Cinch Connectivity Solutions 3-140 Equivalent & Substitute Parts

Part Overview

The Cinch Connectivity Solutions 3-140 is a 3-circuit barrier block connector with 0.375" (9.53mm) pitch spacing, designed for screw-based termination in chassis and panel mounting applications. This terminal block operates at 15A current rating and 250V voltage rating, utilizing a dual-wall barrier design with phenolic insulation material. The product is currently active in production with 1563 pieces available in new original inventory stock.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part specifications, enabling direct replacement in applications where the original part number becomes unavailable or when inventory constraints require alternative sourcing.

Substiute Parts

3-140

Cinch Connectivity SolutionsIn Stock: 16003-140 Datasheet

Current PartRFQ

0387700103

MolexIn Stock: 29200387700103 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Molex 0387700103 qualifies as a substitute for the Cinch Connectivity Solutions 3-140 based on the following alignment of critical parameters:

Matching Electrical Specifications:

• Number of Circuits: 3
• Pitch: 0.375" (9.53mm)
• Number of Rows: 2
• Number of Wire Entries: 6
• Top Termination: Screws
• Bottom Termination: Closed
• Barrier Type: 2 Wall (Dual)
• Mounting Type: Chassis, Panel
• Features: Flange
• Color: Black

Matching Mechanical Specifications:

• Terminal Block Type: Barrier Block
• Current Rating: 15A
• Termination Method: Screw-based

Compliance Alignment:

• RoHS Status: Both parts are RoHS compliant
• REACH Status: Both parts are REACH Unaffected
• ECCN Classification: Both parts classified as EAR99
• HTSUS Code: Both parts classified as 8536.90.4000

The substitute relationship is established through equivalence in form, fit, and function within the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

The Cinch Connectivity Solutions 3-140 remains the specified part for applications where the original design validation and qualification have been completed against this exact part number.

The Molex 0387700103 serves as a direct substitute when the Cinch 3-140 is unavailable. Both parts maintain active product status and comply with current regulatory requirements (RoHS3 and REACH). The substitute part provides equivalent electrical performance at the specified 15A current rating and exceeds the voltage requirement with a 300V rating versus the 250V specification of the main part.

Compatibility Considerations:

Both parts share identical mechanical form factors: 3-circuit configuration, 0.375" pitch spacing, 2-row arrangement, dual-wall barrier design, and flange-mounted chassis/panel mounting capability. Screw-based termination is consistent across both parts, enabling direct wire connection methodology without modification.

The Molex substitute accommodates a broader wire gauge range (14-22 AWG) compared to the Cinch specification (16 AWG), providing flexibility in conductor sizing while maintaining compatibility with the 16 AWG application requirement.

Regulatory and Compliance Status:

Both parts are classified under identical ECCN (EAR99) and HTSUS (8536.90.4000) codes, ensuring consistent export and tariff treatment. RoHS3 compliance of the substitute part meets or exceeds the RoHS compliance requirement of the main part. REACH Unaffected status is maintained across both parts.

Frequently Asked Questions (FAQ)

Q: What defines substitutability between the Cinch 3-140 and Molex 0387700103?

A: Substitutability is established through equivalence in terminal block type, circuit count, pitch spacing, row configuration, current rating, termination method, barrier design, mounting type, and compliance certifications. Both parts are 3-circuit barrier blocks with 0.375" pitch, 15A current rating, screw termination, and dual-wall barrier construction suitable for chassis and panel mounting.

Q: Can the Molex 0387700103 be used in applications originally specified for the Cinch 3-140?

A: Yes. The Molex part meets or exceeds all specified electrical parameters. The 300V voltage rating of the Molex part exceeds the 250V requirement of the Cinch part. Wire gauge compatibility is maintained, as the Molex part accommodates 14-22 AWG conductors, including the 16 AWG specification of the original design.

Q: Are there differences in insulation material between these parts?

A: Yes. The Cinch 3-140 uses Phenol Formaldehyde (Phenolic) insulation, while the Molex 0387700103 uses Polybutylene Terephthalate (PBT) insulation. Both materials are suitable for the specified operating temperature range and electrical requirements. The Molex part carries a UL94 V-0 flammability rating.

Q: What is the operating temperature range for both parts?

A: The Cinch 3-140 specifies an operating temperature range of -55°F to 300°F. The Molex 0387700103 does not provide an explicit operating temperature specification in the available data.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both parts are RoHS compliant (Cinch: RoHS Compliant; Molex: ROHS3 Compliant) and REACH Unaffected. Both are classified as EAR99 for export control purposes and share the same HTSUS tariff classification (8536.90.4000).

Q: What are the inventory availability differences?

A: The Cinch 3-140 has 1563 pieces available in new original stock. The Molex 0387700103 has 2856 pieces available in new original stock, providing greater immediate availability for substitute sourcing.

Q: Are the screw materials and finishes identical?

A: Both parts use steel terminal screws. The Cinch part specifies Nickel finish, while the Molex part specifies Zinc with Clear Chromate finish. Both finishes provide corrosion resistance suitable for the specified electrical and environmental requirements.

Q: Can these parts be intermixed in the same assembly?

A: Yes. Both parts share identical mechanical form factors, pitch spacing, mounting interfaces, and termination methodology, enabling direct substitution without assembly modification or redesign.