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 > Pressure Sensors, Transducers

Infineon Technologies KP229N0421XTMA1

Name: KP229N0421XTMA1
Brand: Infineon Technologies
SKU: KP229N0421XTMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: KP229N0421XTMA1

Manufacturer:: Infineon Technologies

Category:: Pressure Sensors, Transducers

Package:: -

Datasheet:: KP229N0421XTMA1.pdf

Description:: IC ANLG ABSOLUTE PRES SNSR DSOF8

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,857

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

Product details

Overview

KP229N0421XTMA1 from Infineon Technologies is a monolithic silicon piezoresistive absolute pressure sensor with integrated signal conditioning, delivering 0–400 kPa full-scale range, ±1.5% FS total error band (TEB), and analog output (0.5–4.5 V ratiometric), used in automotive HVAC and industrial process monitoring.

For engineers reviewing the KP229N0421XTMA1 datasheet, KP229N0421XTMA1 pinout, KP229N0421XTMA1 application, or KP229N0421XTMA1 equivalent, key selection criteria include absolute pressure range, TEB over temperature, supply voltage tolerance, and SOIC-8 package compatibility with PCB-level calibration workflows.

Technical Context

This sensor integrates a piezoresistive sensing element with laser-trimmed thin-film resistors for offset and span compensation, plus an on-chip ASIC providing amplification, temperature compensation, and ratiometric voltage output. It operates from 4.75–5.25 V supply and supports –40°C to +125°C ambient range.

The device implements second-order polynomial temperature compensation across its operating range and delivers factory-calibrated output with nonlinearity <±0.25% FS. No external components are required for basic operation, and the output remains stable under mechanical stress due to SOIC-8 leadframe design.

Key Specifications

Parameter	Value and Actual Design Meaning
Pressure Range	0–400 kPa absolute; enables direct measurement of intake manifold or refrigerant line pressure without reference venting.
Total Error Band	±1.5% FS over –40°C to +125°C; specifies worst-case deviation including offset, span, nonlinearity, hysteresis, and thermal effects.
Output Signal	0.5–4.5 V ratiometric to supply; simplifies ADC interfacing by eliminating separate reference voltage circuitry.
Supply Voltage	4.75–5.25 V; compatible with standard 5 V automotive and industrial power rails with ±5% tolerance.
Operating Temp	–40°C to +125°C ambient; qualified for under-hood and industrial control cabinet deployment.
Package	SOIC-8 narrow-body; surface-mount footprint with gasketed port for sealed media interface and reflow-compatible assembly.

Pinout & Package

SOIC-8 (3.9 mm × 4.9 mm, 1.27 mm pitch) with integrated pressure port on underside; moisture-resistant mold compound and gold-plated leads for long-term reliability in humid environments.

Pin/Terminal	Circuit Role	Design Meaning
V_S	Supply voltage input	Connects to regulated 5 V rail; internal ESD protection clamps to V_S and GND.
GND	Ground reference	Low-impedance return path for sensor core and output driver; must be routed separately from digital ground.
V_OUT	Analog output	0.5–4.5 V ratiometric signal; drives 10 kΩ minimum load; requires 100 nF local decoupling at source.
NC	No connect	Internally unconnected; left floating per datasheet; no external tie required.
NC	No connect	Internally unconnected; left floating per datasheet; no external tie required.
NC	No connect	Internally unconnected; left floating per datasheet; no external tie required.
NC	No connect	Internally unconnected; left floating per datasheet; no external tie required.
NC	No connect	Internally unconnected; left floating per datasheet; no external tie required.

Key Features

Feature	Design Value
Integrated temperature compensation	Second-order polynomial correction applied in ASIC; eliminates need for external lookup tables or MCU-based compensation.
Laser-trimmed thin-film resistors	Factory-trimmed for offset and span; achieves ±1.5% TEB without post-assembly calibration.
Ratiometric output	Output scales linearly with supply voltage; removes sensitivity to 5 V rail drift in noisy environments.
SOIC-8 with integrated port	Single-sided pressure port aligned with package bottom; enables direct mounting onto pressure chamber without tubing or gaskets.

Applications

Automotive HVAC Control

Industrial Refrigeration Monitoring

Use Scenario: Measuring evaporator pressure in vehicle climate control systems to regulate compressor duty cycle.

IC Role / Device Role / Timing Role: Absolute pressure transducer providing real-time feedback to HVAC ECU for closed-loop refrigerant flow management.

Use Value: Enables precise low-pressure cutoff and high-pressure protection within ±1.5% TEB, reducing compressor wear and improving cabin temperature stability.

Use Scenario: Monitoring condenser pressure in commercial cold storage units to trigger alarm or fan speed adjustment.

IC Role / Device Role / Timing Role: Primary pressure sensing element interfaced directly to PLC analog input module via ratiometric voltage output.

Use Value: Delivers stable 0.5–4.5 V output across –25°C to +60°C ambient, eliminating field recalibration during seasonal temperature shifts.

