ASDX001D44R-DO Pressure Sensor Equivalent & Substitute Parts

Part Overview

The ASDX001D44R-DO is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications with 1PSI (6.89kPa) operating pressure range and 12-bit I2C digital output. This component features temperature compensation, barbless male tube connections (0.09" / 2.29mm), and operates across -20°C to 105°C. The product is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility for ongoing system support and new designs.

Substiute Parts

ASDX001D44R-DO

Honeywell Sensing and Productivity SolutionsIn Stock: 1156ASDX001D44R-DO Datasheet

Current PartRFQ

ASDXRRX001PG7A5

Honeywell Sensing and Productivity SolutionsIn Stock: 722ASDXRRX001PG7A5 Datasheet

DirectRFQ

ASDXRRX001PGAA5

Honeywell Sensing and Productivity SolutionsIn Stock: 2612ASDXRRX001PGAA5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASDX001D44R-DO is determined by alignment across the following critical parameters:

Mandatory Compatibility Parameters:

• Manufacturer: Honeywell Sensing and Productivity Solutions (ASDX series)
• Package Type: 8-DIP Module
• Mounting Type: Through Hole
• Supply Voltage: 4.75V ~ 5.25V
• Operating Temperature: -20°C ~ 105°C
• Accuracy: ±2%
• Temperature Compensation: Required
• Port Style: Barbless, Male tube connection
• RoHS Compliance: Required

Pressure Type Consideration: The ASDX001D44R-DO operates as a differential pressure sensor. The substitute parts identified operate as vented gauge pressure sensors. While pressure type differs, both sensor categories share identical electrical interfaces (I2C or analog voltage output), identical package configurations, and identical supply voltage specifications. Substitution is valid when system design accommodates the pressure measurement type change.

Output Type Variation: Substitutes include both I2C digital output (ASDXRRX001PG7A5) and analog voltage output (ASDXRRX001PGAA5) options. Selection depends on system signal processing architecture.

Parameter Comparison

Engineering Selection Recommendations

ASDXRRX001PG7A5 Selection Criteria: This substitute maintains I2C digital output compatibility with the original ASDX001D44R-DO. Active product status ensures ongoing availability and manufacturing support. Identical 12-bit resolution, supply voltage range, and operating temperature specifications enable direct firmware integration. Selection is appropriate when system architecture requires I2C protocol and can accommodate vented gauge pressure measurement type. Port diameter tolerance (2.31mm vs. 2.29mm) represents negligible mechanical variance for barbless tube connections.

ASDXRRX001PGAA5 Selection Criteria: This substitute provides analog voltage output (0.5V ~ 4.5V) as an alternative to I2C digital communication. Active product status and RoHS compliance maintain regulatory alignment. Selection is appropriate for systems utilizing analog signal conditioning or when I2C interface is not required. Identical accuracy (±2%), supply voltage, and temperature compensation enable functional equivalence in analog measurement architectures.

Pressure Type Transition: Both substitutes operate as vented gauge sensors versus the original differential measurement type. This transition is valid when system design accommodates atmospheric reference pressure measurement. Maximum pressure rating reduction (5PSI to 2PSI) requires verification that application operating envelope remains within 2PSI threshold.

Compliance and Availability: Both substitute parts maintain RoHS compliance, MSL-1 moisture sensitivity rating, and ECCN EAR99 classification. Active product status ensures supply chain continuity and technical support availability compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can ASDXRRX001PG7A5 directly replace ASDX001D44R-DO in existing designs?

A: Electrical and mechanical compatibility is established through identical package type (8-DIP Module), supply voltage (4.75V ~ 5.25V), I2C output protocol, 12-bit resolution, and operating temperature range (-20°C ~ 105°C). Port diameter tolerance (2.31mm vs. 2.29mm) is within acceptable mechanical variance for barbless tube connections. Substitution requires verification that vented gauge pressure measurement type satisfies application requirements, as the original part measures differential pressure.

Q: What is the primary difference between ASDXRRX001PG7A5 and ASDXRRX001PGAA5?

A: Output interface differs. ASDXRRX001PG7A5 provides I2C digital output with 12-bit resolution, maintaining protocol compatibility with the original ASDX001D44R-DO. ASDXRRX001PGAA5 provides analog voltage output (0.5V ~ 4.5V), requiring analog-to-digital conversion in the host system. Both maintain identical accuracy (±2%), supply voltage, temperature compensation, and operating temperature specifications.

Q: Are there pressure rating limitations when substituting?

A: Yes. The original ASDX001D44R-DO supports maximum pressure of 5PSI (34.47kPa). Both substitutes support maximum pressure of 2PSI (13.79kPa). Substitution is valid only when application operating pressure remains within the 2PSI maximum threshold. Applications requiring pressure measurement above 2PSI cannot use these substitutes.

Q: Do the substitute parts require firmware modifications?

A: ASDXRRX001PG7A5 maintains I2C protocol compatibility, requiring no firmware protocol changes. Pressure type transition from differential to vented gauge may require calibration offset adjustments depending on application measurement requirements. ASDXRRX001PGAA5 requires analog signal processing implementation if the original system utilized I2C digital input.

Q: What is the significance of port diameter difference (2.29mm vs. 2.31mm)?

A: Both parts feature barbless male tube connections with negligible diameter variance (0.02mm). This tolerance is within standard tubing connection specifications and does not affect mechanical compatibility or sealing performance for standard pneumatic tubing applications.

Q: Are both substitute parts available in equivalent inventory quantities?

A: ASDXRRX001PG7A5 maintains 707 units in stock. ASDXRRX001PGAA5 maintains 2580 units in stock. Both represent active products with established supply chain availability, contrasting with the obsolete original part (1110 units remaining stock).