SDX010IND4 Equivalent & Substitute Parts Reference

Part Overview

The SDX010IND4 is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications with a 0.36 PSI (2.49 kPa) differential pressure range. The sensor features a Wheatstone Bridge output of 0 mV to 25 mV at 12V supply, male 0.09" (2.3mm) tube connection, and operates across -40°C to 85°C. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs.

Substiute Parts

SDX010IND4

Honeywell Sensing and Productivity SolutionsIn Stock: 705SDX010IND4 Datasheet

Current PartRFQ

SSCDJJN010NGAA5

Honeywell Sensing and Productivity SolutionsIn Stock: 723SSCDJJN010NGAA5 Datasheet

SimilarRFQ

MLDX-L10D-DX01-N

Amphenol All Sensors CorporationIn Stock: 1126MLDX-L10D-DX01-N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SDX010IND4 are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Pressure measurement range (0.36 PSI nominal operating point)
• Output signal type and voltage compatibility
• Supply voltage requirements
• Port connection size and style (0.09" male tube)
• Operating temperature range (-40°C to 85°C)
• Through-hole mounting configuration
• DIP package format

Substitution Logic:

The SDX010IND4 operates as a differential pressure sensor with Wheatstone Bridge output. Substitute parts must accommodate the same pressure measurement range and maintain compatible electrical interfaces. Two substitute parts are identified:

1. SSCDJJN010NGAA5 - Honeywell TruStability® SSC series: Measures the same 0.36 PSI pressure range but uses vented gauge pressure type with amplified analog voltage output (0.5V ~ 4.5V). Operates on 4.75V ~ 5.25V supply. Features 8-DIP package with dual ports, same-side configuration. Accuracy improved to ±0.25%.

2. MLDX-L10D-DX01-N - Amphenol All Sensors MLDX series: Differential pressure sensor with ±10 PSI range (encompasses 0.36 PSI operation). Analog voltage output 0 mV ~ 20.8 mV. Operates on 20V supply (matching SDX010IND4). Features 6-DIP package with dual ports, same-side configuration. Accuracy ±0.3%.

Parameter Comparison

Engineering Selection Recommendations

SSCDJJN010NGAA5 Selection Criteria:

The SSCDJJN010NGAA5 is an active product from Honeywell's TruStability® SSC series, providing long-term supply continuity. It matches the SDX010IND4 operating pressure specification (0.36 PSI) and maintains the same temperature operating range. The substitute offers improved accuracy (±0.25% versus ±1%) and includes amplified output, reducing signal conditioning complexity. However, substitution requires circuit redesign: the output changes from Wheatstone Bridge (0-25 mV at 12V) to analog voltage (0.5-4.5V at 5V supply), and pressure type changes from differential to vented gauge. The 8-DIP package differs from the original 6-DIP, requiring PCB layout modification. Dual ports on the same side provide enhanced system flexibility.

MLDX-L10D-DX01-N Selection Criteria:

The MLDX-L10D-DX01-N is an active product from Amphenol All Sensors, offering differential pressure measurement matching the SDX010IND4 pressure type. The 20V supply voltage requirement aligns with the original part, minimizing power supply modifications. The ±10 PSI range encompasses the 0.36 PSI operating point with significant headroom for system margin. Output remains analog voltage (0-20.8 mV), compatible with existing signal conditioning if scaled appropriately. Accuracy improves to ±0.3%. The 6-DIP package maintains similar form factor to the original. Barbed port style differs from the barbless original, requiring tubing connection method adjustment. ROHS3 compliance ensures regulatory alignment.

Compliance Considerations:

Both substitute parts maintain the -40°C to 85°C operating temperature range required for the original application. MLDX-L10D-DX01-N provides explicit ROHS3 compliance. Both parts are classified as active products, ensuring availability and long-term support compared to the obsolete SDX010IND4.

Frequently Asked Questions (FAQ)

Q1: Can SSCDJJN010NGAA5 directly replace SDX010IND4 without circuit modifications?

No. The SSCDJJN010NGAA5 requires circuit redesign. The output signal changes from Wheatstone Bridge (0-25 mV at 12V) to amplified analog voltage (0.5-4.5V at 5V). The supply voltage requirement changes from 20V to 4.75V-5.25V. Signal conditioning and power supply circuits must be redesigned. Additionally, the pressure type changes from differential to vented gauge, affecting system calibration.

Q2: What are the key differences between differential and vented gauge pressure types?

Differential pressure sensors measure the difference between two pressure inputs (positive and negative ports). Vented gauge pressure sensors measure pressure relative to atmospheric pressure through a vent port. The SDX010IND4 is differential; SSCDJJN010NGAA5 is vented gauge. Application requirements determine which type is appropriate.

Q3: Is MLDX-L10D-DX01-N suitable for applications requiring 0.36 PSI measurement?

Yes. The MLDX-L10D-DX01-N has a ±10 PSI range, which encompasses 0.36 PSI operation. The wider range provides system margin but may reduce measurement resolution at the 0.36 PSI operating point compared to the original SDX010IND4 (0.36 PSI range).

Q4: What PCB layout changes are required when substituting these parts?

SSCDJJN010NGAA5 uses 8-DIP package versus the original 6-DIP, requiring PCB footprint redesign and potential board layout reconfiguration. MLDX-L10D-DX01-N uses 6-DIP package (0.600" spacing) versus the original 6-DIP (spacing not specified), requiring footprint verification. Both substitute parts feature dual ports on the same side, differing from the original configuration.

Q5: Are the 0.09" tube port sizes compatible across all three parts?

The port sizes are nominally 0.09" but with slight variations: SDX010IND4 (2.3mm), SSCDJJN010NGAA5 (2.34mm), MLDX-L10D-DX01-N (2.24mm). These minor differences may require tubing adapter verification. Additionally, SDX010IND4 and SSCDJJN010NGAA5 use barbless ports, while MLDX-L10D-DX01-N uses barbed ports, affecting tubing connection methods.

Q6: What is the impact of changing from ±1% to ±0.25% or ±0.3% accuracy?

Improved accuracy reduces measurement uncertainty. SSCDJJN010NGAA5 (±0.25%) and MLDX-L10D-DX01-N (±0.3%) provide tighter tolerance than the original SDX010IND4 (±1%), enhancing system precision. This may allow relaxation of external calibration requirements or improved system performance.

Q7: Can both substitute parts operate across the full -40°C to 85°C temperature range?

Yes. Both SSCDJJN010NGAA5 and MLDX-L10D-DX01-N maintain the -40°C to 85°C operating temperature range specified for the SDX010IND4, ensuring compatibility with existing thermal requirements.

Q8: What is the significance of "active" product status for the substitutes?

Active product status indicates ongoing manufacturing and supplier support. Both SSCDJJN010NGAA5 and MLDX-L10D-DX01-N are active products, ensuring long-term availability and supply chain stability, contrasting with the obsolete SDX010IND4.