CHENMKO ENTERPRISE CO.,LTD
SURFACE MOUNT
SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 20 - 40 Volts CURRENT 2.0 Amperes
FEATURES
* Plastic package has Underwriters Laboratory Flammability Classification 94V-0 * For surface mounted applications * Low profile package * Built-in strain relief * Metal silicon junction, majority carrier conduction * Low power loss, high efficiency * High current capability, low forward voltage drop * High surge capability * For use in low voltage high frequency inverters, free wheeling, and polarity protection applications * High temperature soldering guaranteed : 260oC/10 seconds at terminals
S SM22LPT THRU SSM24LPT
SMA
0.110(2.80) 0.094(2.40)
(1)
0.065(1.65) 0.049(1.25) 0.181(4.60) 0.165(4.20) 0.012(0.310) 0.006(0.150)
(2)
MECHANICAL DATA
Case: JEDEC SMA molded plastic Terminals: Solder plated, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Weight: 0.002 ounce 0.064 gram
0.090(2.30) 0.075(1.90) 0.060(1.52) 0.030(0.76) 0.212(5.40) 0.189(4.80) 0.008 (0.203)(max)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25oC ambient temperature unless otherwise specified. Single phase, half wave, 60 HZ, resistive or inductive load. For capacitive load, derate current by 20%.
Dimensions in inches and (millimeters)
SMA
UNITS Volts Volts Volts Amps Amps pF
o
MAXIMUM RATINGES ( At TA = 25oC unless otherwise noted ) RATINGS Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current Peak Forward Surge Current 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Typical Junction Capacitance (Note 2) Typical Thermal Resistance (Note 1) Operating and Storage Temperature Range SYMBOL VRRM VRMS VDC IO IFSM CJ R
JL
SSM22LPT 20 14 20
SSM23LPT 30 21 30 2.0 60 250 20 -65 to +125
SSM24LPT 40 28 40
C/W
o
TJ,TSTG
C
ELECTRICAL CHARACTERISTICS ( At TA = 25oC unless otherwise noted ) CHARACTERISTICS Maximum Instantaneous Forward Voltage at 2.0 A DC Maximum Average Reverse Current at Rated DC Blocking Voltage @ TA = 25oC IR @ TA = 100 C
o
SYMBOL VF
SSM22LPT
SSM23LPT 0.40 1.0 10
SSM24LPT
UNITS Volts mAmps mAmps 2001-6
NOTES : 1. Thermal Resistance ( Junction to Lead ) : PC Board Mounted on 0.2 X 0.2" ( 5 X 5mm ) copper pad area. 2. Measured at 1.0 MHZ and applied reverse voltage of 4.0 volts.
RATING CHARACTERISTIC CURVES ( SSM22LPT THRU SSM24LPT )
INSTANTANEOUS FORWARD CURRENT, ( A ) FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE AVERAGE FORWARD CURRENT, (A) 2.00 FIG. 2 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 20 10
1.50
1.00
1.0
.50
Single Half Wave 60HZ Resistive or Inductive Load
0 0 25 50 75 100 125
o
150
175
0.1
TJ =25oC Pulse Width=300us 1% Duty Cycle
0
.1
.2
.3
.4
.5
.6
.7
.8
.9
1.0
LEAD TEMPERATURE, ( C ) FIG. 3 - TYPICAL REVERSE CHARACTERISTICS 100 INSTANTANEOUS REVERSE CURRENT, (mA)
INSTANTANEOUS FORWARD VOLTAGE,(V) FIG. 4 - MAXIMUM NON-REPETIVE FORWARD SURGE CURRENT 75
PEAK FORWARD SURGE CURRETN(A)
10
60
8.3ms Single Half Sine-Wave (JEDEC Method)
1.0
TJ = 100oC
45
.10
30
.01
TJ = 25oC
15
.001 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE, ( % )
0 1 2 4 6 8 10 20 40 80 100 NUMBER OF CYCLES AT 60 Hz
FIG. 5 - TYPICAL JUNCTION CAPACITANCE 5000 JUNCTION CAPACITANCE, ( pF )
TJ = 25oC
1000
100 .1 .4 1.0 4 10 40 80 REVERSE VOLTAGE, ( V )
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