Request Quote
(Ships tomorrow)
TE Connectivity 2-641606-2 DIP Socket 40-Position Equivalent & Substitute Parts
Part Overview
The TE Connectivity 2-641606-2 is a 40-position DIP socket with 0.6" row spacing, gold-plated beryllium copper contacts, and through-hole solder termination. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing production and repair applications. The socket accommodates 40-pin DIP integrated circuits with 0.100" pitch mating contacts and operates across the -55°C to 125°C temperature range.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 2-641606-2 |
| Manufacturer | TE Connectivity AMP Connectors |
| Category | Sockets for ICs, Transistors |
| Number of Positions | 40 (2 x 20) |
| Type | DIP, 0.6" (15.24mm) Row Spacing |
| Pitch - Mating | 0.100" (2.54mm) |
| Contact Finish - Mating | Gold |
| Contact Material - Mating | Beryllium Copper |
| Mounting Type | Through Hole |
| Termination | Solder |
| Operating Temperature | -55°C ~ 125°C |
| Material Flammability Rating | UL94 V-0 |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the TE Connectivity 2-641606-2 is determined by the following critical parameters:
Primary Matching Criteria:
- Number of Positions: 40 (2 x 20)
- Type: DIP with 0.6" (15.24mm) Row Spacing
- Pitch - Mating: 0.100" (2.54mm)
- Mounting Type: Through Hole
- Termination: Solder
Secondary Compatibility Factors:
- Operating Temperature Range: Minimum -55°C, Maximum 125°C
- Contact Material - Mating: Beryllium Copper or Phosphor Bronze
- Contact Finish - Mating: Gold or Tin
- Material Flammability Rating: UL94 V-0
Parts are grouped into two categories: direct equivalents (identical electrical and mechanical specifications with active product status) and functional substitutes (compatible pin configuration and pitch with acceptable parameter variations).
Parameter Comparison
| Parameter | 2-641606-2 (Main) | 1-1825109-3 (Direct Equivalent) | 116-93-640-41-006000 (Substitute) | 116-41-640-41-006000 (Substitute) | 116-91-640-41-006000 (Substitute) | 4840-6000-CP (Substitute) | 4840-6004-CP (Substitute) | A 40-LC-TR (Substitute) |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | TE Connectivity | TE Connectivity | Mill-Max | Mill-Max | Mill-Max | 3M | 3M | Assmann WSW |
| Number of Positions | 40 (2 x 20) | 40 (2 x 20) | 40 (2 x 20) | 40 (2 x 20) | 40 (2 x 20) | 40 (2 x 20) | 40 (2 x 20) | 40 (2 x 20) |
| Type | DIP, 0.6" Row Spacing | DIP, 0.6" Row Spacing | DIP, 0.6" Row Spacing | DIP, 0.6" Row Spacing | DIP, 0.6" Row Spacing | DIP, 0.6" Row Spacing | DIP, 0.6" Row Spacing | DIP, 0.6" Row Spacing |
| Pitch - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Contact Finish - Mating | Gold | Gold | Gold | Gold | Gold | Tin | Tin | Tin |
| Contact Material - Mating | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Phosphor Bronze | Phosphor Bronze | Phosphor Bronze |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Termination | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -25°C ~ 85°C | -25°C ~ 85°C | -55°C ~ 85°C |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active |
| RoHS Status | Not applicable | ROHS3 Compliant | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Direct Equivalent (Recommended Primary Replacement):
The TE Connectivity 1-1825109-3 is the direct equivalent to the obsolete 2-641606-2. This part maintains identical electrical and mechanical specifications, including 40-position DIP configuration, 0.6" row spacing, 0.100" mating pitch, gold-plated beryllium copper contacts, and -55°C to 125°C operating temperature range. The 1-1825109-3 carries active product status and ROHS3 compliance, making it the preferred selection for direct replacement in new designs and production continuity.
Gold-Plated Alternatives (Mill-Max Series 116):
The Mill-Max parts 116-93-640-41-006000, 116-41-640-41-006000, and 116-91-640-41-006000 provide gold-plated contact finishes with beryllium copper mating contacts, maintaining compatibility with the original specification. These parts feature elevated open frame construction and are ROHS3 compliant. The 116-93-640-41-006000 and 116-41-640-41-006000 are active products suitable for applications requiring gold contact finishes. The 116-91-640-41-006000 uses tin-lead post finish and is also active.
