SDC36B Datasheet, PDF (1/6 Pages) Semtech Corporation – TVS Diode Array for Proximity Switch Input Protection

PROTECTION PRODUCTS
Description
The SDC36B is a high-surge transient voltage suppres-
sor (TVS) optimized for protection of sensitive digital
sensors used in proximity switches and industrial
control applications. The SDC36B protects the compo-
nents from over-voltages caused by electrostatic
discharge (ESD), electrical fast transients (EFT), and
tertiary lightning.
The unique design of the SDC36B incorporates two
TVS diodes in a compact SOT23 package for applica-
tions where board space is at a premium. The single
package provides protection for the I/O line and power
supply rail with high surge capabilities (2 Amps at
t_p=1.2/50us) and an exceptionally low clamping volt-
age of <47V.
The SDC36B replaces up to two large discrete diodes
providing the designer an easy to implement integrated
solution. The features of the SDC36B are ideal for
protection of two, three, and four wire DC high-side
proximity switches.
SDC36B
TVS Diode Array for
Proximity Switch Input Protection
Features
‹ 350 watts peak pulse power (t_p = 8/20μs)
‹ 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) 2A (1.2/50μs)
‹ Replaces two discrete devices
‹ Low clamping voltage
‹ Low leakage current
‹ High surge capability
‹ Solid-state silicon avalanche technology
Mechanical Characteristics
‹ JEDEC SOT23 package
‹ RoHS/WEEE Compliant
‹ Molding compound flammability rating: UL 94V-0
‹ Marking : D36B
‹ Packaging : Tape and Reel per EIA 481
Applications
‹ Two, Three, and Four Wire DC High-Side Proximity
Switches
‹ Digital Sensor Input Protection
‹ Industrial Controls
‹ 24V - 33V DC Supply Protection
Circuit Diagram
Schematic & PIN Configuration
Revision 02/01/07
SOT23 (Top View)
1
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