Amphenol All Sensors 0.3 PSI-D-4V-PRIME-REF Equivalent & Substitute Parts

Part Overview

The Amphenol All Sensors 0.3 PSI-D-4V-PRIME-REF is a differential pressure sensor designed for board mount applications with a measurement range of ±0.3PSI (±2.07kPa). The device features amplified analog voltage output, temperature compensation, and operates across an extended temperature range of -40°C to 125°C. This part is classified as obsolete, necessitating identification of equivalent substitute components for ongoing system support and new designs.

Substiute Parts

0.3 PSI-D-4V-PRIME-REF

Amphenol All Sensors CorporationIn Stock: 8500.3 PSI-D-4V-PRIME-REF Datasheet

Current PartRFQ

0.3 PSI-D-4V-PRIME

Amphenol All Sensors CorporationIn Stock: 12290.3 PSI-D-4V-PRIME Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0.3 PSI-D-4V-PRIME-REF is determined by strict alignment of the following critical parameters:

Pressure Measurement Capability: The substitute must maintain the same differential pressure range of ±0.3PSI (±2.07kPa) to ensure functional equivalence in pressure sensing applications.

Output Characteristics: The analog voltage output range of 0.25 V ~ 4.25 V must be preserved to maintain signal compatibility with existing signal conditioning and data acquisition circuits.

Physical Interface: The port configuration (Male - 0.19" tube, dual barbless design) must match to ensure mechanical compatibility with existing pneumatic connections.

Electrical Package: The 4-SIP module form factor and PC pin termination style must remain consistent for board-level integration.

Environmental Performance: Operating temperature range of -40°C to 125°C and temperature compensation features must be maintained for thermal stability across application environments.

The substitute part 0.3 PSI-D-4V-PRIME meets these core substitution criteria while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 0.3 PSI-D-4V-PRIME serves as the direct substitute for the obsolete 0.3 PSI-D-4V-PRIME-REF. Both components are manufactured by Amphenol All Sensors Corporation and maintain functional equivalence across all critical pressure sensing parameters.

Product Status Consideration: The substitute part carries Active product status, ensuring long-term availability and manufacturing support compared to the Obsolete status of the main part.

Compliance Status: The 0.3 PSI-D-4V-PRIME is RoHS Compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use. The main part is RoHS non-compliant.

Supply Voltage Difference: The substitute operates within a narrower supply voltage range of 4.5V ~ 5.5V compared to the main part's 5.5V ~ 16V range. System designs must verify that power supply specifications align with the substitute's requirements.

Accuracy Specification: The substitute specifies ±0.5% accuracy compared to the main part's ±0.25% accuracy. Applications requiring the higher accuracy specification of the main part must evaluate whether the substitute's accuracy meets functional requirements.

Mechanical Compatibility: Port dimensions are nominally equivalent (0.19" / 4.8mm versus 4.83mm), maintaining pneumatic interface compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 0.3 PSI-D-4V-PRIME directly replace the 0.3 PSI-D-4V-PRIME-REF in existing designs?

A: Direct substitution is possible when system power supply specifications fall within the substitute's 4.5V ~ 5.5V operating range and application accuracy requirements do not exceed ±0.5%. The identical pressure range, output voltage characteristics, port configuration, and package form factor ensure mechanical and functional compatibility.

Q: What is the significance of the supply voltage range difference?

A: The main part accepts 5.5V ~ 16V while the substitute operates at 4.5V ~ 5.5V. Systems currently powered at voltages above 5.5V require power supply redesign or regulation to operate the substitute. Systems powered within the 4.5V ~ 5.5V window are compatible without modification.

Q: How does the accuracy difference between ±0.25% and ±0.5% affect system performance?

A: The substitute's ±0.5% accuracy specification is twice the main part's tolerance. For a ±0.3PSI measurement range, this represents a maximum error of ±0.0015PSI versus ±0.00075PSI. Applications requiring the tighter tolerance must evaluate whether the substitute meets functional specifications.

Q: Are the port dimensions identical between the two parts?

A: Port dimensions are nominally equivalent. The main part specifies 0.19" (4.83mm) while the substitute specifies 0.19" (4.8mm). These dimensions fall within standard tubing tolerance ranges and maintain mechanical compatibility with 0.19" male tube connections.

Q: What is the advantage of selecting the substitute part?

A: The substitute offers Active product status with long-term manufacturing availability and RoHS Compliance, meeting current regulatory requirements. The main part is Obsolete and RoHS non-compliant, limiting future sourcing options and regulatory acceptance.

Q: Are both parts from the same manufacturer?

A: Both parts are manufactured by Amphenol All Sensors Corporation. The substitute is designated as part of the AXCA series.