| Parameters |
| Mounting Type |
Surface Mount |
| Package / Case |
TO-243AA |
| Surface Mount |
YES |
| Operating Temperature |
-40°C~150°C TA |
| Packaging |
Tape & Reel (TR) |
| 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 |
A3251LLTTR Overview
A protective Tape & Reel (TR) package is used to protect the magnetic switch against damage. TO-243AA packages are used for safety reasons to protect magnetic switches. In order to be effective, magnetic switches can provide a maximum current of 7mA. If magnetic switches are to be output, the maximum current should be 20mA. It contains 3 terminations. If it works properly, this switch should produce a voltage of 24V. This switch should normally provide a voltage of 12V in order to ensure reliability. This magnetic switch can supply a voltage as low as 4.2V.
A3251LLTTR Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Supply Voltage: 4.2V~24V
Operating Temperature: -40°C~150°C TA
Mounting Type: Surface Mount
3 Terminations
Output Type: Open Collector
Maximum Supply Current: 7mA
A3251LLTTR Applications
There are a lot of Allegro MicroSystems A3251LLTTR Magnetic Switches applications.
- Gear shift selectors and driver controls (PRNDL)
- Industrial controls
- Speed and direction of gears
- Open/close sensor for LCD screens/doors/lids/trunks
- Localization of ferromagnetic
- Angle sensing
- Discrimination of ferromagnetic
- Pumps
- Wiper home/end position sensor
- Magnetic encoders