SS543AT

Product Introduction

The Honeywell SS543AT is a digital Hall-effect sensor with a quad Hall element and built-in temperature compensation, designed for reliable non-contact position, speed and proximity sensing in harsh environments. It operates from 3.8 to 30 V, delivers a clean digital output and is rated for -40~+150°C in a SOT-89-3 package.

Application Pain Points & Solutions

• Pain: Drift and false triggering at high or low temperature
  Solution: Quad Hall + temperature compensation maintain stable switching from -40 to +150°C.
• Pain: Mechanical contact wear and short life
  Solution: Solid-state, non-contact sensing with long cycle life.
• Pain: Power-supply mismatch, complex wiring, small PCB
  Solution: 3.8–30 V wide supply, SOT-89 package and digital output simplify design.

Core Advantages

• 150°C high temperature: Rated for -40~+150°C; suitable for hot industrial equipment.
• Quad Hall + compensation: Stable operate/release points with low temperature drift.
• Wide supply: 3.8–30 V, compatible with 5 V, 12 V and 24 V systems.
• Small package: SOT-89-3 saves PCB space.
• Non-contact: No mechanical wear; long service life.
• Digital output: Direct logic interface, simple wiring.

Key Specifications

Applications

FAQ

Q: What is the maximum operating temperature?

A: +150°C, with a -40~+150°C operating range.

Q: What supply voltage does it support?

A: 3.8–30 V, compatible with 5 V, 12 V and 24 V systems.

Q: Is it non-contact?

A: Yes. Solid-state Hall sensing with no mechanical wear.

Q: Are samples available?

A: Yes. YQM provides Honeywell samples and FAE support.

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