CPX15AF Pressure Sensor Equivalent & Substitute Parts

Part Overview

The CPX15AF is a 15 PSI absolute pressure sensor manufactured by Honeywell Sensing and Productivity Solutions. This component features a Wheatstone Bridge output configuration with a 0 mV to 253 mV output range at 5V supply, designed for through-hole board mount applications with a barbed male tube port (0.15" / 3.8mm). The CPX15AF is classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

CPX15AF

Honeywell Sensing and Productivity SolutionsIn Stock: 1209CPX15AF Datasheet

Current PartRFQ

NSCSANN015PAUNV

Honeywell Sensing and Productivity SolutionsIn Stock: 1110NSCSANN015PAUNV Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CPX15AF is determined by strict alignment of the following critical parameters:

Pressure Rating Compatibility: The substitute must support the same 15 PSI (103.42 kPa) absolute pressure operating point. This is the primary functional requirement.

Output Configuration: Both the main part and substitute must utilize Wheatstone Bridge output topology to maintain signal conditioning compatibility with existing circuit designs.

Mounting and Termination: Through-hole mounting with PC pin termination is required to ensure mechanical and electrical compatibility with printed circuit board layouts designed for the CPX15AF.

Supply Voltage Range: The substitute must operate within the 3V to 12V supply voltage window or provide a compatible subset of this range.

Port Interface: The barbed male tube port configuration must be maintained or functionally equivalent to ensure pneumatic system compatibility.

Regulatory Compliance: RoHS compliance status must be maintained for applications subject to environmental regulations.

The NSCSANN015PAUNV meets these substitution criteria while introducing improvements in accuracy and expanded operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: NSCSANN015PAUNV is the designated substitute for CPX15AF applications. This component is manufactured by the same supplier (Honeywell Sensing and Productivity Solutions) and maintains the same pressure rating, output topology, and mounting configuration.

Compliance Considerations: Both components are RoHS compliant and classified under the same HTSUS code (9026.20.4000), confirming regulatory alignment for procurement and deployment.

Product Status Advantage: The NSCSANN015PAUNV carries active product status, ensuring continued availability, technical support, and supply chain stability compared to the obsolete CPX15AF.

Performance Characteristics: The substitute provides enhanced accuracy (±0.25% versus ±2%) and extended low-temperature operating capability (-40°C versus -25°C minimum), supporting applications with more stringent environmental requirements.

Design Integration Factors: The NSCSANN015PAUNV features a side port configuration and slightly larger tube diameter (0.19" versus 0.15"). These mechanical differences require verification of pneumatic fitting compatibility and printed circuit board layout accommodation before implementation.

Frequently Asked Questions (FAQ)

Q: Can NSCSANN015PAUNV directly replace CPX15AF without circuit modifications?

A: Both components utilize identical Wheatstone Bridge output topology and operate within compatible supply voltage ranges (1.5V ~ 12V for NSCSANN015PAUNV encompasses the 3V ~ 12V requirement of CPX15AF). However, the output voltage range differs (0 ~ 75 mV versus 0 ~ 253 mV), requiring signal conditioning circuit adjustment or recalibration of analog-to-digital conversion parameters.

Q: What is the significance of the port size difference (0.15" versus 0.19")?

A: Port size determines pneumatic fitting compatibility. The 0.19" tube diameter of NSCSANN015PAUNV requires different barbed connectors than the 0.15" port of CPX15AF. Existing pneumatic tubing and fittings must be verified for compatibility or replaced accordingly.

Q: Does the side port configuration of NSCSANN015PAUNV affect board layout?

A: Yes. The side port orientation differs from the standard port configuration. Printed circuit board designs must accommodate this port placement to avoid mechanical interference with adjacent components or enclosure constraints.

Q: Is the lower maximum pressure rating (30 PSI versus 45 PSI) a limitation?

A: The maximum pressure rating indicates burst or damage threshold. Since both components operate at 15 PSI nominal, the lower maximum rating of NSCSANN015PAUNV does not affect normal operation. However, applications requiring overpressure margin or transient pressure spikes above 30 PSI must be evaluated.

Q: Why does NSCSANN015PAUNV have lower minimum supply voltage (1.5V versus 3V)?

A: The NSCSANN015PAUNV supports operation at lower supply voltages, providing design flexibility for battery-powered or low-voltage applications. Existing designs operating at 3V or higher are unaffected.

Q: Are there inventory or lead time considerations?

A: CPX15AF is obsolete with 1138 units in stock. NSCSANN015PAUNV is active with 1062 units available. For new designs or long-term production, NSCSANN015PAUNV ensures continued component availability and supply chain continuity.