Parameters |
Mounting Type |
Surface Mount |
Package / Case |
TO-243AA |
Surface Mount |
YES |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Bulk |
Published |
2011 |
JESD-609 Code |
e0 |
Feature |
Programmable Trip Point |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
3 |
Terminal Finish |
TIN LEAD |
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 |
Unipolar Switch |
Current - Supply (Max) |
7mA |
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) |
20mA |
Sensing Range |
Programmable |
Height Seated (Max) |
1.6mm |
Length |
4.5mm |
Width |
2.445mm |
RoHS Status |
Non-RoHS Compliant |
A3251ELT Overview
A protective Bulk is applied to the magnetic switch in order to prevent damage. As a safety precaution, the magnetic switches are packaged in TO-243AA packages. In order to achieve good performance, the magnetic switches should be able to supply 7mA as the maximum current. For magnetic switches, the maximum current should be 20mA. It contains 3 terminations. If this switch is functioning properly, it should supply a voltage of 24V. When this switch is in a reliable operating state, it typically supplies 12V voltage. There is 4.2V minimum voltage that this magnetic switch can provide.
A3251ELT Features
Packaging: Bulk
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: 7mA
A3251ELT Applications
There are a lot of Allegro MicroSystems A3251ELT Magnetic Switches applications.
- White goods
- Reading of magnetic data storage media
- Commutation of brushless DC motors
- Lighting actuation slave sensor
- Tachometers/counters
- Robotics control
- Brushless DC (direct current) motor commutation
- Speedometers
- Flow metering
- Angle sensing