SX15AN Pressure Sensor: Equivalent & Substitute Parts

Part Overview

The SX15AN is a 15 PSI absolute pressure sensor manufactured by Honeywell Sensing and Productivity Solutions. This component features a Wheatstone Bridge output with 0 mV ~ 110 mV (5V) signal range and is designed for board mount applications with through-hole mounting. The SX15AN is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

SX15AN

Honeywell Sensing and Productivity SolutionsIn Stock: 902SX15AN Datasheet

Current PartRFQ

NSCSSNN015PAUNV

Honeywell Sensing and Productivity SolutionsIn Stock: 1192NSCSSNN015PAUNV Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SX15AN is determined by the following critical parameters:

Pressure Specification: Both the main part and substitute must operate at 15 PSI (103.42 kPa) absolute pressure rating.

Output Configuration: The output type must be Wheatstone Bridge with compatible signal range. The SX15AN outputs 0 mV ~ 110 mV (5V); substitute parts must provide equivalent signal conditioning.

Package and Mounting: The 4-SIP Module package with through-hole mounting must be maintained for PCB compatibility.

Operating Environment: Temperature range of -40°C ~ 85°C must be supported.

Compliance: RoHS compliance status must be maintained.

The NSCSSNN015PAUNV meets these core substitution criteria while offering enhanced specifications in accuracy and supply voltage flexibility.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The SX15AN is obsolete, while the NSCSSNN015PAUNV is active. For new designs and ongoing production support, the NSCSSNN015PAUNV is the appropriate selection.

Compliance and Certification: Both parts maintain RoHS compliance and identical MSL ratings (1 - Unlimited), ensuring equivalent environmental and handling requirements.

Output Signal Compatibility: The NSCSSNN015PAUNV provides a lower output range (0 mV ~ 75 mV versus 0 mV ~ 110 mV). System signal conditioning and analog-to-digital conversion parameters must accommodate this difference. The reduced output range may require recalibration of signal processing circuits.

Supply Voltage Flexibility: The NSCSSNN015PAUNV accepts 1.5V ~ 12V supply voltage, compared to the SX15AN's fixed 12V requirement. This provides design flexibility for lower-power applications.

Accuracy Enhancement: The NSCSSNN015PAUNV offers improved accuracy (±0.25% versus ±0.5%), providing better measurement precision.

Maximum Pressure Rating: The NSCSSNN015PAUNV has a lower maximum pressure rating (30 PSI versus 45 PSI). Verify that system overpressure conditions do not exceed 30 PSI.

Frequently Asked Questions (FAQ)

Q: Can the NSCSSNN015PAUNV directly replace the SX15AN without circuit modifications?

A: Direct replacement requires evaluation of signal conditioning circuits. The NSCSSNN015PAUNV outputs 0 mV ~ 75 mV compared to the SX15AN's 0 mV ~ 110 mV. Analog signal processing, amplification, and ADC scaling must be adjusted accordingly. The flexible supply voltage (1.5V ~ 12V) is backward compatible with 12V systems.

Q: What is the impact of the different output ranges?

A: The NSCSSNN015PAUNV's reduced output range (75 mV versus 110 mV) results in lower signal amplitude. This affects signal-to-noise ratio and may require recalibration of analog-to-digital converters and signal processing algorithms. Ensure adequate amplification and filtering are applied.

Q: Are there port or termination differences?

A: The SX15AN features a male 0.19" (4.8mm) barbed tube port, while the NSCSSNN015PAUNV has no port and uses PC pin termination. System integration must account for this mechanical difference. Pressure coupling methods must be redesigned accordingly.

Q: Is the NSCSSNN015PAUNV suitable for applications requiring 45 PSI overpressure protection?

A: No. The NSCSSNN015PAUNV maximum pressure rating is 30 PSI (206.84 kPa). Applications requiring 45 PSI overpressure capability must use the SX15AN or identify alternative parts with equivalent maximum pressure ratings.

Q: What are the packaging and mounting compatibility considerations?

A: Both parts use 4-SIP Module packages with through-hole mounting, ensuring PCB footprint compatibility. Verify that board layout and component spacing accommodate the specific pin configuration of the NSCSSNN015PAUNV.

Q: Does the improved accuracy of the NSCSSNN015PAUNV require system recalibration?

A: The NSCSSNN015PAUNV's ±0.25% accuracy is superior to the SX15AN's ±0.5%. System calibration procedures should be reviewed to leverage this improved accuracy specification. Existing calibration data from SX15AN systems may require adjustment.