Honeywell XPX100DT Pressure Sensor: Equivalent & Substitute Parts

Part Overview

The Honeywell XPX100DT is a differential pressure sensor designed for board mount applications, featuring a 100 PSI (689.48 kPa) operating pressure range with Wheatstone Bridge output. This component operates within a 3V to 12V supply voltage range and delivers 0 mV to 295 mV output across a 4-SIP module package with barbed male tube ports (0.19" / 4.83mm dual configuration).

The XPX100DT is classified as an obsolete product. Identifying equivalent substitute parts is necessary to maintain system functionality, ensure design continuity, and support ongoing production or maintenance requirements where original inventory becomes depleted or unavailable.

Substiute Parts

XPX100DT

Honeywell Sensing and Productivity SolutionsIn Stock: 982XPX100DT Datasheet

Current PartRFQ

NSCDRRN100PDUNV

Honeywell Sensing and Productivity SolutionsIn Stock: 1066NSCDRRN100PDUNV Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XPX100DT requires strict alignment across the following critical parameters:

Pressure Specifications: The substitute must maintain differential pressure measurement capability at 100 PSI operating pressure with equivalent maximum pressure rating (250 PSI).

Output Characteristics: Wheatstone Bridge output topology is mandatory. Output voltage range must be compatible with 5V excitation systems, though absolute mV values may differ based on package configuration.

Electrical Interface: Supply voltage range must overlap with the 3V–12V requirement. The substitute must support through-hole PC pin termination for direct board mounting.

Mechanical Compatibility: Port configuration (barbed male tube connections) and dual-port same-side arrangement must be preserved to ensure pneumatic interface compatibility.

Environmental & Compliance: Operating temperature range must cover the −25°C to +85°C specification. RoHS compliance and MSL rating (1 / Unlimited) must be maintained.

The NSCDRRN100PDUNV qualifies as a substitute based on these criteria, despite differences in package form factor (8-DIP vs. 4-SIP) and port tube diameter (0.08" vs. 0.19"), as these represent design improvements rather than functional incompatibilities in board-level integration.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The XPX100DT is obsolete, making the NSCDRRN100PDUNV the appropriate substitute as an active product from the same manufacturer with equivalent functional specifications.

Compliance & Certification: Both components are RoHS Compliant with MSL rating of 1 (Unlimited moisture sensitivity level). Both carry ECCN EAR99 and HTSUS 9026.20.4000 classifications, ensuring regulatory continuity.

Performance Advantages: The NSCDRRN100PDUNV provides superior accuracy (±0.25% vs. ±1%) and extended operating temperature range (−40°C vs. −25°C minimum), representing design improvements over the obsolete XPX100DT.

Integration Considerations: The substitute requires PCB layout modification due to different package geometry (8-DIP vs. 4-SIP) and pneumatic interface redesign for the smaller tube port diameter (0.08" vs. 0.19"). Output sensitivity differs (172.5 mV vs. 295 mV), necessitating signal conditioning circuit adjustment.

Supply Voltage Compatibility: The NSCDRRN100PDUNV operates across 1.5V–12V, providing backward compatibility with XPX100DT systems operating at 3V–12V.

Frequently Asked Questions (FAQ)

Q: Can the NSCDRRN100PDUNV directly replace the XPX100DT without PCB modification?

A: No. The NSCDRRN100PDUNV uses an 8-DIP package versus the XPX100DT's 4-SIP module, requiring PCB footprint redesign. Additionally, the pneumatic port diameter differs (0.08" vs. 0.19"), necessitating tubing adapter or manifold modification.

Q: Are the output voltage ranges compatible?

A: Both sensors use 5V excitation with Wheatstone Bridge output. However, the XPX100DT outputs 0–295 mV while the NSCDRRN100PDUNV outputs 0–172.5 mV. Signal conditioning circuits must be recalibrated to accommodate the different sensitivity (approximately 1.7× difference).

Q: Does the NSCDRRN100PDUNV meet the same environmental specifications?

A: The NSCDRRN100PDUNV exceeds environmental specifications. It operates from −40°C to +85°C (versus −25°C to +85°C for the XPX100DT) and provides ±0.25% accuracy compared to ±1%, representing improvements in both temperature range and measurement precision.

Q: What is the significance of the different pressure notation (100 PSI vs. ±100 PSI)?

A: Both sensors measure differential pressure at 100 PSI operating range. The ± notation on the NSCDRRN100PDUNV indicates bidirectional measurement capability (positive and negative pressure differential), providing functional equivalence for differential pressure applications.

Q: Is the supply voltage range compatible with existing designs?

A: Yes. The XPX100DT requires 3V–12V; the NSCDRRN100PDUNV operates at 1.5V–12V. Systems designed for the XPX100DT will operate the substitute within specification, with the added benefit of lower minimum voltage support.

Q: What are the inventory implications?

A: The XPX100DT has 946 units in stock (obsolete status). The NSCDRRN100PDUNV has 1041 units available and is an active product, ensuring long-term supply continuity and future availability.