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SDC15
TVS Diode Array for ESD Protection
of 12V Data and Power Lines
PROTECTION PRODUCTS
Description
The SDC15 transient voltage suppressor (TVS) is
designed to protect components which are connected
to data and transmission lines from voltage surges
caused by electrostatic discharge (ESD), electrical fast
transients (EFT) , and lightning.
TVS diodes are characterized by their high surge
capability, low operating and clamping voltages, and
fast response time. This makes them ideal for use as
board level protection of sensitive semiconductor
components. The dual-junction common-cathode
design allows the user to protect one data or power
line operating at ±12 volts. The low profile SOT23
package allows flexibility in the design of “crowded”
circuit boards.
The SDC15 TVS will meet the surge requirements of
IEC 61000-4-2 (Formerly IEC 801-2), Level 4, “Human
Body Model” for air and contact discharge.
Circuit Diagram
Features
300 watts peak pulse power (t p = 8/20μs)
40 watts peak pulse power (t p = 10/1000μs)
Transient protection for data and power lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lightning) 12A (1.2/50μs)
Protects one bidirectional line
Low clamping voltage
Low leakage current
High surge capability
Solid-state silicon avalanche technology
Mechanical Characteristics
JEDEC SOT23 package
Molding compound flammability rating: UL 94V-0
Marking : DC15
Packaging : Tape and Reel per EIA 481
Applications
RS-232 Data Lines
Portable Electronics
Industrial Controls
Set-Top Box
Servers, Notebook, and Desktop PC
12V DC Supply Protection
Schematic & PIN Configuration
SOT23 (Top View)
Revision 12/15/04
1
www.semtech.com
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