Equivalent & Substitute Parts for XCX30DNH Pressure Sensor

Part Overview

The XCX30DNH is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications with a 30 PSI (±206.84 kPa) differential pressure range. The sensor outputs a Wheatstone Bridge signal of 0 mV to 90 mV at 12V supply and features temperature compensation for stable operation across -25°C to 85°C. The XCX30DNH is classified as obsolete, making equivalent substitute parts necessary for ongoing system support and new designs requiring this pressure measurement capability.

Substiute Parts

XCX30DNH

Honeywell Sensing and Productivity SolutionsIn Stock: 940XCX30DNH Datasheet

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SCX30DN

Honeywell Sensing and Productivity SolutionsIn Stock: 776SCX30DN Datasheet

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30 PSI-D-HGRADE-MV

Amphenol All Sensors CorporationIn Stock: 111030 PSI-D-HGRADE-MV Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the XCX30DNH are qualified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Pressure Type: Differential
• Operating Pressure: 30 PSI (206.84 kPa) nominal
• Output Type: Wheatstone Bridge
• Output Signal: 0 mV ~ 90 mV (12V)
• Port Size: Male - 0.19" (4.8 mm) Tube, Dual
• Package Type: 6-SIP Module
• Mounting Type: Through Hole
• Temperature Compensation: Required

Secondary Compatibility Considerations:

• Supply Voltage Range: Must accommodate 12V operation
• Maximum Pressure Rating: Must equal or exceed ±30 PSI
• Operating Temperature Range: Must cover -25°C to 85°C minimum
• RoHS Compliance: Required for regulatory alignment

The substitute parts SCX30DN and 30 PSI-D-HGRADE-MV meet these criteria with variations in accuracy, maximum pressure rating, and port style that do not affect core functional substitution.

Parameter Comparison

Engineering Selection Recommendations

SCX30DN Selection Criteria: The SCX30DN is an active product from Honeywell Sensing and Productivity Solutions, providing direct manufacturer continuity. This substitute maintains identical pressure range, output signal, and package configuration. The SCX30DN operates at 20V supply voltage, which exceeds the XCX30DNH specification of 3V to 16V; however, the sensor can function within the 12V nominal operating point of the original design. The maximum pressure rating of 60 PSI is lower than the XCX30DNH (90 PSI), requiring verification that system overpressure protection does not rely on the sensor's maximum pressure specification. The SCX30DN includes ±1% accuracy specification and extended operating temperature range (-40°C to 85°C), providing enhanced performance margins.

30 PSI-D-HGRADE-MV Selection Criteria: The 30 PSI-D-HGRADE-MV is an active product from Amphenol All Sensors Corporation, offering superior accuracy (±0.5%) and matching maximum pressure rating (90 PSI) to the original XCX30DNH. Supply voltage specification of 16V accommodates the 12V nominal operating point. The port style differs from the original (barbless versus barbed), requiring mechanical interface verification with existing tubing connections. This substitute provides the highest accuracy specification among available options and maintains full pressure rating compatibility.

Compliance and Certification: Both substitute parts maintain RoHS compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring regulatory alignment and handling compatibility with the original XCX30DNH.

Frequently Asked Questions (FAQ)

Q: Can SCX30DN replace XCX30DNH in all applications? A: SCX30DN provides functional substitution for pressure measurement at 30 PSI differential with identical output signal and package type. The 20V supply voltage specification exceeds the original 3V to 16V range but operates correctly at 12V nominal. The reduced maximum pressure rating (60 PSI versus 90 PSI) requires confirmation that system overpressure protection does not depend on sensor maximum pressure specification.

Q: What is the difference between barbed and barbless port styles? A: Barbed ports feature inward-facing barbs that grip tubing mechanically, while barbless ports require alternative connection methods such as compression fittings or hose clamps. The XCX30DNH uses barbed ports; the 30 PSI-D-HGRADE-MV uses barbless ports. Mechanical interface compatibility must be verified before substitution.

Q: Does the 30 PSI-D-HGRADE-MV require different circuit design? A: No. The 30 PSI-D-HGRADE-MV outputs 0 mV to 90 mV Wheatstone Bridge signal identical to the XCX30DNH, requiring no signal conditioning circuit modifications. Supply voltage of 16V accommodates 12V nominal operation. The ±0.5% accuracy specification may improve system performance without circuit redesign.

Q: Are there tubing size compatibility issues? A: Port size specifications are 0.19" (4.8 mm) for XCX30DNH and 0.19" (4.83 mm) for 30 PSI-D-HGRADE-MV. This 0.03 mm difference is within standard tubing tolerance and does not create compatibility issues. SCX30DN matches the original 0.19" (4.8 mm) specification exactly.

Q: What is the impact of extended operating temperature range in SCX30DN? A: SCX30DN operates from -40°C to 85°C compared to XCX30DNH at -25°C to 85°C. The extended lower temperature range provides additional margin for cold environment applications but does not affect substitution compatibility for systems designed within the original -25°C to 85°C specification.

Q: Can both substitutes be used interchangeably in the same design? A: Both SCX30DN and 30 PSI-D-HGRADE-MV meet core functional requirements but differ in accuracy, maximum pressure, and port style. Selection depends on specific application requirements for accuracy, overpressure protection, and mechanical interface compatibility. Once selected, a single substitute should be standardized to maintain design consistency.