> **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

# A3213 Hall Effect Sensor

**Type:** Product page · **SKU:** 014-A3213EUA-T
**Page:** https://core-electronics.com.au/a3213-hall-effect-sensor.html ([markdown](https://core-electronics.com.au/a3213-hall-effect-sensor.html.md))

Unlike other Hall-effect switches, either a north or south pole of sufficient strength will turn the output on; in the absence of a magnetic field, the output is off.

## Pricing

- **Price:** $1.70 (inc GST) — $1.55 AUD, exc GST
- **Quantity discounts:** 10+ $1.48 (exc GST) · 25+ $1.44 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 22 today; more stock is typically available with a 7–10 day lead time.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=014-A3213EUA-T:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/014-A3213EUA-T:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **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 A3213 and A3214 integrated circuits are ultra-sensitive, pole independent Hall-effect switches with a latched digital output. They are especially suited for operation in battery-operated, hand-held equipment such as cellular and cordless telephones, pagers, and palmtop computers. A 2.4 to 5.5 V operation and a unique clocking scheme reduce the average operating power requirements – the A3213 to 825 µW, the A3214 to 14 µW (typical, at 2.75 V). Except for operating duty cycle and average operating current, the A3213 and A3214 are identical.

Unlike other Hall-effect switches, either a north or south pole of sufficient strength will turn the output on; in the absence of a magnetic field, the output is off. The polarity independence and minimal power requirement allows these devices to easily replace reed switches for superior reliability and ease of manufacturing, while eliminating the requirement for signal conditioning.

**Features:**

- Micropower operation
- Operate with north or south pole
- 2.4 to 5.5 V battery operation
- Chopper stabilized
- Superior temperature stability
- Extremely low switch-point drift
- Insensitive to physical stress
- High ESD protection
- Solid-state reliability
- Small size
- Easily manufacturable with magnet pole independence
 
Downloads:

- [Datasheet](https://www.allegromicro.com/-/media/files/datasheets/a3213-4-datasheet.ashx)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/t/-/t-109-1_1.jpg)