Parameters |
Factory Lead Time |
1 Week |
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 |
2006 |
Series |
Automotive, AEC-Q100 |
JESD-609 Code |
e3 |
Feature |
High Temperature |
Pbfree Code |
yes |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
3 |
Type |
Unipolar Switch |
Terminal Finish |
Matte Tin (Sn) |
Technology |
Hall Effect |
Voltage - Supply |
3V~24V |
Function |
Unipolar Switch |
Body Length or Diameter |
2.98mm |
Body Breadth |
1.91 mm |
Output Type |
Open Drain |
Max Output Current |
25mA |
Polarity |
South Pole |
Operating Supply Current |
4mA |
Polarization |
South Pole |
Output Current |
25mA |
Max Supply Current |
4mA |
Sensing Method |
Hall Effect |
Test Condition |
-40°C ~ 150°C |
Housing |
PLASTIC |
Sensing Range |
13.5mT Trip, 4mT Release |
Hysteresis |
2.5 mT |
Magnetic Field Range-Min |
5 mT |
Body Height |
1mm |
Radiation Hardening |
No |
RoHS Status |
ROHS3 Compliant |
A1121LLHLT-T Overview
A protective Tape & Reel (TR) package surrounds the magnetic switch to protect it from damage. Magnet switches are packed in SOT-23W packages for safety reasons. If these switches work, they can output 25mA as the maximum current. These switches are capable of supplying a maximum current of 4mA. 3 pins are used to operate the switches. As far as terminations are concerned, there are 3. The switches should typically output 25mA of current.
A1121LLHLT-T Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Supply Voltage: 3V~24V
Operating Temperature: -40°C~150°C TA
Mounting Type: Surface Mount
3 Pins
3 Terminations
Output Type: Open Drain
A1121LLHLT-T Applications
There are a lot of Allegro MicroSystems A1121LLHLT-T Magnetic Switches applications.
- Monitor protections of the safety gates
- Antitheft systems
- Transmission
- End of travel and index sensors
- Motor and fan control
- Wiper home/end position sensor
- Industrial process control
- Speed and direction of gears
- Control of magnetic apparatus
- CNC machine tools