Document
SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS
FEATURES
●For surface mounted applications ●Metal-Semiconductor junction with guarding ●Epitaxial construction ●Very low forward votage drop ●High current capability ●Plastic material has UL flammability
classification 94V-0 ●For use in lowvoltage, high frequency inverters,
free wheeling, and polarity protection applications.
MECHANICAL DATA
●Case: Molded Plastic ●Polarity: lndicated by cathode band ●Weight: 0.002 ounces,0.064 grams
SS32A thru SS310A
REVERSE VOLTAGE - 20 to100 Volts FORWARD CURRENT - 3.0 Amperes
SMA
.062(1.60) .055(1.40)
.181(4.60) .157(4.00)
.103(2.62) .079(2.00)
.060(1.52) .030(0.76)
.208(5.28) .188(4.80)
.114(2.90) .098(2.50)
.012(.305) .006(.152)
.008(.203) .002(.051)
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating at 25℃ ambient temperature unless otherwise specified. Single phase, half wave ,60Hz, resistive or inductive load. For capacitive load, derate current by 20%
CHARACTERISTICS
SYMBOL SS32A
Maximum Recurrent Peak Reverse Voltage
VRRM
20
Maximum RMS Voltage
VRMS
14
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current Peak Forward Surage Current
@TL=100 ℃
8.3ms Single Half Sine-Wave Super Imposed On Rated Load (JEDEC Method) Maximum Forward Voltage at 3.0A DC
Maximum DC Reverse Current at Rated DC Blocking Voltage
@TJ=25℃ @TJ=100℃
Typical Junction Capacitance (Note1)
VDC I(AV)
20
IFSM
VF IR CJ
0.45
Typical Thermal Resistance (Note2)
RθJL
Typical Thermal Resistance (Note3)
RθJA
Operating Temperature Range
TJ
Storage Temperature Range
TSTG
NOTES:1.Measured at 1.0 MHz and applied reverse voltage of 4.0V DC.
2.Thermal resistance junction to lead.
3.Thermal resistance junction to ambient.
SS33A 30 21 30
0.55
SS34A 40 28 40
SS35A 50 35 50
SS36A 60 42 60
3.0
80
0.6 0.7 1.0 20 250 10 50
-55 to + 150 -55 to + 175
SS38A SS310A 80 100 56 70 80 100
0.85
UNIT V V V A
A
V mA pF ℃/W ℃/W ℃ ℃
~ 165 ~
RATING AND CHARACTERTIC CURVES SS32A thru SS310A
AVERAGE FORWARD CURRENT AMPERES
INSTANTANEOUS FORWARD CURRENT, (A)
FIG. 1 - FORWARD CURRENT DERATING CURVE 5.0
4.0
3.0
2.0
SINGLE PHASE HALF WAVE 60Hz 1.0 RESISTIVE OR INDUCTIVE LOAD
0 25
50 75 100 125 150 LEAD TEMPERATURE ℃
175
FIG.3-TYPICAL FORWARD CHARACTERISTICS 20
SS32A
10 SS33A
SS34A
SS35A -SS36A
PEAK FORWARD SURGE CURRENT, AMPERES
FIG.2 - MAXIMUM NON-REPETITIVE SURGE CURRENT
120
100
80 60
40 PULSE WIDTH 8.3ms SINGLE HALF-SINE-WAVE
20 (JEDEC METHOD)
0 1
2
5 10 20
50
NUMBER OF CYCLES AT 60Hz
100
1000
FIG.4-TYPICAL JUNCTION CAPACITANCE
100
CAPACITANCE,(PF)
1.0 SS38A -SS310A
TJ = 25°C PULSE WIDTH 300us
1% DUTY CYCLE
0.1 0 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 INSTANTANEOUS FORWARD VOLTAGE, (VOLTS)
10 0.1
TJ=25℃ f=1MHZ
1.0 4.0 10.0 REVERSE VOLTAGE,VOLTS
FIG.5-TYPICAL REVERSE CHARACTERISTICS 100
TJ=125℃ 10
TJ=100℃
1.0
100
INSTANTANEOUS REVERSE CURRENT, (mA )
0.1
0.01
TJ=25℃
0.001 0 20 40 60 80 100 120 140
PERCENT RATED PEAK REVERSE VOLTAGE,(%)
~ 166 ~
.