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CHENMKO ENTERPRISE CO.,LTD
SURFACE MOUNT
SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 20 - 60 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
SSM22PT THRU SSM26PT
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) 0.008 (0.203)(max) 0.212(5.40) 0.189(4.80)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 C ambient temperature unless otherwise specified. Single phase, half wave, 60 HZ, resistive or inductive load. For capacitive load, derate current by 20%.
o
Dimensions in inches and (millimeters)
SMA
SSM26PT 60 42 60 UNITS Volts Volts Volts Amps Amps 110 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 Temperature Range Storage Temperature Range SYMBOL VRRM VRMS VDC IO IFSM CJ R
JL
SSM22PT 20 14 20
SSM23PT 30 21 30
SSM24PT 40 28 40 2.0 50
SSM25PT 50 35 50
210 20 -65 to +125 -65 to +150
C/W
o o
TJ TSTG
-65 to +150
C 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
SSM22PT
SSM23PT 0.55
SSM24PT
SSM25PT
SSM26PT
UNITS Volts mAmps mAmps 2002-5
0.70 0.5 10
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 ( SSM22PT THRU SSM26PT )
INSTANTANEOUS FORWARD CURRENT, ( A ) FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE AVERAGE FORWARD CURRENT, (A) 2.0 FIG. 2 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 20 10
TJ =25oC Pulse Width=300us 1% Duty Cycle
1.5
S 2PT~ SSM2
SSM T~ 25P
1.0
1.0
0.5
Single Half Wave 60HZ Resistive or Inductive Load
SSM22PT SSM23PT SSM24PT SSM25PT SSM26PT
SSM
SM24 PT
T 26P
0 0 25 50 75 100 125
o
150
175
0.1 0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.2
LEAD TEMPERATURE, ( C ) FIG. 3A - TYPICAL REVERSE CHARACTERISTICS 100 INSTANTANEOUS REVERSE CURRENT, (mA)
INSTANTANEOUS FORWARD VOLTAGE,(V) FIG. 3B - TYPICAL REVERSE CHARACTERISTICS 100
10
TJ = 125oC
INSTANTANEOUS REVERSE CURRENT, (mA)
SSM22PT~SSM24PT
SSM25PT~SSM26PT
10
1.0
TJ = 75oC
1.0
TJ = 150oC
TJ = 125oC
.10
.10
TJ = 75oC
.01
TJ = 25oC
.01
TJ = 25oC
.001
0
20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE, ( % ) FIG. 4 - TYPICAL JUNCTION CAPACITANCE
.001
0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE, ( % ) FIG. 5 - MAXIMUM NON-REPETIVE FORWARD SURGE CURRENT
500 JUNCTION CAPACITANCE, ( pF ) 300 100 80 60 40 20 10 .1 .4 1.0 4 10 40 80 REVERSE VOLTAGE, ( V )
PEAK FORWARD SURGE CURRETN(A)
60 50
8.3ms Single Half Sine-Wave (JEDEC Method)
TJ =25oC
40 30 20 10 0 1 2 4 6 8 10 20 40 80 100 NUMBER OF CYCLES AT 60 Hz
SSM22PT~SSM24PT SSM25PT~SSM26PT

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