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 KP234XTMA1

Name: KP234XTMA1
Brand: Infineon Technologies
SKU: KP234XTMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: KP234XTMA1

Manufacturer:: Infineon Technologies

Category:: Pressure Sensors, Transducers

Package:: 8-SMD Module

Datasheet:: KP234XTMA1.pdf

Description:: SENSOR 16.68PSIA 4.7V DSOF8-16

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,741

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

Product details

Overview

KP234 from Infineon Technologies is an analog absolute pressure sensor IC based on capacitive MEMS sensing with monolithic BiCMOS signal conditioning. It delivers ratiometric voltage output (1.33 V to 4.70 V) across 40–115 kPa pressure range, operates from −40 °C to +125 °C, and features broken-wire detection - deployed in automotive barometric air pressure measurement for engine control and altitude compensation.

For engineers reviewing the KP234 datasheet, KP234 pinout, KP234 application, or KP234 equivalent, this page provides verified technical context, calibrated transfer function details, package-validated pin roles, automotive-grade accuracy specs, and real-world use cases in altimeters and weather stations.

Technical Context

The KP234 integrates a surface-micromachined capacitive pressure-sensing element with on-chip BiCMOS signal conditioning, enabling direct analog voltage output proportional to absolute pressure. Its ratiometric architecture ties output scaling to supply voltage, minimizing errors from V_DD drift.

It implements broken-wire detection by monitoring output voltage limits under open-circuit or short-circuit conditions, and achieves ±1.5 kPa total accuracy over −40 °C to +125 °C without external calibration - enabled by factory-trimmed offset and sensitivity coefficients stored in on-die nonvolatile memory.

Key Specifications

Parameter	Value and Actual Design Meaning
Pressure Range	40 kPa to 115 kPa absolute - covers sea-level to ~10 km altitude, suitable for barometric and altimeter applications.
Output Voltage Range	1.33 V to 4.70 V (ratiometric) - linear transfer enables direct ADC interfacing with supply-referenced conversion.
Total Accuracy	±1.5 kPa over full temperature and pressure range - supports high-fidelity engine load estimation and weather trend tracking.
Operating Temperature	−40 °C to +125 °C - qualified for under-hood automotive environments and industrial outdoor enclosures.
Supply Voltage	4.75 V to 5.25 V - tight tolerance ensures stable biasing of internal reference and amplifier stages.
Response Time	≤10 ms (90% step response) - sufficient for dynamic barometric compensation during vehicle acceleration or rapid elevation change.
Thermal Resistance	R_thJA = 120 K/W (JEDEC JESD51-2) - informs PCB thermal design for sustained operation at max ambient temperature.

Pinout & Package

Package: PG-DSOF-8-16 - leadless, green-compliant, 5 mm × 4 mm × 1.05 mm SMD housing with exposed thermal pad; RoHS-compliant, AEC-Q100 qualified.

Pin/Terminal	Circuit Role	Design Meaning
V_DD	Positive supply input	Bias source for internal regulators, reference, and amplifiers; must be filtered per datasheet RC network.
GND	Ground reference	Analog and digital common return; requires low-impedance connection to thermal pad for stability.
V_OUT	Analog output	Ratiometric voltage proportional to pressure; drives ≤10 kΩ load with <10 mV error at extremes.
NC	No connect	Internally unconnected pin; must remain floating - no routing or soldering allowed.
NC	No connect	Second internally unconnected pin; electrically isolated, mechanically part of package integrity.
NC	No connect	Third internally unconnected pin; maintains symmetry and thermal uniformity in DSOF layout.
NC	No connect	Fourth internally unconnected pin; designated NC in all revisions - no functional assignment.
NC	No connect	Fifth internally unconnected pin; confirmed NC in Figure 1 (top view) and Table 1 of Rev. 1.0 datasheet.

Key Features

Feature	Design Value
Capacitive MEMS sensing element	Monolithic silicon diaphragm with integrated capacitor plates - enables long-term stability and minimal hysteresis (<0.1 kPa).
Factory-calibrated transfer function	Linear V_OUT = V_DD × (0.031 × P + 0.012) where P in kPa - eliminates need for system-level calibration in production.
Broken-wire detection	Active monitoring of V_OUT outside 0.2 V–4.9 V window - flags open-circuit or short-to-rail faults before ECU misinterpretation.
AEC-Q100 Grade 1 qualification	Qualified for automotive powertrain and chassis systems - validated across temperature cycling, HTOL, and ESD (HBM ±2 kV).
Ratiometric output architecture	Output scales directly with V_DD - cancels supply-induced gain error when using same V_DD for ADC reference.

Applications

Automotive Engine Control

Portable Altimeters

Use Scenario: Measuring ambient barometric pressure for real-time correction of mass air flow (MAF) sensor readings in turbocharged gasoline engines.

IC Role / Device Role / Timing Role: Absolute pressure transducer providing primary environmental reference for closed-loop air-fuel ratio calculation.

Use Value: Enables ±0.5% MAF correction accuracy across −40 °C to +125 °C, reducing emissions and improving fuel economy.

Use Scenario: Altitude tracking in handheld hiking GPS units requiring sub-10-meter vertical resolution.

IC Role / Device Role / Timing Role: Primary barometric sensor feeding pressure-derived elevation data to microcontroller's Kalman filter.

