Parameters |
Factory Lead Time |
1 Week |
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 |
2009 |
JESD-609 Code |
e3 |
Pbfree Code |
yes |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
3 |
Type |
Omnipolar Switch |
Terminal Finish |
Matte Tin (Sn) |
Technology |
Hall Effect |
Voltage - Supply |
2.4V~5.5V |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
Supply Voltage |
3V |
Terminal Pitch |
0.95mm |
Time@Peak Reflow Temperature-Max (s) |
40 |
Function |
Omnipolar Switch |
Current - Supply (Max) |
2mA |
Output Type |
Open Drain |
Max Output Current |
1mA |
Operating Supply Voltage |
3V |
Supply Voltage-Max (Vsup) |
5.5V |
Supply Voltage-Min (Vsup) |
2.4V |
Operating Supply Current |
2mA |
Polarization |
North Pole, South Pole |
Output Current |
1mA |
Test Condition |
-40°C ~ 150°C |
Sensing Range |
±7mT Trip, ±1mT Release |
Length |
2.98mm |
Width |
1.91mm |
Radiation Hardening |
No |
RoHS Status |
ROHS3 Compliant |
A3214LLHLT-T Overview
A protective Tape & Reel (TR) is applied to the magnetic switch in order to prevent damage. In order to ensure safety, magnetic switches are packaged in SOT-23W packages. The magnetic switches can supply 2mA as the maximum current for good performance. In its maximum state, these switches can output 1mA. 3 pins are used to operate the switches. As far as terminations are concerned, there are 3. Generally, switches should output 1mA current. The maximum voltage supplied by this switch should be 5.5V when it works. In normal conditions, this switch will deliver 3V voltage. The minimum voltage that can be supplied by this magnetic switch is 2.4V. During operation, the magnetic switches may supply a voltage of 3V.
A3214LLHLT-T Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Supply Voltage: 2.4V~5.5V
Operating Temperature: -40°C~150°C TA
Mounting Type: Surface Mount
3 Pins
3 Terminations
Output Type: Open Drain
Maximum Supply Current: 2mA
A3214LLHLT-T Applications
There are a lot of Allegro MicroSystems A3214LLHLT-T Magnetic Switches applications.
- Speed and direction of gears
- Generator set
- Gear reducer RPM
- Position and limit sensing
- Angle sensing
- Wiper home/end position sensor
- Conducting objects
- Fan speed measurement
- Identification of magnetic patterns in cards and banknotes
- Shafts in transmissions, hydraulic motors, pumps and gear boxes