ASDX030D44D Pressure Sensor Equivalent & Substitute Parts

Part Overview

The ASDX030D44D is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications with a 30PSI (206.84kPa) differential pressure range and 0.5V to 4.5V analog voltage output. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs.

Substiute Parts

ASDX030D44D

Honeywell Sensing and Productivity SolutionsIn Stock: 751ASDX030D44D Datasheet

Current PartRFQ

ASDXRRX030PDAA5

Honeywell Sensing and Productivity SolutionsIn Stock: 742ASDXRRX030PDAA5 Datasheet

DirectRFQ

ASDXRRX001PGAA5

Honeywell Sensing and Productivity SolutionsIn Stock: 2612ASDXRRX001PGAA5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ASDX030D44D are identified based on strict parameter alignment within the ASDX series. The primary substitution criterion is functional equivalence across the following parameters: pressure type (differential vs. gauge), operating pressure range, output voltage characteristics, supply voltage requirements, accuracy specification, package configuration, and termination style.

Direct Equivalent Criteria:

• Pressure Type: Differential
• Operating Pressure: 30PSI range
• Output: 0.5V ~ 4.5V
• Supply Voltage: 4.75V ~ 5.25V
• Accuracy: ±2%
• Package: 8-DIP Module
• Termination: PC Pin
• Port Style: Barbless

Similar Part Criteria (Different Pressure Range):

• Pressure Type: Vented Gauge (different from differential)
• Operating Pressure: 1PSI (significantly lower range)
• Output: 0.5V ~ 4.5V
• Supply Voltage: 4.75V ~ 5.25V
• Accuracy: ±2%
• Package: 8-DIP Module
• Termination: PC Pin
• Port Style: Barbless

Parameter Comparison

Engineering Selection Recommendations

ASDXRRX030PDAA5 (Direct Equivalent - Recommended Primary Substitute)

The ASDXRRX030PDAA5 is the direct functional equivalent for the obsolete ASDX030D44D. Both components share identical pressure type (differential), operating pressure specification (30PSI), output voltage range (0.5V ~ 4.5V), supply voltage requirements (4.75V ~ 5.25V), accuracy (±2%), and package configuration (8-DIP Module through-hole). The ASDXRRX030PDAA5 maintains active product status with current manufacturing support. Port dimensions show negligible variation (2.29mm versus 2.31mm), which does not affect functional compatibility. This part is suitable for direct replacement in existing designs without circuit modification.

ASDXRRX001PGAA5 (Similar Part - Application-Dependent)

The ASDXRRX001PGAA5 shares identical output voltage, supply voltage, accuracy, package type, and termination characteristics with the main part. However, this component operates as a vented gauge pressure sensor with a 1PSI operating pressure range, compared to the 30PSI differential pressure specification of the ASDX030D44D. This part is applicable only in applications where the pressure measurement requirement is 1PSI gauge pressure rather than 30PSI differential pressure. Selection of this part requires confirmation that the application pressure range and pressure type (gauge versus differential) are compatible with system requirements.

Both substitute parts maintain RoHS compliance and unlimited moisture sensitivity rating (MSL 1), consistent with the original component specifications.

Frequently Asked Questions (FAQ)

Q: Can ASDXRRX030PDAA5 be used as a direct replacement for ASDX030D44D?

A: Yes. The ASDXRRX030PDAA5 is functionally equivalent across all critical parameters: differential pressure type, 30PSI operating pressure, 0.5V to 4.5V output, 4.75V to 5.25V supply voltage, ±2% accuracy, 8-DIP package, and PC pin termination. Port dimension variation (2.29mm to 2.31mm) is within acceptable tolerance for barbless tube connections. No circuit redesign is required.

Q: What is the key difference between ASDXRRX030PDAA5 and ASDXRRX001PGAA5?

A: The primary difference is pressure type and operating range. ASDXRRX030PDAA5 measures differential pressure at 30PSI, while ASDXRRX001PGAA5 measures vented gauge pressure at 1PSI. These are not interchangeable unless the application pressure measurement requirement changes from 30PSI differential to 1PSI gauge.

Q: Are all substitute parts RoHS compliant?

A: Yes. Both ASDXRRX030PDAA5 and ASDXRRX001PGAA5 are RoHS compliant, matching the compliance status of the ASDX030D44D.

Q: What is the difference between differential and vented gauge pressure measurement?

A: Differential pressure sensors measure the pressure difference between two ports (positive and negative). Vented gauge pressure sensors measure pressure relative to atmospheric pressure through a vent port. Application requirements determine which type is appropriate.

Q: Are there any temperature operating range differences?

A: No. All parts operate across the identical temperature range of -20°C to 105°C.

Q: What is the significance of the ±30PSI specification on ASDXRRX030PDAA5?

A: The ± notation indicates bidirectional differential pressure measurement capability (positive and negative pressure differential). This maintains functional equivalence with the 30PSI differential specification of the ASDX030D44D for applications requiring unidirectional or bidirectional differential measurement.

Q: Can I use ASDXRRX001PGAA5 if my application only requires low-pressure measurement?

A: Only if your application requires 1PSI gauge pressure measurement specifically. The ASDXRRX001PGAA5 is not suitable for 30PSI differential pressure applications. Pressure type (gauge versus differential) and operating range must match application requirements.

Q: What is the inventory availability status?

A: ASDXRRX030PDAA5 has 683 pieces in stock. ASDXRRX001PGAA5 has 2580 pieces in stock. The original ASDX030D44D has 737 pieces available but is obsolete.