| Parameters |
| Factory Lead Time |
8 Weeks |
| 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 |
2010 |
| Series |
Automotive, AEC-Q100 |
| Pbfree Code |
yes |
| Part Status |
Active |
| Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
| Additional Feature |
AEC-Q100; ISO 26262 COMPLIANT; SHORT-CIRCUIT PROTECTION |
| Technology |
Hall Effect |
| Voltage - Supply |
3V~24V |
| Function |
Latch |
| Body Length or Diameter |
2.98mm |
| Body Breadth |
1.91 mm |
| Output Type |
Open Drain |
| Max Output Current |
25mA |
| Termination Type |
SOLDER |
| Operating Supply Current |
4mA |
| Polarization |
South Pole |
| Output Current |
25mA |
| Max Supply Current |
4mA |
| Bandwidth |
800 kHz |
| Test Condition |
-40°C ~ 85°C |
| Sensing Range |
9mT Trip, -9mT Release |
| Hysteresis |
10 mT |
| Magnetic Field Range-Min |
-9 mT |
| Magnetic Field Range-Max |
9 mT |
| Body Height |
1mm |
| RoHS Status |
ROHS3 Compliant |
A1221ELHLT-T Overview
In order to prevent damage, the magnetic switch is packaged in the Tape & Reel (TR). Magnet switches are packed in SOT-23W packages for safety reasons. When these switches are working, their maximum current will be 25mA. There is a maximum current that can be supplied by these switches of 4mA. Switches require 3 pins to function. Generally, switches should output 25mA current.
A1221ELHLT-T Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Supply Voltage: 3V~24V
Operating Temperature: -40°C~85°C TA
Mounting Type: Surface Mount
3 Pins
Output Type: Open Drain
A1221ELHLT-T Applications
There are a lot of Allegro MicroSystems A1221ELHLT-T Magnetic Switches applications.
- Speed and direction of gears
- Speed and RPM (revolutions per minute) sensing
- Dyno testing
- Position tracking
- Conducting objects
- Identification of magnetic patterns in cards and banknotes
- Security and military applications
- Wiper home/end position sensor
- Transmission
- Magnetic encoders