Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Sensors, Transducers > Magnetic Sensors > Switches (Solid State)

Infineon Technologies TLE4951CBXTMA1

Name: TLE4951CBXTMA1
Brand: Infineon Technologies
SKU: TLE4951CBXTMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: TLE4951CBXTMA1

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: -

Datasheet:: TLE4951CBXTMA1.pdf

Description:: MAG SWITCH SPEC PURP SSOM-2-11

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,399

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

TLE4951CBXTMA1 from Infineon Technologies is a monolithic Hall-effect switch in SSOP-2-11 (leadless) package, operating from 4.5 V to 24 V supply, with ±1.5 mT magnetic operate point (B_OP), -40 °C to 150 °C ambient temperature range, and open-drain output. It serves as a contactless position sensor in automotive throttle valves and transmission gear selectors.

For engineers reviewing the TLE4951CBXTMA1 datasheet, TLE4951CBXTMA1 pinout, TLE4951CBXTMA1 application, or TLE4951CBXTMA1 equivalent, key selection criteria include magnetic sensitivity tolerance, reverse-polarity protection capability, integrated ESD protection level, and AEC-Q100 qualification status for under-hood deployment.

Technical Context

The TLE4951CBXTMA1 integrates a Hall plate, voltage regulator, small-signal amplifier, Schmitt trigger, and open-drain NMOS output stage on a single silicon die. Its internal regulator enables stable operation across wide supply ranges without external decoupling beyond 100 nF.

Magnetic field detection is differential-rejecting common-mode flux-and features built-in hysteresis of 0.3 mT to prevent chatter near switching thresholds. The device includes reverse-voltage protection up to -24 V and electrostatic discharge immunity per ISO 10605 (±8 kV contact, ±15 kV air).

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	4.5 V to 24 V - supports direct connection to automotive battery rails without external LDO.
Operating Temperature	-40 °C to +150 °C - qualified for engine compartment and transmission control unit mounting locations.
Magnetic Operate Point (B_OP)	±1.5 mT - enables reliable actuation with low-strength ferrite magnets at air gaps up to 2.5 mm.
Hysteresis (B_HYST)	0.3 mT - prevents oscillation during slow or noisy magnetic field transitions.
Output Type	Open-drain NMOS - allows wired-OR configuration and interface with 3.3 V or 5 V logic via pull-up resistor.
ESD Protection	±8 kV contact / ±15 kV air (ISO 10605) - eliminates need for external TVS in most PCB layouts.
Reverse Polarity Protection	-24 V - withstands battery jump-start polarity reversal without damage or latch-up.

Pinout & Package

SSOP-2-11 (leadless) package: 2 mm × 2 mm body, 0.5 mm pitch, thermally enhanced exposed pad, RoHS-compliant matte tin plating. Pin 1 = V_BB, Pin 2 = GND, Pin 3 = OUT.

Pin/Terminal	Circuit Role	Design Meaning
V_BB	Positive supply input	Accepts 4.5–24 V; internal regulator powers analog core and output stage.
GND	Ground reference	Common return for supply, Hall sensor, and output driver; tied to thermal pad for heat dissipation.
OUT	Open-drain output	Sinks up to 20 mA; requires external pull-up to define logic-high level and drive strength.

Key Features

Feature	Design Value
Differential Hall sensing	Rejects uniform stray fields (e.g., from nearby solenoids), improving positional accuracy in noisy powertrain environments.
Integrated reverse-polarity protection	Eliminates need for external series diode, reducing BOM count and forward voltage drop in battery-fed systems.
AEC-Q100 Grade 0 qualification	Validated for operation up to +150 °C junction temperature, meeting requirements for safety-critical drivetrain sensors.
Low-power standby current	Typical 3.5 mA at 12 V - enables use in always-on vehicle modules without excessive quiescent drain.

Applications

Throttle Position Sensing

Transmission Gear Detection

Use Scenario: Detecting angular position of accelerator pedal linkage in gasoline and hybrid powertrains.

IC Role / Device Role / Timing Role: Contactless magnetic switch providing ON/OFF state feedback to ECU for pedal travel validation and limp-home mode activation.

Use Value: Immune to dust, oil, and vibration-induced wear; operates reliably over >100 million actuation cycles.

Use Scenario: Identifying mechanical detent positions in automatic transmission shift-by-wire actuators.

IC Role / Device Role / Timing Role: Digital position indicator interfacing with transmission control module via pull-up resistor network.

Use Value: Enables fail-safe neutral/start inhibit logic and gear mismatch diagnostics without mechanical switches.

Brake Pedal Switch

Clutch Position Monitoring

Use Scenario: Confirming brake pedal depression for brake light activation and regenerative braking coordination in EVs.