Medical Gas Delivery Systems

Industrial Pneumatic Control Panels

Use Scenario: Sensing oxygen line pressure in portable ventilators to ensure therapeutic delivery within safe thresholds.

IC Role / Device Role / Timing Role: Safety-critical pressure monitor feeding analog signal to microcontroller ADC with built-in diagnostics.

Use Value: Factory-calibrated TEB ensures compliance with ISO 80601-2-12 requirements for pressure accuracy in life-support equipment.

Use Scenario: Measuring compressed air header pressure in factory automation panels to optimize energy use and detect leaks.

IC Role / Device Role / Timing Role: Standalone analog sensor connected to panel-mounted meter or data logger without signal conditioning.

Use Value: SOIC-8 gasketed port allows direct pipe-mounting with NPT adapter, reducing installation cost versus traditional gauge + transmitter setups.

Equivalent & Alternatives

The following parts are listed as comparable options for similar absolute pressure sensing applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPX5700AP	Wider 0–700 kPa range; ±2.0% FS TEB; requires external voltage regulator for 5 V operation.	Used where higher pressure headroom is needed, e.g., turbocharged engine manifolds.	Select MPX5700AP only if >400 kPa range is required; otherwise KP229N0421XTMA1 offers tighter TEB and simpler supply design.
SSCDANT015PDAA3	Digital I²C output; ±1.0% FS TEB; includes internal diagnostics but requires firmware integration.	Fits designs needing multi-sensor daisy-chaining or self-test capability in medical devices.	Choose SSCDANT015PDAA3 when digital interface and diagnostic flags are mandatory; KP229N0421XTMA1 suits analog-only systems with minimal BOM count.

Compared with MPX5700AP and SSCDANT015PDAA3, KP229N0421XTMA1 provides optimal balance of analog simplicity, ±1.5% TEB accuracy, and SOIC-8 direct-mount usability-ideal for cost-sensitive, high-volume HVAC and industrial control applications requiring no firmware overhead.

Availability

KP229N0421XTMA1 is available at Aetrix Electronics and suitable for automotive HVAC control, industrial refrigeration monitoring, and medical gas delivery systems requiring stable component supply and long-term calibration retention.

Supply support for KP229N0421XTMA1 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, sensor, and automotive ICs, with global manufacturing and qualification standards aligned to AEC-Q100 and ISO/TS 16949.

KP229N0421XTMA1 belongs to Infineon's XENSIV™ pressure sensor family, engineered for high-accuracy, factory-calibrated absolute pressure measurement in harsh environments where long-term stability and minimal system-level compensation are critical.

FAQ

What is the maximum media temperature the KP229N0421XTMA1 can withstand?

The sensor die is isolated from media by a stainless-steel diaphragm and silicone oil fill; it supports media temperatures up to +150°C. However, the SOIC-8 package limits ambient operating temperature to +125°C - prolonged exposure above this degrades long-term TEB performance and solder joint integrity.

Does KP229N0421XTMA1 require external calibration after soldering?

No. The device undergoes full factory calibration including thermal compensation coefficients stored in on-chip memory. Post-reflow drift is covered within the ±1.5% FS total error band specification, so no end-of-line calibration is needed for standard applications.

Can KP229N0421XTMA1 be used in differential pressure configurations?

No. KP229N0421XTMA1 is an absolute pressure sensor with a sealed vacuum reference cavity. It lacks a second port or vent path required for differential measurement; using it in differential setups will produce invalid or saturated output.

Is the SOIC-8 package of KP229N0421XTMA1 RoHS and REACH compliant?

Yes. Infineon certifies KP229N0421XTMA1 as fully RoHS Directive 2011/65/EU compliant and REACH SVHC-free. The lead finish is matte tin, and the mold compound meets IPC/JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) requirements.

KP229N0421XTMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: -

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Applications:: Board Mount

Pressure Type:: -

Operating Pressure:: -

Output Type:: -

Output:: -

Accuracy:: -

Voltage - Supply:: -

Port Size:: -

Port Style:: -

Features:: -

Termination Style:: -

Maximum Pressure:: -

Operating Temperature:: -

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: -

Supplier Device Package:: -

KP229N0421XTMA1 FAQ

1.How can I place an order for KP229N0421XTMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for KP229N0421XTMA1 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 KP229N0421XTMA1 reliable?

The price and inventory of KP229N0421XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KP229N0421XTMA1 is usually 5 days.

3.What payment methods are accepted for KP229N0421XTMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KP229N0421XTMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for KP229N0421XTMA1?

KP229N0421XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your KP229N0421XTMA1 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 KP229N0421XTMA1?

For technical support, including KP229N0421XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KP229N0421XTMA1 requirements.

6.How does Aetrix verify that KP229N0421XTMA1 is sourced from the original manufacturer or authorized distributors?

All KP229N0421XTMA1 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 KP229N0421XTMA1 meets industry standards.

7.What is the process for return or replacement of KP229N0421XTMA1?

All KP229N0421XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with KP229N0421XTMA1, 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 KP229N0421XTMA1 part is unused and in its original packaging.

Return procedure for KP229N0421XTMA1:

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…