FX11LB-140S-SV Equivalent & Substitute Parts

Part Overview

The FX11LB-140S-SV is a 140-position rectangular connector receptacle manufactured by Hirose Electric Co Ltd, designed for surface mount applications with center strip contacts and gold plating. This connector is classified as obsolete, which necessitates identification of active equivalent parts to ensure continued design support and procurement availability. The substitute part maintains identical electrical and mechanical specifications while offering improved product status and inventory availability.

Substiute Parts

FX11LB-140S-SV

Hirose Electric Co LtdIn Stock: 838FX11LB-140S-SV Datasheet

Current PartRFQ

FX11LB-140S-SV(21)

Hirose Electric Co LtdIn Stock: 3654FX11LB-140S-SV(21) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The FX11LB-140S-SV(21) qualifies as a direct substitute based on the following criteria:

Electrical Compatibility:

• Identical number of positions (140)
• Identical pitch (0.020" / 0.50mm)
• Identical number of rows (2)
• Identical connector type (Receptacle, Center Strip Contacts)
• Identical contact finish and thickness (Gold, 4.00µin)

Mechanical Compatibility:

• Identical mounting type (Surface Mount)
• Identical height above board (0.065" / 1.65mm)
• Identical mated stacking heights (2mm)
• Identical features (Solder Retention)

Environmental & Regulatory Compliance:

• Identical MSL rating (1 - Unlimited)
• Identical ECCN classification (EAR99)
• Identical HTSUS code (8536.69.4040)

The primary distinction is product status: the original part is obsolete, while the substitute is active. The substitute is available in Tape & Reel packaging and includes RoHS compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The FX11LB-140S-SV(21) is the appropriate selection for new designs and procurement activities. This part maintains complete electrical and mechanical compatibility with the original FX11LB-140S-SV while offering the following advantages:

Product Status: The substitute is classified as active, ensuring long-term availability and manufacturer support. The original part's obsolete status limits future procurement options.

Regulatory Compliance: The substitute carries RoHS compliance certification, meeting current environmental and regulatory requirements for electronic components in most jurisdictions.

Packaging: The Tape & Reel packaging format of the substitute supports automated assembly processes and improves handling efficiency in production environments.

Inventory Availability: The substitute demonstrates significantly higher inventory levels (3,641 units versus 783 units), providing improved supply chain reliability.

Frequently Asked Questions (FAQ)

Q: Can FX11LB-140S-SV(21) be used as a direct replacement for FX11LB-140S-SV in existing designs?

A: Yes. The substitute part is electrically and mechanically identical across all specified parameters, including position count, pitch, contact finish, mounting type, and dimensional characteristics. No design modifications are required.

Q: What is the significance of the "(21)" designation in the part number?

A: The "(21)" suffix indicates a specific packaging configuration and manufacturing revision. In this case, it denotes Tape & Reel packaging and represents an active production variant of the base FX11LB-140S-SV design.

Q: Does the RoHS compliance of FX11LB-140S-SV(21) affect compatibility?

A: No. RoHS compliance is an environmental and regulatory attribute that does not alter electrical or mechanical performance. It represents an enhancement in regulatory alignment and does not introduce incompatibility with existing applications.

Q: Are there any differences in contact resistance or signal integrity between these parts?

A: No differences are specified in the provided parameters. Both parts feature identical gold contact finish thickness (4.00µin) and identical connector specifications, ensuring equivalent electrical performance.

Q: What packaging format should be specified for new procurement orders?

A: Specify FX11LB-140S-SV(21) with Tape & Reel (TR) packaging for automated assembly operations. This format provides improved handling, reduced component damage, and compatibility with standard pick-and-place equipment.

Q: Is the MSL rating identical between both parts?

A: Yes. Both parts carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints and no special storage or handling requirements prior to assembly.