ASCX15DN-90 Equivalent & Substitute Parts

Part Overview

The ASCX15DN-90 is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, rated for 15PSI (103.42kPa) differential measurement with analog voltage output of 0.25V to 4.75V. The sensor features a 6-SIP module package with male barbless tube ports (0.19" / 4.8mm) and is designed for through-hole board mount applications. The product is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing system support and new designs.

Substiute Parts

ASCX15DN-90

Honeywell Sensing and Productivity SolutionsIn Stock: 1175ASCX15DN-90 Datasheet

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SSCSNBN015PGAA5

Honeywell Sensing and Productivity SolutionsIn Stock: 874SSCSNBN015PGAA5 Datasheet

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SSCSNBN015PGAB5

Honeywell Sensing and Productivity SolutionsIn Stock: 1092SSCSNBN015PGAB5 Datasheet

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15 PSI-D-4V-ASCX

Amphenol All Sensors CorporationIn Stock: 120815 PSI-D-4V-ASCX Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASCX15DN-90 is determined by the following critical parameters: pressure type (differential vs. vented gauge), operating pressure rating, output voltage range, package configuration, port specifications, and supply voltage compatibility.

The substitute parts are grouped into two categories based on substitution logic:

Category 1: Direct Differential Pressure Equivalent The part 15 PSI-D-4V-ASCX maintains the differential pressure measurement type and identical operating pressure rating of ±15PSI. This part shares the same output voltage range (0.25V ~ 4.75V), port specifications (male barbless 0.19" tube, dual), and operating temperature range. The primary differences are the package type (4-SIP vs. 6-SIP), manufacturer (Amphenol All Sensors Corporation vs. Honeywell), and output signal type (Wheatstone Bridge vs. Analog Voltage).

Category 2: Vented Gauge Pressure Alternatives The parts SSCSNBN015PGAA5 and SSCSNBN015PGAB5 are vented gauge pressure sensors with identical operating pressure ratings of 15PSI. These parts share the same port specifications, mounting type, and termination style. The key differences are pressure type (vented gauge vs. differential), package configuration (4-SIP vs. 6-SIP), output voltage ranges (0.5V ~ 4.5V or 0.25V ~ 4.75V), and supply voltage requirements (4.75V ~ 5.25V vs. 4.5V ~ 16V).

Parameter Comparison

Engineering Selection Recommendations

For Direct Differential Pressure Measurement Applications:

The 15 PSI-D-4V-ASCX is the primary equivalent for applications requiring differential pressure sensing at ±15PSI. This part maintains the differential pressure type and identical operating pressure specification. The part is manufactured by Amphenol All Sensors Corporation and carries ROHS3 compliance certification. The 4-SIP package differs from the original 6-SIP module, requiring PCB layout modification. The Wheatstone Bridge output type differs from the original analog voltage output, necessitating signal conditioning circuit changes. The operating temperature range remains identical (-25°C ~ 105°C), and supply voltage compatibility is maintained within the 4.5V ~ 5.5V range.

For Vented Gauge Pressure Applications:

The SSCSNBN015PGAB5 and SSCSNBN015PGAA5 are active Honeywell TruStability® SSC series sensors suitable for applications where vented gauge pressure measurement is acceptable. Both parts carry RoHS compliance certification and feature improved accuracy (±0.25% vs. ±1%). The SSCSNBN015PGAB5 provides output range matching (0.25V ~ 4.75V), while the SSCSNBN015PGAA5 offers a reduced output range (0.5V ~ 4.5V). Both require supply voltage within 4.75V ~ 5.25V, which is narrower than the original specification. Operating temperature range is reduced to -40°C ~ 85°C. The 4-SIP package configuration with dual ports on the same side requires PCB layout modification.

All substitute parts maintain port specifications (male barbless 0.19" tube, dual), through-hole mounting type, and PC pin termination style. Selection should be based on pressure measurement type requirements (differential vs. vented gauge), output signal type compatibility, supply voltage availability, and thermal operating range constraints.

Frequently Asked Questions (FAQ)

Q: Can the SSCSNBN015PGAB5 or SSCSNBN015PGAA5 directly replace the ASCX15DN-90?

