GX40-18S Equivalent & Substitute Parts

Part Overview

The GX40-18S is an 18-position rectangular plug connector manufactured by Hirose Electric Co Ltd, designed for crimp termination with 28-30 AWG wire gauges. This connector features gold-plated female socket contacts and operates as a free-hanging in-line component. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and procurement planning.

Substiute Parts

GX40-18S

Hirose Electric Co LtdIn Stock: 951GX40-18S Datasheet

Current PartRFQ

GX40-18S(30)

Hirose Electric Co LtdIn Stock: 849GX40-18S(30) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GX40-18S is determined by strict equivalence across the following critical parameters:

• Connector Type & Contact Configuration: Plug with female socket contacts
• Position Count & Pitch: 18 positions at 0.016" (0.40mm) pitch
• Row Configuration: Single row layout
• Termination Method: Crimp termination for 28-30 AWG wire
• Contact Material: Gold plating for electrical performance and corrosion resistance
• Mounting Orientation: Free hanging in-line configuration

The substitute part GX40-18S(30) maintains full electrical and mechanical compatibility with the original GX40-18S across all specified parameters. The primary distinction is packaging format and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

The GX40-18S(30) is the direct functional equivalent for the obsolete GX40-18S. Both parts share identical electrical and mechanical specifications across all critical connector parameters: 18-position configuration, 0.016" pitch, crimp termination for 28-30 AWG wire, and gold-plated female socket contacts.

The GX40-18S(30) carries Last Time Buy status, indicating limited future availability from the manufacturer. This part is RoHS Compliant, providing environmental regulatory alignment for new designs and procurement cycles. The packaging difference (tray versus bulk) does not affect functional compatibility or performance characteristics.

For applications currently using GX40-18S, direct substitution with GX40-18S(30) is electrically and mechanically valid without design modification.

Frequently Asked Questions (FAQ)

Q: Can GX40-18S(30) be used as a direct replacement for GX40-18S?

A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters: 18 positions, 0.016" pitch, crimp termination, 28-30 AWG wire gauge, and gold-plated female socket contacts. The connector type, mounting configuration, and contact finish are identical.

Q: What is the difference between GX40-18S and GX40-18S(30)?

A: The primary differences are packaging format (bulk versus tray) and product lifecycle status. GX40-18S is obsolete; GX40-18S(30) is Last Time Buy. GX40-18S(30) is RoHS Compliant, while RoHS status for GX40-18S is not specified.

Q: Does packaging format affect connector performance?

A: No. Packaging format (bulk or tray) does not affect electrical performance, mechanical fit, or functional compatibility. It impacts only storage, handling, and procurement logistics.

Q: Is GX40-18S(30) suitable for new designs?

A: GX40-18S(30) is suitable for new designs. However, its Last Time Buy status indicates limited future availability. Long-term production programs should evaluate alternative connector solutions from current product lines.

Q: What wire gauges are compatible with these connectors?

A: Both GX40-18S and GX40-18S(30) are designed for crimp termination with 28-30 AWG wire gauges. Wire gauge selection must remain within this specified range for proper contact engagement and electrical performance.

Q: Are these connectors RoHS compliant?

A: GX40-18S(30) is RoHS Compliant. RoHS compliance status for the original GX40-18S is not specified in available documentation.