| Parameters |
| Factory Lead Time |
18 Weeks |
| 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 |
2012 |
| JESD-609 Code |
e3 |
| Pbfree Code |
yes |
| Part Status |
Active |
| Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
| Number of Terminations |
3 |
| Type |
Unipolar Switch |
| Terminal Finish |
Matte Tin (Sn) |
| Additional Feature |
REVERSE BATTERY PROTECTION |
| Subcategory |
Other Sensors/Transducers |
| Technology |
Hall Effect |
| Voltage - Supply |
3V~24V |
| Function |
Unipolar Switch |
| Body Length or Diameter |
2.98mm |
| Body Breadth |
1.91 mm |
| Output Type |
Current Source |
| Operating Supply Current |
5mA |
| Polarization |
South Pole |
| Max Supply Current |
17mA |
| Test Condition |
-40°C ~ 150°C |
| Sensing Range |
8mT Trip, 1mT Release |
| Magnetic Field Range-Min |
4.5 mT |
| Magnetic Field Range-Max |
11 mT |
| Body Height |
1mm |
| RoHS Status |
ROHS3 Compliant |
A1157LLHLX-T Overview
A protective Tape & Reel (TR) package is used to protect the magnetic switch against damage. In order to ensure safety, magnetic switches are packaged in SOT-23W packages. Currents up to 17mA can be supplied by these switches. In order for the switches to function, they have pins 3. There are 3 terminations in it.
A1157LLHLX-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: Current Source
A1157LLHLX-T Applications
There are a lot of Allegro MicroSystems A1157LLHLX-T Magnetic Switches applications.
- Tachometers/counters
- Motor and fan control
- Process speed
- Discrimination of ferromagnetic
- Spindles
- Open/close sensor for LCD screens/doors/lids/trunks
- Commutation of brushless DC motors
- Fan speed measurement
- Exercise equipment
- Flow metering