1SMA28AT3G - Littelfuse Inc.

Manufacturer Part Number

1SMA28AT3G

Manufacturer

littelfuse

Introduction

The 1SMA28AT3G is a Zener-type TVS diode designed for transient voltage suppression and protection of electronic components from voltage spikes.

Product Features and Performance

Unidirectional TVS diode

Surface Mount technology in DO-214AC, SMA package

Supports a reverse standoff voltage of 28V

Exhibits a minimum breakdown voltage of 31.1V

Clamps voltage to a maximum of 45.4V at peak pulse current of 8.8A

Provides peak pulse power of 400W for transient protection

Features capacitance value of 430pF at 1MHz frequency

Operates over a wide temperature range from -65°C to 150°C (TJ)

Product Advantages

Optimal protection against voltage transients and surges

Robust design enables reliable performance in harsh temperature conditions

Unidirectional feature simplifies circuit design

Low capacitance makes it suited for high-speed signal applications without significant signal attenuation

Simple surface mount installation processes

Key Technical Parameters

Voltage Reverse Standoff (Typ): 28V

Voltage Breakdown (Min): 31.1V

Voltage Clamping (Max) @ Ipp: 45.4V

Current Peak Pulse (10/1000µs): 8.8A

Power Peak Pulse: 400W

Capacitance @ Frequency: 430pF @ 1MHz

Operating Temperature: -65°C ~ 150°C (TJ)

Quality and Safety Features

Designed and tested to ensure high reliability and safety under transient conditions

Compatibility

Compatible with surface mount technologies making it suitable for a broad range of PCB designs

Application Areas

General Purpose applications including consumer electronics, industrial systems, and communication devices protection

Product Lifecycle

Currently marked as Obsolete, indicating discontinued production with limited availability

Potential need for seeking replacements or upgrades for future designs

Several Key Reasons to Choose This Product

Reliable performance from littelfuse, a leading manufacturer in circuit protection

Comprehensive protection range suitable for a variety of applications

Extended operating temperature range caters to demanding environments

Low capacitance value supports high-speed applications without compromising signal integrity

Obsolescence status necessitates consideration for last-time buys or alternative sourcing strategies