

ALLEGRO A3251LLTTR
Manufacturer No:
A3251LLTTR
Manufacturer:
Package:
TO-243AA
Description:
Open Collector 4.2V~24V -40°C~150°C TA Unipolar Switch South Pole Programmable 7mA-Supply (Max) 20mA-Output (Max) TIN LEAD Programmable Trip Point TO-243AA
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A3251LLTTR information
ALLEGRO A3251LLTTR technical specifications, attributes, parameters and parts with similar specifications to ALLEGRO A3251LLTTR.
- Type
- Parameter
- 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
- 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
- Length
- 4.5mm
- Height Seated (Max)
- 1.6mm
- Width
- 2.445mm
- RoHS Status
- RoHS Compliant
Download datasheets and manufacturer documentation for ALLEGRO A3251LLTTR.
A3251LLTTR Overview
Magnetic switches are packaged in Tape & Reel (TR) to prevent damage. For safety reasons, magnetic switches are packaged in TO-243AA packages. For good performance, magnetic switches can supply 7mA as their maximum current. For magnetic switches, the maximum current should be 20mA. It has 3 terminations. When this switch is working, it should supply a voltage of 24V . For reliable operation, this switch supplies 12V voltage. Magnetic switches can supply voltages 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.
- Tachometer
- Counter pickup
- Flow-rate sensing
- Brushless DC (direct current) motor commutation
- Motor and fan control
- Robotics control
- Electric window lift
- Convertible roof position
- Motor assemblies
- Medication dispensing control
User Guide
Please verify all part numbers, quantities, and packaging preferences before placing your order. If substitutions are acceptable, please indicate this clearly. For time-sensitive projects, confirm estimated delivery dates and stock availability in advance. Once submitted, changes or cancellations may not be possible, especially for items marked as non-cancellable/non-returnable (NCNR). For international shipments, please ensure all import documentation is complete and accurate to avoid delays.
MEANS OF PAYMENTFor your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and Wire Transfer. Net terms may be available for qualified customers upon approval.
RFQ (REQUEST FOR QUOTATIONS)Please ensure the part numbers and quantities are accurate and complete when submitting your RFQ.
Provide target prices and acceptable alternatives, if any, to speed up the quotation process.
Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

Step1:Prepare product

Step2:Desiccant Protection

Step3:Vacuum Packaging

Step4:Individual Package

Step5:Anti-collision Filling

Step6:Packaging Box
1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.
Currently, our products are shipped through DHL, FedEx, SF, and UPS.
DELIVERY TIME1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.
A3251LLTTR Relevant information
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