TE Connectivity 2-641267-3 IC DIP Socket 28-Position Equivalent & Substitute Parts

Part Overview

The TE Connectivity 2-641267-3 is a 28-position DIP socket with 0.6" row spacing, tin-plated contacts, and through-hole solder termination. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The socket accommodates standard 28-pin DIP integrated circuits with 0.100" pitch mating contacts and phosphor bronze contact materials.

Substiute Parts

2-641267-3

TE Connectivity AMP ConnectorsIn Stock: 9652-641267-3 Datasheet

Current PartRFQ

A 28-LC-TR

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

DirectRFQ

116-93-628-41-006000

Mill-Max Manufacturing Corp.In Stock: 1036116-93-628-41-006000 Datasheet

SimilarRFQ

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 eligibility for the TE Connectivity 2-641267-3 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 28 (2 x 14)
• Row Spacing: 0.6" (15.24mm)
• Pitch - Mating: 0.100" (2.54mm)
• Pitch - Post: 0.100" (2.54mm)
• Mounting Type: Through Hole
• Termination: Solder

Allowable Variations:

• Contact Finish - Mating: Tin or Gold finishes are interchangeable based on application requirements
• Contact Material - Mating: Phosphor Bronze and Beryllium Copper are functionally equivalent
• Operating Temperature Range: Substitutes with lower maximum ratings (-55°C to 85°C) are acceptable for applications not requiring the full 105°C capability
• Housing Material: Thermoplastic glass-filled, PBT, and polyester materials are acceptable alternatives
• Frame Type: Closed frame (main part) and open frame (substitutes) are functionally compatible
• Contact Resistance: 30mOhm specification is maintained across all substitutes

All identified substitute parts meet these criteria and maintain ROHS3 compliance and MSL 1 rating.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement):

The Assmann WSW Components A 28-LC-TR and A 28-LC-TT are the preferred substitutes for the obsolete TE Connectivity 2-641267-3. Both parts maintain ROHS3 compliance, MSL 1 rating, and 30mOhm contact resistance specification. The A 28-LC-TR and A 28-LC-TT differ only in frame type (closed versus open) and are functionally equivalent. Both are currently in active production status with substantial inventory availability.

Secondary Substitute (Extended Temperature Capability):

The Mill-Max 116-93-628-41-006000 provides extended operating temperature range (-55°C to 125°C) and higher current rating (3 A) compared to the main part. However, this part is RoHS non-compliant and does not meet ROHS3 requirements. Selection of this part is appropriate only for applications where RoHS compliance is not mandated and extended temperature performance is required.

Tertiary Substitute (Limited Temperature Range):

The 3M 4828-6004-CP maintains ROHS3 compliance and UL94 V-0 flammability rating but operates only to -25°C minimum temperature, compared to -55°C for the main part and other substitutes. This part is suitable for applications with restricted low-temperature requirements.

Compliance Considerations:

All recommended substitutes except the Mill-Max part maintain ROHS3 compliance status. Applications subject to RoHS directives should utilize Assmann or 3M alternatives. All parts maintain MSL 1 (unlimited) moisture sensitivity rating and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can the Assmann A 28-LC-TR directly replace the TE Connectivity 2-641267-3?

A: Yes. Both parts share identical 28-position DIP configuration, 0.6" row spacing, 0.100" pitch, tin-plated phosphor bronze contacts, and 30mOhm contact resistance. The A 28-LC-TR is currently in active production with full ROHS3 compliance. The primary difference is frame type (open versus closed), which does not affect electrical or mechanical compatibility.

Q: What is the difference between the Assmann A 28-LC-TR and A 28-LC-TT?

A: Both parts are functionally identical 28-position DIP sockets from Assmann WSW Components with matching electrical specifications, contact materials, and operating temperature range (-55°C to 85°C). The designation difference reflects frame configuration: TR indicates one frame type and TT indicates another. Both are suitable substitutes for the obsolete TE Connectivity part.

Q: Why does the Mill-Max 116-93-628-41-006000 have different contact materials?

A: The Mill-Max part uses beryllium copper mating contacts with gold finish instead of phosphor bronze with tin finish. This material combination provides enhanced contact performance and extended operating temperature range to 125°C. However, the part is RoHS non-compliant and should be selected only when extended temperature capability is required and RoHS compliance is not mandated.

Q: Are there any PCB layout considerations when substituting these parts?

A: All substitute parts maintain identical 0.100" pitch and 0.6" row spacing, ensuring direct PCB footprint compatibility. Termination post length varies slightly (0.108" to 0.124"), which may affect solder joint formation on boards designed for the original 0.120" specification. Verify PCB pad depth and via placement for optimal solder joint quality.

Q: Which substitute part should be selected for RoHS-compliant applications?

A: The Assmann A 28-LC-TR, Assmann A 28-LC-TT, and 3M 4828-6004-CP all maintain ROHS3 compliance. The Assmann parts are preferred due to full -55°C to 85°C operating range. The 3M part is suitable only for applications with minimum operating temperature above -25°C.

Q: What is the significance of the "Closed Frame" versus "Open Frame" designation?

A: Frame type refers to the housing structure around the socket cavity. Closed frame provides additional mechanical support and environmental protection. Open frame reduces material usage and cost. Both configurations are mechanically and electrically compatible with standard 28-pin DIP integrated circuits. Selection depends on application mechanical requirements and cost considerations.

Q: Can the 3M 4828-6004-CP be used in applications requiring -55°C operation?

A: No. The 3M part operates only to -25°C minimum temperature. Applications requiring -55°C operation must utilize the Assmann A 28-LC-TR, Assmann A 28-LC-TT, or Mill-Max 116-93-628-41-006000.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts are supplied in tube packaging. The original TE Connectivity part packaging is not specified in available documentation. Tube packaging is standard for DIP socket distribution and is compatible with automated assembly processes.