FX5-40S2A-DSA Equivalent & Substitute Parts

Part Overview

The FX5-40S2A-DSA is a 40-position rectangular connector receptacle manufactured by Hirose Electric Co Ltd. This connector features outer shroud contacts, through-hole mounting, and gold-plated contacts. The part is currently classified as obsolete, which necessitates identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

FX5-40S2A-DSA

Hirose Electric Co LtdIn Stock: 1157FX5-40S2A-DSA Datasheet

Current PartRFQ

FX5-40S2A-DSA(71)

Hirose Electric Co LtdIn Stock: 741FX5-40S2A-DSA(71) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FX5-40S2A-DSA is determined by strict equivalence across the following critical parameters:

• Connector type and shroud configuration (Receptacle, Outer Shroud Contacts)
• Position count and row configuration (40 positions, 2 rows)
• Contact pitch (0.039" / 1.00mm)
• Mounting method (Through Hole)
• Contact material and finish (Gold)
• Physical envelope (Height Above Board: 0.366" / 9.30mm)
• Moisture sensitivity rating (MSL 1)

The substitute part FX5-40S2A-DSA(71) maintains identical electrical and mechanical specifications while differing only in packaging format and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The FX5-40S2A-DSA(71) is the direct functional equivalent of the FX5-40S2A-DSA. Both parts share identical electrical and mechanical specifications, including connector configuration, contact pitch, mounting method, and physical dimensions.

The primary distinction is product status: FX5-40S2A-DSA(71) is classified as active and carries RoHS compliance certification, whereas the original part is obsolete and RoHS non-compliant. For new designs and production applications, FX5-40S2A-DSA(71) is the appropriate selection. For legacy system repairs requiring exact form-fit-function compatibility, both parts are electrically and mechanically interchangeable.

Frequently Asked Questions (FAQ)

Q: Are FX5-40S2A-DSA and FX5-40S2A-DSA(71) electrically interchangeable?

A: Yes. Both parts are 40-position receptacles with identical pitch (0.039" / 1.00mm), contact finish (gold), and mounting configuration (through-hole). They perform identical electrical functions.

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

A: The parts differ in product status, packaging format, and RoHS compliance. FX5-40S2A-DSA(71) is the active production variant supplied in tray packaging and meets RoHS requirements. FX5-40S2A-DSA is the obsolete variant.

Q: Can FX5-40S2A-DSA(71) be used as a direct replacement in existing designs?

A: Yes. The substitute part maintains identical physical envelope dimensions (0.366" height above board) and contact configuration, ensuring compatibility with existing PCB layouts and mating connectors.

Q: Does packaging format affect connector performance?

A: No. Packaging (bulk versus tray) is a supply and handling consideration only and does not affect electrical or mechanical performance.

Q: Why is RoHS compliance relevant for this substitution?

A: RoHS compliance is a regulatory requirement for many applications and markets. FX5-40S2A-DSA(71) meets RoHS standards, making it suitable for regulated environments where the non-compliant original part cannot be used.