| Parameters |
| Mounting Type |
Through Hole |
| Package / Case |
4-SSIP |
| Surface Mount |
NO |
| Operating Temperature |
-40°C~150°C TA |
| Packaging |
Bulk |
| Published |
2012 |
| Series |
Automotive, AEC-Q100 |
| JESD-609 Code |
e0 |
| Feature |
Temperature Compensated |
| Part Status |
Obsolete |
| Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
| Number of Terminations |
4 |
| Terminal Finish |
TIN LEAD |
| HTS Code |
8542.39.00.01 |
| Technology |
Hall Effect |
| Voltage - Supply |
4V~26.5V |
| Terminal Position |
SINGLE |
| Peak Reflow Temperature (Cel) |
240 |
| Supply Voltage |
12V |
| Terminal Pitch |
1.27mm |
| Time@Peak Reflow Temperature-Max (s) |
NOT SPECIFIED |
| JESD-30 Code |
R-PSIP-T4 |
| Function |
Special Purpose |
| Current - Supply (Max) |
7mA |
| Qualification Status |
Not Qualified |
| Output Type |
Open Drain |
| Max Output Current |
25mA |
| Supply Voltage-Max (Vsup) |
26.5V |
| Supply Voltage-Min (Vsup) |
4V |
| Analog IC - Other Type |
MOTION SENSOR |
| Operating Supply Current |
7mA |
| Polarization |
South Pole |
| Test Condition |
-40°C ~ 150°C |
| Sensing Range |
2.75mT Trip, -1.25mT Release |
| Height Seated (Max) |
5.67mm |
| Length |
5.22mm |
| Width |
1.55mm |
| RoHS Status |
Non-RoHS Compliant |
| Lead Free |
Contains Lead |
A1421LK Overview
A magnetic switch is packaged in the Bulk to prevent damage. In order to protect the switches from damage, they are packaged in 4-SSIP packages. Good performance is achieved by magnetic switches that can supply 7mA as maximum current. The maximum current that can be output by these switches is 25mA. There are 4 terminations in it. In order for the switch to function, it should supply a voltage of 26.5V. For reliable performance, this switch usually provides 12V voltage. It is possible for this magnetic switch to supply 4V voltage as its minimum voltage.
A1421LK Features
Packaging: Bulk
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Supply Voltage: 4V~26.5V
Operating Temperature: -40°C~150°C TA
Mounting Type: Through Hole
4 Terminations
Output Type: Open Drain
Maximum Supply Current: 7mA
A1421LK Applications
There are a lot of Allegro MicroSystems A1421LK Magnetic Switches applications.
- Convertible roof position
- Spindles
- RPM measurement
- Synchronization
- Discrimination of ferromagnetic
- Lighting actuation slave sensor
- Position and limit sensing
- Mixers
- Monitor protections of the safety gates
- Counter pickup