SDP606 Equivalent & Substitute Parts

Part Overview

The SDP606 is a differential pressure sensor manufactured by Sensirion AG, designed for board mount applications with a measurement range of ±0.07PSI (±0.5kPa). The sensor features 16-bit digital output via I2C interface, temperature compensation, and operates across -20°C to 80°C. The product is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

SDP606

Sensirion AGIn Stock: 766SDP606 Datasheet

Current PartRFQ

SDP800-500PA

Sensirion AGIn Stock: 1659SDP800-500PA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SDP606 is determined by the following critical parameters:

• Pressure Measurement Range: Operating pressure must match or exceed ±0.07PSI (±0.5kPa) differential capability
• Output Interface: I2C digital output is required for system compatibility
• Output Resolution: 16-bit resolution maintains data precision equivalence
• Measurement Accuracy: ±3% accuracy specification must be maintained
• Supply Voltage Compatibility: Substitute must operate within available system voltage rails
• Operating Temperature Range: Must support the required thermal operating window
• Temperature Compensation: Required for stable performance across temperature variations
• Regulatory Compliance: ROHS3 and REACH compliance status must be maintained

The SDP800-500PA qualifies as a direct substitute based on matching these core electrical and functional parameters while offering an active product status and enhanced availability.

Parameter Comparison

Engineering Selection Recommendations

The SDP800-500PA is the qualified substitute for the obsolete SDP606 based on functional equivalence across all critical electrical and measurement parameters. Both sensors maintain identical I2C output, 16-bit resolution, ±3% accuracy, and temperature compensation characteristics required for system operation.

The SDP800-500PA offers the following advantages:

• Active product status with ongoing manufacturer support and availability
• Extended supply voltage range (3V ~ 5.5V) providing greater design flexibility
• Expanded operating temperature range (-20°C ~ 85°C) for enhanced thermal margin
• ROHS3 and REACH compliance maintained for regulatory continuity

Design consideration: The SDP800-500PA features a male 0.2" (5.2mm) tube port with barbless connection style, whereas the SDP606 has no port. Mechanical integration requirements must be evaluated for specific applications. The SDP800-500PA's maximum pressure rating of 14.5PSI (100kPa) is lower than the SDP606's ±72.52PSI (±500kPa); applications requiring higher overpressure protection must confirm compatibility with the reduced rating.

Frequently Asked Questions (FAQ)

Q: Can the SDP800-500PA directly replace the SDP606 in existing designs?

A: The SDP800-500PA provides electrical and functional equivalence for I2C communication, measurement range, resolution, and accuracy. However, mechanical integration differs due to the SDP800-500PA's 0.2" tube port connection. PCB layout and mechanical mounting must be reassessed for compatibility.

Q: What is the primary reason for substitution?

A: The SDP606 is obsolete and no longer manufactured. The SDP800-500PA is an active product from the same manufacturer with equivalent measurement specifications and digital interface characteristics.

Q: Are there voltage supply differences that affect circuit design?

A: The SDP606 operates at 2.7V ~ 3.3V, while the SDP800-500PA operates at 3V ~ 5.5V. Both sensors function at 3.3V, a common system voltage. If the original design uses 2.7V operation, the SDP800-500PA's 3V minimum may require circuit adjustment.

Q: How do the pressure ratings compare?

A: Both sensors measure differential pressure in the ±0.07PSI (±0.5kPa) range with identical accuracy. The SDP606 has a maximum overpressure rating of ±72.52PSI (±500kPa), while the SDP800-500PA is rated to 14.5PSI (100kPa). Applications subject to high overpressure conditions must verify the SDP800-500PA's lower rating is acceptable.

Q: What is the difference in package and port configuration?

A: The SDP606 is a 4-SIP through-hole module with no port connection. The SDP800-500PA is a module with a male 0.2" (5.2mm) tube port using a barbless connection style. Applications requiring direct pressure sensing without tubing must evaluate this mechanical difference.

Q: Are both sensors compliant with regulatory requirements?

A: Both the SDP606 and SDP800-500PA are ROHS3 compliant and REACH unaffected, maintaining regulatory continuity for applications with these compliance requirements.