FS1027 Liquid Flow Sensor Module - Equivalent & Substitute Parts

Part Overview

The FS1027 is a liquid flow sensor module manufactured by Renesas Electronics Corporation, designed for flow measurement applications with amplification capability. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The FS1027 operates within a sensing range of 0 to 10 LPM and is configured with a female port connection of 0.5" (12.7mm) diameter.

Substiute Parts

FS1027

Renesas Electronics CorporationIn Stock: 1129FS1027 Datasheet

Current PartRFQ

FS1025

Renesas Electronics CorporationIn Stock: 826FS1025 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The FS1025 is identified as a manufacturer-recommended substitute for the obsolete FS1027. Substitution eligibility is determined by the following critical parameters:

• Manufacturer Consistency: Both parts are manufactured by Renesas Electronics Corporation, ensuring design lineage and support continuity.
• Flow Sensor Type: Both components are liquid flow sensors with amplification capability.
• Voltage Input Specification: Both operate at 5V ~ 5.5V input voltage, ensuring direct electrical compatibility.
• Switch Function/Rating: Both provide logic-level output, maintaining signal interface compatibility.
• Material and Environmental Compliance: Both use plastic body construction and maintain identical REACH, ECCN, and HTSUS classifications.
• Operating Temperature Range: Both function across 5°C ~ 75°C, providing equivalent thermal performance.
• Moisture Sensitivity Level: Both are rated MSL 1 (Unlimited), indicating identical moisture handling requirements.

Variations in sensing range (0 ~ 10 LPM for FS1027 versus 0 ~ 7 LPM for FS1025) and port size (0.5" versus 0.342") must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The FS1025 is the manufacturer-recommended active substitute for the obsolete FS1027. Selection of the FS1025 is supported by:

• Product Status Alignment: The FS1025 maintains active production status, ensuring long-term availability and supply chain continuity.
• Regulatory Compliance: Both components share identical REACH, ECCN, and HTSUS classifications, eliminating compliance re-evaluation requirements.
• Electrical Interface Compatibility: Identical voltage input specifications (5V ~ 5.5V) and logic-level output ensure direct integration into existing circuit designs.
• Environmental Performance: Matching operating temperature range and MSL rating confirm equivalent performance under specified environmental conditions.

Design considerations must account for differences in sensing range and port size. Applications requiring flow measurement up to 10 LPM or utilizing 0.5" (12.7mm) port connections require evaluation of mechanical and functional impact before substitution.

Frequently Asked Questions (FAQ)

Q: Can the FS1025 directly replace the FS1027 in existing designs?

A: The FS1025 provides electrical and environmental compatibility through matching voltage specifications, logic output, and operating temperature range. Mechanical compatibility depends on port size requirements. The FS1027 uses a 0.5" (12.7mm) female port, while the FS1025 uses a 0.342" (8.7mm) female port. Adapter solutions or mechanical redesign may be necessary.

Q: What is the impact of the reduced sensing range on substitution?

A: The FS1025 sensing range is 0 ~ 7 LPM compared to the FS1027 range of 0 ~ 10 LPM. Applications requiring measurement accuracy above 7 LPM cannot use the FS1025 without functional degradation. Applications operating within 0 ~ 7 LPM are unaffected.

Q: Are there packaging or inventory considerations?

A: The FS1027 is obsolete with 1044 units in stock. The FS1025 is active production with 800 units in stock. For new designs, the FS1025 is the recommended selection. For legacy system support, remaining FS1027 inventory may be available through authorized distributors.

Q: Do both parts require identical handling and storage procedures?

A: Both components share MSL 1 (Unlimited) rating, indicating identical moisture sensitivity and storage requirements. Standard handling procedures for plastic-bodied sensor modules apply to both parts.