Tin-Plated Alternatives (3M Series 4800 and Assmann A 40-LC-TR):
The 3M 4840-6000-CP and 4840-6004-CP sockets provide tin-plated contacts with phosphor bronze material and are ROHS3 compliant. These parts operate within -25°C to 85°C temperature range, which is narrower than the original specification. The Assmann A 40-LC-TR offers tin-plated phosphor bronze contacts with -55°C to 85°C operating range and ROHS3 compliance. Tin-plated alternatives are suitable for applications where the reduced operating temperature range is acceptable and cost optimization is a consideration.
Compliance Considerations:
All substitute parts carry ROHS3 compliance or are ROHS non-compliant (116-93-640-41-006000), ensuring regulatory alignment with modern manufacturing standards. The original 2-641606-2 carries "Not applicable" RoHS status due to its obsolete classification. All parts maintain UL94 V-0 flammability rating and MSL 1 moisture sensitivity level.
Frequently Asked Questions (FAQ)
Q: Can the TE Connectivity 1-1825109-3 be used as a direct replacement for the 2-641606-2?
A: Yes. The 1-1825109-3 is a direct equivalent with identical pin count (40), row spacing (0.6"), mating pitch (0.100"), contact finish (gold), contact material (beryllium copper), operating temperature range (-55°C to 125°C), and flammability rating (UL94 V-0). The primary difference is active product status and ROHS3 compliance.
Q: What is the difference between gold-plated and tin-plated DIP sockets?
A: Contact finish affects electrical performance and environmental resistance. Gold-plated contacts (2-641606-2, 1-1825109-3, Mill-Max 116 series) provide superior corrosion resistance and lower contact resistance. Tin-plated contacts (3M 4840 series, Assmann A 40-LC-TR) offer cost advantages but reduced corrosion resistance. Both finishes are suitable for standard through-hole applications.
Q: Are the Mill-Max 116 series sockets compatible with the original TE Connectivity socket?
A: The Mill-Max 116-93-640-41-006000, 116-41-640-41-006000, and 116-91-640-41-006000 are mechanically and electrically compatible. All maintain 40-position DIP configuration, 0.6" row spacing, and 0.100" mating pitch. The primary differences are elevated frame construction and tin or tin-lead post finishes versus the original gold post finish.
Q: What is the significance of the operating temperature range difference between parts?
A: The original 2-641606-2 and direct equivalent 1-1825109-3 operate from -55°C to 125°C. The 3M 4840 series operates from -25°C to 85°C, representing a narrower range. The Assmann A 40-LC-TR operates from -55°C to 85°C. Selection depends on application temperature requirements. Applications requiring full -55°C to 125°C operation must use the TE Connectivity 1-1825109-3 or equivalent.
Q: What does "elevated frame" construction mean in the Mill-Max parts?
A: Elevated frame construction raises the socket body above the PCB surface, providing additional clearance for component placement and solder flow. This feature does not affect electrical compatibility but may impact PCB layout considerations.
Q: Are all substitute parts ROHS compliant?
A: The TE Connectivity 1-1825109-3, Mill-Max 116-41-640-41-006000, Mill-Max 116-91-640-41-006000, 3M 4840-6000-CP, 3M 4840-6004-CP, and Assmann A 40-LC-TR are ROHS3 compliant. The Mill-Max 116-93-640-41-006000 is RoHS non-compliant. Compliance requirements should be verified against application specifications.
Q: What is the contact resistance specification for these sockets?
A: The original 2-641606-2 specifies 30mOhm contact resistance. The TE Connectivity 1-1825109-3 maintains this specification. Mill-Max 116 series parts specify 10mOhm (116-41, 116-91) or unspecified (116-93). The Assmann A 40-LC-TR specifies 30mOhm. The 3M 4840 series does not provide contact resistance specifications.
Q: Can these sockets be used interchangeably in existing PCB designs?
A: Mechanical and electrical compatibility exists across all listed parts for the 40-pin DIP socket function. However, elevated frame construction in Mill-Max parts may require PCB layout verification. Solder pad spacing and hole diameter compatibility should be confirmed before implementation. The TE Connectivity 1-1825109-3 provides the highest compatibility with the original design.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts