ASDX015D44R-DO Pressure Sensor Equivalent & Substitute Parts

Part Overview

The ASDX015D44R-DO is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications requiring 15PSI (103.42kPa) differential pressure measurement with 12-bit digital output via I2C interface. The sensor features temperature compensation and operates across an industrial temperature range of -20°C to 105°C.

This part is classified as obsolete. Identifying equivalent and substitute components is necessary to support legacy system maintenance, design updates, and procurement continuity when original inventory becomes unavailable.

Substiute Parts

ASDX015D44R-DO

Honeywell Sensing and Productivity SolutionsIn Stock: 860ASDX015D44R-DO Datasheet

Current PartRFQ

ASDXRRX001PGAA5

Honeywell Sensing and Productivity SolutionsIn Stock: 2612ASDXRRX001PGAA5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASDX015D44R-DO is constrained by the following critical parameters:

Pressure Measurement Characteristics: The ASDX015D44R-DO measures differential pressure at 15PSI operating range. Substitute components must maintain compatibility with this pressure specification or operate within equivalent differential pressure ranges for the target application.

Output Interface and Resolution: The I2C digital output with 12-bit resolution is a defining characteristic. Substitute parts must provide equivalent digital communication protocols and resolution to ensure firmware and hardware interface compatibility.

Electrical Specifications: Supply voltage range (4.75V ~ 5.25V) and accuracy (±2%) establish the electrical operating envelope. Substitutes must operate within these parameters.

Physical Interface: The male barbless tube port (0.09" / 2.29mm) and 8-DIP module package define the mechanical and electrical connection points. Port size and package type must match for direct board-level substitution.

Environmental Compliance: RoHS compliance and operating temperature range (-20°C ~ 105°C) are mandatory for equivalent substitution in regulated applications.

The ASDXRRX001PGAA5 is listed as a substitute part number in the original component documentation. However, this part exhibits significant parameter differences that affect substitution viability and must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Compatibility Assessment:

The ASDXRRX001PGAA5 shares common manufacturing heritage (Honeywell ASDX series), identical supply voltage specifications, matching package format (8-DIP), and equivalent accuracy (±2%). Both components feature temperature compensation and RoHS compliance.

Critical Differences Affecting Substitution:

1. Pressure Type Mismatch: The main part measures differential pressure; the substitute measures vented gauge pressure. These are fundamentally different measurement modes requiring different sensor configurations and application contexts.

2. Pressure Range Incompatibility: Operating pressure differs by a factor of 15 (15PSI vs. 1PSI). Maximum pressure ratings are similarly disparate (30PSI vs. 2PSI). This renders the substitute unsuitable for applications requiring 15PSI differential measurement capability.

3. Output Interface Incompatibility: The main part provides I2C digital output (12-bit); the substitute provides analog voltage output (0.5V ~ 4.5V). These require different signal conditioning, firmware, and hardware interface implementations.

4. Port Dimension Variance: Tube port sizes differ slightly (2.29mm vs. 2.31mm), which may affect mechanical fit depending on tubing specifications.

Product Status Consideration:

The ASDXRRX001PGAA5 maintains active product status, ensuring ongoing availability and manufacturer support. The ASDX015D44R-DO is obsolete, limiting future procurement options.

Substitution Viability:

Direct substitution of ASDXRRX001PGAA5 for ASDX015D44R-DO is not supported based on provided specifications. The parts serve different measurement applications and require incompatible interface implementations. Selection of alternative components should prioritize matching pressure type, operating pressure range, and output interface specifications.

Frequently Asked Questions (FAQ)

Q: Can ASDXRRX001PGAA5 replace ASDX015D44R-DO in existing applications?

A: No. The substitute part operates at 1PSI vented gauge pressure with analog voltage output, while the main part operates at 15PSI differential pressure with I2C digital output. These specifications are incompatible for direct substitution.

Q: What is the primary difference between these two sensors?

A: The ASDX015D44R-DO measures differential pressure (comparing two pressure inputs) at 15PSI with digital I2C output. The ASDXRRX001PGAA5 measures vented gauge pressure (comparing one input to atmosphere) at 1PSI with analog voltage output. These represent different sensor types for different applications.

Q: Are the physical packages compatible?

A: Both components use 8-DIP module packages with through-hole mounting. However, tube port sizes differ slightly (2.29mm vs. 2.31mm), and the different pressure types require different tubing configurations. Package compatibility alone does not ensure functional substitution.

Q: Why is the ASDX015D44R-DO listed as obsolete?

A: Product obsolescence reflects manufacturer discontinuation. Honeywell has ended production and support for this specific model. The ASDXRRX001PGAA5 remains in active production.

Q: What parameters must match for valid substitution?

A: Valid substitution requires matching pressure type (differential vs. gauge), operating pressure range, output interface type (I2C vs. analog), output resolution or voltage range, supply voltage compatibility, port size and style, package format, and operating temperature range.

Q: Should I consider other ASDX series components?

A: Other ASDX series components may offer closer compatibility. Evaluation should prioritize 15PSI differential pressure measurement capability with I2C digital output in an 8-DIP package format.

Q: Are there compliance or certification concerns with substitution?

A: Both components are RoHS compliant and operate within equivalent temperature ranges. Compliance status is not a limiting factor for substitution. The primary concern is functional incompatibility based on pressure type and output interface differences.