SX05DD4 Equivalent & Substitute Parts Reference

Part Overview

The SX05DD4 is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications with a 5PSI (34.47kPa) operating pressure range. The device features a Wheatstone Bridge output configuration with 0 mV ~ 75 mV signal range at 5V supply voltage and is packaged in a 6-DIP module format with male barbless tube ports (0.09" / 2.28mm diameter).

The SX05DD4 carries an Obsolete product status. Locating equivalent substitute components is necessary to maintain system functionality, ensure design continuity, and support ongoing production or maintenance requirements for applications currently utilizing this sensor.

Substiute Parts

SX05DD4

Honeywell Sensing and Productivity SolutionsIn Stock: 988SX05DD4 Datasheet

Current PartRFQ

NSCDRRN005PDUNV

Honeywell Sensing and Productivity SolutionsIn Stock: 999NSCDRRN005PDUNV Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SX05DD4 is evaluated based on the following critical parameters that determine functional and mechanical compatibility:

Pressure Specifications: Operating pressure range and maximum pressure rating must support the application's pressure envelope. The SX05DD4 operates at 5PSI differential with a 20PSI maximum rating.

Output Characteristics: The Wheatstone Bridge output type and signal range (0 mV ~ 75 mV at 5V) define the electrical interface. Substitute parts must provide compatible output voltage levels and bridge configuration to interface with existing signal conditioning circuits.

Supply Voltage: The SX05DD4 requires 12V supply. Substitute parts must operate within or accommodate this voltage specification.

Port Configuration: Dual male tube ports at 0.09" (2.28mm) diameter with barbless style define the pneumatic interface. Port size and style compatibility are essential for tubing connections.

Package and Mounting: The 6-DIP through-hole module format determines PCB layout compatibility and assembly requirements.

Environmental Compliance: RoHS compliance and operating temperature range (-40°C ~ 85°C) establish regulatory and thermal operating boundaries.

The NSCDRRN005PDUNV is identified as a substitute based on equivalent pressure type (differential), compatible pressure range (±5PSI), matching Wheatstone Bridge output, overlapping supply voltage capability (1.5V ~ 12V includes 12V), compatible operating temperature range, and RoHS compliance. Differences in package format (8-DIP vs. 6-DIP), port size (0.08" vs. 0.09"), and output range (0 mV ~ 150 mV vs. 0 mV ~ 75 mV) require design verification for specific applications.

Parameter Comparison

Engineering Selection Recommendations

The NSCDRRN005PDUNV is an active product from the same manufacturer (Honeywell Sensing and Productivity Solutions) and represents a viable substitute for the obsolete SX05DD4 in applications requiring differential pressure sensing at 5PSI operating range.

Compliance Advantages: The NSCDRRN005PDUNV maintains RoHS compliance and identical MSL rating (1 / Unlimited), ensuring regulatory continuity and moisture handling compatibility with the original design.

Performance Improvements: The substitute offers superior accuracy (±0.25% vs. ±0.5%) and operates across a wider supply voltage range (1.5V ~ 12V vs. fixed 12V), providing design flexibility for power management.

Design Considerations: The NSCDRRN005PDUNV uses an 8-DIP package versus the 6-DIP format of the SX05DD4, requiring PCB layout modification. The port size difference (0.08" vs. 0.09" tube diameter) and barbed versus barbless port style necessitate tubing adapter evaluation. The higher output range (0 mV ~ 150 mV vs. 0 mV ~ 75 mV) requires signal conditioning circuit adjustment to maintain proper signal scaling and ADC input compatibility.

Active Product Status: The NSCDRRN005PDUNV is an active product with documented availability, supporting long-term supply chain reliability compared to the obsolete SX05DD4.

Frequently Asked Questions (FAQ)

Q: Can the NSCDRRN005PDUNV directly replace the SX05DD4 without circuit modifications?

A: Direct pin-for-pin replacement is not possible due to package format differences (8-DIP vs. 6-DIP). Additionally, the output voltage range differs (0 mV ~ 150 mV vs. 0 mV ~ 75 mV), requiring signal conditioning circuit adjustment. PCB layout redesign is necessary.

Q: What is the impact of the different port sizes (0.08" vs. 0.09")?

A: The port diameter difference requires tubing adapter evaluation. The NSCDRRN005PDUNV uses 0.08" (1.93mm) male barbed ports compared to the SX05DD4's 0.09" (2.28mm) male barbless ports. Tubing compatibility and connection integrity must be verified for the specific application.

Q: How does the higher output range of the NSCDRRN005PDUNV affect system performance?

A: The NSCDRRN005PDUNV provides 0 mV ~ 150 mV output versus the SX05DD4's 0 mV ~ 75 mV. This doubled output range improves signal resolution but requires signal conditioning and ADC input scaling adjustment to maintain proper measurement accuracy and prevent signal clipping.

Q: Is the NSCDRRN005PDUNV suitable for the same operating temperature range?

A: Yes. Both sensors operate across -40°C ~ 85°C, providing identical thermal operating boundaries for the application environment.

Q: What are the supply voltage implications of using the NSCDRRN005PDUNV?

A: The NSCDRRN005PDUNV operates across 1.5V ~ 12V, compared to the SX05DD4's fixed 12V requirement. This wider range provides design flexibility but does not eliminate the need for stable 12V supply if the original design specifies this voltage.

Q: Does the barbed port style of the NSCDRRN005PDUNV affect tubing installation?

A: Yes. The NSCDRRN005PDUNV uses barbed ports versus the SX05DD4's barbless design. Barbed ports provide mechanical retention for tubing but require different insertion techniques and may not be compatible with existing tubing assemblies designed for barbless ports.

Q: Are both sensors RoHS compliant?

A: Yes. Both the SX05DD4 and NSCDRRN005PDUNV are RoHS compliant with identical MSL rating (1 / Unlimited), ensuring regulatory and moisture sensitivity compatibility.