Equivalent & Substitute Parts for SDX005IND4

Part Overview

The SDX005IND4 is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications with a 0.18 PSI (1.25 kPa) operating pressure range. This component features a Wheatstone Bridge output configuration with 0 mV to 20 mV signal range at 12V supply, housed in a 6-DIP module package with male barbless tube connection (0.09" / 2.3mm).

The SDX005IND4 is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain system functionality, ensure continued availability for legacy applications, and support ongoing production or maintenance requirements where original components are no longer readily available from primary sources.

Substiute Parts

SDX005IND4

Honeywell Sensing and Productivity SolutionsIn Stock: 800SDX005IND4 Datasheet

Current PartRFQ

SSCDJJN005NGAA5

Honeywell Sensing and Productivity SolutionsIn Stock: 880SSCDJJN005NGAA5 Datasheet

SimilarRFQ

MLDX-L05D-DX01-N

Amphenol All Sensors CorporationIn Stock: 1125MLDX-L05D-DX01-N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SDX005IND4 is evaluated based on the following critical parameters that determine functional compatibility:

Pressure Measurement Capability: The operating pressure range (0.18 PSI / 1.25 kPa) and pressure type (differential) define the sensor's measurement domain. Substitute parts must support equivalent or higher pressure ranges to maintain measurement accuracy within the application's operating envelope.

Output Signal Characteristics: The output type (Wheatstone Bridge vs. Analog Voltage), output range (0 mV ~ 20 mV), and supply voltage (20V) determine signal conditioning requirements and circuit interface compatibility. Substitutes with different output types or voltage requirements may necessitate circuit redesign.

Physical Interface: Port size (0.09" / 2.3mm male tube), port style (barbless), and tube connection type establish mechanical compatibility with existing pneumatic or fluidic connections.

Electrical Interface: Package type (6-DIP), termination style (PC Pin), and through-hole mounting define PCB layout and assembly compatibility.

Environmental Specifications: Operating temperature range (-40°C ~ 85°C) and RoHS compliance status establish suitability for the intended operating environment and regulatory requirements.

Two substitute parts are identified based on manufacturer cross-reference data:

1. SSCDJJN005NGAA5 (Honeywell TruStability® SSC series) — Same manufacturer, same operating pressure, different output type and package configuration
2. MLDX-L05D-DX01-N (Amphenol All Sensors Corporation MLDX series) — Different manufacturer, higher operating pressure range, differential measurement type

Parameter Comparison

Engineering Selection Recommendations

SSCDJJN005NGAA5 Substitution Considerations:

The SSCDJJN005NGAA5 shares identical operating pressure specifications (0.18 PSI / 1.25 kPa) and manufacturer origin with the SDX005IND4. Both components operate across the same temperature range (-40°C ~ 85°C) and feature temperature compensation. However, critical differences exist:

The SSCDJJN005NGAA5 employs vented gauge pressure measurement rather than differential measurement. This distinction affects how the sensor responds to atmospheric pressure variations and may alter measurement accuracy in applications requiring true differential pressure sensing.

Output signal architecture differs significantly. The SDX005IND4 provides a Wheatstone Bridge output (0 mV ~ 20 mV at 12V supply), while the SSCDJJN005NGAA5 delivers amplified analog voltage output (0.5 V ~ 4.5 V at 4.95V ~ 5.05V supply). This requires signal conditioning circuit redesign and altered power supply specifications.

The SSCDJJN005NGAA5 package is 8-DIP with dual ports on the same side, compared to the 6-DIP single-port configuration of the SDX005IND4. PCB layout modifications are necessary. The SSCDJJN005NGAA5 demonstrates superior accuracy (±0.25% vs. ±1%), which may provide measurement quality improvements.

MLDX-L05D-DX01-N Substitution Considerations:

The MLDX-L05D-DX01-N maintains differential pressure measurement type and 20V supply voltage compatibility with the SDX005IND4. Both components operate across identical temperature ranges and feature temperature compensation. Product status is active, ensuring ongoing availability.

