Cinch Connectivity Solutions 53A Terminal Lug Strip Equivalent & Substitute Parts

Part Overview

The Cinch Connectivity Solutions 53A is a 5-position terminal lug strip with 1.500" (38.10mm) pitch spacing, designed for single-end terminal lug applications. This component features a 5-position configuration with 3 standard positions and 2 ground positions. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing maintenance, repair, and legacy system support.

Substiute Parts

53A

Cinch Connectivity SolutionsIn Stock: 70453A Datasheet

Current PartRFQ

819

Keystone ElectronicsIn Stock: 1368819 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Cinch 53A is determined by the following critical parameters:

• Number of Positions and Configuration: The substitute must provide 5 positions with identical ground position allocation (3 + 2 Ground)
• Terminal Type: Single-end terminal lug configuration is required
• Pitch Spacing: The 1.500" (38.10mm) pitch establishes the electrical and mechanical spacing requirements
• Number of Rows: Single-row configuration must be maintained
• Mounting Hole Diameter: 0.140" (4.66mm) mounting compatibility
• Moisture Sensitivity Level: MSL 1 (Unlimited) indicates no moisture-related constraints

The Keystone Electronics 819 is identified as a substitute based on matching the core functional parameters: 5-position configuration with 3 + 2 ground allocation, single-end terminal lug type, single-row design, and identical mounting hole diameter. While pitch spacing differs (0.375" vs. 1.500"), this reflects a different physical form factor suitable for alternative mounting applications where the functional terminal configuration remains equivalent.

Parameter Comparison

Engineering Selection Recommendations

The Keystone Electronics 819 serves as the primary substitute for the obsolete Cinch 53A. Selection should be based on the following engineering considerations:

Product Status: The Keystone 819 maintains active product status, ensuring ongoing availability and supply chain continuity compared to the obsolete Cinch 53A.

Compliance Posture: The Keystone 819 is ROHS3 compliant, whereas the Cinch 53A is RoHS non-compliant. For applications subject to RoHS regulations or environmental compliance requirements, the Keystone 819 is the appropriate selection.

Functional Equivalence: Both components provide identical terminal position configuration (5 positions with 3 + 2 ground allocation), single-end terminal lug type, and single-row design. Mounting hole diameter compatibility (0.140") is maintained.

Material and Contact Specifications: The Keystone 819 uses brass contacts with tin finish, whereas the Cinch 53A uses steel contacts with cadmium finish. Contact material and finish differences may affect electrical conductivity and corrosion resistance characteristics in specific application environments.

Physical Form Factor: Pitch spacing differs between the two components (0.375" for Keystone 819 vs. 1.500" for Cinch 53A). Physical layout and mounting space requirements must be evaluated for compatibility with existing mechanical designs.

Frequently Asked Questions (FAQ)

Q: Can the Keystone 819 directly replace the Cinch 53A in all applications?

A: The Keystone 819 provides functional equivalence in terminal position configuration and mounting hole diameter. However, the difference in pitch spacing (0.375" vs. 1.500") requires verification of physical layout compatibility. Contact material and finish differences (brass/tin vs. steel/cadmium) may affect performance in specific electrical or environmental conditions.

Q: What is the significance of the pitch spacing difference?

A: Pitch spacing determines the physical distance between terminal positions. The Cinch 53A uses 1.500" spacing, while the Keystone 819 uses 0.375" spacing. This affects board dimensions and mounting footprint. Selection must align with the mechanical constraints of the target application.

Q: Why is RoHS compliance important for this substitution?

A: RoHS compliance restricts the use of hazardous substances in electrical and electronic equipment. The Keystone 819 is ROHS3 compliant, making it suitable for applications and markets with RoHS regulatory requirements. The Cinch 53A is RoHS non-compliant and may not be acceptable for new designs or regulated applications.

Q: How do contact material differences affect component selection?

A: Contact material (brass vs. steel) and finish (tin vs. cadmium) influence electrical conductivity, corrosion resistance, and long-term reliability. Brass with tin finish typically provides superior corrosion resistance compared to steel with cadmium finish. Application environment and electrical performance requirements should guide material selection.

Q: Are both components suitable for unlimited moisture exposure?

A: Both components have Moisture Sensitivity Level (MSL) 1, indicating unlimited moisture tolerance. Neither component requires special moisture control during storage or handling.