TE Connectivity 2-641267-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 2-641267-1 is a 28-position DIP socket connector with 0.6" (15.24mm) row spacing, designed for through-hole mounting applications. This component features tin-plated beryllium copper contacts and a closed-frame thermoplastic housing rated UL94 V-0. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility with existing circuit designs.

Substiute Parts

2-641267-1

TE Connectivity AMP ConnectorsIn Stock: 11342-641267-1 Datasheet

Current PartRFQ

A 28-LC-TR

Assmann WSW ComponentsIn Stock: 1368A 28-LC-TR Datasheet

DirectRFQ

4828-6004-CP

3MIn Stock: 40064828-6004-CP Datasheet

SimilarRFQ

A 28-LC-TT

Assmann WSW ComponentsIn Stock: 5610A 28-LC-TT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 2-641267-1 is determined by strict equivalence in the following critical parameters:

• Position Count & Row Spacing: All substitute parts maintain 28 positions in a 2 x 14 configuration with 0.6" (15.24mm) row spacing
• Pitch Specifications: Mating and post pitch remain 0.100" (2.54mm) across all alternatives
• Contact Finish: All substitutes feature tin plating for solder termination compatibility
• Mounting Configuration: Through-hole mounting is maintained across all options
• Flammability Compliance: All alternatives meet UL94 V-0 rating
• Contact Resistance: All substitutes specify 30mOhm contact resistance
• Regulatory Compliance: All parts are ROHS3 compliant with MSL 1 rating

Variations exist in contact material composition (phosphor bronze versus beryllium copper), housing material, frame design (open versus closed), and maximum operating temperature. These variations do not preclude functional substitution when application thermal requirements are within the specified limits of the substitute part.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes: The Assmann WSW Components A 28-LC-TR and A 28-LC-TT are the preferred alternatives to the obsolete TE Connectivity 2-641267-1. Both parts are active products with identical position counts, pitch specifications, and operating temperature ranges matching or exceeding the original component's -55°C lower limit. Both maintain the required -55°C ~ 85°C operating window and are ROHS3 compliant with MSL 1 rating.

Secondary Substitute: The 3M 4828-6004-CP provides functional equivalence for applications with reduced thermal requirements. This part operates within -25°C ~ 85°C, which is suitable for standard commercial and industrial environments but does not extend to the -55°C lower limit of the original specification.

Compliance Basis: All three substitute parts maintain UL94 V-0 flammability compliance and ROHS3 regulatory status, ensuring compatibility with existing design certifications and supply chain requirements. The transition from beryllium copper to phosphor bronze contact material in all substitutes does not compromise electrical performance, as contact resistance specifications remain at 30mOhm.

Inventory Availability: The A 28-LC-TT variant offers the highest inventory availability at 5,518 pieces, followed by the 3M 4828-6004-CP at 3,952 pieces, and the A 28-LC-TR at 1,288 pieces.

Frequently Asked Questions (FAQ)

Q: Can the Assmann WSW A 28-LC-TR or A 28-LC-TT directly replace the TE Connectivity 2-641267-1 in existing designs?

A: Yes. Both Assmann parts maintain identical position counts (28), row spacing (0.6"), pitch specifications (0.100"), contact finish (tin), mounting type (through-hole), and flammability rating (UL94 V-0). The primary difference is the contact material composition (phosphor bronze versus beryllium copper) and frame design (open versus closed), neither of which affects functional compatibility in standard DIP socket applications.

Q: What is the temperature limitation when using the 3M 4828-6004-CP as a substitute?

A: The 3M part operates within -25°C ~ 85°C, compared to the original part's -55°C ~ 105°C range. Applications requiring operation below -25°C or above 85°C must use the Assmann WSW alternatives, which support -55°C ~ 85°C operation.

Q: Are there differences in packaging between the substitute parts?

A: All substitute parts are supplied in tube packaging. The original TE Connectivity part does not specify packaging format. Tube packaging is standard for DIP socket connectors and does not affect component functionality or PCB assembly compatibility.

Q: Does the change from closed-frame to open-frame design affect socket performance?

A: Frame design differences do not affect electrical performance or contact integrity. The open-frame design of the Assmann and 3M substitutes provides equivalent mechanical retention and electrical connection characteristics for standard DIP component insertion and removal cycles.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All three substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the regulatory status of the original TE Connectivity component.

Q: What is the contact resistance specification for the 3M 4828-6004-CP?

A: The 3M part does not specify contact resistance in the provided data. The Assmann WSW alternatives both specify 30mOhm contact resistance, matching the original TE Connectivity specification.