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SK32B - SK315B
3.0 AMPS. Surface Mount Schottky Barrier Rectifiers SMB/DO-214AA
.083(2.10) .077(1.95) .147(3.73) .137(3.48)
Features
For surface mounted application Metal to silicon rectifier, majority carrier conduction Low forward voltage drop Easy pick and place High surge current capability Plastic material used carriers Underwriters Laboratory Classification 94V-0 Epitaxial construction High temperature soldering: 260oC / 10 seconds at terminals
.187(4.75) .167(4.25) .012(.31) .006(.15)
.103(2.61) .078(1.99) .012(.31) .006(.15) .056(1.41) .035(0.90) .209(5.30) .201(5.10) .008(.20) .004(.10)
Mechanical Data
Case: Molded plastic Terminals: Pure tin plated, lead free. Polarity: Indicated by cathode band Packaging: 16mm tape per EIA STD RS-481 Weight: 0.1 gram
Dimensions in inches and (millimeters)
Rating at 25oC ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Symbol SK SK SK SK Type Number
32B 33B 34B Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current at TL(See Fig. 1) Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage @ 3.0A
Maximum DC Reverse Current (Note 1) o @ TA =25 C at Rated DC Blocking Voltage o @ TA=125 C
Maximum Ratings and Electrical Characteristics
SK 36B SK SK SK 39B 310B 315B
35B
Units
V V V A A
VRRM VRMS VDC I(AV) IFSM VF IR
RJL RJA TJ
20 14 20
30 21 30
40 28 40
50 35 50 3.0 70
60 42 60
90 63 90
100 150 70 105 100 150
0.5 0.5 10
0.75
0.85 0.1
0.95
V mA mA
o
Typical Thermal Resistance ( Note 2 ) Operating Temperature Range
5 17 75
2.0
C/W
o o
-55 to +125
Storage Temperature Range TSTG Notes: 1. Pulse Test with PW=300 usec, 1% Duty Cycle
-55 to +150 -55 to +150
C C
2. Measured on P.C.Board with 0.4" x 0.4" (10mm x 10mm) Copper Pad Areas.
Version: A06
RATINGS AND CHARACTERISTIC CURVES (SK32B THRU SK315B)
FIG. 1- MAXIMUM FORWARD CURRENT DERATING CURVE
3.0 150
FIG. 2- MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT.(A)
AVERAGE FORWARD CURRENT.(A)
RESISTIVE OR INDUCTIVELOAD
SK
SK
2.0
120
AT RATED TL 8.3ms Single Half Sine Wave JEDEC Method
B-S 35
B-S 32 4B K3
90
B 15 K3
1.0
60
30
PCB MOUNTED ON 0.4X0.4" (10X10mm)COPPER PAD AREAS
0 50 60 70 80 90 100 110 120
O
130
140
150
160
0
1
LEAD TEMP ERATURE.( C)
10 NUMBER OF CYCLES AT 60Hz
100
FIG. 3- TYPICAL FORWARD CHARACTERISTICS
40
FIG. 4- TYPICAL REVERSE CHARACTERISTICS
20 10
Tj=125 C
10
O
TJ=125 C
INSTANTANEOUS REVERSE CURRENT.(mA)
O
INSTANTANEOUS FORWARD CURRENT.(A)
1
Tj=125 C
1
O
PULSE WIDTH=300 S 1% DUTY CYCLE
TJ=75 C
0.1
O
Tj=25 C
0.1
O
0.01
TJ=25 C
SK32B-SK34B SK35B-SK36B SK39B-SK315B
0.01 0 0.2 0.4 0.6 0.8 0.001 1.0 1.2 1.4 1.5 0 FORWARD VOLTAGE.(V) 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE.(%)
O
SK32B-SK34B SK35B-SK315B
1000
TRANSCIENT THERMAL IMPEDANCE, (OC/W)
100
FIG. 5- TYPICAL JUNCTION CAPACITANCE
Tj=25 C f=1.0MHz Vsig=50mVp-p
JUNCTION CAPACITANCE.(pF)
O
100
FIG.6- TYPICAL TRANSIENT THERMAL CHARACTERISTICS
SK SK
100
32
B-S
35
K3
10
B-S
4B
K3
SK
6B
39
B-S
K3
15
B
1
10 0.1
1 REVERSE VOLTAGE.(V)
10
0.1
0.01 0.1 1 t, PULSE DURATION, (sec) 10 100
Version: A06

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