Cinch Connectivity Solutions 3-141 Equivalent & Substitute Parts

Part Overview

The Cinch Connectivity Solutions 3-141 is a 3-circuit barrier block connector with 0.438" (11.12mm) pitch spacing, designed for panel and chassis mounting applications. This terminal block features dual-wall barrier construction with screw termination on top and closed termination on the bottom. The part is currently active in production with 1120 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring compatible barrier block connectors with matching electrical and mechanical specifications.

Substiute Parts

3-141

Cinch Connectivity SolutionsIn Stock: 12003-141 Datasheet

Current PartRFQ

0387800103

MolexIn Stock: 55380387800103 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Cinch 3-141 are identified based on the following critical parameters that determine functional and mechanical compatibility:

• Number of Circuits: 3 circuits (fixed requirement)
• Pitch Spacing: 0.438" (11.12mm) (fixed requirement)
• Terminal Block Type: Barrier Block (fixed requirement)
• Barrier Configuration: 2 Wall (Dual) (fixed requirement)
• Top Termination: Screws (fixed requirement)
• Mounting Type: Chassis and Panel mounting capability (fixed requirement)
• Wire Gauge Compatibility: 14 AWG or broader range including 14 AWG
• Current Rating: 15A minimum (substitute may differ from 20A)
• Voltage Rating: 250V minimum (substitute may exceed this)
• Regulatory Compliance: RoHS and REACH compliance maintained

The Molex 0387800103 meets all critical fixed parameters and maintains regulatory compliance, qualifying it as a direct substitute despite minor variations in current rating, voltage rating, and wire gauge range.

Parameter Comparison

Engineering Selection Recommendations

Both the Cinch 3-141 and Molex 0387800103 maintain active product status and full regulatory compliance (RoHS and REACH). Selection between these parts should be based on application-specific current and voltage requirements:

• Cinch 3-141: Select when application requires 20A current rating at 250V or higher voltage margin is not required.
• Molex 0387800103: Select when application requires 300V voltage rating or when broader wire gauge accommodation (14-22 AWG) is beneficial. Note that current rating is 15A, which is lower than the Cinch part.

Both parts are suitable for chassis and panel mounting applications with identical pitch spacing, circuit count, and barrier block configuration. Inventory availability should be considered: Cinch 3-141 has 1120 units in stock; Molex 0387800103 has 5491 units in stock.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0387800103 be used as a direct replacement for the Cinch 3-141?

A: The Molex 0387800103 is functionally compatible as a substitute for applications operating at or below 15A and 300V. The critical parameters—circuit count, pitch spacing, barrier configuration, termination type, and mounting capability—are identical. However, if your application requires the full 20A current rating of the Cinch part, the Molex substitute is not appropriate.

Q: What are the key differences between these two parts?

A: The primary differences are current rating (Cinch 20A vs. Molex 15A), voltage rating (Cinch 250V vs. Molex 300V), wire gauge range (Cinch 14 AWG only vs. Molex 14-22 AWG), and insulation material (Cinch phenolic vs. Molex thermoplastic). All other specifications, including pitch, circuit count, and mounting type, are identical.

Q: Are both parts RoHS compliant?

A: Yes. The Cinch 3-141 is RoHS Compliant, and the Molex 0387800103 is ROHS3 Compliant. Both parts are REACH Unaffected.

Q: What is the pitch spacing, and why does it matter?

A: Both parts have 0.438" (11.12mm) pitch spacing. Pitch spacing determines the physical distance between circuits and is critical for PCB layout compatibility and mechanical fit in panel cutouts. Identical pitch ensures direct mechanical interchangeability.

Q: Can I use the Molex part if my application requires 22 AWG wire?

A: Yes. The Molex 0387800103 accommodates 14-22 AWG wire, while the Cinch 3-141 is specified for 14 AWG only. If your application uses 22 AWG wire, the Molex part provides broader compatibility.

Q: What mounting options are available?

A: Both parts support chassis and panel mounting configurations with flange features for secure installation.