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

Part Overview

The FX8C-140P-SV(21) is a 140-position rectangular connector header manufactured by Hirose Electric Co Ltd, part of the FunctionMax™ FX8C series. This surface mount connector features outer shroud contacts with gold plating and is designed for high-density interconnect applications requiring board guide support.

The FX8C-140P-SV(21) carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this connector.

Substiute Parts

FX8C-140P-SV(21)

Hirose Electric Co LtdIn Stock: 773FX8C-140P-SV(21) Datasheet

Current PartRFQ

FX8C-140P-SV(91)

Hirose Electric Co., Ltd.In Stock: 1403FX8C-140P-SV(91) Datasheet

DirectRFQ

FX8C-140P-SV(71)

Hirose Electric Co LtdIn Stock: 1227FX8C-140P-SV(71) Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FX8C-140P-SV(21) are determined by strict equivalence across the following critical parameters:

• Number of Positions: 140
• Pitch: 0.024" (0.60mm)
• Number of Rows: 2
• Connector Type: Header, Outer Shroud Contacts
• Mounting Type: Surface Mount
• Contact Finish: Gold
• Height Above Board: 0.175" (4.45mm)
• Mated Stacking Heights: 5mm, 10mm
• Features: Board Guide
• Series: FunctionMax™ FX8C
• Base Product Number: FX8C
• Moisture Sensitivity Level: 1 (Unlimited)
• ECCN: EAR99
• HTSUS: 8536.69.4040

The substitute parts identified—FX8C-140P-SV(71) and FX8C-140P-SV(91)—maintain identical electrical and mechanical specifications. Differences exist only in product status, RoHS compliance, and packaging configuration, which do not affect functional interchangeability in applications where the connector's core specifications are the design requirement.

Parameter Comparison

Engineering Selection Recommendations

Both FX8C-140P-SV(71) and FX8C-140P-SV(91) are functionally equivalent to the FX8C-140P-SV(21) based on electrical and mechanical specifications. Selection between these alternatives should be based on the following factors:

Product Status: The FX8C-140P-SV(21) is obsolete. Both substitute parts carry active product status, ensuring long-term availability and manufacturer support.

Compliance Requirements: The FX8C-140P-SV(21) is RoHS non-compliant. If RoHS compliance is required for new designs or regulatory adherence, FX8C-140P-SV(71) (RoHS Compliant) or FX8C-140P-SV(91) (ROHS3 Compliant) are appropriate selections. For applications where RoHS compliance is not mandated, either substitute remains functionally equivalent.

Supply Chain Considerations: FX8C-140P-SV(91) maintains higher inventory availability (1326 pcs) compared to FX8C-140P-SV(71) (1159 pcs), supporting consistent procurement for production environments.

Packaging: Both substitutes are supplied in tube packaging, standardizing handling and storage procedures.

Frequently Asked Questions (FAQ)

Q: Are FX8C-140P-SV(71) and FX8C-140P-SV(91) electrically and mechanically interchangeable with FX8C-140P-SV(21)?

A: Yes. All three part numbers maintain identical specifications for number of positions (140), pitch (0.024"/0.60mm), row configuration (2), connector type (header with outer shroud contacts), mounting method (surface mount), contact finish (gold), and physical dimensions. They are direct functional equivalents.

Q: What is the significance of the suffix designations (21), (71), and (91)?

A: The suffix designations indicate different product variants within the FX8C-140P-SV series. These suffixes typically correspond to manufacturing revisions, compliance certifications, or packaging configurations. The core connector specifications remain identical across all three variants.

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

A: Obsolete status indicates that the manufacturer has discontinued active production and support for this specific part number variant. Active alternatives (71 and 91) are available to support ongoing requirements.

Q: Does RoHS compliance affect connector performance or compatibility?

A: RoHS compliance relates to material composition and manufacturing processes, not electrical or mechanical performance. The FX8C-140P-SV(21) (non-compliant), FX8C-140P-SV(71) (RoHS Compliant), and FX8C-140P-SV(91) (ROHS3 Compliant) perform identically in circuit applications. Selection should be based on regulatory requirements applicable to the end application.

Q: Can I use FX8C-140P-SV(91) as a direct replacement for FX8C-140P-SV(21) in existing designs?

A: Yes. FX8C-140P-SV(91) is a direct functional replacement. No design modifications are required. The connector maintains identical pinout, electrical characteristics, mechanical dimensions, and mounting interface.

Q: What is the difference between tube and other packaging options?

A: Both substitute parts are supplied in tube packaging, which provides organized component storage and handling for automated assembly processes. This standardizes procurement and production workflows compared to alternative packaging methods.

Q: Are there any environmental or storage differences between these part numbers?

A: All three parts maintain identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. Storage and handling requirements are equivalent across all variants.