE
Zout 1.5
Ω¸ MAX
DC to 2KHz
R2 TEN 1W 10
Ω¸% CARBON CORE
IN PARALLEL
+10
TA 25 O ºC FOR RECTIFIER
MINIMIZE ALL LEAS LENGTHS
4
Resistive or
Inductive Load
0.375”(9.5mm)
Lead lengths
FIG. 2 - TYPICAL FORWARD
CURRENT DERATING CURVE
AMBIENT TEMPER ATURE, (ºC)
0
25
50
75
100
125
150
175
0.5
0.4
0.3
0.2
0.1
0
INSTANTANEOUS FORWARD VOLTAGE,(V)
.6
.8
1.0
1.2
1.4
1.6
1.8
2.0
T
J =25ºC
Pulse Width =300
µs
2% Duty Cycle
FIG.3-TYPICAL FORWARD CHARACTERISTICS
10
1
.1
.01
10
5
1
FIG.4-TYPICAL JUNCTION CAPACITANCE
1
5
10
50
100
REVERSE VOLTAGE,(V)
TJ = 25ºC
20
10
1
.1
.01
TJ =125ºC
FIG.5-TYPICAL REVERSE CHARACTERISTICS
TJ =75ºC
PERCENT OF RATED PEAK REVERSE VOLTAGE,(%)
0
20
40
60
80
100
120
140
TJ =25ºC


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