Operating pressure range differs substantially. The MLDX-L05D-DX01-N operates at ±5 PSI (±34.47 kPa), approximately 28 times higher than the SDX005IND4's 0.18 PSI range. This higher pressure capability may introduce reduced sensitivity or measurement resolution in low-pressure applications.

Output signal range is comparable (0 mV ~ 17 mV vs. 0 mV ~ 20 mV), supporting similar signal conditioning approaches. Accuracy is superior (±0.3% vs. ±1%).

Physical interface differences include port style (barbed vs. barbless) and package dimensions (6-DIP 0.600" vs. 6-DIP unspecified dimensions). Tube connection compatibility requires verification. Dual ports on the same side necessitate PCB layout adjustment.

The MLDX-L05D-DX01-N carries ROHS3 compliance certification, meeting current regulatory requirements.

Selection Guidance:

For applications requiring true differential pressure measurement at 0.18 PSI with minimal circuit modification, the MLDX-L05D-DX01-N is the preferred substitute, provided the higher pressure range does not compromise measurement resolution. Verify barbed port compatibility with existing tubing connections.

For applications where vented gauge measurement is functionally acceptable and signal conditioning redesign is feasible, the SSCDJJN005NGAA5 offers superior accuracy and active product status from the original manufacturer.

Frequently Asked Questions (FAQ)

Q: Can the SSCDJJN005NGAA5 directly replace the SDX005IND4 without circuit modifications?

A: No. The SSCDJJN005NGAA5 requires circuit redesign due to three critical differences: (1) output type change from Wheatstone Bridge to amplified analog voltage, (2) supply voltage reduction from 20V to 4.95V ~ 5.05V, and (3) pressure type change from differential to vented gauge. Signal conditioning and power supply circuits must be redesigned.

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

A: Differential pressure measurement compares pressure between two independent ports, measuring the pressure difference between them. Vented gauge measurement compares pressure at one port against atmospheric pressure at a vent port. In applications where atmospheric pressure variations affect measurement accuracy, differential measurement provides superior performance.

Q: Is the MLDX-L05D-DX01-N suitable for applications requiring 0.18 PSI measurement accuracy?

A: The MLDX-L05D-DX01-N operates at ±5 PSI range, approximately 28 times higher than the SDX005IND4. While the sensor can measure 0.18 PSI, measurement resolution and sensitivity may be reduced compared to a sensor optimized for this lower pressure range. Application-specific testing is necessary to confirm measurement performance meets system requirements.

Q: Are the tube port connections compatible between these three sensors?

A: Port sizes are nominally similar (0.09" / 2.3mm ~ 2.34mm range), but differences exist: SDX005IND4 and SSCDJJN005NGAA5 use barbless ports, while MLDX-L05D-DX01-N uses barbed ports. Barbless ports typically use compression fittings, while barbed ports rely on tubing friction. Existing tubing connections may require adapter fittings or replacement.

Q: What is the impact of package size differences on PCB layout?

A: The SDX005IND4 is 6-DIP single-port configuration. The SSCDJJN005NGAA5 is 8-DIP with dual ports, and the MLDX-L05D-DX01-N is 6-DIP with dual ports. Dual-port configurations require additional PCB space and modified pneumatic routing. Pin count differences necessitate PCB redesign and potential component repositioning.

Q: Which substitute part offers the best long-term availability?

A: Both SSCDJJN005NGAA5 and MLDX-L05D-DX01-N carry active product status. The SSCDJJN005NGAA5 is from the original manufacturer (Honeywell) and part of the active TruStability® SSC series. The MLDX-L05D-DX01-N is from Amphenol All Sensors Corporation, an established alternative sensor manufacturer. Both represent stable, supported product lines.

Q: Are there RoHS compliance implications for substitution?

A: The SDX005IND4 is RoHS Compliant. The MLDX-L05D-DX01-N is ROHS3 Compliant, meeting current regulatory standards. The SSCDJJN005NGAA5 RoHS status is not specified in available data. For applications subject to RoHS requirements, the MLDX-L05D-DX01-N provides documented compliance assurance.