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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
SCM32PT THRU SCM36PT
SMC
0.245(6.22) 0.220(5.59)
0.125(3.17) 0.115(2.92)
MECHANICAL DATA
Case: JEDEC SMC molded plastic Terminals: Solder plated, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Weight: 0.007 ounce 0.25 gram
(1)
0.280(7.11) 0.260(6.60)
(2)
0.012(0.305) 0.006(0.152) 0.103(2.62) 0.079(2.06) 0.060(1.52) 0.030(0.76) 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%.
0.320(8.13) 0.305(7.75)
Dimensions in inches and (millimeters)
SMC
SCM36PT 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 at TL (SEE FIG.1)(Note 3) 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 3) Operating Temperature Range Storage Temperature Range SYMBOL VRRM VRMS VDC IO IFSM CJ R
JL
SCM32PT 20 14 20
SCM33PT 30 21 30
SCM34PT 40 28 40 3.0 100 250 15
SCM35PT 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 (Note 1) Maximum Average Reverse Current (Note 1) at Rated DC Blocking Voltage @ TA = 25oC IR @ TA = 100 C
o
SYMBOL VF
SCM32PT
SCM33PT 0.55
SCM34PT
SCM35PT
SCM36PT
UNITS Volts mAmps
0.70 0.5
20
10
mAmps 2002-5
NOTES : 1. Pulse test : 300 us pulse width, 1% duty cycle 2. Measured at 1.0 MHZ and applied reverse voltage of 4.0 volts 3. P.C.B. mounted 0.31 x 0.31" ( 8 x 8mm) copper pad areas
RATING CHARACTERISTIC CURVES ( SCM32PT THRU SCM36PT )
INSTANTANEOUS FORWARD CURRENT, ( A ) FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE AVERAGE FORWARD CURRENT, (A) 3.0 2.5 2.0 1.5 1.0 0.5 0 50 60 70 80 90 100 110 120 130 140 150 160
o
FIG. 2 - INSTANTANEOUS FORWARD CURRENT, (A) 20 10
RESISTIVE OR INDUCTIVE LOAD
SCM
SCM 32PT
C T~S 35P
P.C.B. MOUNTED on 0.55 x 0.55" (14 x 14mm) COPPER PAD AREAS
SCM32PT~SCM34PT
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
o C TJ = 125
PEAK FORWARD SURGE CURRETN(A)
1000 JUNCTION CAPACITANCE, ( pF )
100
~SC
1.0
SCM35PT~SCM36PT
M36
10 5 .1 .4 1.0 4 10 40 80 REVERSE VOLTAGE, ( V )
M34
o TJ = 75 C
PT
PT
o C TJ = 25
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
100
8.3ms Single Half Sine-Wave (JEDEC Method)
80
60
40
20
0 1 2 5 10 20 50 NUMBER OF CYCLES AT 60 Hz 100
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
TJ =25oC

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