A: These parts are not direct replacements due to pressure type differences. The ASCX15DN-90 measures differential pressure, while the SSCSNBN015PGAB5 and SSCSNBN015PGAA5 measure vented gauge pressure. Differential and vented gauge pressure measurements produce different output values for the same physical pressure condition. Application compatibility depends on whether the system requires differential or gauge pressure measurement.

Q: What are the package differences between the ASCX15DN-90 and substitute parts?

A: The ASCX15DN-90 uses a 6-SIP module package, while the 15 PSI-D-4V-ASCX uses a 4-SIP package, and the SSCSNBN015PGAB5 and SSCSNBN015PGAA5 use a 4-SIP configuration with dual ports on the same side. These package differences require PCB layout modifications for pin-to-pin replacement. The physical footprint, pin spacing, and port orientation differ between these configurations.

Q: Are the output voltage ranges compatible between the ASCX15DN-90 and substitute parts?

A: The ASCX15DN-90 and 15 PSI-D-4V-ASCX both provide 0.25V ~ 4.75V output range. The SSCSNBN015PGAB5 also provides 0.25V ~ 4.75V output range. The SSCSNBN015PGAA5 provides a reduced range of 0.5V ~ 4.5V. Signal conditioning circuits designed for the original 0.25V ~ 4.75V range require adjustment for the SSCSNBN015PGAA5 due to the different minimum output voltage.

Q: What supply voltage requirements apply to each substitute part?

A: The ASCX15DN-90 accepts 4.5V ~ 16V supply voltage, providing broad compatibility with various power supplies. The 15 PSI-D-4V-ASCX requires 4.5V ~ 5.5V. The SSCSNBN015PGAB5 and SSCSNBN015PGAA5 require 4.75V ~ 5.25V. Systems with supply voltages outside these narrower ranges require power supply modification or regulation.

Q: How do accuracy specifications compare between the ASCX15DN-90 and substitute parts?

A: The ASCX15DN-90 specifies ±1% accuracy. The 15 PSI-D-4V-ASCX provides ±0.5% accuracy. The SSCSNBN015PGAB5 and SSCSNBN015PGAA5 provide ±0.25% accuracy. Substitute parts with improved accuracy may reduce system-level measurement uncertainty but do not provide backward compatibility with calibration data based on the original ±1% specification.

Q: What are the operating temperature range differences?

A: The ASCX15DN-90 operates from -25°C ~ 105°C. The 15 PSI-D-4V-ASCX maintains this identical range. The SSCSNBN015PGAB5 and SSCSNBN015PGAA5 operate from -40°C ~ 85°C, providing lower temperature capability but reduced upper temperature limit. Applications requiring operation above 85°C cannot use the Honeywell TruStability® SSC series sensors.

Q: What is the difference between Wheatstone Bridge and Analog Voltage output types?

A: The ASCX15DN-90 provides direct analog voltage output (0.25V ~ 4.75V). The 15 PSI-D-4V-ASCX provides Wheatstone Bridge output, which requires external signal conditioning circuitry (amplifier and analog-to-digital conversion) to produce usable voltage or digital signals. Direct voltage output sensors integrate amplification internally, while Wheatstone Bridge outputs require external amplification.

Q: Are all substitute parts RoHS compliant?

A: Yes. The ASCX15DN-90 is RoHS Compliant. The 15 PSI-D-4V-ASCX is ROHS3 Compliant. The SSCSNBN015PGAB5 and SSCSNBN015PGAA5 are RoHS Compliant. All parts meet RoHS compliance requirements for hazardous substance restrictions.

Q: Which substitute part is most suitable for new designs?

A: Selection depends on application requirements. For differential pressure measurement at ±15PSI with direct voltage output, the 15 PSI-D-4V-ASCX is the functional equivalent, though it requires Wheatstone Bridge signal conditioning. For vented gauge pressure applications, the SSCSNBN015PGAB5 (matching output range) or SSCSNBN015PGAA5 (reduced output range) are suitable, with the advantage of active product status and improved accuracy. All substitute parts are currently in active production status, ensuring long-term availability.