ASDX001D44R Pressure Sensor Equivalent & Substitute Parts

Part Overview

The ASDX001D44R is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications requiring analog voltage output. This component operates within a 1PSI (6.89kPa) differential pressure range with dual output spanning 0.5V to 4.5V. The product is currently classified as obsolete, necessitating identification of functionally equivalent active alternatives to maintain system continuity and ensure long-term component availability for new designs and legacy system support.

Substiute Parts

ASDX001D44R

Honeywell Sensing and Productivity SolutionsIn Stock: 1228ASDX001D44R Datasheet

Current PartRFQ

ASDXRRX001PGAA5

Honeywell Sensing and Productivity SolutionsIn Stock: 2612ASDXRRX001PGAA5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASDX001D44R is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Manufacturer Series: ASDX
• Package Type: 8-DIP Module
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Output Type: Analog Voltage
• Output Range: 0.5V ~ 4.5V
• Supply Voltage: 4.75V ~ 5.25V
• Accuracy: ±2%
• Operating Temperature Range: -20°C ~ 105°C
• Port Style: Barbless
• RoHS Compliance: Required

Pressure Type Consideration: The ASDX001D44R operates as a differential pressure sensor. Substitutes may operate under different pressure type classifications (such as vented gauge) provided the operating pressure specification (1PSI / 6.89kPa) and maximum pressure rating remain compatible with the application requirements.

Port Size Tolerance: Port sizes of 0.09" (2.29mm) and 0.09" (2.31mm) are considered equivalent within standard manufacturing tolerances for male barbless tube connections.

Parameter Comparison

Engineering Selection Recommendations

ASDXRRX001PGAA5 as Primary Substitute:

The ASDXRRX001PGAA5 qualifies as a functional substitute for the obsolete ASDX001D44R based on the following engineering criteria:

1. Package and Mounting Compatibility: Both components utilize identical 8-DIP module packaging with through-hole PC pin termination, ensuring direct PCB compatibility without layout modifications.

2. Electrical Interface Alignment: Matching supply voltage range (4.75V ~ 5.25V), output voltage range (0.5V ~ 4.5V), and accuracy specification (±2%) ensure signal conditioning circuits require no redesign.

3. Pressure Range Suitability: The substitute operates at the same nominal pressure specification (1PSI / 6.89kPa). The reduced maximum pressure rating (2PSI versus 5PSI) is acceptable for applications where overpressure protection is not a critical design requirement.

4. Pressure Type Difference: The substitute operates as a vented gauge sensor rather than differential. This distinction affects measurement principle but maintains output compatibility for applications where the pressure measurement methodology can accommodate this change.

5. Active Product Status: The ASDXRRX001PGAA5 maintains active manufacturing status with confirmed inventory availability (2580 pieces), ensuring long-term supply chain continuity.

6. Regulatory Compliance: Both components maintain RoHS compliance and equivalent environmental certifications (REACH unaffected, ECCN EAR99, HTSUS 9026.20.4000).

7. Temperature Performance: Identical operating temperature range (-20°C ~ 105°C) ensures thermal performance equivalence across specified environmental conditions.

Application-Specific Considerations:

Selection of the ASDXRRX001PGAA5 requires confirmation that the application can function with vented gauge pressure measurement rather than differential pressure measurement, and that the maximum pressure rating of 2PSI is sufficient for the intended operating environment.

Frequently Asked Questions (FAQ)

Q1: Why is the ASDX001D44R classified as obsolete?

The ASDX001D44R has reached end-of-life status within Honeywell's product portfolio. Obsolete classification indicates the manufacturer no longer produces this component. Existing inventory may be available through authorized distributors, but long-term supply cannot be guaranteed. New designs should transition to active alternatives.

Q2: What is the primary difference between the ASDX001D44R and ASDXRRX001PGAA5?

The main difference is the pressure measurement type: the ASDX001D44R measures differential pressure (pressure difference between two ports), while the ASDXRRX001PGAA5 measures vented gauge pressure (pressure relative to atmospheric reference). Both produce identical analog voltage output (0.5V ~ 4.5V) and operate at the same nominal pressure specification (1PSI).

Q3: Can the ASDXRRX001PGAA5 be directly substituted without circuit modifications?

Yes, from an electrical interface perspective. Both components share identical supply voltage requirements, output voltage range, accuracy, and termination style. Direct PCB substitution is possible without signal conditioning circuit changes. However, the application must be compatible with vented gauge pressure measurement methodology.

Q4: What is the significance of the maximum pressure rating difference?

The ASDX001D44R has a maximum pressure rating of 5PSI, while the ASDXRRX001PGAA5 is rated to 2PSI. This difference affects overpressure protection capability. If the application requires protection against pressures exceeding 2PSI, the substitute may not provide equivalent safety margins. Verify application pressure limits before substitution.

Q5: Are the port sizes compatible between these two sensors?

The port sizes are 0.09" (2.29mm) for the ASDX001D44R and 0.09" (2.31mm) for the ASDXRRX001PGAA5. This 0.02mm difference falls within standard manufacturing tolerances for male barbless tube connections and is considered compatible for practical applications.

Q6: Does the ASDXRRX001PGAA5 include amplified output like the original part?

No. The ASDX001D44R includes amplified output as a feature, while the ASDXRRX001PGAA5 provides temperature-compensated output without amplification. Both deliver the same output voltage range, but the signal conditioning approach differs. Verify that the application does not depend on specific amplification characteristics.

Q7: What is the inventory status for substitution planning?

The ASDX001D44R has 1177 pieces available as new original stock. The ASDXRRX001PGAA5 has 2580 pieces available. For new designs, the substitute offers superior long-term availability due to active product status.

Q8: Are both components RoHS compliant?

Yes. Both the ASDX001D44R and ASDXRRX001PGAA5 are RoHS compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q9: What operating temperature range do these sensors support?

Both components operate across an identical temperature range of -20°C to 105°C, ensuring thermal performance equivalence for applications requiring operation across this environmental spectrum.

Q10: Can the ASDXRRX001PGAA5 be used in applications originally designed for differential pressure measurement?

This depends on the specific application requirements. Vented gauge pressure measurement differs fundamentally from differential pressure measurement. If the application requires measuring pressure difference between two distinct sources, the vented gauge approach may not be suitable. Consult application documentation to determine measurement methodology requirements.