A3161: Hall-Effect Switch for Two-Wire Applications

These parts are discontinued.  Samples are no longer available. For new customers or new applications, please refer to Allegro A1150 Series.

This Hall-effect switch is a monolithic integrated circuit designed to operate continuously over extended temperatures to +85°C. The unipolar switching characteristic makes this device ideal for use with a simple bar or rod magnet. The A3161ELT and A3161EUA are identical except for package.

Each device includes a voltage regulator for operation with supply voltages of 3.5 to 25 volts, reverse battery protection diode, quadratic Hall-voltage generator, temperature compensation circuitry, small-signal amplifier, Schmitt trigger, and a constant-current open-collector output. Noise radiation is limited by control of the output current slew rate.


Astrorep Inc. (Allegro およびサンケン半導体、サンケン電源)
141 John Street, Suite 300
Babylon, NY 11702
電話: (631)422-2500
ファックス: (631)422-2504
Web: www.astrorepinc.com
電子メール: donna.tweedy@astrorepinc.com

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  • Features and BenefitsFeatures and Benefits
  • PackagingPackaging
  • Technical DocsTechnical Docs
  • NewsNews
  • Internal Current Regulator for 2-Wire Operation
  • Output Slew Rate Controlled
  • 3.5 V to 25 V Operation ... Needs Only An Unregulated Supply
  • Reverse Battery Protection
  • Excellent Temp. Stability
  • Activate with Small, Commercially Available Permanent Magnets
  • Small Size
  • Solid-State Reliability ... No Moving Parts
  • Resistant to Physical Stress
Pinout Diagram

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Functional Block Diagram Pinout Diagram

部品番号の仕様およびライフサイクル ステータス

Part Number Package Type Temperature RoHS
部品構成 /
RoHS データ
Comments Samples 代理店の
A3161ELT 3-lead SOT -40°C to 85°C Y データを見る 生産中止
A3161ELTTR 3-lead SOT -40°C to 85°C Y データを見る 生産中止
A3161EUA 3-lead SIP -40°C to 85°C Y データを見る 生産中止

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