BARO-A-4V-PRIME-REF Pressure Sensor Equivalent & Substitute Parts

Part Overview

The BARO-A-4V-PRIME-REF is an absolute pressure sensor manufactured by Amphenol All Sensors Corporation, designed for board mount applications requiring analog voltage output in the 8.7PSI to 15.95PSI (60kPa to 110kPa) operating range. This component features a 0.19" (4.83mm) male barbless tube port with dual output configuration and operates across -40°C to 125°C.

The BARO-A-4V-PRIME-REF is classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing system maintenance, design updates, or production continuity where original inventory is depleted or unavailable.

Substiute Parts

BARO-A-4V-PRIME-REF

Amphenol All Sensors CorporationIn Stock: 937BARO-A-4V-PRIME-REF Datasheet

Current PartRFQ

BARO-A-4V-PRIME

Amphenol All Sensors CorporationIn Stock: 941BARO-A-4V-PRIME Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BARO-A-4V-PRIME-REF is determined by the following critical parameters:

Pressure Specifications: Operating pressure range must match 8.7PSI ~ 15.95PSI (60kPa ~ 110kPa) absolute pressure type.

Output Characteristics: Analog voltage output with compatible voltage range. The original part outputs 0 V ~ 4.25 V; substitute parts must support this range or a compatible subset.

Electrical Supply: Supply voltage compatibility. The original part requires 5.5V ~ 16V; substitutes must operate within overlapping or equivalent supply voltage windows.

Port Configuration: Port size, style (barbless), and dual tube configuration must be compatible with the 0.19" (4.83mm) male connection.

Environmental Performance: Operating temperature range -40°C ~ 125°C and accuracy ±2% establish baseline environmental and precision requirements.

Package and Mounting: Through-hole mounting in 4-SIP package configuration.

The BARO-A-4V-PRIME (active product status) is identified as a manufacturer-recommended substitute. While it shares the same base product number (BARO-A), pressure range, accuracy, temperature range, and mounting type, it differs in port size (0.08" vs. 0.19"), output voltage range (0.25 V ~ 4.25 V vs. 0 V ~ 4.25 V), supply voltage (4.5V ~ 5.5V vs. 5.5V ~ 16V), and includes amplified output features.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The BARO-A-4V-PRIME-REF is obsolete, while the BARO-A-4V-PRIME is active. Active product status ensures ongoing manufacturer support, availability, and compliance with current regulatory standards.

Compliance and Certifications: The BARO-A-4V-PRIME substitute carries RoHS Compliant and REACH Unaffected designations, meeting modern environmental and regulatory requirements. The original part does not specify these certifications.

Functional Equivalence: Both parts share identical pressure operating ranges (8.7PSI ~ 15.95PSI), accuracy (±2%), temperature operating range (-40°C ~ 125°C), and maximum pressure rating (60PSI). Both employ temperature compensation and barbless dual tube port configurations.

Mechanical Interface Differences: The substitute part features a smaller port size (0.08" vs. 0.19"). This difference requires mechanical interface verification in the target application. Tubing or adapter compatibility must be confirmed before selection.

Electrical Interface Differences: The substitute part operates on a narrower supply voltage range (4.5V ~ 5.5V vs. 5.5V ~ 16V) and outputs a minimum voltage of 0.25 V rather than 0 V. Applications requiring 0 V minimum output or supply voltages above 5.5V must account for these differences. The substitute includes amplified output features not present in the original.

Selection Path: For applications where the 0.08" port size is compatible with existing tubing infrastructure and supply voltage is constrained to 4.5V ~ 5.5V, the BARO-A-4V-PRIME provides an active, compliant alternative. For applications requiring the original 0.19" port size or extended supply voltage range, alternative sources or custom solutions must be evaluated.

Frequently Asked Questions (FAQ)

Q: Can the BARO-A-4V-PRIME directly replace the BARO-A-4V-PRIME-REF?

A: Functional substitution is possible for pressure measurement applications within the 8.7PSI ~ 15.95PSI range with ±2% accuracy requirements. However, three critical differences must be addressed: (1) port size reduction from 0.19" to 0.08" requires tubing compatibility verification, (2) supply voltage range narrowing from 5.5V ~ 16V to 4.5V ~ 5.5V requires power supply confirmation, and (3) minimum output voltage shift from 0 V to 0.25 V requires signal processing verification. Direct mechanical and electrical substitution is not guaranteed without application-specific validation.

Q: What is the significance of the port size difference?

A: The original BARO-A-4V-PRIME-REF uses a 0.19" (4.83mm) male barbless tube port, while the substitute BARO-A-4V-PRIME uses a 0.08" (2.03mm) male barbless tube port. This represents a significant reduction in port diameter. Existing tubing connections, adapters, and manifold interfaces designed for 0.19" ports are not compatible with 0.08" ports. Mechanical interface redesign or adapter solutions are required for substitution.

Q: How do the output voltage ranges differ?

A: The original part outputs 0 V ~ 4.25 V across the 8.7PSI ~ 15.95PSI pressure range. The substitute outputs 0.25 V ~ 4.25 V across the same pressure range. This 0.25 V offset means the substitute cannot signal zero pressure as 0 V. Applications using 0 V as a reference point or requiring full 0 V to 4.25 V signal swing must account for this difference in signal conditioning or calibration logic.

Q: What does "amplified output" mean on the substitute part?

A: The BARO-A-4V-PRIME includes amplified output circuitry, which is not present in the original BARO-A-4V-PRIME-REF. Amplified output typically provides improved signal-to-noise ratio and reduced output impedance. This feature may affect signal conditioning requirements in the receiving circuit.

Q: Are both parts temperature compensated?

A: Yes. Both the BARO-A-4V-PRIME-REF and BARO-A-4V-PRIME include temperature compensation features. Both operate across -40°C ~ 125°C with ±2% accuracy. Temperature compensation ensures stable pressure measurement across the full operating temperature range.

Q: What is the difference between 4-SIP and 4-SIP Module packaging?

A: Both parts use 4-SIP (Single In-line Package) through-hole mounting. The substitute is designated as "4-SIP Module," indicating it may include integrated signal conditioning or amplification circuitry within the package. The original 4-SIP designation suggests a simpler package configuration. Both are through-hole mounted and compatible with standard PCB assembly processes.

Q: Why is the BARO-A-4V-PRIME listed as RoHS Compliant while the original is not specified?

A: The BARO-A-4V-PRIME-REF is an obsolete product and may predate current RoHS compliance requirements or documentation standards. The BARO-A-4V-PRIME is an active product meeting current RoHS Compliant and REACH Unaffected standards. For applications subject to RoHS or REACH regulations, the substitute provides documented compliance.

Q: Can I use the BARO-A-4V-PRIME in a 12V supply application?

A: No. The BARO-A-4V-PRIME operates on 4.5V ~ 5.5V supply voltage. A 12V supply exceeds the maximum rating and will damage the component. The original BARO-A-4V-PRIME-REF supports 5.5V ~ 16V, making it suitable for 12V applications. For 12V supply requirements, the original part or alternative components rated for extended supply voltage ranges must be used.

Q: What inventory status should I consider?

A: The BARO-A-4V-PRIME-REF (obsolete) has 880 pieces in stock. The BARO-A-4V-PRIME (active) has 835 pieces in stock. While both are currently available, the obsolete part's inventory is finite and will not be replenished. The active substitute ensures long-term availability for future production or maintenance needs.