KP125 Pressure Sensor - Equivalent & Substitute Parts

Part Overview

The KP125 is an absolute pressure sensor manufactured by Infineon Technologies, designed for board mount applications requiring pressure measurement in the 5.8PSI to 16.68PSI range (40kPa to 115kPa). The sensor provides analog voltage output from 0.5V to 4.5V with amplified, temperature-compensated output. The KP125 is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

KP125

Infineon TechnologiesIn Stock: 2160KP125 Datasheet

Current PartRFQ

KP235XTMA1

Infineon TechnologiesIn Stock: 2046KP235XTMA1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The KP235XTMA1 qualifies as a direct substitute for the KP125 based on the following critical parameters:

• Pressure Type & Range: Both sensors measure absolute pressure within the identical 5.8PSI ~ 16.68PSI (40kPa ~ 115kPa) operating range
• Output Characteristics: Both provide analog voltage output from 0.5V to 4.5V
• Supply Voltage: Both operate on 4.5V ~ 5.5V supply
• Temperature Range: Both function across -40°C ~ 125°C
• Mounting & Package: Both use surface mount termination in 8-SMD module configuration
• Signal Processing: Both feature amplified output with temperature compensation
• Port Configuration: Both have no port style

The KP235XTMA1 represents an active product status alternative to the obsolete KP125, with enhanced specifications including automotive-grade qualification (AEC-Q100) and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The KP235XTMA1 is the appropriate substitute for the obsolete KP125 in applications requiring continued system support or new implementations. The substitute maintains functional equivalence across all critical pressure measurement parameters, output characteristics, and environmental operating conditions.

The KP235XTMA1 offers additional advantages through active product status, automotive-grade qualification (AEC-Q100), and RoHS3 compliance, making it suitable for regulated and automotive applications. The accuracy specification difference (±0.174PSI versus ±0.348PSI) should be evaluated against application requirements, though both sensors operate within the same pressure and output ranges.

Packaging availability for KP235XTMA1 includes Cut Tape and Digi-Reel options, supporting both prototype and production volume requirements.

Frequently Asked Questions (FAQ)

Q: Can KP235XTMA1 directly replace KP125 in existing designs?

A: Yes. Both sensors share identical pressure ranges (5.8PSI ~ 16.68PSI), output voltage characteristics (0.5V ~ 4.5V), supply voltage requirements (4.5V ~ 5.5V), operating temperature range (-40°C ~ 125°C), and 8-SMD module packaging. No circuit modifications are required for substitution.

Q: What is the difference in accuracy between these sensors?

A: KP125 specifies ±0.174PSI (±1.2kPa) accuracy, while KP235XTMA1 specifies ±0.348PSI (±2.4kPa) accuracy. Both sensors meet the same pressure measurement range. Application-specific accuracy requirements should determine suitability.

Q: Why is KP125 listed as obsolete?

A: KP125 is no longer in active production. KP235XTMA1 represents the current active equivalent from Infineon Technologies for this pressure sensor category.

Q: Are there packaging differences between KP125 and KP235XTMA1?

A: Both use 8-SMD module packaging for surface mount applications. KP235XTMA1 is available in Cut Tape and Digi-Reel packaging formats, supporting various procurement and assembly workflows.

Q: Does KP235XTMA1 have additional certifications?

A: Yes. KP235XTMA1 includes AEC-Q100 automotive qualification and RoHS3 compliance, making it suitable for automotive and regulated applications. Both sensors maintain REACH Unaffected and EAR99 ECCN status.

Q: What is the maximum pressure rating for each sensor?

A: KP125 maximum pressure is not specified in available documentation. KP235XTMA1 specifies a maximum pressure rating of 21.76PSI (150kPa), providing additional overpressure protection margin.