3M 4640-7201 Rectangular Connector Plug - Equivalent & Substitute Parts

Part Overview

The 3M 4640-7201 is a 40-position rectangular plug connector with IDC (Insulation Displacement Contact) termination, designed for discrete or ribbon cable applications. This connector features gold-plated contacts rated for 26-28 AWG wire gauges and employs a latch lock/eject hook fastening mechanism. The part is currently active in production and widely used in industrial and telecommunications applications where reliable in-line connectivity is required. Substitute parts may be necessary due to inventory availability, lead time constraints, or specific application requirements within the same connector family.

Substiute Parts

4640-7201

3MIn Stock: 10564640-7201 Datasheet

Current PartRFQ

4640-6001

3MIn Stock: 14954640-6001 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3M 4640-7201 is determined by strict adherence to the following critical parameters:

• Connector Family: Must belong to the 3M 4600 series rectangular connector family
• Position Count: Must maintain 40-position configuration
• Contact Type: Must be male pin contacts
• Pitch and Row Configuration: Must match 0.100" (2.54mm) pitch with 2-row layout and 0.100" row spacing
• Termination Method: Must support IDC (Insulation Displacement Contact) termination
• Wire Gauge Compatibility: Must accommodate 26-28 AWG wire, stranded or solid
• Contact Finish: Must feature gold plating at 30.0µin (0.76µm) thickness
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating

The 3M 4640-6001 qualifies as a direct substitute based on these parameters. The primary functional difference is the fastening mechanism: the 4640-7201 includes latch lock/eject hooks (short), while the 4640-6001 features a feed-through design without specified fastening hardware. Both connectors maintain identical electrical and mechanical specifications for position count, pitch, contact configuration, and termination method.

Parameter Comparison

Engineering Selection Recommendations

Both the 3M 4640-7201 and 4640-6001 are active production parts with full ROHS3 compliance and MSL 1 ratings, ensuring regulatory compliance and environmental stability across standard storage and handling conditions. Selection between these parts should be based on fastening mechanism requirements specific to the application. The 4640-7201 with latch lock/eject hooks provides positive mechanical retention and secure mating, suitable for applications requiring frequent connection/disconnection cycles or where accidental disconnection must be prevented. The 4640-6001 with feed-through design offers simplified assembly and is appropriate for fixed installations where connectors remain permanently mated. Both parts maintain identical electrical performance, contact reliability, and wire termination specifications, ensuring functional interchangeability within the specified fastening context.

Frequently Asked Questions (FAQ)

Q: Can the 4640-6001 directly replace the 4640-7201 in existing assemblies?

A: Electrical and mechanical compatibility is confirmed across all critical parameters including position count, pitch, contact configuration, wire gauge, and termination method. However, the fastening mechanism differs: the 4640-7201 includes latch lock/eject hooks while the 4640-6001 uses a feed-through design. Substitution is valid only if the application does not require the specific latch lock retention feature.

Q: Are there any differences in contact reliability or signal integrity between these parts?

A: No. Both connectors feature identical gold contact finish at 30.0µin (0.76µm) thickness, the same IDC termination method, and equivalent male pin contact specifications. Signal integrity and contact reliability are equivalent.

Q: What wire gauges are supported by both connectors?

A: Both the 4640-7201 and 4640-6001 support 26-28 AWG wire in stranded or solid configuration, accommodating both discrete and ribbon cable applications.

Q: Are both parts suitable for the same environmental conditions?

A: Yes. Both parts carry MSL 1 (Unlimited) ratings and ROHS3 compliance, indicating equivalent performance across standard industrial storage, handling, and operational environments.

Q: What is the pitch and row configuration for these connectors?

A: Both connectors feature 0.100" (2.54mm) pitch with a 2-row layout and 0.100" (2.54mm) row spacing, maintaining identical mechanical footprint and mating interface.