TE Connectivity AMP Connectors 641284-3 Card Edge Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 641284-3 is a 3-position female card edge connector from the MTA-156 series, designed for single-edge card applications with 0.156" (3.96mm) pitch spacing. This connector features IDC termination, phosphor bronze contacts with tin-lead finish, and operates across the temperature range of -55°C to 105°C.

The 641284-3 is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and field service requirements for legacy systems utilizing this connector type.

Substiute Parts

641284-3

TE Connectivity AMP ConnectorsIn Stock: 784641284-3 Datasheet

Current PartRFQ

3-641284-3

TE Connectivity AMP ConnectorsIn Stock: 11903-641284-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 641284-3 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector type: Card edge, single edge configuration
• Gender: Female
• Number of positions: 3
• Pitch: 0.156" (3.96mm)
• Card thickness: 0.062" (1.57mm)
• Mounting type: Free hanging (in-line)
• Termination method: IDC
• Contact material: Phosphor bronze
• Operating temperature range: -55°C to 105°C
• Insulation material: Polyester thermoplastic
• Series: MTA-156

The substitute part 3-641284-3 maintains full equivalence across all mandatory parameters. The primary distinction between the main part and the substitute is the contact finish specification and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-641284-3 is the direct equivalent for the obsolete 641284-3. Selection of the substitute part is supported by the following factors:

Product Status: The 641284-3 is classified as obsolete, while 3-641284-3 maintains active product status with current manufacturing support and availability (1083 pieces in stock versus 689 pieces for the obsolete part).

Regulatory Compliance: The substitute part 3-641284-3 is ROHS3 compliant, whereas the main part is RoHS non-compliant. This distinction is significant for applications subject to RoHS regulations and modern procurement standards.

Contact Finish Specification: The main part features tin-lead contact finish, while the substitute features tin-only finish. Both maintain identical finish thickness of 80.0µin (2.03µm) and are applied to the same phosphor bronze contact material. The tin-only finish in the substitute part aligns with contemporary lead-free manufacturing practices.

Functional Equivalence: All electrical and mechanical parameters remain identical between the two parts, including pitch, position count, card thickness tolerance, operating temperature range, termination method, and insulation material. The connectors are mechanically and electrically interchangeable.

For new designs and ongoing production, the 3-641284-3 is the appropriate selection. For legacy system maintenance where the original 641284-3 specification is required, the 3-641284-3 provides full functional substitution with enhanced regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Are the 641284-3 and 3-641284-3 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including 3-position configuration, 0.156" pitch, 0.062" card thickness, single-edge design, and free-hanging in-line mounting. Physical installation and card edge engagement are identical.

Q: Are the 641284-3 and 3-641284-3 electrically interchangeable?

A: Yes. Both connectors feature phosphor bronze contacts with 80.0µin finish thickness, identical IDC termination, and operate across the same temperature range of -55°C to 105°C. Electrical performance and signal integrity characteristics are equivalent.

Q: What is the difference between tin-lead and tin contact finishes?

A: The main part (641284-3) uses tin-lead finish, while the substitute (3-641284-3) uses tin-only finish. Both finishes are applied to the same base material at identical thickness. The tin-only finish in the substitute aligns with lead-free manufacturing standards and RoHS3 compliance requirements.

Q: Why is the 641284-3 classified as obsolete?

A: The 641284-3 is an obsolete product designation from TE Connectivity. The 3-641284-3 represents the current active equivalent with ongoing manufacturing support and supply availability.

Q: Does the RoHS compliance difference affect substitution?

A: The 3-641284-3 is ROHS3 compliant while the 641284-3 is RoHS non-compliant. For applications subject to RoHS regulations or modern procurement requirements, the 3-641284-3 is the appropriate selection. Both parts are functionally equivalent for applications without RoHS mandates.

Q: Are there any packaging differences between these parts?

A: Packaging information is not specified in the technical data for either part. Contact the manufacturer or authorized distributor for current packaging configurations and quantities.

Q: Can the 3-641284-3 be used as a direct replacement in existing assemblies?

A: Yes. The 3-641284-3 is a direct functional and mechanical replacement for the 641284-3. No design modifications or assembly process changes are required.

Q: What is the MSL rating for these connectors?

A: Both the 641284-3 and 3-641284-3 carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.