ASCX150AN Equivalent & Substitute Parts Reference

Part Overview

The ASCX150AN is a pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for absolute pressure measurement applications up to 150 PSI (1034.21 kPa). This component features amplified analog voltage output with temperature compensation and is configured in a 6-SIP module package with through-hole termination.

The ASCX150AN is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this sensor.

Substiute Parts

ASCX150AN

Honeywell Sensing and Productivity SolutionsIn Stock: 939ASCX150AN Datasheet

Current PartRFQ

SSCDANN015PAAB5

Honeywell Sensing and Productivity SolutionsIn Stock: 1114SSCDANN015PAAB5 Datasheet

SimilarRFQ

SSCDANN150PAAB5

Honeywell Sensing and Productivity SolutionsIn Stock: 1163SSCDANN150PAAB5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASCX150AN is determined by the following critical parameters:

Pressure Rating Match: The substitute must support the same operating pressure of 150 PSI (1034.21 kPa) absolute to maintain functional equivalence in the application.

Output Characteristics: The substitute must provide analog voltage output in the range of 0.25 V to 4.75 V to ensure signal compatibility with existing signal conditioning and data acquisition circuits.

Port Configuration: The substitute must feature a male tube port with 0.19" (4.8 mm to 4.93 mm) diameter to maintain pneumatic interface compatibility.

Pressure Type: The substitute must measure absolute pressure, not gauge or differential pressure, to preserve measurement accuracy in the application context.

Termination and Mounting: The substitute must utilize PC pin termination with through-hole mounting to ensure compatibility with printed circuit board layouts designed for the ASCX150AN.

Based on these criteria, the following parts qualify as substitutes:

SSCDANN150PAAB5: Matches the 150 PSI operating pressure, 0.25 V to 4.75 V output range, male tube port, absolute pressure type, and through-hole PC pin termination. Represents an active product from the TruStability® SSC series with improved accuracy (±0.25% versus ±1%).

SSCDANN015PAAB5: Does not qualify as a functional substitute due to a 15 PSI operating pressure rating, which is incompatible with the 150 PSI requirement of the ASCX150AN application.

Parameter Comparison

Engineering Selection Recommendations

SSCDANN150PAAB5 as Primary Substitute:

The SSCDANN150PAAB5 is the qualified substitute for the obsolete ASCX150AN. Both components share identical operating pressure ratings (150 PSI absolute), output voltage range (0.25 V to 4.75 V), pressure measurement type (absolute), and termination methodology (PC pin through-hole). The SSCDANN150PAAB5 is an active product from Honeywell's TruStability® SSC series, ensuring ongoing availability and supply chain support.

Key Differences Requiring Design Consideration:

The SSCDANN150PAAB5 operates within a narrower supply voltage range (4.75 V to 5.25 V) compared to the ASCX150AN (4.5 V to 16 V). Applications requiring the extended supply voltage range of the original part must incorporate voltage regulation to maintain operation within the substitute's specifications.

The SSCDANN150PAAB5 features a barbed port style, whereas the ASCX150AN uses a barbless port. Tubing connection methods must be adapted accordingly.

The SSCDANN150PAAB5 is packaged in an 8-DIP configuration with top port orientation, differing from the 6-SIP module package of the ASCX150AN. PCB layout modifications are required to accommodate the different pin count and physical dimensions.

The operating temperature range of the SSCDANN150PAAB5 (-40°C to 85°C) is narrower than the ASCX150AN (-25°C to 105°C). Applications operating above 85°C or below -40°C require thermal management review.

The SSCDANN150PAAB5 provides superior accuracy (±0.25%) compared to the ASCX150AN (±1%), offering improved measurement precision.

Both components are RoHS Compliant and REACH Unaffected, maintaining regulatory compliance.

SSCDANN015PAAB5 Exclusion:

The SSCDANN015PAAB5 does not qualify as a substitute due to its 15 PSI operating pressure rating, which is incompatible with applications requiring 150 PSI measurement capability.

Frequently Asked Questions (FAQ)

Q: Can the SSCDANN150PAAB5 directly replace the ASCX150AN without any modifications?

A: The SSCDANN150PAAB5 provides functional pressure measurement equivalence at 150 PSI with matching output voltage characteristics. However, direct replacement requires PCB layout modifications due to different package types (8-DIP versus 6-SIP), supply voltage range adjustment (4.75 V to 5.25 V versus 4.5 V to 16 V), and tubing connection adaptation (barbed versus barbless port). These are engineering design changes, not functional incompatibilities.

Q: What is the significance of the barbed versus barbless port difference?

A: The port style determines the tubing connection method. Barbless ports use compression fittings or push-to-connect couplings. Barbed ports rely on tubing friction and barb retention. The application's pneumatic interface design must accommodate the barbed port configuration of the SSCDANN150PAAB5.

Q: Why is the SSCDANN015PAAB5 listed if it cannot substitute for the ASCX150AN?

A: The SSCDANN015PAAB5 is included for reference to clarify substitution boundaries. It demonstrates that pressure rating is a critical substitution criterion. The 15 PSI rating makes this part unsuitable for 150 PSI applications, despite sharing other characteristics such as output voltage range and termination style.

Q: Does the narrower operating temperature range of the SSCDANN150PAAB5 affect suitability?

A: The SSCDANN150PAAB5 operates from -40°C to 85°C, compared to the ASCX150AN's -25°C to 105°C range. Applications operating within the SSCDANN150PAAB5 temperature range experience no limitation. Applications requiring operation above 85°C or below -40°C must implement thermal management or seek alternative solutions.

Q: What is the impact of improved accuracy in the SSCDANN150PAAB5?

A: The SSCDANN150PAAB5 provides ±0.25% accuracy versus the ASCX150AN's ±1% accuracy. This represents a four-fold improvement in measurement precision. Applications benefit from tighter error margins without requiring design changes.

Q: Are there supply voltage considerations for the substitution?

A: The ASCX150AN accepts 4.5 V to 16 V supply voltage, while the SSCDANN150PAAB5 requires 4.75 V to 5.25 V. Applications using supply voltages outside the 4.75 V to 5.25 V range must incorporate voltage regulation to operate the SSCDANN150PAAB5 within specification.

Q: How do the package differences affect PCB design?

A: The ASCX150AN uses a 6-SIP module package, while the SSCDANN150PAAB5 uses an 8-DIP package with top port orientation. PCB footprints, pin assignments, and component placement must be redesigned. The SSCDANN150PAAB5's top port configuration may require different tubing routing compared to the original design.

Q: Are both parts RoHS compliant?

A: Yes, both the ASCX150AN and SSCDANN150PAAB5 are RoHS Compliant and REACH Unaffected, maintaining regulatory compliance for electronic component applications.