FX8C-140S-SV5(21) Equivalent & Substitute Parts

Part Overview

The FX8C-140S-SV5(21) is a 140-position rectangular connector receptacle manufactured by Hirose Electric Co Ltd, part of the FunctionMax™ FX8C series. This surface mount connector features center strip contacts with gold plating and is designed for high-density interconnect applications. The part is currently obsolete, making identification of equivalent and substitute parts essential for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

FX8C-140S-SV5(21)

Hirose Electric Co LtdIn Stock: 861FX8C-140S-SV5(21) Datasheet

Current PartRFQ

FX8C-140S-SV5(91)

Hirose Electric Co LtdIn Stock: 2470FX8C-140S-SV5(91) Datasheet

DirectRFQ

FX8C-140S-SV5(95)

Hirose Electric Co LtdIn Stock: 726FX8C-140S-SV5(95) Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the FX8C-140S-SV5(21) is determined by strict equivalence across the following critical parameters:

• Connector Type & Position Count: All substitutes maintain 140-position receptacle configuration with center strip contacts
• Electrical Interface: Identical pitch (0.024" / 0.60mm) and row configuration (2 rows) ensure mechanical and electrical compatibility
• Physical Dimensions: Matching height above board (0.352" / 8.95mm) and mated stacking height range (10mm–16mm) guarantee PCB layout compatibility
• Contact Material: Gold plating on all substitutes maintains signal integrity and corrosion resistance
• Mounting Technology: All parts are surface mount with board guide features for consistent assembly

The identified substitutes—FX8C-140S-SV5(91) and FX8C-140S-SV5(95)—are direct parametric equivalents from the same manufacturer and series, differing only in packaging configuration and product status.

Parameter Comparison

Engineering Selection Recommendations

FX8C-140S-SV5(91) is the primary substitute for new designs and ongoing production. This part maintains full parametric equivalence with the original FX8C-140S-SV5(21) while offering active product status and RoHS3 compliance. The tube packaging format supports standard manufacturing workflows. This option is recommended for applications requiring regulatory compliance and long-term supply chain stability.

FX8C-140S-SV5(95) serves as a secondary equivalent, also maintaining complete parametric compatibility and active product status with RoHS compliance. This part provides an alternative sourcing option with identical electrical and mechanical characteristics. Selection between FX8C-140S-SV5(91) and FX8C-140S-SV5(95) may be determined by packaging availability, inventory levels, or supplier preference, as both parts are functionally interchangeable.

Both substitutes eliminate the obsolescence risk associated with the FX8C-140S-SV5(21) while maintaining full compatibility with existing PCB designs and mating connectors.

Frequently Asked Questions (FAQ)

Q: Can FX8C-140S-SV5(91) or FX8C-140S-SV5(95) be used as direct replacements for FX8C-140S-SV5(21)?

A: Yes. Both parts are parametric equivalents with identical position count (140), pitch (0.024" / 0.60mm), mounting type (surface mount), contact finish (gold), and physical dimensions. No PCB redesign or connector interface modification is required.

Q: What is the difference between FX8C-140S-SV5(91) and FX8C-140S-SV5(95)?

A: The parts are electrically and mechanically identical. The primary differences are packaging format (both tube) and RoHS compliance designation (RoHS3 vs. RoHS). Both are active products with equivalent availability and performance characteristics.

Q: Why is the original FX8C-140S-SV5(21) marked as obsolete?

A: Obsolescence indicates the part is no longer in active production. The identified substitutes—FX8C-140S-SV5(91) and FX8C-140S-SV5(95)—are active equivalents that provide continued access to this connector configuration.

Q: Are there any compliance differences between the main part and substitutes?

A: Yes. The FX8C-140S-SV5(21) is RoHS non-compliant, while both FX8C-140S-SV5(91) (RoHS3) and FX8C-140S-SV5(95) (RoHS) meet current regulatory requirements. All three parts maintain REACH Unaffected status and identical ECCN/HTSUS classifications.

Q: Will the mated stacking height options remain the same with substitute parts?

A: Yes. All three parts support identical mated stacking heights: 10mm, 11mm, 12mm, 14mm, and 16mm. System integration and connector pairing compatibility are fully preserved.

Q: What packaging options are available for the substitute parts?

A: Both FX8C-140S-SV5(91) and FX8C-140S-SV5(95) are supplied in tube packaging, suitable for standard pick-and-place assembly processes.