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

Part Overview

The BARO-A-4V-REF-PRIME is an absolute pressure sensor manufactured by Amphenol All Sensors Corporation, designed for board mount applications requiring analog voltage output. This sensor measures pressure in the range of 8.7 PSI to 15.95 PSI (60 kPa to 110 kPa) with dual output channels and temperature compensation. The product is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Substiute Parts

BARO-A-4V-REF-PRIME

Amphenol All Sensors CorporationIn Stock: 952BARO-A-4V-REF-PRIME Datasheet

Current PartRFQ

BARO-A-4V-PRIME

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

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BARO-A-4V-REF-PRIME is determined by strict alignment of the following critical parameters:

Pressure Measurement Specifications:

• Operating pressure range: 8.7 PSI ~ 15.95 PSI (60 kPa ~ 110 kPa)
• Pressure type: Absolute
• Maximum pressure rating: 60 PSI (413.69 kPa)

Electrical Output Characteristics:

• Output type: Analog voltage
• Accuracy: ±2%
• Temperature compensation: Required

Physical and Mechanical Compatibility:

• Mounting type: Through hole
• Package type: 4-SIP
• Port style: Barbless, dual configuration

Environmental Operating Conditions:

• Operating temperature range: -40°C ~ 125°C

The substitute part BARO-A-4V-PRIME maintains identical pressure measurement specifications, accuracy, temperature compensation, mounting type, and operating temperature range. Variations in port size (0.08" versus 0.19"), supply voltage range, and output voltage offset are secondary parameters that do not prevent functional substitution when mechanical integration accommodates the port size difference.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The BARO-A-4V-REF-PRIME is classified as obsolete. The BARO-A-4V-PRIME is an active product from the same manufacturer and base product family (BARO-A), making it the primary substitute for ongoing procurement and system support.

Compliance and Certification: Both parts share identical ECCN (EAR99) and HTSUS (9026.20.4000) classifications. The BARO-A-4V-PRIME includes RoHS Compliance and REACH Unaffected status, providing enhanced regulatory alignment for new designs and procurement cycles.

Electrical Compatibility: The BARO-A-4V-PRIME operates within a narrower supply voltage range (4.5 V ~ 5.5 V) compared to the BARO-A-4V-REF-PRIME (5.5 V ~ 16 V). Systems operating at 5.5 V supply voltage are fully compatible. Systems requiring operation above 5.5 V require alternative solutions outside this substitute family.

Mechanical Integration: The primary difference is port size: BARO-A-4V-REF-PRIME uses 0.19" (4.83 mm) tubing, while BARO-A-4V-PRIME uses 0.08" (2.03 mm) tubing. Mechanical integration must accommodate this port size difference through appropriate tubing adapters or system redesign.

Output Voltage Offset: The BARO-A-4V-PRIME output range begins at 0.25 V (versus 0 V for the reference part). Signal conditioning circuits must account for this 0.25 V offset in analog-to-digital conversion or signal processing stages.

Frequently Asked Questions (FAQ)

Q: Can BARO-A-4V-PRIME directly replace BARO-A-4V-REF-PRIME without any modifications?

A: Functional substitution is possible with system-level considerations. The pressure measurement range, accuracy, temperature compensation, and mounting type are identical. However, the different port sizes (0.19" versus 0.08") require mechanical integration changes. The output voltage offset (0.25 V minimum versus 0 V minimum) requires signal processing adjustment. Supply voltage compatibility exists only at 5.5 V operation.

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

A: Port size determines the tubing diameter for pressure medium connection. The BARO-A-4V-REF-PRIME uses 0.19" (4.83 mm) tubing, while BARO-A-4V-PRIME uses 0.08" (2.03 mm) tubing. System integration requires either tubing adapters or redesign of the pressure inlet manifold. This is a mechanical consideration, not an electrical one.

Q: How does the output voltage offset affect system operation?

A: The BARO-A-4V-PRIME minimum output is 0.25 V instead of 0 V. In analog signal chains, this offset must be accounted for in calibration routines or signal conditioning. Microcontroller-based systems can compensate through firmware adjustment of the analog-to-digital conversion reference or offset correction.

Q: Are there supply voltage compatibility issues?

A: The BARO-A-4V-REF-PRIME accepts 5.5 V to 16 V supply. The BARO-A-4V-PRIME accepts 4.5 V to 5.5 V supply. Both parts operate at 5.5 V. Systems requiring supply voltages above 5.5 V cannot use BARO-A-4V-PRIME as a substitute.

Q: What is the difference between "Temperature Compensated" and "Amplified Output, Temperature Compensated"?

A: Both parts include temperature compensation to maintain accuracy across the -40°C to 125°C operating range. The BARO-A-4V-PRIME includes amplified output, which provides enhanced signal conditioning. This is an enhancement that does not prevent substitution.

Q: Why is BARO-A-4V-PRIME classified as active while BARO-A-4V-REF-PRIME is obsolete?

A: Product status reflects manufacturer production and support status. Active products receive ongoing manufacturing, quality assurance, and technical support. Obsolete products are no longer manufactured. For new designs and long-term system support, active products are preferred.

Q: Are both parts from the same manufacturer?

A: Yes, both BARO-A-4V-REF-PRIME and BARO-A-4V-PRIME are manufactured by Amphenol All Sensors Corporation and share the same base product number (BARO-A).