FX8C-140P-SV6(21) Equivalent & Substitute Parts

Part Overview

The FX8C-140P-SV6(21) is a 140-position rectangular connector header manufactured by Hirose Electric Co., Ltd., designed for surface mount applications with outer shroud contacts and gold plating. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement planning. The substitute part maintains identical electrical and mechanical specifications while offering improved product status and compliance characteristics.

Substiute Parts

FX8C-140P-SV6(21)

Hirose Electric Co., Ltd.In Stock: 758FX8C-140P-SV6(21) Datasheet

Current PartRFQ

FX8C-140P-SV6(91)

Hirose Electric Co LtdIn Stock: 1059FX8C-140P-SV6(91) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The FX8C-140P-SV6(91) qualifies as a direct substitute for the FX8C-140P-SV6(21) based on strict equivalence of the following critical parameters:

• Number of positions: 140
• Pitch specification: 0.024" (0.60mm)
• Number of rows: 2
• Connector type: Header, Outer Shroud Contacts
• Mounting type: Surface Mount
• Contact finish: Gold
• Height above board: 0.427" (10.85mm)
• Mated stacking heights: 11mm, 16mm
• Board guide feature: Present
• Base product number: FX8C
• Moisture sensitivity level: 1 (Unlimited)

Both parts belong to the same FunctionMax™ FX8C series and share identical electrical and mechanical interfaces. The substitution is valid for all applications where the original part was specified.

Parameter Comparison

Engineering Selection Recommendations

The FX8C-140P-SV6(91) is the appropriate selection for new designs and procurement activities. This part maintains complete electrical and mechanical compatibility with the obsolete FX8C-140P-SV6(21) while offering the following advantages:

• Active product status ensures long-term availability and manufacturer support
• ROHS3 compliance satisfies current regulatory requirements for electronic components
• Higher inventory availability (1023 pcs vs. 725 pcs) supports production scheduling
• Tube packaging provides standard handling and storage conditions

For existing designs currently using FX8C-140P-SV6(21), direct substitution with FX8C-140P-SV6(91) requires no circuit modifications, PCB layout changes, or firmware updates. The parts are pin-compatible and functionally identical.

Frequently Asked Questions (FAQ)

Q: Are FX8C-140P-SV6(21) and FX8C-140P-SV6(91) electrically interchangeable?

A: Yes. Both parts are 140-position headers with identical pitch (0.024"), row configuration, contact finish, and electrical characteristics. They are direct electrical equivalents.

Q: What is the difference between these two part numbers?

A: The primary differences are product status (obsolete vs. active), RoHS compliance level (non-compliant vs. ROHS3 compliant), packaging format (unspecified vs. tube), and current inventory levels. The electrical and mechanical specifications are identical.

Q: Can I use FX8C-140P-SV6(91) as a drop-in replacement on existing PCBs designed for FX8C-140P-SV6(21)?

A: Yes. The parts share identical footprints, mounting type (surface mount), height above board (0.427"), and all mechanical dimensions. No PCB redesign is required.

Q: Why is FX8C-140P-SV6(21) marked as obsolete?

A: The FX8C-140P-SV6(21) has been superseded by the FX8C-140P-SV6(91) in the manufacturer's product line. The newer variant offers improved compliance and active production status.

Q: Does the RoHS compliance difference affect compatibility?

A: No. RoHS compliance is a manufacturing and environmental standard that does not affect electrical or mechanical performance. Both parts function identically in circuit applications.

Q: What packaging does FX8C-140P-SV6(91) come in?

A: FX8C-140P-SV6(91) is supplied in tube packaging, which is the standard format for surface mount connector headers.