Equivalent & Substitute Parts for SX05DN Pressure Sensor

Part Overview

The SX05DN is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications requiring 5PSI (34.47kPa) differential pressure measurement. The sensor outputs a Wheatstone Bridge signal of 0 mV to 75 mV at 5V supply voltage with ±0.5% accuracy. The product is classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations where equivalent functionality is required.

Substiute Parts

SX05DN

Honeywell Sensing and Productivity SolutionsIn Stock: 806SX05DN Datasheet

Current PartRFQ

NSCSHHN005PDUNV

Honeywell Sensing and Productivity SolutionsIn Stock: 743NSCSHHN005PDUNV Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SX05DN pressure sensor is determined by the following critical parameters that must align between the main part and substitute components:

Pressure Measurement Capability: The substitute must support differential pressure measurement at 5PSI (34.47kPa) operating range with maximum pressure rating of at least 20PSI (137.9kPa).

Output Signal Type: The substitute must provide Wheatstone Bridge output to maintain compatibility with existing signal conditioning and measurement circuits.

Supply Voltage Compatibility: The substitute must operate within the 12V supply voltage specified for the original design, or provide a supply voltage range that includes 12V operation.

Mechanical Interface: The substitute must feature barbed male tube ports for pneumatic connections. Port size differences require evaluation based on system tubing specifications.

Thermal Operating Range: The substitute must maintain operation across the -40°C to 85°C temperature range to ensure consistent performance in the intended application environment.

Package Configuration: The substitute must utilize a 4-SIP module package format compatible with through-hole mounting on printed circuit boards.

Compliance and Certification: The substitute must maintain RoHS compliance status to satisfy regulatory and procurement requirements.

The NSCSHHN005PDUNV meets these substitution criteria as an active product from the same manufacturer with equivalent differential pressure measurement capability, Wheatstone Bridge output, compatible operating temperature range, through-hole mounting, and RoHS compliance.

Parameter Comparison

Engineering Selection Recommendations

The NSCSHHN005PDUNV serves as a functional substitute for the obsolete SX05DN pressure sensor based on the following engineering criteria:

Product Availability: The SX05DN is classified as obsolete, whereas the NSCSHHN005PDUNV is an active product currently manufactured by Honeywell Sensing and Productivity Solutions. This ensures long-term availability and supply chain continuity for new designs and system maintenance.

Regulatory Compliance: Both components maintain RoHS compliance status, satisfying regulatory requirements for electronic component procurement and system deployment.

Core Functional Equivalence: Both sensors provide differential pressure measurement using Wheatstone Bridge output with identical operating pressure ranges (5PSI / 34.47kPa), maximum pressure ratings (20PSI / 137.9kPa), and thermal operating ranges (-40°C to 85°C). Both support 12V supply voltage operation and through-hole mounting in 4-SIP module packages.

Performance Improvements: The NSCSHHN005PDUNV offers enhanced accuracy (±0.25% versus ±0.5%) and expanded supply voltage compatibility (1.5V to 12V range versus fixed 12V), providing design flexibility for future applications.

Integration Considerations: Two parameters require evaluation during integration:

The output signal span differs between components (75 mV versus 150 mV at 5V supply). Signal conditioning circuits must be adjusted to accommodate the doubled output span of the substitute component.

The pneumatic port size differs (0.19" versus 0.16" tube diameter). System tubing connections require either adapter fittings or tubing replacement to match the substitute component's barbed port dimensions.

Frequently Asked Questions (FAQ)

Q: Can the NSCSHHN005PDUNV directly replace the SX05DN without circuit modifications?

A: The NSCSHHN005PDUNV provides equivalent differential pressure measurement and Wheatstone Bridge output, but the output signal span is doubled (150 mV versus 75 mV). Signal conditioning and analog-to-digital conversion circuits must be recalibrated to accommodate this output range difference. Pneumatic tubing connections require adaptation due to the 0.16" port size versus the original 0.19" specification.

Q: What is the impact of the different output voltage ranges on system performance?

A: The NSCSHHN005PDUNV outputs 0 mV to 150 mV across the 5PSI measurement range, compared to 0 mV to 75 mV for the SX05DN. This doubled sensitivity requires adjustment of signal conditioning gain and analog-to-digital converter scaling. The improved accuracy (±0.25% versus ±0.5%) may provide enhanced measurement precision if the signal chain is properly recalibrated.

Q: Are the 4-SIP module packages mechanically compatible?

A: Both components use 4-SIP through-hole module packages compatible with standard printed circuit board mounting. The NSCSHHN005PDUNV specifies "Dual Ports, Same Side" configuration, which may differ from the original SX05DN port arrangement. PCB layout verification is required to confirm mechanical fit and port orientation compatibility.

Q: What tubing adapter requirements exist due to port size differences?

A: The SX05DN features 0.19" (4.8mm) barbed male tube ports, while the NSCSHHN005PDUNV uses 0.16" (3.94mm) barbed male tube ports. Existing tubing sized for 0.19" connections will not fit the substitute component. Either tubing replacement or barbed adapter fittings are required to establish pneumatic connections.

Q: Does the NSCSHHN005PDUNV support the same 12V supply voltage?

A: Yes. The NSCSHHN005PDUNV operates across a 1.5V to 12V supply voltage range, which includes the 12V specification of the original SX05DN. The expanded supply range provides design flexibility for future applications requiring lower supply voltages.

Q: What is the significance of the "Active" product status for the NSCSHHN005PDUNV?

A: Active product status indicates that the NSCSHHN005PDUNV is currently manufactured and supported by Honeywell Sensing and Productivity Solutions. This ensures component availability for new designs and ongoing system maintenance, contrasting with the obsolete SX05DN which is no longer in production.

Q: Are both components RoHS compliant?

A: Yes. Both the SX05DN and NSCSHHN005PDUNV maintain RoHS compliance status, satisfying regulatory requirements for electronic component procurement and system deployment in regulated industries and markets.