SDP1000-L Equivalent & Substitute Parts

Part Overview

The SDP1000-L is a differential pressure sensor manufactured by Sensirion AG, designed for board mount applications with a measurement range of -0.003PSI to 0.072PSI (-0.02kPa to 0.5kPa). The sensor features analog voltage output (0.25V to 4V), temperature compensation, and barbed male connection ports (0.2" / 5.2mm tube, dual). However, the SDP1000-L carries a "Not For New Designs" product status, making identification of functionally equivalent alternatives essential for ongoing system support and new development initiatives.

Substiute Parts

SDP1000-L

Sensirion AGIn Stock: 1413SDP1000-L Datasheet

Current PartRFQ

SDP816-500PA

Sensirion AGIn Stock: 1473SDP816-500PA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The SDP816-500PA qualifies as a manufacturer-recommended substitute for the SDP1000-L based on the following critical parameters:

Mechanical Compatibility: Both sensors feature identical port configurations (Male - 0.2" / 5.2mm tube, dual barbed connections), ensuring direct physical compatibility in existing installations.

Functional Equivalence: Both are differential pressure sensors with analog voltage output, temperature compensation, and identical maximum pressure ratings (14.5PSI / 100kPa).

Pressure Range Overlap: The SDP816-500PA operating range (-0.07PSI ~ 0.07PSI / -0.5kPa ~ 0.5kPa) encompasses the SDP1000-L range (-0.003PSI ~ 0.072PSI / -0.02kPa ~ 0.5kPa), providing measurement capability across the original sensor's full operating envelope.

Electrical Interface: Both sensors provide analog voltage output with supply voltage compatibility within overlapping ranges, enabling direct integration into existing signal conditioning circuits.

Regulatory Compliance: Both sensors maintain ROHS3 compliance and REACH unaffected status, meeting equivalent environmental and regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

For Existing SDP1000-L Installations: The SDP816-500PA serves as a direct mechanical and functional replacement. The identical port configuration and pressure sensor type enable drop-in substitution without mechanical redesign. Supply voltage compatibility at 5V nominal operation supports existing power distribution circuits.

For New Designs: The SDP816-500PA is the appropriate selection due to its Active product status. The SDP1000-L "Not For New Designs" designation indicates manufacturer discontinuation trajectory, making the SDP816-500PA the supported path forward for ongoing development.

Accuracy Considerations: Applications requiring ±0.2% accuracy must account for the SDP816-500PA's ±3% accuracy specification. Systems with tolerance budgets accommodating ±3% accuracy will experience no functional degradation. Applications with tighter accuracy requirements may require signal conditioning or calibration adjustments.

Temperature Range Extension: The SDP816-500PA operating range (-20°C ~ 85°C) exceeds the SDP1000-L range (-10°C ~ 60°C), providing enhanced capability for extended environmental conditions without additional thermal management.

Regulatory Compliance: Both sensors maintain equivalent ROHS3 and REACH compliance status, satisfying identical environmental and regulatory requirements for component selection.

Frequently Asked Questions (FAQ)

Q: Can the SDP816-500PA directly replace the SDP1000-L in existing applications?

A: Yes. The SDP816-500PA provides mechanical compatibility through identical port configuration (Male - 0.2" barbed tube, dual), functional equivalence as a differential pressure sensor with analog voltage output, and electrical compatibility within the 5V nominal supply range. No mechanical redesign is required.

Q: What are the key differences between these sensors?

A: The primary differences are accuracy (SDP1000-L ±0.2% versus SDP816-500PA ±3%), operating temperature range (SDP1000-L -10°C ~ 60°C versus SDP816-500PA -20°C ~ 85°C), output voltage range (SDP1000-L 0.25V ~ 4V versus SDP816-500PA 0.5V ~ 4.5V), and product status (SDP1000-L Not For New Designs versus SDP816-500PA Active).

Q: Will the ±3% accuracy of the SDP816-500PA affect system performance?

A: Accuracy impact depends on application requirements. Systems designed with tolerance budgets accommodating ±3% accuracy will function without degradation. Applications requiring ±0.2% accuracy must evaluate whether the increased tolerance is acceptable or whether signal conditioning is necessary.

Q: Are the pressure measurement ranges compatible?

A: Yes. The SDP816-500PA pressure range (-0.07PSI ~ 0.07PSI) fully encompasses the SDP1000-L range (-0.003PSI ~ 0.072PSI), ensuring measurement capability across the original sensor's complete operating envelope.

Q: What supply voltage should be used for the SDP816-500PA?

A: The SDP816-500PA accepts 3V ~ 5.5V supply voltage. For compatibility with existing SDP1000-L circuits designed for 4.75V ~ 5.25V operation, 5V nominal supply is appropriate and falls within both sensors' acceptable ranges.

Q: Is the SDP816-500PA suitable for new product designs?

A: Yes. The SDP816-500PA carries Active product status, indicating manufacturer support and availability for ongoing development. The SDP1000-L "Not For New Designs" designation makes the SDP816-500PA the recommended selection for new applications.

Q: Are there any package or form factor differences?

A: No. Both sensors are supplied in Module package type with identical physical form factors, enabling direct substitution without enclosure or mounting modifications.