Hall-Effect Sensor – US1881 (Latching)

(1 customer review)

£1.00 inc VAT

Availability: 75 in stock

Brand: SparkFun
Part Number: COM-09312
Barcode: 5055421000141
SKU: PPCOM-09312 Categories: , Tags: ,
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The US1881 is an integrated Hall effect latching sensor. Similar to a reed sensor, simply hold a magnet near the sensor to toggle. This makes for a robust presence sensor and is a smaller, lower-cost option to a reed sensor. A hall effect sensor can also handle less current than a reed switch.

The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt Trigger to provide switching hysteresis for noise rejection, and open-collector output. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range.

If a magnetic flux density larger than threshold Bop, DO is turned on (low). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off (high).

Hall Effect Sensor Features:

  • 3.5V to 24V DC operation voltage
  • Low current consumption
  • Temperature compensation
  • Wide operating voltage range
  • Open-Collector pre-driver
  • 50mA maximum sinking output current
  • Reverse polarity protection
  • Package: TO-92
  • RoHS Compliant

Hall Effect Sensor Functional Diagram:

Hall-Effect Sensor - US1881 (Latching) Functional Diagram


1 review for Hall-Effect Sensor – US1881 (Latching)

  1. Mike Milla

    Delivered promptly. Not tried them out yet so can’t assess performance.

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