Parameters |
Qualification Status |
Not Qualified |
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 |
Height Seated (Max) |
5.26mm |
Length |
4.105mm |
Width |
1.52mm |
RoHS Status |
Non-RoHS Compliant |
Lead Free |
Contains Lead |
Mount |
Through Hole |
Mounting Type |
Through Hole |
Package / Case |
3-SSIP |
Number of Pins |
3 |
Operating Temperature |
-40°C~150°C TA |
Packaging |
Bulk |
Published |
2003 |
JESD-609 Code |
e0 |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
3 |
Terminal Finish |
Tin/Lead (Sn/Pb) |
Additional Feature |
OPERATION FROM UNREGULATED SUPPLY; REVERSE BATTERY PROTECTION |
Technology |
Hall Effect |
Voltage - Supply |
4.2V~24V |
Terminal Position |
SINGLE |
Peak Reflow Temperature (Cel) |
240 |
Supply Voltage |
12V |
Terminal Pitch |
1.27mm |
Current Rating |
4mA |
Time@Peak Reflow Temperature-Max (s) |
NOT SPECIFIED |
Function |
Latch |
Current - Supply (Max) |
8mA |
A3281LUA Overview
Bulk package done to protect the magnetic switch from damage. Safety precautions are taken by packaging the magnetic switches in 3-SSIP packages. A magnetic switch can supply a maximum current of 8mA if it is well designed. In operation, these switches can output a maximum current of 25mA. Switches require 3 pins to work. It contains 3 terminations. As a general rule, the switches should output 25mA. It should supply a maximum voltage of 24V when it is functioning. This switch will normally supply 12V voltage for reliable operation. In this magnetic switch, 4.2V is the minimum voltage that can be supplied.
A3281LUA Features
Packaging: Bulk
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Supply Voltage: 4.2V~24V
Operating Temperature: -40°C~150°C TA
Mounting Type: Through Hole
3 Pins
3 Terminations
Output Type: Open Collector
Maximum Supply Current: 8mA
A3281LUA Applications
There are a lot of Allegro MicroSystems A3281LUA Magnetic Switches applications.
- Brushless DC (direct current) motor commutation
- Open/close sensor for LCD screens/doors/lids/trunks
- Navigation
- Antitheft systems
- Position and limit sensing
- Convertible roof position
- RPM measurement
- Clutch/brake position sensor
- Detection of ferromagnetic
- Speed and direction of gears