The SML4729A-E3/5A is a surface-mount Zener diode manufactured by Vishay. It's designed to provide voltage regulation and transient voltage suppression in various electronic circuits. The device comes in a DO-214AC (SMA) package and is part of the SML47xx series, known for their high reliability and compact size.

Applications

• Voltage Regulation
• Transient Voltage Suppression
• Clipping Circuits
• Over-Voltage Protection
• DC-DC converters

Features

• 3.6V Zener Voltage
• 1W Power Dissipation
• SMA (DO-214AC) Package
• Low Leakage Current
• High Surge Current Capability
• Glass passivated junction
• RoHS Compliant

Benefits

• Provides stable voltage regulation
• Protects sensitive components from voltage spikes
• Compact size for space-constrained applications
• High reliability and long lifespan
• Easy to integrate into surface-mount designs

Additional Details

The SML4729A-E3/5A has a Zener voltage tolerance of ±5%. Its typical reverse leakage current is very low, contributing to energy efficiency in the circuit. The maximum surge current capability is specified in the datasheet, ensuring it can handle transient events. The operating temperature range is typically from -65°C to +150°C. Vishay's datasheets provide detailed information on the electrical characteristics, thermal performance, and recommended soldering profiles. The SMA package is widely used and provides good thermal dissipation. The device's robust construction and compliance with RoHS standards make it suitable for a wide range of applications where reliable voltage regulation and transient protection are needed. Proper heatsinking can further improve the diode's performance under high power dissipation conditions. The part number includes the suffix '-E3/5A' which indicates lead (Pb)-free and RoHS compliance.