Keystone Electronics 1661 Equivalent & Substitute Parts

Part Overview

The Keystone Electronics 1661 is a solderless tip plug connector designed for standard tip applications. This connector features a male gender configuration with non-mating end insulation and is constructed from polyamide (PA66) nylon material with nickel-plated brass contacts. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and component procurement.

Substiute Parts

1661

Keystone ElectronicsIn Stock: 7221661 Datasheet

Current PartRFQ

105-0303-001

Cinch Connectivity Solutions JohnsonIn Stock: 5163105-0303-001 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Keystone Electronics 1661 is determined by strict alignment of the following critical parameters:

• Connector Type: Tip Plug configuration
• Gender: Male
• Plug/Mating Plug Diameter: Standard Tip
• Mounting Type: Free Hanging (In-Line)
• Termination Method: Solderless
• Insulation Configuration: Non-Mating End Insulated
• Contact Material: Brass with Nickel finish
• Body Material: Polyamide (PA66), Nylon 6/6
• Color: Black
• Regulatory Compliance: ROHS3 Compliant

The substitute part Cinch Connectivity Solutions Johnson 105-0303-001 meets all these critical parameters, establishing direct functional equivalence for component replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The Cinch Connectivity Solutions Johnson 105-0303-001 is the direct equivalent substitute for the obsolete Keystone Electronics 1661. Both components maintain identical electrical and mechanical specifications across all critical parameters. The Cinch part carries active product status with current manufacturing support, whereas the Keystone 1661 is obsolete. Both components satisfy ROHS3 compliance requirements and carry unlimited moisture sensitivity classification. The Cinch 105-0303-001 is available in bulk packaging with substantial inventory levels, supporting production and replacement applications without design modification.

Frequently Asked Questions (FAQ)

Q: Can the Cinch 105-0303-001 directly replace the Keystone 1661 without circuit modification?

A: Yes. Both components share identical connector type, gender, plug diameter, mounting configuration, termination method, insulation design, contact materials, and body materials. Direct substitution is supported without circuit or mechanical redesign.

Q: What is the significance of the product status difference between the two parts?

A: The Keystone 1661 is classified as obsolete, indicating discontinued manufacturing and limited availability. The Cinch 105-0303-001 maintains active product status with ongoing manufacturing support and current inventory availability, making it the appropriate selection for new procurement and long-term supply chain continuity.

Q: Are both components compliant with current regulatory standards?

A: Both the Keystone 1661 and Cinch 105-0303-001 are ROHS3 compliant. The Cinch part is REACH affected, while the Keystone part is REACH unaffected. Both components carry MSL 1 (Unlimited) classification.

Q: What packaging options are available for the substitute part?

A: The Cinch 105-0303-001 is supplied in bulk packaging, suitable for production assembly and component stocking applications.

Q: Are there any operating temperature differences between the two components?

A: The Keystone 1661 specifies a maximum operating temperature of 100°C. The Cinch 105-0303-001 specifies an operating temperature range of -55°C to 85°C. Application requirements should be evaluated against these specifications.