SK320BTR [ETC]
DIODE SCHOTTKY 200V 3A SMB;
ETC 
SK320B
Technical Data
Data Sheet N1457, Rev. A
SK320B SCHOTTKY RECTIFIER
Features
Small foot print, surface mountable
Very low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Terminals finish: 100% Pure Tin
Green products in compliance the ROHS directive
This is a Pb - Free device
SMB
All SMC parts are traceable to the wafer lot
Additional testing can be offered upon request
Circuit Diagram
Applications
Switching power supply
Converters
Free-Wheeling diodes
Reverse battery protection
Maximum Ratings:
Characteristics
Symbol
VRRM
VRWM
VR
Condition
Max.
Units
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
-
200
V
50% duty cycle @TC=100°C, rectangular
wave form
Average Rectified Forward Current
IF (AV)
IFSM
3
A
A
Peak One Cycle Non-Repetitive
Surge Current
80
8.3ms, Half Sine pulse, Tc = 25 C
Electrical Characteristics:
Characteristics
Symbol
Condition
Typ.
0.82
Max.
Units
V
Forward Voltage Drop*
VF1
@ 3A, Pulse, TJ = 25 C
0.90
0.75
1.0
VF2
IR1
@ 3A, Pulse, TJ = 125 C
@VR = rated VR, TJ = 25 C
@VR = rated VR, TJ = 125 C
@VR = 5V, TC = 25 C, fSIG = 1MHz
-
0.70
V
Reverse Current*
0.0004
0.03
mA
mA
IR2
6.0
Junction Capacitance
CT
50
-
100
pF
Voltage Rate of Change
dv/dt
10,000
V/s
* Pulse width < 300 µs, duty cycle < 2%
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SK320B
Technical Data
Data Sheet N1457, Rev. A
Thermal-Mechanical Specifications:
Characteristics
Junction Temperature
Symbol
Condition
Specification
Units
-
-
-55 to +150
-55 to +150
TJ
C
C
Storage Temperature
Tstg
Typical Thermal Resistance Junction to
Case
Approximate Weight
DC operation
8
℃/W
RJC
wt
-
0.09
g
Ratings and Characteristics Curves
TJ=25℃
TJ=25℃
TJ=125℃
Fig.1-Typical Junction Capacitance
Fig.2-Typical Reverse Characteristics
TJ=125℃
TJ=25℃
Fig.3-Typical Instantaneous Forward Voltage Characteristics
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SK320B
Technical Data
Data Sheet N1457, Rev. A
Mechanical Dimensions SMB
Millimeters
Inches
SYMBOL
Min.
Max.
3.94
4.70
2.20
Min.
0.130
0.160
0.071
Max.
0.155
0.185
0.087
A
B
C
3.30
4.06
1.80
D
0.152
0.305
0.006
0.012
E
F
4.80
2.10
5.59
2.60
0.189
0.083
0.002
0.220
0.102
0.008
G
0.051
0.203
H
0.76
1.52
0.030
0.060
Ordering Information
Marking Diagram
Where XXXXX is YYWWL
Device
Package
SMB
(Pb-Free)
Shipping
SK320B
YY
WW
L
= Part Name
= Year
= Week
SK320B
3000pcs / reel
= Lot Number
For information on tape and reel specifications, including part
orientation and tape sizes, please refer to our tape and reel
packaging specification.
Cautions：Molding resin
Epoxy resin UL:94V-0
Carrier Tape Specification SMB
Millimeters
SYMBOL
Min.
Max.
A
B
C
d
3.99
5.72
3.23
1.40
4.19
5.92
3.43
1.60
E
F
1.40
5.60
7.90
3.90
1.90
-
1.60
5.70
8.10
4.10
2.10
0.60
P
P0
P1
T
W
11.80
12.20
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SK320B
Technical Data
Data Sheet N1457, Rev. A
DISCLAIMER:
1- The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product
characteristics. Before ordering, purchasers are advised to contact the SMC Diode Solutions sales department for the latest version of
the datasheet(s).
2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment,
medical equipment , and safety equipment) , safety should be ensured by using semiconductor devices that feature assured safety or by
means of users’ fail-safe precautions or other arrangement .
3- In no event shall SMC Diode Solutions be liable for any damages that may result from an accident or any other cause during
operation of the user’s units according to the datasheet(s). SMC Diode Solution assumes no responsibility for any intellectual property
claims or any other problems that may result from applications of information, products or circuits described in the datasheets.
4- In no event shall SMC Diode Solutions be liable for any failure in a semiconductor device or any secondary damage resulting from use
at a value exceeding the absolute maximum rating.
5- No license is granted by the datasheet(s) under any patents or other rights of any third party or SMC Diode Solutions.
6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or part, without the expressed written permission of SMC
Diode Solutions.
7- The products (technologies) described in the datasheet(s) are not to be provided to any party whose purpose in their application will
hinder maintenance of international peace and safety nor are they to be applied to that purpose by their direct purchasers or any third
party. When exporting these products (technologies), the necessary procedures are to be taken in accordance with related laws and
regulations.
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