Cinch Connectivity Solutions 54C Terminal Lug Strip Equivalent & Substitute Parts

Part Overview

The Cinch Connectivity Solutions 54C is a 5-position terminal lug strip with single-end terminal lugs, designed for electrical connection applications requiring a compact form factor. This component features a board size of 0.375" W x 0.625" H and accommodates four active positions plus one ground position. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing maintenance, repair, and legacy system support.

Substiute Parts

54C

Cinch Connectivity SolutionsIn Stock: 125754C Datasheet

Current PartRFQ

817

Keystone ElectronicsIn Stock: 2173817 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Cinch 54C is determined by the following critical parameters:

• Terminal Configuration: 5-position terminal lug strip with single-end terminal lugs
• Position Count: 4 active positions plus 1 ground position
• Mounting Interface: 0.140" (4.66mm) mounting hole diameter
• Board Material: XPC or equivalent phenolic material
• Single Row Configuration: Single-row layout for linear connection arrangement
• Terminal Lug Type: Single-end design for direct lug termination

The Keystone Electronics 817 satisfies these substitution criteria through identical terminal configuration, position count, mounting hole diameter, and single-row layout. Both components feature XPC/XP phenolic board materials and accommodate the same electrical connection requirements.

Parameter Comparison

Engineering Selection Recommendations

The Keystone Electronics 817 serves as the primary substitute for the obsolete Cinch 54C. Selection of the 817 is supported by the following factors:

• Active Product Status: The Keystone 817 maintains active production status, ensuring availability for new applications and ongoing supply for legacy system support.
• RoHS3 Compliance: The 817 meets ROHS3 compliance requirements, addressing regulatory requirements for new designs and systems subject to RoHS directives.
• Functional Equivalence: Identical terminal configuration, position count, and mounting interface ensure direct functional substitution without circuit redesign.
• Material Compatibility: XP phenolic board material provides equivalent electrical and mechanical performance to the original XPC material.

The transition from cadmium-plated steel contacts to tin-plated brass contacts represents an improvement in corrosion resistance and environmental compliance, with no adverse impact on electrical performance for standard terminal lug applications.

Frequently Asked Questions (FAQ)

Q: Can the Keystone 817 directly replace the Cinch 54C in existing assemblies?

A: Yes. Both components feature identical 5-position terminal lug configurations, single-end terminal design, and 0.140" mounting hole diameter. Physical and electrical compatibility is maintained.

Q: What is the significance of the contact material difference between the two parts?

A: The Cinch 54C uses cadmium-plated steel contacts, while the Keystone 817 uses tin-plated brass contacts. Tin plating provides superior corrosion resistance in humid and corrosive environments. Brass offers improved electrical conductivity compared to steel. These changes represent a performance enhancement with no negative impact on standard terminal lug applications.

Q: Why is RoHS compliance important for this substitution?

A: The Cinch 54C is RoHS non-compliant due to cadmium plating, which is restricted under RoHS directives. The Keystone 817 achieves ROHS3 compliance through tin plating and material selection. For new designs and systems subject to RoHS regulations, the 817 is the appropriate selection.

Q: Are there any dimensional differences between the two parts?

A: The Keystone 817 specifies a total board length of 1.875" (47.63mm), while the Cinch 54C specifies a width of 0.375" (9.53mm). Both components share identical width (0.375"), height (approximately 0.062" to 0.625"), and mounting hole diameter (0.140"). The dimensional specifications are compatible for standard mounting applications.

Q: What is the pitch specification for these terminal lug strips?

A: The Keystone 817 specifies a pitch of 0.375" (9.53mm), which corresponds to the board width dimension. The Cinch 54C does not specify pitch in the provided data. The 0.375" pitch is standard for 5-position terminal lug strips and ensures compatibility between the two components.