SCX01DN Equivalent & Substitute Parts Reference

Part Overview

The SCX01DN is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications requiring precise pressure measurement in the 1PSI (6.89kPa) range. This 6-SIP module sensor outputs a Wheatstone Bridge signal of 0 mV to 18 mV at 12V supply, with ±1% accuracy and temperature compensation across the -40°C to 85°C operating range. The part is currently active in production with 1055 units in stock and carries RoHS Compliant certification with MSL Level 1 rating.

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits selection from qualified alternatives meeting the same functional and electrical specifications.

Substiute Parts

SCX01DN

Honeywell Sensing and Productivity SolutionsIn Stock: 1085SCX01DN Datasheet

Current PartRFQ

1 PSI-D-CGRADE-MV

Amphenol All Sensors CorporationIn Stock: 9851 PSI-D-CGRADE-MV Datasheet

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1 PSI-D-HGRADE-MV

Amphenol All Sensors CorporationIn Stock: 12901 PSI-D-HGRADE-MV Datasheet

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30 INCH-D-MV

Amphenol All Sensors CorporationIn Stock: 80030 INCH-D-MV Datasheet

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PHPSU-4502-001P-D

Angst+Pfister Sensors and Power AGIn Stock: 955PHPSU-4502-001P-D Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCX01DN are qualified based on the following critical parameters that must align with the main part specification:

Primary Matching Criteria:

• Pressure Type: Differential
• Operating Pressure: 1PSI (6.89kPa) nominal
• Output Type: Wheatstone Bridge
• Output Range: 0 mV ~ 18 mV at 12V supply
• Accuracy: ±1% or better
• Port Size: Male - 0.19" (4.8mm) Tube, Dual
• Termination Style: PC Pin
• Package / Case: 6-SIP Module
• Mounting Type: Through Hole
• Temperature Compensation: Required

Allowable Parameter Variations:

• Voltage Supply: 12V to 20V range acceptable (SCX01DN operates at 20V; substitutes may operate at 16V or 12V-20V range)
• Port Style: Barbed or Barbless acceptable (mechanical connection variation)
• Maximum Pressure: May exceed 1PSI rating (higher overpressure protection acceptable)
• Operating Temperature: May be narrower than -40°C to 85°C (substitutes at -25°C to 85°C acceptable)
• Accuracy: ±0.5% or ±0.25% acceptable (better than ±1% requirement)
• RoHS Status: RoHS Compliant or ROHS3 Compliant acceptable

Non-Substitutable Parameters:

• Pressure Type must remain Differential
• Output Type must remain Wheatstone Bridge
• 6-SIP Module package is mandatory
• PC Pin termination is mandatory
• Through Hole mounting is mandatory

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - 1 PSI-D-HGRADE-MV (Amphenol All Sensors Corporation):

This part qualifies as the primary substitute for SCX01DN based on complete functional equivalence. Both parts share identical operating pressure (1PSI / 6.89kPa), output range (0 mV ~ 18 mV at 12V), port configuration (Male - 0.19" Tube, Dual), termination style (PC Pin), and 6-SIP Module package. The 1 PSI-D-HGRADE-MV offers superior accuracy at ±0.5% compared to the SCX01DN's ±1%, with ROHS3 Compliant certification and MSL Level 1 rating. Operating temperature range is -25°C to 85°C, which covers the upper portion of the SCX01DN's -40°C to 85°C range. Supply voltage operates at 16V versus the SCX01DN's 20V, requiring verification of circuit compatibility. Inventory availability is 1274 units.

Secondary Substitute - PHPSU-4502-001P-D (Angst+Pfister Sensors and Power AG):

This part provides functional equivalence with the advantage of flexible supply voltage operation (12V ~ 20V), directly accommodating the SCX01DN's 20V requirement. Operating pressure, output range, port size, and package specifications are identical. Accuracy is ±0.5%, exceeding the ±1% requirement. Port style is Barbed, matching the SCX01DN. Maximum pressure rating is 10PSI (68.95kPa), providing adequate overpressure protection. Operating temperature range is -25°C to 85°C. Inventory availability is 928 units. RoHS and MSL status are not specified in available documentation.

Tertiary Substitute - 1 PSI-D-CGRADE-MV (Amphenol All Sensors Corporation):

This part meets core functional requirements with identical operating pressure, output range, port configuration, and package specification. Accuracy is ±1%, matching the SCX01DN. Supply voltage is 16V. Maximum pressure is 5PSI (34.47kPa), which is lower than the SCX01DN's 20PSI rating but acceptable for applications not requiring extended overpressure margin. ROHS3 Compliant with MSL Level 1 rating. Operating temperature is -25°C to 85°C. Inventory availability is 970 units. Port style is Barbless, representing a mechanical variation from the barbed configuration.

