Parameters |
Number of Terminations |
3 |
Terminal Finish |
Tin/Lead (Sn/Pb) |
Additional Feature |
OPERATION FROM UNREGULATED SUPPLY; REVERSE BATTERY PROTECTION |
HTS Code |
8542.39.00.01 |
Technology |
Hall Effect |
Voltage - Supply |
4.2V~24V |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
240 |
Supply Voltage |
12V |
Terminal Pitch |
0.95mm |
Time@Peak Reflow Temperature-Max (s) |
30 |
JESD-30 Code |
R-PDSO-G3 |
Function |
Latch |
Current - Supply (Max) |
8mA |
Qualification Status |
Not Qualified |
Output Type |
Open Collector |
Supply Voltage-Max (Vsup) |
24V |
Supply Voltage-Min (Vsup) |
4.2V |
Analog IC - Other Type |
ANALOG CIRCUIT |
Polarization |
South Pole |
Current - Output (Max) |
25mA |
Test Condition |
-40°C ~ 150°C |
Sensing Range |
9mT Trip, -9mT Release |
Height Seated (Max) |
1.13mm |
Length |
3mm |
Width |
1.975mm |
RoHS Status |
Non-RoHS Compliant |
Mounting Type |
Surface Mount |
Package / Case |
SOT-23W |
Surface Mount |
YES |
Operating Temperature |
-40°C~150°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2000 |
JESD-609 Code |
e0 |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
A3281LLHLT Overview
The magnetic switch is packaged in the Tape & Reel (TR) in order to prevent damage. For safety reasons, magnetic switches are packaged in SOT-23W packages. For good performance, magnetic switches can supply 8mA as their maximum current. To be output, magnetic switches must have a maximum current of 25mA. 3 terminations are contained in it. It should supply a maximum voltage of 24V when it is functioning. When this switch is in a reliable operating state, it typically supplies 12V voltage. This magnetic switch can provide 4.2V voltage as the minimum voltage.
A3281LLHLT 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 Terminations
Output Type: Open Collector
Maximum Supply Current: 8mA
A3281LLHLT Applications
There are a lot of Allegro MicroSystems A3281LLHLT Magnetic Switches applications.
- Navigation
- Synchronization
- Monitor protections of the safety gates
- Motor and fan control
- Position and limit sensing
- CNC machine tools
- Speedometers
- Steering position
- Tachometers/counters
- Fan speed measurement