SX01DN Pressure Sensor Equivalent & Substitute Parts

Part Overview

The SX01DN is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications with a 1PSI (6.89kPa) operating pressure range. The sensor outputs a 0 mV to 20 mV signal at 5V supply and features a Wheatstone Bridge output configuration with ±0.5% accuracy. The product is currently obsolete, making identification of compatible substitute components essential for system redesign, maintenance, and production continuity. Alternative parts must maintain equivalent pressure measurement capabilities, output characteristics, and physical mounting requirements.

Substiute Parts

SX01DN

Honeywell Sensing and Productivity SolutionsIn Stock: 844SX01DN Datasheet

Current PartRFQ

NSCSHHN001PDUNV

Honeywell Sensing and Productivity SolutionsIn Stock: 939NSCSHHN001PDUNV Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the SX01DN must satisfy the following criteria based on allowed electrical and mechanical parameters:

Pressure Measurement Compatibility: The substitute must operate within the differential pressure range of ±1PSI (±6.89kPa) to maintain functional equivalence with the original 1PSI operating specification.

Output Signal Characteristics: The substitute must utilize a Wheatstone Bridge output configuration to ensure signal conditioning compatibility with existing circuit designs.

Supply Voltage Range: The substitute must accept the 12V supply voltage specified for the SX01DN. Substitutes with wider supply voltage ranges (1.5V ~ 12V) remain compatible as they encompass the original requirement.

Physical Port Configuration: The substitute must feature barbed male tube ports for pneumatic connections. Port size variations (0.16" versus 0.19") represent mechanical differences that require adapter evaluation but do not preclude functional substitution.

Mounting and Packaging: The substitute must maintain Through Hole mounting type and 4-SIP package configuration for direct board-level integration.

Accuracy and Temperature Range: The substitute must maintain operating temperature range of -40°C ~ 85°C. Improved accuracy specifications (±0.25% versus ±0.5%) represent enhanced performance and are acceptable.

Regulatory Compliance: The substitute must maintain RoHS Compliance and MSL Rating 1 status to satisfy manufacturing and environmental requirements.

Parameter Comparison

Engineering Selection Recommendations

The NSCSHHN001PDUNV represents the primary substitute for the obsolete SX01DN based on manufacturer continuity, core functional parameters, and active product status. Both sensors are manufactured by Honeywell Sensing and Productivity Solutions and maintain equivalent differential pressure measurement, Wheatstone Bridge output configuration, and operating temperature specifications.

Electrical Compatibility: The NSCSHHN001PDUNV accepts the 12V supply voltage required by the SX01DN and operates across a wider supply range (1.5V ~ 12V). The output signal span differs (65 mV versus 20 mV at 5V), requiring signal conditioning circuit adjustment to maintain equivalent analog-to-digital conversion scaling in the host system.

Mechanical Compatibility: The substitute features a smaller barbed tube port diameter (0.16" versus 0.19"), necessitating pneumatic tubing adapter selection or tubing diameter modification. Both sensors maintain Through Hole mounting and 4-SIP package configuration for direct PCB integration.

Performance Enhancement: The NSCSHHN001PDUNV provides improved accuracy (±0.25% versus ±0.5%), representing enhanced measurement precision. The substitute's maximum pressure rating (±10PSI) is lower than the original (20PSI), requiring system pressure limit verification to confirm operational compatibility.

Regulatory and Compliance Status: Both components maintain RoHS Compliance, MSL Rating 1, and equivalent environmental certifications. The substitute's active product status ensures long-term availability and supply chain continuity compared to the obsolete SX01DN.

Frequently Asked Questions (FAQ)

Q: Can the NSCSHHN001PDUNV directly replace the SX01DN without circuit modifications?

A: The NSCSHHN001PDUNV is functionally equivalent for differential pressure measurement but requires two modifications: (1) Signal conditioning adjustment due to different output span (65 mV versus 20 mV), and (2) Pneumatic tubing adapter or modification for the smaller port diameter (0.16" versus 0.19"). Electrical supply voltage compatibility is maintained at 12V.

Q: What is the significance of the different output ranges (20 mV versus 65 mV)?

A: The output span difference reflects different sensor sensitivity. The SX01DN outputs 20 mV across its 1PSI range, while the NSCSHHN001PDUNV outputs 65 mV across the same ±1PSI range. Analog signal conditioning circuits must be recalibrated to maintain equivalent pressure-to-voltage conversion ratios in data acquisition systems.

Q: Are the port configurations compatible?

A: Both sensors feature barbed male tube ports for pneumatic connections. The port diameter differs (0.19" versus 0.16"), requiring either pneumatic tubing adapters or tubing diameter modification. The NSCSHHN001PDUNV specifies "Dual Ports, Same Side" configuration, which may differ from the original port layout.

Q: Does the lower maximum pressure rating of the NSCSHHN001PDUNV affect substitution?

A: The substitute's maximum pressure rating (±10PSI) is lower than the original (20PSI). Substitution is valid only if system operating pressures remain below ±10PSI. Applications requiring higher pressure capability must identify alternative substitutes or retain the original SX01DN if inventory permits.

Q: What is the advantage of the improved accuracy specification?

A: The NSCSHHN001PDUNV provides ±0.25% accuracy compared to the SX01DN's ±0.5%, representing a 50% reduction in measurement uncertainty. This enhancement improves system measurement precision without introducing compatibility issues.

Q: Is the NSCSHHN001PDUNV available in production quantities?

A: Yes, the NSCSHHN001PDUNV maintains Active product status with current inventory availability, ensuring supply chain continuity. The SX01DN is Obsolete, making the substitute the recommended solution for new designs and production continuity.

Q: Are regulatory certifications equivalent between the two sensors?

A: Both sensors maintain RoHS Compliance, MSL Rating 1 (Unlimited), REACH Unaffected status, and equivalent ECCN and HTSUS classifications. Regulatory compliance is maintained across the substitution.