3M 3417-7640 Equivalent & Substitute Parts

Part Overview

The 3M 3417-7640 is a 40-position rectangular receptacle connector with IDC (Insulation Displacement Contact) termination for ribbon cable applications. This connector features gold-plated contacts, polarizing key design, and closed-end construction suitable for free-hanging in-line mounting. The part is Active status and ROHS3 compliant, making it suitable for current production environments. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or supply chain optimization.

Substiute Parts

3417-7640

3MIn Stock: 9493417-7640 Datasheet

Current PartRFQ

1658621-9

TE Connectivity AMP ConnectorsIn Stock: 118171658621-9 Datasheet

MFR RecommendedRFQ

1658624-9

TE Connectivity AMP ConnectorsIn Stock: 7271658624-9 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3M 3417-7640 are qualified based on the following critical parameters that determine functional equivalence:

• Connector Configuration: 40-position receptacle with 2-row arrangement at 0.100" pitch and row spacing
• Termination Method: IDC cable termination for 26-28 AWG ribbon cable
• Contact System: Gold-plated contacts with polarizing key feature
• Mounting: Free-hanging in-line configuration
• Compliance: ROHS3 compliance and MSL 1 rating

The identified substitutes (TE Connectivity 1658621-9 and 1658624-9) maintain these core electrical and mechanical parameters, enabling direct functional replacement in ribbon cable connector applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status and ROHS3 compliance, qualifying them for current production use. Selection between the 3M 3417-7640 and TE Connectivity substitutes should be based on the following factors derived from provided specifications:

Contact Finish Thickness Consideration: The 3M 3417-7640 and TE Connectivity 1658624-9 both specify 30.0µin (0.76µm) contact finish thickness, while the TE Connectivity 1658621-9 specifies 15.0µin (0.38µm). Applications requiring specific contact durability or wear characteristics should reference these thickness values.

Connector End Configuration: The 3M 3417-7640 features closed-end construction with strain relief, while both TE Connectivity substitutes feature feed-through design. Physical space constraints and cable routing requirements should inform this selection.

Wire Gauge Specification: The TE Connectivity 1658624-9 does not specify wire gauge in the provided data, whereas both the 3M 3417-7640 and TE Connectivity 1658621-9 explicitly support 26-28 AWG ribbon cable.

Color Differentiation: The 3M part is gray; both TE Connectivity substitutes are black. This may impact visual identification in assembly or maintenance procedures.

All parts share identical pitch, row configuration, IDC termination method, and compliance certifications, confirming functional equivalence for ribbon cable connector applications.

Frequently Asked Questions (FAQ)

Q: Can TE Connectivity 1658621-9 and 1658624-9 be used interchangeably with the 3M 3417-7640?

A: Both TE Connectivity parts maintain the same 40-position, 2-row configuration at 0.100" pitch with IDC termination for 26-28 AWG ribbon cable. Functional substitution is supported. Physical differences include connector end design (closed-end vs. feed-through) and contact finish thickness, which should be evaluated for specific application requirements.

Q: What is the significance of contact finish thickness differences?

A: Contact finish thickness affects contact durability and wear resistance. The 3M 3417-7640 and TE Connectivity 1658624-9 specify 30.0µin (0.76µm), while TE Connectivity 1658621-9 specifies 15.0µin (0.38µm). Applications with high mating cycle requirements should reference these specifications.

Q: Are all three parts RoHS3 compliant?

A: Yes. The 3M 3417-7640, TE Connectivity 1658621-9, and TE Connectivity 1658624-9 are all ROHS3 compliant with MSL 1 (Unlimited) rating, suitable for unrestricted production environments.

Q: What is the difference between closed-end and feed-through connector designs?

A: The 3M 3417-7640 features closed-end construction, while TE Connectivity substitutes feature feed-through design. Closed-end connectors terminate the ribbon cable within the connector body. Feed-through connectors allow the ribbon cable to pass through. Selection depends on cable routing and assembly requirements.

Q: Is wire gauge specification critical for substitution?

A: The TE Connectivity 1658624-9 does not specify wire gauge in available data, while the 3M 3417-7640 and TE Connectivity 1658621-9 explicitly support 26-28 AWG. For applications requiring confirmed wire gauge compatibility, the 1658621-9 provides explicit specification matching.

Q: Do packaging differences affect part selection?

A: The 3M 3417-7640 is supplied in Bulk packaging, while both TE Connectivity substitutes are supplied in Tube packaging. Packaging affects handling, storage, and inventory management but does not impact electrical or mechanical function.