FM3 データシートの表示（PDF） - Leshan Radio Company,Ltd
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FM3 Datasheet PDF : 2 Pages
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LESHAN RADIO COMPANY, LTD.
FM4933 – FM4937
1A
RATING & CHARACTERISTIC CURVES OF 1A FAST RECOVERY SMA DIODES
FIG.1-REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
8
1
3Ω¸25W
30Ω¸50W
NON INDUCTIVE
115Va 10K
2
60Hz 2W
7
6
C.P.CLARE
5
4
HPG1002
30Vdc
CONSTANT VOLTAGE
SUPPLY
3
1 AMP
SLO BLO
FUSE
C1
I.0µF
300V
UNIT
UNDER TEST
R2
1Ω¸
10W
NON
INSUCTIVE
1.0Adc FROM
CONSTANT
VOLTAGE SUPPLY
RIPPLE=3mVrms MAX
MINIMIZE ALL LEAS LENGTHS
Zout 1.5Ω¸ MAX
DC to 2KHz
IFM
IRM(REC)
i(t) di/dt=50A/ µs
Trr
1cm
SET TIME BASE
FOR 50/100ns/cm
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
R2 TEN 1W 10Ω¸% CARBON CORE
IN PARALLEL
TA
25
+10
O
ºC
FOR RECTIFIER
FIG.3-TYPICAL FORWARD CHARACTERISTICS
10
FIG. 2 - TYPICAL FORWARD
CURRENT DERATING CURVE
0.5
1
0.4
0.3
0.2
0.1 Resistive or
Inductive Load
0.375”(9.5mm)
Lead lengths
0
0
25
50
75
100 125
150
175
AMBIENT TEMPER ATURE, (ºC)
FIG.4-TYPICAL JUNCTION CAPACITANCE
10
.1
.01
.6
T =25ºC
J
Pulse Width =300µs
2% Duty Cycle
.8
1.0 1.2 1.4 1.6
1.8 2.0
INSTANTANEOUS FORWARD VOLTAGE,(V)
FIG.5-TYPICAL REVERSE CHARACTERISTICS
20
10
TJ =125ºC
TJ = 25ºC
5
1
1
5
10
50
100
REVERSE VOLTAGE,(V)
1
TJ =75ºC
.1
TJ =25ºC
.01
0
20
40 60
80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE,(%)
48A–2/2
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