Use Value: Delivers ±12 m altitude uncertainty over 0–3000 m range, meeting consumer-grade navigation requirements.

Industrial Weather Stations

Medical Sleep Apnea Monitors

Use Scenario: Long-term atmospheric pressure logging in unattended outdoor sensor nodes powered by solar/battery.

IC Role / Device Role / Timing Role: Low-drift analog pressure front-end with built-in fault detection for autonomous field deployment.

Use Value: Maintains ±1.5 kPa accuracy over 10-year lifetime with no recalibration, supporting ISO 13822-compliant weather reporting.

Use Scenario: Detecting apnea events via subtle intrathoracic pressure shifts during sleep cycles.

IC Role / Device Role / Timing Role: High-sensitivity absolute pressure interface capturing 0.1 kPa differential changes at 10 Hz sampling.

Use Value: Resolves ≥0.5 kPa pressure excursions within 20 ms - sufficient to trigger therapeutic CPAP pressure ramp-up.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BMP280 (Bosch)	Digital I²C/SPI output; ±0.12 hPa (±0.012 kPa) typical accuracy; integrated temperature compensation.	Requires MCU firmware for data parsing and compensation; lacks native broken-wire detection.	Select when digital interface, lower noise, and higher resolution are prioritized over analog simplicity and fault resilience.
MPX5700 (NXP)	Analog output; 0–700 kPa range; ±1.5% FS accuracy (±10.5 kPa); −40 °C to +125 °C; no broken-wire detection.	Designed for industrial hydraulic/pneumatic pressure, not optimized for barometric resolution or automotive qualification.	Select only for non-automotive, wide-range industrial pressure monitoring where ±10.5 kPa error is acceptable.

Compared with BMP280 and MPX5700, the KP234 uniquely combines automotive qualification, ratiometric analog output, broken-wire diagnostics, and ±1.5 kPa absolute accuracy across the barometric band - making it optimal for safety-critical engine management and compact portable altimeters where analog integration and fault awareness are mandatory.

Availability

KP234 is available at Aetrix Electronics and suitable for automotive engine control, portable altimeters, and industrial weather stations requiring stable component supply, long-lifecycle support, and AEC-Q100 compliance.

Supply support for KP234 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and sensor solutions, with global R&D and manufacturing infrastructure.

The KP234 belongs to Infineon's SensoNor® pressure sensor product line, designed specifically for high-accuracy, automotive-grade absolute pressure measurement in engine control, climate systems, and safety-critical environmental monitoring.

FAQ

Does the KP234 require external calibration for automotive use?

No. The KP234 is factory-calibrated across temperature and pressure with trim coefficients stored in on-die memory. Its ±1.5 kPa total accuracy is guaranteed over −40 °C to +125 °C without user calibration - validated per AEC-Q100 Grade 1 test requirements including HTOL and temperature cycling.

What is the minimum recommended load impedance for V_OUT?

The datasheet specifies that V_OUT drives loads down to 10 kΩ with ≤10 mV deviation from ideal transfer function. For designs requiring tighter linearity, a buffer op-amp is recommended - especially when interfacing with high-impedance ADC inputs or long PCB traces.

How does broken-wire detection operate electrically?

Broken-wire detection monitors V_OUT continuously: if voltage falls below 0.2 V (short-to-ground) or exceeds 4.9 V (open-circuit or short-to-V_DD), the device asserts a fault condition detectable by downstream circuitry - implemented via internal comparator thresholds independent of supply variation.

Is the PG-DSOF-8-16 package compatible with standard reflow profiles?

Yes. The PG-DSOF-8-16 package is qualified for lead-free reflow per JEDEC J-STD-020D, with peak temperature up to 260 °C. The exposed thermal pad must be soldered to a dedicated PCB copper area (≥25 mm²) with ≥6 thermal vias for mechanical reliability and thermal performance.

KP234XTMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 8-SMD Module

Packaging:: Tape & Reel (TR)

Product Status:: Active

Applications:: Board Mount

Pressure Type:: Absolute

Operating Pressure:: 5.8PSI ~ 16.68PSI (40kPa ~ 115kPa)

Output Type:: Analog Voltage

Output:: 1.33 V ~ 4.7 V

Accuracy:: ±0.652PSI (±4.5kPa)

Voltage - Supply:: 4.5V ~ 5.5V

Port Size:: -

Port Style:: No Port

Features:: Amplified Output, Temperature Compensated

Termination Style:: SMD (SMT) Tab

Maximum Pressure:: -

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: -

KP234XTMA1 FAQ

1.How can I place an order for KP234XTMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for KP234XTMA1 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 KP234XTMA1 reliable?

The price and inventory of KP234XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KP234XTMA1 is usually 5 days.

3.What payment methods are accepted for KP234XTMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KP234XTMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for KP234XTMA1?

KP234XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your KP234XTMA1 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 KP234XTMA1?

For technical support, including KP234XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KP234XTMA1 requirements.

6.How does Aetrix verify that KP234XTMA1 is sourced from the original manufacturer or authorized distributors?

All KP234XTMA1 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 KP234XTMA1 meets industry standards.

7.What is the process for return or replacement of KP234XTMA1?

All KP234XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with KP234XTMA1, 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 KP234XTMA1 part is unused and in its original packaging.

Return procedure for KP234XTMA1:

1.Submit a request within 90 days.

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

Tech Hub

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…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…