Limited Substitute - 30 INCH-D-MV (Amphenol All Sensors Corporation):

This part exhibits deviation from the primary specification in operating pressure (1.08PSI / 7.48kPa versus 1PSI / 6.89kPa) and output range (0 mV ~ 20 mV versus 0 mV ~ 18 mV). These variations result in different full-scale output characteristics and may require circuit recalibration. Accuracy is superior at ±0.25%. Port size is 0.19" (4.83mm), representing a minor dimensional variation from the 4.8mm specification. This part is suitable only for applications where the 1.08PSI pressure range and 20 mV output span are acceptable. Inventory availability is 716 units.

Frequently Asked Questions (FAQ)

Q: Can the 1 PSI-D-HGRADE-MV directly replace the SCX01DN without circuit modifications?

A: The 1 PSI-D-HGRADE-MV is functionally equivalent in pressure range, output type, and signal characteristics. However, the supply voltage is 16V versus the SCX01DN's 20V. Circuit compatibility depends on whether the application power supply can accommodate 16V operation. The Wheatstone Bridge output will scale proportionally to the supply voltage, so signal conditioning circuits must be verified for correct gain and offset at 16V supply.

Q: What is the difference between Barbed and Barbless port styles?

A: Port style refers to the mechanical connection method for tubing. Barbed ports feature inward-facing barbs that grip tubing from the inside, providing mechanical retention through friction. Barbless ports require external tubing clamps or fittings for secure connection. Both styles are functionally equivalent for pressure measurement; selection depends on the tubing connection method specified in the application design.

Q: Why does the 30 INCH-D-MV have a different output range (0 mV ~ 20 mV) compared to the SCX01DN (0 mV ~ 18 mV)?

A: The 30 INCH-D-MV is rated for 1.08PSI operating pressure versus the SCX01DN's 1PSI. The output range scales with the pressure range; the higher pressure rating produces a proportionally higher full-scale output voltage. This part is not a direct substitute unless the application can accommodate the different output span and requires recalibration of signal processing circuits.

Q: Are all substitute parts RoHS Compliant?

A: The SCX01DN is RoHS Compliant. The Amphenol parts (1 PSI-D-CGRADE-MV, 1 PSI-D-HGRADE-MV, and 30 INCH-D-MV) are ROHS3 Compliant, which is an updated RoHS standard and is acceptable. The PHPSU-4502-001P-D RoHS status is not specified in available documentation and should be verified with the manufacturer before selection for RoHS-regulated applications.

Q: What is the significance of MSL Level 1 rating?

A: MSL (Moisture Sensitivity Level) Level 1 indicates unlimited shelf life with no special moisture control requirements during storage or handling. All listed parts carry MSL Level 1 rating (or unspecified for PHPSU-4502-001P-D), meaning they do not require dry-pack storage or baking procedures prior to assembly.

Q: Can the PHPSU-4502-001P-D operate at the SCX01DN's 20V supply voltage?

A: Yes. The PHPSU-4502-001P-D is rated for 12V ~ 20V supply voltage range, which directly encompasses the SCX01DN's 20V requirement. This part offers the advantage of flexible voltage operation without circuit modification.

Q: What is the impact of the narrower operating temperature range (-25°C to 85°C) in substitute parts compared to the SCX01DN (-40°C to 85°C)?

A: The SCX01DN operates across a wider temperature range, including low-temperature operation down to -40°C. All substitute parts are limited to -25°C minimum. If the application requires operation below -25°C, the SCX01DN is the only qualified option. For applications operating within -25°C to 85°C, substitute parts are acceptable.

Q: How do accuracy differences (±1%, ±0.5%, ±0.25%) affect part selection?

A: Accuracy specification defines the maximum error as a percentage of full-scale output. The SCX01DN specifies ±1% accuracy. Substitute parts with ±0.5% or ±0.25% accuracy provide tighter error bounds and are acceptable replacements. Superior accuracy does not require circuit changes; it simply provides better measurement precision. Selection should be based on application accuracy requirements.

Q: Is the 4.83mm port size of the 30 INCH-D-MV compatible with tubing designed for 4.8mm ports?

A: The 4.83mm and 4.8mm port sizes are nominally equivalent with a 0.03mm difference. Tubing compatibility depends on the specific tubing inner diameter and connection method. Barbed connections may accommodate minor dimensional variations; however, verification with tubing specifications is recommended before final selection.