DUXL20D Equivalent & Substitute Parts Reference

Part Overview

The DUXL20D is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications with a 0.72 PSI (4.98 kPa) operating pressure range. The sensor outputs a Wheatstone Bridge signal of 0 mV to 30 mV at 4.5V supply voltage and operates across -25°C to 85°C. This part is classified as obsolete, making equivalent substitute components necessary for ongoing system support and new design implementations.

Substiute Parts

DUXL20D

Honeywell Sensing and Productivity SolutionsIn Stock: 1150DUXL20D Datasheet

Current PartRFQ

20 INCH-D1-BASIC

Amphenol All Sensors CorporationIn Stock: 74220 INCH-D1-BASIC Datasheet

DirectRFQ

20 INCH-D2-BASIC

Amphenol All Sensors CorporationIn Stock: 105420 INCH-D2-BASIC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DUXL20D are identified based on strict electrical and mechanical parameter alignment. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Pressure Type: Differential
• Operating Pressure: 0.72 PSI (4.98 kPa)
• Output Type: Wheatstone Bridge
• Output Range: 0 mV ~ 30 mV (4.5V)
• Accuracy: ±0.5%
• Operating Temperature: -25°C ~ 85°C
• Package Type: 4-SIP Module
• Mounting Type: Through Hole
• Termination Style: PC Pin

Allowable Variations:

• Supply Voltage: Substitute parts operate at 6V (within the 3V ~ 8V range of the original)
• Port Size: Substitute parts feature 0.08" (2.13 mm) tube diameter (minor dimensional variation from 2.03 mm)
• Port Style: Substitute parts use barbless design (functional equivalent to barbed)
• Features: Substitute parts include temperature compensation (enhanced functionality)

The substitute parts 20 INCH-D1-BASIC and 20 INCH-D2-BASIC, manufactured by Amphenol All Sensors Corporation, meet all critical electrical parameters and maintain functional compatibility with the DUXL20D in board mount applications.

Parameter Comparison

Engineering Selection Recommendations

20 INCH-D1-BASIC Selection: This substitute part is recommended for applications requiring RoHS compliance. The part maintains active product status with Amphenol All Sensors Corporation, ensuring long-term availability and supply chain stability. The 6V fixed supply voltage operates within the DUXL20D's 3V ~ 8V range. Temperature compensation features provide enhanced performance stability across the -25°C to 85°C operating window. The barbless port design functions equivalently to the barbed design in typical tubing applications.

20 INCH-D2-BASIC Selection: This substitute part is functionally identical to 20 INCH-D1-BASIC but carries RoHS non-compliant status. Selection of this part is appropriate only for applications where RoHS compliance is not a regulatory requirement. Both Amphenol parts share identical electrical specifications and mechanical compatibility with the DUXL20D.

Compliance Considerations: For new designs or systems subject to RoHS regulations, 20 INCH-D1-BASIC is the appropriate selection. For legacy system maintenance where RoHS compliance is not mandated, either substitute part provides equivalent functionality.

Frequently Asked Questions (FAQ)

Q: Can 20 INCH-D1-BASIC and 20 INCH-D2-BASIC be used interchangeably with DUXL20D?

A: Both Amphenol parts are electrically and mechanically equivalent to the DUXL20D. They share identical pressure range, output type, output range, accuracy, operating temperature, package type, and termination style. The primary difference is RoHS compliance status. Selection depends on regulatory requirements for your application.

Q: What is the significance of the port size difference (2.03 mm vs. 2.13 mm)?

A: The 0.10 mm dimensional difference between the DUXL20D (2.03 mm) and substitute parts (2.13 mm) represents a minor variation in tube diameter. Both sizes accommodate standard barbed and barbless tubing connectors used in pressure sensing applications. Tubing compatibility should be verified for your specific connector type.

Q: Why do the substitute parts specify 6V supply voltage while the DUXL20D allows 3V ~ 8V?

A: The DUXL20D specifies a wider supply voltage range (3V ~ 8V), while the Amphenol substitutes are rated for 6V operation. The 6V specification falls within the DUXL20D's acceptable range and represents the optimized operating point for the Amphenol design. Both parts produce identical 0 mV ~ 30 mV output at their respective rated supply voltages.

Q: What does "Temperature Compensated" mean on the substitute parts?

A: Temperature compensation is a design feature that maintains consistent sensor output across the operating temperature range (-25°C to 85°C). This feature enhances measurement accuracy and stability compared to non-compensated designs, providing improved performance in the substitute parts.

Q: Are the barbless ports on substitute parts compatible with barbed tubing?

A: Barbless ports are designed for push-to-connect tubing systems. If your application uses barbed tubing connectors, tubing compatibility must be verified. Barbless designs function as mechanical equivalents in standard pressure sensing applications but may require different connector types.

Q: What is the difference between RoHS Compliant and RoHS Non-Compliant status?

A: RoHS (Restriction of Hazardous Substances) compliance indicates the part meets EU directive requirements restricting lead, cadmium, mercury, and other hazardous materials. 20 INCH-D1-BASIC is RoHS compliant; 20 INCH-D2-BASIC is not. Selection depends on whether your application, market, or customer requirements mandate RoHS compliance.

Q: Can I use these substitute parts in existing DUXL20D circuit designs without modification?

A: The substitute parts maintain identical electrical output characteristics (0 mV ~ 30 mV Wheatstone Bridge output at 4.5V) and PC pin termination, allowing direct replacement in existing through-hole PCB designs. The 6V supply voltage requirement should be verified against your circuit's power supply capability, which must fall within the DUXL20D's 3V ~ 8V range.