Parameters |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
SOT-23W |
Number of Pins |
3 |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2009 |
JESD-609 Code |
e3 |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
3 |
Termination |
SMD/SMT |
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 |
Reach Compliance Code |
unknown |
Current Rating |
4mA |
Time@Peak Reflow Temperature-Max (s) |
40 |
Function |
Latch |
Current - Supply (Max) |
8mA |
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 ~ 85°C |
Sensing Range |
9mT Trip, -9mT Release |
Length |
2.98mm |
Width |
1.91mm |
REACH SVHC |
No SVHC |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
A3281ELHLT-T Overview
Magnetic switches are packaged in Tape & Reel (TR) to prevent damage. To ensure safety, the magnetic switches are packaged in SOT-23W packages. For good performance, the magnetic switches can supply 8mA. The maximum current these switches can supply when they work is 25mA. It is necessary to have a 3 pin for the switches to work. 3 terminations are contained in it. The switches should generally produce a current of 25mA. This switch should have a maximum voltage of 24V when it is operational. In most cases, this switch will supply 12V voltage to ensure relability. In this case, the minimum voltage supplied by the magnetic switch can be 4.2V.
A3281ELHLT-T 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 Pins
3 Terminations
Output Type: Open Collector
Maximum Supply Current: 8mA
A3281ELHLT-T Applications
There are a lot of Allegro MicroSystems A3281ELHLT-T Magnetic Switches applications.
- Motor assemblies
- Open/close sensor for LCD screens/doors/lids/trunks
- Convertible roof position
- Electric window lift
- Factory automation
- White goods
- Gear reducer RPM
- Encoders
- Position tracking
- Motor and fan control