TE Connectivity 641148-8 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 641148-8 is an 8-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 18 AWG discrete or ribbon cable. This connector features gold-plated female socket contacts, a locking ramp fastening mechanism, and closed-end construction in orange housing. The part is currently active in production with 1044 units in stock. Substitute parts are identified to address packaging variations, compliance requirements, and inventory availability while maintaining identical electrical and mechanical specifications.

Substiute Parts

641148-8

TE Connectivity AMP ConnectorsIn Stock: 1067641148-8 Datasheet

Current PartRFQ

3-641148-8

TE Connectivity AMP ConnectorsIn Stock: 10183-641148-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 641148-8 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part 3-641148-8 maintains identical specifications in connector type, position count, pitch, contact configuration, wire gauge, IDC termination method, gold contact finish, fastening mechanism, row configuration, mounting style, and closed-end construction. The primary distinction between the main part and its substitute is packaging format and RoHS compliance status. Both parts are manufactured by TE Connectivity AMP Connectors within the MTA-156 series and share the same base product number (641148), confirming functional interchangeability.

Key Parameters Determining Substitution:

• Connector Type: Receptacle
• Number of Positions: 8
• Pitch: 0.156" (3.96mm)
• Contact Type: Female Socket
• Wire Gauge: 18 AWG
• Cable Termination: IDC
• Contact Finish: Gold
• Fastening Type: Locking Ramp
• Series: MTA-156

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-641148-8 provides complete functional equivalence to the main part 641148-8 across all electrical and mechanical specifications. Selection between these parts is determined by application requirements and regulatory compliance needs.

For applications requiring RoHS3 compliance: The substitute part 3-641148-8 is the appropriate selection, as it meets ROHS3 compliance requirements while maintaining all electrical and mechanical characteristics of the original specification.

For applications without RoHS compliance requirements: Either part may be selected based on packaging format and inventory availability. The main part 641148-8 is available with 1044 units in stock, while the substitute 3-641148-8 is available in bulk packaging with 959 units in stock.

Both parts maintain identical performance in IDC termination, contact resistance, mechanical retention, and environmental ratings. The Moisture Sensitivity Level 1 (Unlimited) classification applies to both parts, indicating no special moisture handling requirements during storage or assembly.

Frequently Asked Questions (FAQ)

Q: Can 3-641148-8 be used as a direct replacement for 641148-8 in existing designs?

A: Yes. The substitute part 3-641148-8 is electrically and mechanically identical to 641148-8. All critical parameters including connector type, position count, pitch, contact configuration, wire gauge, termination method, and fastening mechanism are equivalent. The parts are interchangeable in applications where the packaging format and RoHS compliance status are compatible with design requirements.

Q: What is the primary difference between 641148-8 and 3-641148-8?

A: The primary differences are packaging format and RoHS compliance status. The main part 641148-8 is RoHS non-compliant, while the substitute 3-641148-8 is ROHS3 compliant. The substitute is supplied in bulk packaging. All electrical and mechanical specifications are identical.

Q: Are both parts suitable for IDC termination with 18 AWG cable?

A: Yes. Both 641148-8 and 3-641148-8 are designed for IDC termination with 18 AWG discrete or ribbon cable. The contact design, pitch, and fastening mechanism are identical across both parts.

Q: What is the pitch specification for these connectors?

A: Both parts feature a 0.156" (3.96mm) pitch, which is the standard spacing for the MTA-156 series. This pitch is critical for mechanical compatibility with mating connectors and cable assemblies.

Q: Do these connectors require special moisture handling during storage?

A: No. Both parts are classified as Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control measures are required during storage, handling, or assembly.

Q: Can these 8-position connectors be used with different wire gauges?

A: No. Both parts are specified for 18 AWG wire only. The IDC contact design and termination mechanism are optimized for this wire gauge. Using different wire gauges will result in improper termination and potential contact failure.

Q: What is the fastening mechanism for these connectors?

A: Both parts use a locking ramp fastening type. This mechanism provides positive retention and secure mating between the receptacle connector and its corresponding plug connector.

Q: Are these connectors available in other contact finishes?

A: Based on the provided specifications, both parts feature gold contact finish with 3.00µin (0.076µm) thickness. No alternative finishes are specified for these part numbers.