> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# A1102 Hall Effect Sensor

**Type:** Product page · **SKU:** CE05296
**Page:** https://core-electronics.com.au/a1102-hall-effect-sensor.html ([markdown](https://core-electronics.com.au/a1102-hall-effect-sensor.html.md))

The A1101 Hall-effect switches include the following on a single silicon chip: voltage regulator, Hall-voltage generator, small-signal amplifier, Schmitt trigger, and NMOS output transistor. The integrated voltage regulator permits operation from 3.8 to 24 V.

## Pricing

- **Price:** $2.70 (inc GST) — $2.45 AUD, exc GST
- **Quantity discounts:** 10+ $2.35 (exc GST) · 25+ $2.28 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 04 and Sep 07.

## How to buy

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- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The A1102 is a continuous time hall effect switch in 3 pin SIP package. It is a next generation replacement for the popular Allegro 312x and 314x lines of unipolar switches. The A1102 uses BiCMOS technology which consists of devices that feature fast power-on time and low noise operation. Device programming is performed after packaging to ensure increased switchpoint accuracy by eliminating offsets that can be induced by package stress. Unique hall element geometries and low offset amplifiers help to minimize noise and to reduce residual offset voltage which is normally caused by device overmoulding, temperature excursions and thermal stress. The device includes voltage regulator, hall voltage generator, small signal amplifier, schmitt trigger and NMOS output transistor.

## Features

- SVHC:No SVHC (18-Jun-2012)
- Base Number: 1102
- Bop Max: 245G
- Hall Effect Type: Unipolar
- No. of Pins: 3
- Operating Temperature Max: 85°C
- Operating Temperature Min: -40°C
- Operating Temperature Range: -40°C to +85°C
- Output Current: 25mA
- Package / Case: SIP
- Sensor Case Style: SIP
- Supply Voltage Max: 24V
- Supply Voltage Min: 3.8V
- Supply Voltage Range: 3.8V to 24V
- Termination Type: Through Hole
 
[Datasheet](https://core-electronics.com.au/attachments/uploads/A110x-Datasheet.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/t/-/t-109-1.jpg)