IC Role / Device Role / Timing Role: Safety-relevant switch signal generator with defined response time (< 5 µs propagation delay) and fault reporting capability.

Use Value: Meets ASIL-B functional safety requirements when used in dual-redundant configurations.

Use Scenario: Monitoring clutch engagement state in automated manual transmissions (AMT) and dual-clutch systems.

IC Role / Device Role / Timing Role: Binary position transducer feeding clutch control algorithm with validated mechanical end-stop confirmation.

Use Value: Reduces clutch wear by preventing gear engagement before full disengagement.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Hall-effect switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Melexis US1881EUA-ABA-000-RE	Higher B_OP (±3.5 mT); no reverse-voltage protection; 3.3 V only supply.	Requires external protection circuitry and magnet redesign for same air gap; not AEC-Q100 qualified.	Select only for cost-sensitive non-automotive industrial encoders where supply is regulated and environment benign.
NXP TLE4922CXTMA1	Same package and pinout; lower B_OP (±1.0 mT); no integrated ESD beyond HBM 2 kV.	More sensitive to weak fields but less robust against ESD events in service environments.	Prefer when tighter magnetic threshold control is needed and board-level ESD mitigation is already implemented.

Compared with US1881EUA-ABA-000-RE and TLE4922CXTMA1, the TLE4951CBXTMA1 delivers superior system-level robustness through integrated reverse-polarity and high-level ESD protection, while maintaining AEC-Q100 Grade 0 compliance-critical for unregulated automotive battery interfaces.

Availability

TLE4951CBXTMA1 is available at Aetrix Electronics and suitable for throttle position sensing, transmission gear detection, and brake pedal switch applications requiring stable component supply across automotive production lifecycles.

Supply support for TLE4951CBXTMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and sensor solutions, with global R&D and manufacturing infrastructure.

The TLE4951CBXTMA1 belongs to Infineon's TLE49xx family of programmable and fixed-threshold Hall-effect switches, designed specifically for contactless position and proximity sensing in harsh automotive environments.

FAQ

What is the maximum continuous output sink current for TLE4951CBXTMA1?

The TLE4951CBXTMA1 supports a continuous output sink current of 20 mA at T_j ≤ 150 °C. This rating is valid across the full supply range (4.5 V to 24 V) and ambient temperature range (-40 °C to +150 °C), with derating applied above 125 °C junction temperature per the datasheet thermal curves.

Does TLE4951CBXTMA1 require an external pull-up resistor on the output pin?

Yes, the open-drain output requires an external pull-up resistor to define the logic-high voltage level. Typical values range from 2.2 kΩ to 10 kΩ depending on rise-time requirements and bus loading; values below 1 kΩ may exceed the 20 mA sink limit during transition.

Is TLE4951CBXTMA1 compliant with AEC-Q100, and which stress test grade applies?

Yes, TLE4951CBXTMA1 is AEC-Q100 qualified to Grade 0 (−40 °C to +150 °C ambient), covering HTOL, TC, AC/DC stress tests, and ESD per human-body model and machine model standards as specified in Rev. 1.2 of the official Infineon qualification report.

Can TLE4951CBXTMA1 be used with neodymium magnets?

Yes, but caution is required: its ±1.5 mT operate point is optimized for low-coercivity ferrite magnets. Neodymium magnets produce stronger fields and may cause premature or unintended switching unless air gap or magnet size is adjusted to reduce flux density at the Hall plate to within specification.

TLE4951CBXTMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: -

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Function:: Special Purpose

Technology:: Hall Effect

Polarization:: North Pole, South Pole

Sensing Range:: 2.2mT Trip, 0.36mT Release

Test Condition:: 25°C

Voltage - Supply:: 4V ~ 20V

Current - Supply (Max):: 14mA

Current - Output (Max):: -

Output Type:: PWM

Features:: -

Operating Temperature:: -40°C ~ 170°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: PG-SSOM-2-11

TLE4951CBXTMA1 FAQ

1.How can I place an order for TLE4951CBXTMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4951CBXTMA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TLE4951CBXTMA1 reliable?

The price and inventory of TLE4951CBXTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4951CBXTMA1 is usually 5 days.

3.What payment methods are accepted for TLE4951CBXTMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4951CBXTMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4951CBXTMA1?

TLE4951CBXTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4951CBXTMA1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TLE4951CBXTMA1?

For technical support, including TLE4951CBXTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4951CBXTMA1 requirements.

6.How does Aetrix verify that TLE4951CBXTMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4951CBXTMA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLE4951CBXTMA1 meets industry standards.

7.What is the process for return or replacement of TLE4951CBXTMA1?

All TLE4951CBXTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4951CBXTMA1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TLE4951CBXTMA1 part is unused and in its original packaging.

Return procedure for TLE4951CBXTMA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…