ST40X-18S-CV(80) Equivalent & Substitute Parts

Part Overview

The ST40X-18S-CV(80) is an 18-position rectangular plug connector manufactured by Hirose Electric Co Ltd, designed for solder termination with gold-plated contacts and shielded construction. This connector is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

The primary reason for identifying substitute parts is the obsolete product status of the ST40X-18S-CV(80). Active equivalent models ensure continued availability and supply chain reliability for applications requiring this connector type.

Substiute Parts

ST40X-18S-CV(80)

Hirose Electric Co LtdIn Stock: 835ST40X-18S-CV(80) Datasheet

Current PartRFQ

ST40X-18S-CV(30)

Hirose Electric Co LtdIn Stock: 2235ST40X-18S-CV(30) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ST40X-18S-CV(80) is determined by strict equivalence across the following critical parameters:

• Connector Type: Plug configuration
• Number of Positions: 18 positions
• Pitch: 0.020" (0.50mm) contact spacing
• Number of Rows: Single row
• Mounting Type: Free Hanging (In-Line)
• Fastening Type: Lever Lock mechanism
• Cable Termination: Solder termination method
• Features: Shielded construction
• Contact Finish: Gold plating
• Contact Finish Thickness: 8.00µin (0.203µm)
• Color: Black housing
• Base Product Number: ST40X series

The ST40X-18S-CV(30) meets all these criteria and is classified as an active product, making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The ST40X-18S-CV(30) is the direct substitute for the obsolete ST40X-18S-CV(80). Both connectors share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: the ST40X-18S-CV(30) is active and maintains full compliance with ROHS3 and REACH regulations, whereas the original part is obsolete.

Selection of the ST40X-18S-CV(30) is supported by its active product status, regulatory compliance certifications, and confirmed availability in inventory. The connector maintains the same contact configuration, termination method, and physical form factor, ensuring direct compatibility in applications originally designed for the ST40X-18S-CV(80).

Frequently Asked Questions (FAQ)

Q: What is the difference between ST40X-18S-CV(80) and ST40X-18S-CV(30)?

A: Both connectors are functionally identical 18-position rectangular plug connectors with solder termination and gold-plated contacts. The primary difference is product status: ST40X-18S-CV(80) is obsolete, while ST40X-18S-CV(30) is active. The suffix designation (80 vs. 30) indicates different contact finish thickness specifications or manufacturing batches, but the electrical and mechanical parameters are equivalent.

Q: Can ST40X-18S-CV(30) be used as a direct replacement?

A: Yes. The ST40X-18S-CV(30) is a direct functional equivalent. It maintains identical pitch, position count, row configuration, mounting type, fastening mechanism, and contact specifications. No design modifications are required for substitution.

Q: What packaging is available for the substitute part?

A: The ST40X-18S-CV(30) is supplied in Tray packaging, whereas the original part packaging is not specified. Verify packaging requirements for your procurement and assembly processes.

Q: Are there compliance differences between the two parts?

A: The ST40X-18S-CV(30) is certified as ROHS3 Compliant and REACH Unaffected. Compliance status for the obsolete ST40X-18S-CV(80) is not specified. If regulatory compliance is required for your application, the ST40X-18S-CV(30) meets current standards.

Q: Is the contact finish thickness identical?

A: Yes. Both connectors specify 8.00µin (0.203µm) gold contact finish thickness, ensuring equivalent electrical performance and contact reliability.