The A3281 is an obsolete chopper-stabilized Hall-effect latch designed for applications requiring temperature stability up to +150°C, with an open-collector output capable of sinking up to 25 mA and operation from a 4.2 V to 24 V unregulated supply. It is available in a surface-mount SOT23W package, includes on-chip voltage regulation, reverse battery protection, and output short-circuit protection, and is lead-free with matte tin plating. The device responds to a south pole to turn on and a north pole to turn off. The A3281 is identical in architecture to the A3283 except for magnetic switch points, which are not specified for this variant. It is not recommended for new designs.
Win Source Part Number: 1121608-A3281ELHLT-T
Category: Sensors, Transducers>Magnetic
Package: Tape & Reel (TR)
Standard Package: 3,000
Mounting: SMD (SMT)
Technology: Hall Effect
Output Type: Open Collector
Function: Latch
Test Condition: -40°C ~ 85°C
Polarization: South Pole
Current - Supply (Max): 8mA
Current - Output (Max): 25mA
Sensing Range: 9mT Trip, -9mT Release
Voltage - Supply: 4.2V ~ 24V
Package / Case: SOT-23W
Supplier Device Package: SOT-23W
Temperature Range - Operating: -40°C ~ 85°C (TA)
Alternative Parts (Cross-Reference): A3281ELHLT-T.;
ECCN: EAR99
Fake Threat In the Open Market: 60 pct.
MSL Level: 1 (Unlimited)
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Mfr: Allegro MicroSystems
Product Status: Obsolete
| Win Source Electronics | |
|---|---|
| Product Category | Solid State Relays |
| Product Number | 1121608-A3281ELHLT-T |
| Product Name | Sensors, Transducers - Magnetic Sensors - Switches (Solid State) |
| Mounting | PCBoard; SMD (SMT) |
