FX10B-80P/8-SV(21) Equivalent & Substitute Parts

Part Overview

The FX10B-80P/8-SV(21) is an 80-position rectangular connector header from Hirose Electric's FunctionMax™ FX10 series, designed for surface mount applications with outer shroud contacts and gold plating. This part is classified as obsolete, which necessitates identification of active equivalent alternatives to ensure continued design support and procurement availability. The substitute part maintains identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Substiute Parts

FX10B-80P/8-SV(21)

Hirose Electric Co LtdIn Stock: 748FX10B-80P/8-SV(21) Datasheet

Current PartRFQ

FX10B-80P/8-SV(91)

Hirose Electric Co LtdIn Stock: 969FX10B-80P/8-SV(91) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FX10B-80P/8-SV(21) is determined by strict equivalence across the following critical parameters:

• Number of Positions: 80
• Pitch: 0.020" (0.50mm)
• Number of Rows: 2
• Connector Type: Header, Outer Shroud Contacts
• Mounting Type: Surface Mount
• Contact Finish: Gold
• Contact Finish Thickness: 4.00µin (0.100µm)
• Height Above Board: 0.138" (3.50mm)
• Mated Stacking Heights: 4mm
• Features: Ground Plate, Solder Retention
• Series: FunctionMax™ FX10
• Base Product Number: FX10B

The identified substitute part FX10B-80P/8-SV(91) maintains complete electrical and mechanical compatibility with the original part while offering active product status and improved compliance certifications. The difference between the two part numbers reflects packaging configuration only, with no impact on form, fit, or function.

Parameter Comparison

Engineering Selection Recommendations

The FX10B-80P/8-SV(91) is the direct equivalent substitute for the FX10B-80P/8-SV(21). Selection of the substitute part is supported by the following factors:

• Both parts share identical electrical and mechanical specifications across all critical parameters
• The substitute part carries active product status, ensuring long-term availability and manufacturing support
• The substitute part is RoHS Compliant, meeting current environmental and regulatory requirements
• The substitute part is supplied in Tape & Reel packaging, which is standard for high-volume surface mount assembly operations
• No design modifications, PCB layout changes, or assembly process adjustments are required for substitution

Frequently Asked Questions (FAQ)

Q: Are the FX10B-80P/8-SV(21) and FX10B-80P/8-SV(91) electrically identical?

A: Yes. Both parts are 80-position headers with 0.020" (0.50mm) pitch, identical contact finish specifications, and equivalent electrical performance. The difference in part numbers reflects packaging configuration only.

Q: What is the significance of the different part number suffixes (21 vs. 91)?

A: The suffix indicates packaging type. The FX10B-80P/8-SV(21) is supplied in bulk packaging, while the FX10B-80P/8-SV(91) is supplied in Tape & Reel format. Both contain identical components.

Q: Can the FX10B-80P/8-SV(91) be used as a direct replacement on existing PCBs designed for the FX10B-80P/8-SV(21)?

A: Yes. The parts are mechanically and electrically interchangeable. No PCB modifications are required.

Q: What is the RoHS compliance difference between these parts?

A: The FX10B-80P/8-SV(21) is RoHS non-compliant, while the FX10B-80P/8-SV(91) is RoHS Compliant. For applications subject to RoHS regulations, the substitute part is required.

Q: Are there any height or footprint differences between these connectors?

A: No. Both parts have identical height above board (0.138" / 3.50mm) and mated stacking heights (4mm). PCB footprints are identical.

Q: Why is the original part marked as obsolete?

A: The FX10B-80P/8-SV(21) has been superseded by the FX10B-80P/8-SV(91) in the manufacturer's product line. The substitute part offers improved compliance certifications and active manufacturing status.