SS34LT SMAFL

SS34LT
R
LOW VF SCHOTTKY BARRIER RECTIFIER
Reverse Voltage - 40 Volts
Forward Current - 3.0Amperes
S E M I C O N D U C T O R
SMAFL
FEATURES
Plastic package has Underwriters Laboratory Flammability Classification 94V-0
0.057(1.45 )
Metal silicon junction ,majority carrier conduction
0.053(1.35)
Guard ring for overvoltage protection
Low power loss ,high efficiency
Pb
High current capability ,low forward voltage drop
High surge capability
RoHS
COMPLIANT
High temperature soldering guaranteed:260℃/10 seconds at terminals
Component in accordance to RoHS 2011/65/EU and
0.008(0.20)
MAX
WEEE 2012/19/EU
0.106(2.7 )
0.102(2.6)
0.171(4.35 )
0.167(4.25)
0.212(5.4)
0.205(5.2)
5°
0.042(1.08)
0.040(1.02)
MECHANICAL DATA
0.020(0.5)
Case: SMAFL molded plastic body
Terminals: Solder Plated, solderable per MIL-STD-750,method 2026
0.041(1.05)
Polarity: Color band denotes cathode end
Weight: 0.0012ounce, 0.0328 gram
Suggested PAD Layout
0.060(1.52)MIN
0.134(3.42)MAX
TYPICAL APPLICATIONS
For use in low voltage ,high frequency inverters ,DC/DC converters,
free wheeling ,and polarity protection applications
0.041(1.05)MIN
0.217(5.42)REF
Dimensions in inches and (millimeters)
MAXIMUM RATINGS
(Ratings at 25℃ ambient temperature unless otherwise specified )
Symbol
SS34LT
Unit
Maximum repetitive peak reverse voltage
VRRM
40
V
Maximum average forward rectified current
IF(AV)
3.0
A
Peak forward surge current 8.3ms single half
sine-wave superimposed on rated load
(JEDEC method at rated TL)
IFSM
80
A
TJ
-55 to+150
℃
Tstg
-55 to+150
℃
Parameter
Operating junction temperature range
Storage temperature range
JINAN JINGHENG ELECTRONICS CO., LTD.
3-1
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RATINGS AND CHARACTERISTIC OF SS34LT
ELECTRICAL CHARACTERISTCS(TA=25℃ Unless otherwise noted)
Test Conditions
Parameter
Symbol
T A =25℃
Instaneous forward voltage
T A =100℃
I F =3.0A
V F 1)
T A =125℃
0.45
0.47
0.39
0.41
0.37
0.39
60
200
5
10
15
30
T A =25℃
V R =40V
Reverse current
T A =100℃
IR
MAX.
TYP.
2)
Unit
V
μA
mA
T A =125℃
4V,1MHz
Typical junction capacitance
pF
240
CJ
Notes: 1.Pulse test: 300 μs pulse width,1% duty cycle
2.Pulse test: pulse width≤40ms
THERMAL CHARACTERISTCS(TA=25℃ Unless otherwise noted)
Parameter
Symbol
Typical thermal resistance
SS34LT
3)
R
JA
R
JL
Unit
115
℃/W
4)
28
3.Free air,mounted on recommended PCB ,2 oz.pad area
4.The heat generated must be less than thermal conductivity from junction to ambient:dPD/dtJ<1/RθJA
AVAILABALE PACK INFORMATION
Product code
SS34LT-SMA
Quantity
Pack
Reel Size
(mm)
(pcs/reel)
T/R
Φ330
7500
JINAN JINGHENG ELECTRONICS CO., LTD.
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Box Size
L×W×H
(mm)
Quantity
(reel/box)
Carton Size
L×W×H
(mm)
Quantity
(box/carton)
330×35×333
2
364×364×360
8
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RATINGS AND CHARACTERISTIC OF SS34LT
FIG.2-MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
FIG.1-FORWARD CURRENT DERATING CURVE
120
4.0
Resistive or Inductive Load
PEAK FORWARD SURGE
CURRENT(AMPERES)
AVERAGE FORWARD CURRENT
AMPERES
5.0
3.0
2.0
1.0
0
0
20
40
60
80
100
120
TJ=TJMAX
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
100
80
60
40
20
140 150
0
AMBIENT TEMPERATURE (℃)
1
10
100
NUMBER OF CYCLES AT 60Hz
FIG.3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
FIG.4-TYPICAL REVERSE CHARACTERISTICS
200
INSTANTANEOUS REVERSE CURRENT (mA)
INSTANTANEOUS FORWARD CURRENT( AMPERES)
50
TJ=100℃
10
PULSE WIDTH=300 S
1% DUTY CYCLE
1
TJ=125℃
TJ=25℃
0.1
100
TJ=125℃
10
TJ=100℃
1
0.1
TJ=25℃
0.01
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.01
0
INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
20
40
60
80
100
PERCENT OF RATED PEAK REVERSE VOLTAGE%
FIG.5-TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE(pF)
4000
1000
100
0.1
1
10
100
REVERSE VOLTAGE. VOLTS
JINAN JINGHENG ELECTRONICS CO., LTD.
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