Parameters |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
SOT-23W |
Number of Pins |
3 |
Operating Temperature |
-40°C~150°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2003 |
JESD-609 Code |
e3 |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
3 |
Terminal Finish |
Matte Tin (Sn) |
Additional Feature |
OPERATION FROM UNREGULATED SUPPLY; REVERSE BATTERY PROTECTION |
Technology |
Hall Effect |
Voltage - Supply |
4.2V~24V |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
Supply Voltage |
12V |
Terminal Pitch |
0.95mm |
Current Rating |
4mA |
Time@Peak Reflow Temperature-Max (s) |
40 |
Function |
Latch |
Current - Supply (Max) |
8mA |
Output Type |
Open Collector |
Max Output Current |
25mA |
Supply Voltage-Max (Vsup) |
24V |
Supply Voltage-Min (Vsup) |
4.2V |
Analog IC - Other Type |
ANALOG CIRCUIT |
Operating Supply Current |
8mA |
Polarization |
South Pole |
Output Current |
25mA |
Test Condition |
-40°C ~ 150°C |
Sensing Range |
9mT Trip, -9mT Release |
Length |
2.98mm |
Width |
1.91mm |
Radiation Hardening |
No |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
A3281LLHLT-T Overview
The magnetic switch is packaged in Tape & Reel (TR) to protect it from damage. Magnet switches are packed in SOT-23W packages for safety reasons. As a maximum current, magnetic switches can supply 8mA. When they work, these switches can output 25mA as their maximum current. Switches are operated by 3 pins. This document has 3 terminations. The switches should generally produce a current of 25mA. It should supply a maximum voltage of 24V when it is functioning. The switch is usually set to supply 12V voltage to ensure reliable operation. Magnetic switches are capable of providing voltages as low as 4.2V.
A3281LLHLT-T Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Supply Voltage: 4.2V~24V
Operating Temperature: -40°C~150°C TA
Mounting Type: Surface Mount
3 Pins
3 Terminations
Output Type: Open Collector
Maximum Supply Current: 8mA
A3281LLHLT-T Applications
There are a lot of Allegro MicroSystems A3281LLHLT-T Magnetic Switches applications.
- Spindles
- White goods
- Counter pickup
- Motor assemblies
- Rotary applications
- Lighting actuation slave sensor
- Steering position
- Industrial controls
- Magnetic encoders
- Wiper home/end position sensor