Equivalent & Substitute Parts for 1 PSI-D-4V-PRIME-REF

Part Overview

The 1 PSI-D-4V-PRIME-REF is a differential pressure sensor manufactured by Amphenol All Sensors Corporation, designed for board mount applications requiring ±1PSI (±6.89kPa) measurement capability. This component features dual male barbless tube ports (0.19" / 4.8mm), analog voltage output (0.25V ~ 4.25V), and operates across -40°C to 125°C. The part is currently classified as obsolete, necessitating identification of functionally equivalent active alternatives to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

1 PSI-D-4V-PRIME-REF

Amphenol All Sensors CorporationIn Stock: 8131 PSI-D-4V-PRIME-REF Datasheet

Current PartRFQ

1 PSI-D-4V-PRIME

Amphenol All Sensors CorporationIn Stock: 8221 PSI-D-4V-PRIME Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1 PSI-D-4V-PRIME-REF is determined by strict equivalence across the following critical parameters:

Pressure Measurement Specification: Operating pressure range must be ±1PSI (±6.89kPa) differential to maintain sensor accuracy within the original design envelope.

Output Characteristics: Analog voltage output with 0.25V ~ 4.25V range ensures direct signal compatibility with existing signal conditioning and data acquisition circuits.

Physical Interface: Male barbless tube ports at 0.19" (4.8mm) diameter, dual configuration, establish pneumatic connection compatibility with existing tubing and manifold assemblies.

Electrical Package: 4-SIP module with PC pin termination provides identical footprint and board-level integration without redesign.

Environmental Performance: Operating temperature range of -40°C to 125°C with temperature compensation maintains functional consistency across specified thermal conditions.

Functional Features: Amplified output and temperature compensation are mandatory to preserve signal integrity and measurement stability.

The substitute part 1 PSI-D-4V-PRIME meets all these criteria while offering active product status and improved compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 1 PSI-D-4V-PRIME serves as the direct functional equivalent for the obsolete 1 PSI-D-4V-PRIME-REF. Both components share identical pressure measurement specifications, output characteristics, physical interfaces, and environmental operating ranges, enabling direct substitution at the board and system level.

Product Status Consideration: The substitute part maintains active product status with Amphenol All Sensors Corporation, ensuring continued availability, technical support, and supply chain stability for both new designs and field service applications.

Compliance Advantage: The 1 PSI-D-4V-PRIME achieves RoHS compliance, whereas the original part is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic components in regulated markets and industries.

Supply Chain Availability: Current inventory of 764 units of the substitute part provides immediate procurement capability compared to the obsolete status of the original component.

Electrical Parameter Variance: The substitute part operates within a narrower supply voltage range (4.5V ~ 5.5V) compared to the original (5.5V ~ 16V). System designs must confirm that power supply specifications fall within the 4.5V ~ 5.5V window. The substitute part also specifies ±0.5% accuracy versus ±0.25% for the original; this represents a 0.25% reduction in measurement precision that must be evaluated against application requirements.

Frequently Asked Questions (FAQ)

Q: Can the 1 PSI-D-4V-PRIME directly replace the 1 PSI-D-4V-PRIME-REF without circuit modifications?

A: Yes, for applications where the power supply operates within 4.5V ~ 5.5V. The substitute part shares identical pressure range, output voltage, port configuration, package footprint, and termination style. If the original design uses supply voltages above 5.5V, circuit redesign is required.

Q: What is the impact of the accuracy difference between ±0.25% and ±0.5%?

A: The substitute part has a 0.25% lower accuracy specification. For a ±1PSI sensor, this represents an additional ±0.0025PSI uncertainty. Applications requiring the original ±0.25% accuracy must evaluate whether this variance exceeds system tolerance requirements.

Q: Are the pneumatic interfaces identical between the two parts?

A: Yes. Both parts feature male barbless tube ports at 0.19" (4.8mm) diameter in dual configuration. Existing tubing, manifolds, and pneumatic connections are fully compatible without modification.

Q: Does the RoHS compliance of the substitute part affect electrical performance?

A: No. RoHS compliance addresses material composition and environmental impact, not electrical function. The substitute part maintains identical output characteristics and signal integrity.

Q: What supply voltage range must be confirmed before substitution?

A: The substitute part requires 4.5V ~ 5.5V supply voltage. The original part accepts 5.5V ~ 16V. Confirm that system power supplies operate within the 4.5V ~ 5.5V range. If the original design uses higher voltages, alternative components or power regulation must be implemented.

Q: Is the 4-SIP module package identical for both parts?

A: Yes. Both parts use the same 4-SIP module package with PC pin termination, ensuring identical board-level footprint and mounting compatibility.

Q: Are there any temperature performance differences?

A: No. Both parts operate across -40°C to 125°C with temperature compensation, providing equivalent thermal performance across the specified range.