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CHENMKO ENTERPRISE CO.,LTD
SURFACE MOUNT
SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 20 - 60 Volts CURRENT 3.0 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 * Lead free devices
SSM32PT THRU SSM36PT
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 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
SSM36PT 60 42 60 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) (SEE FIG.4) Typical Thermal Resistance (Note 1) Operating Temperature Range Storage Temperature Range SYMBOL VRRM VRMS VDC IO IFSM CJ R
JL
SSM32PT 20 14 20
SSM33PT 30 21 30
SSM34PT 40 28 40 3.0 80 250 18
SSM35PT 50 35 50
C/W
o o
TJ TSTG
-65 to +125 -65 to +150
-65 to +150
C C
ELECTRICAL CHARACTERISTICS ( At TA = 25oC unless otherwise noted ) CHARACTERISTICS Maximum Instantaneous Forward Voltage at 3.0 A DC Maximum Average Reverse Current at Rated DC Blocking Voltage @ TA = 25oC IR @ TA = 100 C
o
SYMBOL VF
SSM32PT
SSM33PT 0.55
SSM34PT
SSM35PT
SSM36PT 0.70
UNITS Volts mAmps mAmps 2002-5
0.5 30
NOTES : 1. Thermal Resistance ( Junction to Lead ) : PC Board Mounted on 0.31 X 0.31" ( 8 X 8mm ) copper pad area. 2. Measured at 1.0 MHZ and applied reverse voltage of 4.0 volts.
RATING CHARACTERISTIC CURVES ( SSM32PT THRU SSM36PT )
INSTANTANEOUS FORWARD CURRENT, ( A ) FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE AVERAGE FORWARD CURRENT, (A) 3.0 2.5
SS
32 SSM
FIG. 2 - INSTANTANEOUS FORWARD CURRENT, (A) 20 10
5P M3
2.0 1.5 1.0 0.5 0 0 25 50 75
Single Half Wave 60HZ Resistive or Inductive Load
T~S
LEAD TEMPERATURE, ( C ) FIG. 3 - TYPICAL REVERSE CHARACTERISTICS 50 INSTANTANEOUS REVERSE CURRENT, (mA) 20 10 5 2 1 .5 .2 .10 .05 .02 0 5 10 15 20 25 INSTANTANEOUS REVERSE VOLTAGE, (V) 30
C TJ = 100
o
PEAK FORWARD SURGE CURRETN(A)
JUNCTION CAPACITANCE, ( pF )
34 SSM PT~
SSM32PT~SSM34PT
36P SM T
1.0
SSM35PT~SSM36PT
100
PT
125
o
150
175
0.1
TJ =25oC Pulse Width=300us 1% Duty Cycle
.2
.3
.4
.5
.6
.7
.8
.9
INSTANTANEOUS FORWARD VOLTAGE,(V) FIG. 4 - MAXIMUM NON-REPETIVE FORWARD SURGE CURRENT 120
o C TJ = 125
100
8.3ms Single Half Sine-Wave (JEDEC Method)
80
o TJ = 75 C
60
o C TJ = 50
40
20
0 1 2 5 10 20 50 NUMBER OF CYCLES AT 60 Hz 100
FIG. 5 - TYPICAL JUNCTION CAPACITANCE 1000
TJ =25oC
100
10 .1 .4 1.0 4 10 40 80 REVERSE VOLTAGE, ( V )

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