The Si7201 is a Hall effect magnetic switch from Silicon Labs, designed for position sensing in consumer, security, and mechanical control applications. It is available in a 3-pin TO-92 package and operates with a supply voltage of 1.71 to 5.5 V or 3.3 to 26.5 V depending on variant. The device features a maximum operating magnetic field strength of <1.1 mT, selectable unipolar or omnipolar operation, and a typical current consumption of 400 nA at 5 samples per second. It includes digital signal processing for temperature and offset drift compensation, with sensitivity drift under ±3% over temperature. The output is open-drain, and the device supports programmable sensitivity, hysteresis, output polarity, and sample rate. The TO-92 package variant provides tamper indication by returning to zero-field level at high magnetic field. The part is rated for operation from -40°C to +125°C.
Win Source Part Number: 1235120-SI7201-B-89-
Category: Sensors, Transducers>Magnetic
Features: Programmable
Package: Tape & Reel (TR)
Standard Package: 3,000
Technology: Hall Effect
Output Type: Switch
Function: Omnipolar, Unipolar Switch
Test Condition: 0°C ~ 70°C (-40°C ~ 125°C)
Polarization: Unidirectional
Current - Supply (Max): 8.5mA
Sensing Range: ±3.7mT Trip, ±1.4mT Release
Voltage - Supply: 1.71V ~ 5.5V
Mounting Type: Through Hole
Package / Case: TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package: TO-92-3
Temperature Range - Operating: -40°C ~ 125°C (TA)
Fake Threat In the Open Market: 46 pct.
MSL Level: 2 (1 Year)
HTSUS: 0000.00.0000
Mfr: Silicon Labs
Base Product Number: SI7201
| Win Source Electronics | |
|---|---|
| Product Category | Solid State Relays |
| Product Number | 1235120-SI7201-B-89-IBR |
| Product Name | Sensors, Transducers - Magnetic Sensors - Switches (Solid State) |
| Mounting | PCBoard; Through Hole |
