LG16-2000HC-D Liquid Flow Sensor: Equivalent & Substitute Parts

Part Overview

The LG16-2000HC-D is a liquid flow sensor manufactured by Sensirion AG, designed for applications requiring flow measurement in the 0–80 ml/min range. The sensor features a female 1/4"-28 (6.35mm) flat bottom UNF port connection and operates across a 4V–12V input voltage range with I2C communication protocol. This product is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

LG16-2000HC-D

Sensirion AGIn Stock: 1010LG16-2000HC-D Datasheet

Current PartRFQ

SLI-2000 LIQUID FLOW METER

Sensirion AGIn Stock: 1206SLI-2000 LIQUID FLOW METER Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LG16-2000HC-D is determined by the following critical parameters:

Mechanical Compatibility: Port size and connection type (Female, 1/4"-28 (6.35mm) Flat Bottom, UNF) must remain identical to ensure physical integration without adapter modifications.

Electrical Compatibility: Input voltage range and communication protocol must support the existing system architecture. The substitute must operate within or encompass the original voltage specification.

Functional Range: The sensing range (0–80 ml/min) defines the measurement capability. Substitute parts must accommodate the application's flow measurement requirements.

Environmental Compliance: RoHS3 compliance and REACH unaffected status ensure regulatory alignment for current manufacturing and distribution standards.

The SLI-2000 liquid flow meter from Sensirion AG shares identical mechanical port specifications and environmental compliance certifications, making it a candidate for evaluation. However, critical differences exist in sensing range and voltage input specifications that must be assessed against application requirements.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution Consideration:

The SLI-2000 is an active product from the same manufacturer with identical mechanical port specifications and environmental compliance certifications. This part is suitable for applications where the flow measurement range requirement is 0–5 ml/min or lower. The reduced voltage input range (4V–6V versus 4V–12V) requires verification that the system power supply operates within this narrower specification.

For Applications Exceeding 5 ml/min:

The SLI-2000 sensing range limitation (0–5 ml/min maximum) makes it unsuitable for applications requiring measurement of flows above 5 ml/min. Alternative Sensirion AG liquid flow sensors with higher sensing ranges and matching port specifications should be evaluated.

Compliance Assurance:

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing environments. The transition from an obsolete part to an active product status improves long-term supply chain stability and component availability.

Frequently Asked Questions (FAQ)

Q: Can the SLI-2000 directly replace the LG16-2000HC-D in all applications?

A: Physical and electrical compatibility exists only for applications requiring flow measurement up to 5 ml/min. Applications measuring flows between 5–80 ml/min require alternative components. Verify that your system power supply operates within the 4V–6V range specified for the SLI-2000.

Q: What is the primary difference between these two sensors?

A: The LG16-2000HC-D measures flows from 0–80 ml/min with a 4V–12V input range, while the SLI-2000 measures flows from 0–5 ml/min with a 4V–6V input range. Both share identical port specifications and environmental compliance.

Q: Are the port connections identical?

A: Yes. Both sensors feature a female 1/4"-28 (6.35mm) flat bottom UNF port, ensuring mechanical compatibility without adapter requirements.

Q: Does the SLI-2000 support I2C communication?

A: The SLI-2000 specifications provided do not include communication protocol details. Verify I2C compatibility with the manufacturer before implementation.

Q: What is the inventory status for these parts?

A: The LG16-2000HC-D (obsolete) has 973 units in stock. The SLI-2000 (active product) has 1,161 units in stock, providing improved long-term availability.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the LG16-2000HC-D and SLI-2000 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.