SDP601 Equivalent & Substitute Parts

Part Overview

The SDP601 is a differential pressure sensor manufactured by Sensirion AG, designed for board mount applications with I2C digital output. It operates within a ±0.07PSI (±0.5kPa) differential pressure range with 16-bit resolution and temperature compensation. The device is classified as "Not For New Designs," indicating it has been superseded in the product lifecycle. Alternative equivalent or substitute parts may be required for new designs or when SDP601 inventory becomes unavailable.

Key Parameters

Parameter	Value
Manufacturer Part Number	SDP601
Manufacturer	Sensirion AG
Series	SDP600
Pressure Type	Differential
Operating Pressure Range	±0.07PSI (±0.5kPa)
Output Type	I2C
Output Resolution	16 bit
Accuracy	±3%
Supply Voltage	3V ~ 3.6V
Operating Temperature	-20°C ~ 80°C
Package / Case	3-SIP Module
Mounting Type	Through Hole
Features	Temperature Compensated
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SDP601 is determined by the following critical parameters:

Pressure Type: Differential
Operating Pressure Range: ±0.07PSI (±0.5kPa)
Output Type: I2C
Output Resolution: 16 bit
Accuracy: ±3%
Temperature Compensation: Required

Two substitute parts are identified:

SDP600-500PA (Parametric Equivalent): Matches all critical electrical and functional parameters. Identical pressure range, I2C output, 16-bit resolution, and accuracy specification. Same series (SDP600) with identical supply voltage range (3V ~ 3.6V) and operating temperature range (-20°C ~ 80°C). Package configuration is identical (3-SIP Module).

SDP800-500PA (MFR Recommended): Meets core functional requirements with identical pressure range, I2C output, 16-bit resolution, and accuracy. Extends supply voltage compatibility (3V ~ 5.5V) and operating temperature range (-20°C ~ 85°C). Differs in port configuration (includes Male 0.2" tube connection) and package type (Module vs. 3-SIP). Represents active product status.

Parameter Comparison

Parameter	SDP601	SDP600-500PA	SDP800-500PA
Manufacturer	Sensirion AG	Sensirion AG	Sensirion AG
Pressure Type	Differential	Differential	Differential
Operating Pressure	±0.07PSI (±0.5kPa)	±0.07PSI (±0.5kPa)	-0.07PSI ~ 0.07PSI (-0.5kPa ~ 0.5kPa)
Output Type	I2C	I2C	I2C
Output Resolution	16 bit	16 bit	16 bit
Accuracy	±3%	±3%	±3%
Supply Voltage	3V ~ 3.6V	3V ~ 3.6V	3V ~ 5.5V
Operating Temperature	-20°C ~ 80°C	-20°C ~ 80°C	-20°C ~ 85°C
Temperature Compensation	Yes	Yes	Yes
Product Status	Not For New Designs	Not For New Designs	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Existing Designs): SDP600-500PA provides parametric equivalence with identical electrical specifications, supply voltage requirements, and thermal operating range. Both parts share the same series designation and package configuration, ensuring mechanical and electrical compatibility in existing PCB layouts.

For New Designs: SDP800-500PA is the recommended choice due to active product status. This part maintains all critical functional parameters while offering extended supply voltage tolerance (3V ~ 5.5V) and expanded operating temperature range (-20°C ~ 85°C). The inclusion of a port connection (Male 0.2" tube) may require mechanical design consideration but provides flexibility for pneumatic integration.

Both substitute parts maintain ROHS3 compliance and identical accuracy specifications (±3%), ensuring regulatory and performance consistency with the original SDP601.

Frequently Asked Questions (FAQ)

Q: Can SDP600-500PA be used as a direct drop-in replacement for SDP601?

A: Yes. SDP600-500PA matches all critical electrical parameters: identical pressure range (±0.07PSI), I2C output, 16-bit resolution, supply voltage (3V ~ 3.6V), and operating temperature range (-20°C ~ 80°C). The 3-SIP Module package is identical, supporting direct PCB substitution.

Q: What is the primary difference between SDP600-500PA and SDP800-500PA?

A: SDP600-500PA maintains identical specifications to SDP601 with "Not For New Designs" status. SDP800-500PA is an active product with extended supply voltage range (3V ~ 5.5V), higher maximum operating temperature (85°C vs. 80°C), and includes a Male 0.2" tube port connection. The package type differs (Module vs. 3-SIP).

Q: Why is SDP601 marked "Not For New Designs"?

A: This designation indicates the part has been superseded in the manufacturer's product lifecycle. SDP800-500PA represents the current active alternative for new applications requiring equivalent differential pressure sensing functionality.

Q: Are there supply voltage compatibility concerns when substituting with SDP800-500PA?

A: No. SDP800-500PA accepts the full SDP601 supply range (3V ~ 3.6V) and extends compatibility to 5.5V. Existing 3V ~ 3.6V power supplies remain fully compatible.

Q: Does the port configuration of SDP800-500PA affect PCB compatibility?

A: Yes. SDP800-500PA includes a Male 0.2" tube connection, whereas SDP601 has no port. This requires mechanical design consideration for pneumatic routing. SDP600-500PA maintains the no-port configuration of SDP601 for applications without pneumatic connections.

Q: Are all three parts RoHS compliant?

A: Yes. SDP601, SDP600-500PA, and SDP800-500PA are all ROHS3 compliant, meeting environmental and regulatory requirements.

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