Cinch Connectivity Solutions 56A Terminal Lug Strip Equivalent & Substitute Parts

Part Overview

The Cinch Connectivity Solutions 56A is an 8-position terminal lug strip with 6 standard positions plus 2 ground positions, featuring a 2.625" (66.68mm) pitch and single-end terminal lugs. This component is classified as obsolete, indicating that direct procurement from the original manufacturer may be limited or unavailable. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure uninterrupted supply chain operations for applications requiring this terminal lug strip configuration.

Substiute Parts

56A

Cinch Connectivity SolutionsIn Stock: 115156A Datasheet

Current PartRFQ

831

Keystone ElectronicsIn Stock: 1540831 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Cinch Connectivity Solutions 56A terminal lug strip is determined by the following critical parameters:

Position Configuration: The part must maintain 8 positions with 6 standard positions plus 2 ground positions to preserve circuit functionality.

Terminal Type: Single-end terminal lugs are required to match the original design interface.

Mounting Compatibility: The 0.140" (3.56mm) mounting hole diameter must be identical to ensure mechanical fit in existing assemblies.

Row Configuration: Single-row layout is mandatory for spatial and electrical compatibility.

The Keystone Electronics 831 qualifies as a substitute based on matching these core parameters. However, the 831 features a different pitch specification (0.375" versus 2.625"), which represents a fundamental geometric difference in terminal spacing. This difference requires careful evaluation during component selection to ensure compatibility with existing circuit board layouts and connector interfaces.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The Cinch 56A is classified as obsolete, while the Keystone 831 maintains active product status. Active status indicates ongoing manufacturer support, availability, and potential design improvements.

Compliance Differences: The Keystone 831 is ROHS3 compliant, whereas the Cinch 56A is RoHS non-compliant. Selection of the Keystone 831 aligns with current regulatory requirements for electronic components in many jurisdictions.

Material and Contact Specifications: The Keystone 831 employs brass contacts with tin finish, differing from the steel contacts with cadmium finish in the Cinch 56A. Both materials are suitable for terminal lug applications; however, the brass/tin combination in the 831 offers improved corrosion resistance characteristics.

Geometric Compatibility: The significant pitch difference (2.625" versus 0.375") between the two parts necessitates verification of mechanical fit within the target application. This parameter difference is the primary consideration for determining substitution feasibility.

Frequently Asked Questions (FAQ)

Q: Can the Keystone 831 directly replace the Cinch 56A in existing assemblies?

A: Direct replacement depends on circuit board layout and connector interface design. The 0.375" pitch of the Keystone 831 differs substantially from the 2.625" pitch of the Cinch 56A. Physical fit verification is required before substitution.

Q: What is the significance of the pitch difference between these two parts?

A: Pitch defines the center-to-center spacing between terminal positions. The Cinch 56A uses 2.625" spacing, while the Keystone 831 uses 0.375" spacing. This affects the overall physical dimensions and mounting compatibility. The Cinch 56A board measures 0.375" W x 0.625" H, while the Keystone 831 measures 3.000" L x 0.375" W x 0.062" H.

Q: Are the mounting holes compatible between these parts?

A: Yes, both parts feature 0.140" (3.56mm) mounting hole diameters, providing mechanical compatibility at the mounting interface level.

Q: What are the implications of the RoHS compliance difference?

A: The Keystone 831 is ROHS3 compliant, meeting current environmental and regulatory standards. The Cinch 56A is RoHS non-compliant. For new designs or applications subject to RoHS regulations, the Keystone 831 is the appropriate selection.

Q: How do the contact materials differ, and does this affect performance?

A: The Cinch 56A uses steel contacts with cadmium finish; the Keystone 831 uses brass contacts with tin finish. Brass provides superior electrical conductivity and corrosion resistance compared to steel. Tin finish offers better oxidation resistance than cadmium.

Q: Is the Keystone 831 available in the same packaging as the Cinch 56A?

A: The Keystone 831 is supplied in bulk packaging, whereas the Cinch 56A packaging specification is listed as a dash, indicating standard packaging. Confirm packaging requirements with procurement specifications.

Q: What is the board material difference between these parts?

A: The Cinch 56A uses XPC board material, while the Keystone 831 uses XP Phenolic. Both are suitable for terminal lug strip applications; XP Phenolic is a standard material for this component category.