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

Part Overview

The FX10B-80S/8-SV(21) is an 80-position rectangular connector receptacle from Hirose Electric's FunctionMax™ FX10 series, designed for surface mount applications with center strip 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-80S/8-SV(21)

Hirose Electric Co LtdIn Stock: 1095FX10B-80S/8-SV(21) Datasheet

Current PartRFQ

FX10B-80S/8-SV(91)

Hirose Electric Co LtdIn Stock: 1174FX10B-80S/8-SV(91) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Connector Type & Series: Receptacle, Center Strip Contacts within the FunctionMax™ FX10 series
• Electrical Configuration: 80 positions, 2 rows, 0.020" (0.50mm) pitch
• Mechanical Compatibility: Surface mount, 0.126" (3.20mm) height above board, 4mm and 5mm mated stacking heights
• Contact Specifications: Gold finish at 4.00µin (0.100µm) thickness
• Environmental Rating: MSL 1 (Unlimited moisture sensitivity level)

The substitute part FX10B-80S/8-SV(91) satisfies all these parameters identically. The primary distinction is packaging format and product status: the substitute is supplied in Tape & Reel (TR) packaging and maintains Active product status, whereas the original part is Obsolete.

Parameter Comparison

Engineering Selection Recommendations

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

• Product Status: The substitute maintains Active status, ensuring long-term availability and manufacturer support
• Compliance: The substitute achieves RoHS Compliance, whereas the original part is RoHS non-compliant, providing regulatory advantage for new designs and procurement cycles
• Electrical & Mechanical Equivalence: All connector specifications, contact configurations, and mounting parameters are identical
• Packaging Consideration: The substitute is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes and provides cost efficiency for volume production

For applications currently using FX10B-80S/8-SV(21), direct substitution with FX10B-80S/8-SV(91) is electrically and mechanically valid without design modification.

Frequently Asked Questions (FAQ)

Q: Are FX10B-80S/8-SV(21) and FX10B-80S/8-SV(91) electrically interchangeable?

A: Yes. Both parts are 80-position receptacles with identical pitch (0.020"/0.50mm), contact finish (gold at 4.00µin), and electrical ratings. They are direct electrical equivalents.

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

A: The primary differences are product status (Obsolete vs. Active), packaging format (Bulk vs. Tape & Reel), and RoHS compliance status. The electrical and mechanical specifications are identical.

Q: Can I use FX10B-80S/8-SV(91) in place of FX10B-80S/8-SV(21) without PCB redesign?

A: Yes. The substitute part has identical mounting type (Surface Mount), height above board (0.126"/3.20mm), and mated stacking heights (4mm, 5mm). No PCB layout modification is required.

Q: Why is the original part marked as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support. The substitute part FX10B-80S/8-SV(91) remains in active production and is the recommended alternative for new designs and reprocurement.

Q: Does the Tape & Reel packaging affect compatibility?

A: No. Tape & Reel is a packaging and delivery format for automated assembly. The connector itself is identical. This packaging format is standard for high-volume manufacturing and typically offers cost advantages.

Q: Is the RoHS Compliance difference significant?

A: For new designs and applications subject to RoHS regulations, the compliant substitute FX10B-80S/8-SV(91) is required. For legacy systems without RoHS requirements, both parts are functionally equivalent.