Equivalent & Substitute Parts for 6-141 Barrier Block Connector

Part Overview

The Cinch Connectivity Solutions 6-141 is a 6-circuit barrier block terminal connector with 0.438" (11.12mm) pitch spacing, designed for panel and chassis mounting applications. This component features dual-wall barrier construction, screw termination, and a 20A current rating at 250V. The part is currently active in production with RoHS compliance and unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part's specifications, enabling direct replacement in applications where the original component may be unavailable or where alternative sourcing is required.

Substiute Parts

6-141

Cinch Connectivity SolutionsIn Stock: 13926-141 Datasheet

Current PartRFQ

0387800106

MolexIn Stock: 31700387800106 Datasheet

SimilarRFQ

1546671-6

TE Connectivity AMP ConnectorsIn Stock: 35731546671-6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 6-141 is determined by the following critical parameters:

• Circuit Configuration: 6 circuits with 12 wire entries and 2-row arrangement
• Pitch Spacing: 0.438" (11.12mm) nominal, with tolerance of ±0.001" acceptable for mechanical fit
• Barrier Construction: Dual-wall (2 Wall) barrier type for electrical isolation
• Termination Method: Screw-based top termination with closed bottom configuration
• Electrical Performance: Minimum 250V voltage rating and minimum 20A current capacity
• Wire Compatibility: Support for 14 AWG wire gauge minimum
• Mounting Interface: Chassis or panel mounting capability
• Environmental Compliance: RoHS compliance and MSL 1 rating

Parts meeting these criteria are classified as direct substitutes. Variations in insulation material, terminal finish, or operating temperature do not preclude substitution when core electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

6-141 (Cinch Connectivity Solutions): Active production status with current availability of 1311 units. RoHS compliant with phenolic insulation material. Suitable for applications requiring 20A at 250V with standard 14 AWG wire gauge.

0387800106 (Molex): Last Time Buy status indicates limited future availability. ROHS3 compliant with thermoplastic insulation. Current rating of 15A is lower than the main part; this part is suitable only for applications with maximum 15A current requirements. Voltage rating of 300V exceeds the 6-141 specification.

1546671-6 (TE Connectivity): Active production status with 3509 units in inventory. RoHS compliant with thermoplastic insulation and higher current rating of 25A. Pitch tolerance of 0.437" (11.10mm) represents a 0.02mm deviation from the 6-141 specification; mechanical fit compatibility must be verified for applications with tight tolerance requirements. Voltage rating of 300V and wire gauge support of 14-22 AWG provide broader application flexibility.

Selection between active parts (6-141 and 1546671-6) depends on application current requirements and mechanical tolerance constraints. The Molex part (0387800106) should be avoided for new designs due to Last Time Buy status.

Frequently Asked Questions (FAQ)

Q: Can the 0387800106 (Molex) directly replace the 6-141 in all applications?

A: No. The Molex part has a maximum current rating of 15A, compared to the 6-141's 20A rating. It is suitable only for applications operating at 15A or below. Additionally, the part is in Last Time Buy status, limiting future procurement.

Q: What is the significance of the 0.001" pitch difference between the 6-141 and 1546671-6?

A: The 1546671-6 has a pitch of 0.437" (11.10mm) versus the 6-141's 0.438" (11.12mm). This 0.02mm difference is within typical manufacturing tolerances for barrier block connectors. Mechanical fit compatibility should be verified in applications with tight tolerance requirements or where the connector interfaces with precision-machined mounting surfaces.

Q: Are all three parts RoHS compliant?

A: Yes. The 6-141 and 1546671-6 are RoHS compliant. The 0387800106 is ROHS3 compliant, which represents a more recent revision of the RoHS standard and is also acceptable for RoHS-regulated applications.

Q: What is the difference between phenolic and thermoplastic insulation materials?

A: The 6-141 uses phenol formaldehyde (phenolic) insulation, while the Molex and TE Connectivity parts use thermoplastic insulation. Both materials meet the electrical and mechanical requirements for barrier block connectors. Thermoplastic materials generally offer improved impact resistance and lower moisture absorption, while phenolic materials provide established performance in legacy applications.

Q: Can the 1546671-6 handle higher current than the 6-141?

A: Yes. The 1546671-6 has a 25A current rating compared to the 6-141's 20A rating. It is suitable for applications requiring higher current capacity while maintaining the same 6-circuit, dual-barrier configuration.

Q: What does "Last Time Buy" status mean for the Molex part?

A: Last Time Buy indicates that the manufacturer has announced the end of production for this part. Existing inventory may be available, but no new production runs are planned. For long-term applications, sourcing from active production parts (6-141 or 1546671-6) is recommended.