Parameters |
Mounting Type |
Surface Mount |
Package / Case |
TO-243AA |
Surface Mount |
YES |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2010 |
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 |
HTS Code |
8542.39.00.01 |
Technology |
Hall Effect |
Voltage - Supply |
4.2V~24V |
Terminal Position |
SINGLE |
Terminal Form |
FLAT |
Peak Reflow Temperature (Cel) |
240 |
Supply Voltage |
12V |
Terminal Pitch |
1.5mm |
Time@Peak Reflow Temperature-Max (s) |
30 |
JESD-30 Code |
R-PSSO-F3 |
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 ~ 85°C |
Sensing Range |
9mT Trip, -9mT Release |
Height Seated (Max) |
1.6mm |
Length |
4.5mm |
Width |
2.445mm |
RoHS Status |
Non-RoHS Compliant |
A3281ELTTR Overview
It is protected against damage by being packaged in a Tape & Reel (TR). As a safety precaution, the magnetic switches are packaged in TO-243AA packages. A good performance can be achieved with magnetic switches that can deliver 8mA as the maximum current. If magnetic switches are to be output, the maximum current should be 25mA. The file has 3 terminations. In order for this switch to function correctly, it should provide a maximum voltage of 24V. The switch normally supplies 12V to ensure reliable operation. In this magnetic switch, 4.2V is the minimum voltage that can be supplied.
A3281ELTTR Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Supply Voltage: 4.2V~24V
Operating Temperature: -40°C~85°C TA
Mounting Type: Surface Mount
3 Terminations
Output Type: Open Collector
Maximum Supply Current: 8mA
A3281ELTTR Applications
There are a lot of Allegro MicroSystems A3281ELTTR Magnetic Switches applications.
- Shafts in transmissions, hydraulic motors, pumps and gear boxes
- Position tracking
- Motor assemblies
- Encoders
- Clutch/brake position sensor
- Compressor speed
- Fan speed measurement
- Process speed
- Robotics control
- Monitor protections of the safety gates