TE Connectivity AMP Connectors 2-641600-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 2-641600-4 is a 16-position DIP socket with 0.3" (7.62mm) row spacing, gold-plated contacts, and through-hole solder termination. This component is classified as obsolete, indicating that the original manufacturer has discontinued production. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production requirements for applications utilizing this socket configuration.

Key Parameters

Parameter	Value
Manufacturer Part Number	2-641600-4
Manufacturer	TE Connectivity AMP Connectors
Category	Sockets for ICs, Transistors
Number of Positions	16 (2 x 8)
Row Spacing	0.3" (7.62mm)
Pitch - Mating	0.100" (2.54mm)
Contact Finish - Mating	Gold
Mounting Type	Through Hole
Termination	Solder
Operating Temperature Range	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
Contact Resistance	30mOhm
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 2-641600-4 is determined by the following critical parameters that must remain consistent across equivalent parts:

Mandatory Matching Parameters:

Number of Positions: 16 (2 x 8)
Row Spacing: 0.3" (7.62mm)
Pitch - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole
Termination: Solder

Allowable Variations:

Contact Finish - Mating: Gold or Tin finishes are functionally compatible for DIP socket applications
Housing Material: Thermoplastic variations (Glass Filled Polyester, Glass Filled Polybutylene Terephthalate) maintain structural integrity
Operating Temperature Range: Substitute parts with reduced temperature ranges (-25°C ~ 85°C) are acceptable for applications not requiring the full -55°C ~ 125°C specification
Product Status: Active substitute parts are preferred over obsolete originals for long-term availability

All three substitute parts (4816-3000-CP, 4816-3004-CP, and A 16-LC-TT) meet the mandatory matching parameters and are therefore valid alternatives for the 2-641600-4.

Parameter Comparison

Parameter	2-641600-4 (TE Connectivity)	4816-3000-CP (3M)	4816-3004-CP (3M)	A 16-LC-TT (Assmann WSW)
Manufacturer	TE Connectivity AMP Connectors	3M	3M	Assmann WSW Components
Number of Positions	16 (2 x 8)	16 (2 x 8)	16 (2 x 8)	16 (2 x 8)
Row Spacing	0.3" (7.62mm)	0.3" (7.62mm)	0.3" (7.62mm)	0.3" (7.62mm)
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Finish - Mating	Gold	Tin	Tin	Tin
Contact Material - Mating	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder
Operating Temperature Range	-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
Contact Resistance	30mOhm	Not specified	Not specified	30mOhm
Current Rating	Not specified	1 A	1 A	1 A
Product Status	Obsolete	Active	Active	Active
RoHS Status	Not applicable	RoHS Compliant	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For applications requiring the full -55°C ~ 125°C operating temperature range:

The Assmann WSW Components A 16-LC-TT is the appropriate substitute. This part maintains the lower temperature limit of -55°C, matching the original specification. The A 16-LC-TT is ROHS3 compliant and carries active product status, ensuring long-term availability and regulatory compliance.

For applications operating within -25°C ~ 85°C temperature range:

Both 3M 4816-3000-CP and 4816-3004-CP are suitable substitutes. These parts are RoHS Compliant with active product status. The 4816-3004-CP offers higher inventory availability (14,068 pieces) compared to 4816-3000-CP (1,117 pieces), making it the preferred choice for volume requirements.

Contact finish consideration:

The original 2-641600-4 features gold-plated mating contacts, while all substitute parts utilize tin plating. Tin-plated contacts are functionally equivalent for standard DIP socket applications. Applications with specific corrosion resistance requirements in harsh environments should evaluate the tin finish against original gold specifications.

Compliance and availability:

All three substitute parts carry active product status and meet UL94 V-0 flammability requirements. The original 2-641600-4 is obsolete; transitioning to an active substitute part ensures continued component availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can the 3M 4816-3000-CP or 4816-3004-CP directly replace the TE Connectivity 2-641600-4?

A: Yes, both 3M parts are direct mechanical and electrical substitutes. They share identical 16-position DIP configuration, 0.3" row spacing, 0.100" mating pitch, through-hole solder termination, and UL94 V-0 flammability rating. The primary difference is the contact finish (tin versus gold) and reduced operating temperature range (-25°C ~ 85°C versus -55°C ~ 125°C). For applications not requiring the extended low-temperature specification, these parts are fully compatible.

Q: What is the difference between 4816-3000-CP and 4816-3004-CP?

A: Both parts are electrically and mechanically identical 16-position DIP sockets from the 3M 4800 series with tin-plated contacts. The primary distinction is inventory availability: 4816-3004-CP has significantly higher stock (14,068 pieces) compared to 4816-3000-CP (1,117 pieces). For production requirements, 4816-3004-CP is the preferred selection due to superior availability.

Q: Why does the Assmann WSW A 16-LC-TT have a lower upper temperature limit (-55°C ~ 85°C) compared to the original part (-55°C ~ 125°C)?

A: The A 16-LC-TT utilizes polybutylene terephthalate (PBT) housing material, which has a lower thermal rating than the glass-filled thermoplastic used in the original TE Connectivity part. The -55°C lower limit is maintained, making this part suitable for applications requiring extended low-temperature operation. Applications requiring operation above 85°C should retain the original specification or evaluate alternative solutions.

Q: Are tin-plated contacts equivalent to gold-plated contacts for DIP socket applications?

A: Tin-plated contacts are functionally equivalent to gold-plated contacts for standard DIP socket applications. Both finishes provide adequate electrical conductivity and contact reliability. Gold plating offers superior corrosion resistance in harsh or high-humidity environments. For applications in standard industrial conditions, tin plating is fully acceptable and is the industry standard for modern DIP socket designs.

Q: What is the significance of the RoHS compliance status?

A: The 3M parts (4816-3000-CP and 4816-3004-CP) are RoHS Compliant, and the Assmann WSW part (A 16-LC-TT) is ROHS3 Compliant. This indicates compliance with the Restriction of Hazardous Substances directive, eliminating lead and other restricted materials. The original TE Connectivity 2-641600-4 lists RoHS status as "Not applicable," reflecting its obsolete status predating modern compliance requirements. For new designs and manufacturing in regulated markets, RoHS-compliant substitutes are required.

Q: Can I use these substitute parts in existing PCB designs without modification?

A: Yes. All substitute parts maintain identical mechanical footprints, pin configurations, and through-hole solder pad spacing as the original 2-641600-4. No PCB redesign or layout modification is required. Direct component substitution on existing boards is supported.

Q: Which substitute part should I select for new production designs?

A: For new designs, the Assmann WSW A 16-LC-TT is recommended if the application requires the full -55°C ~ 125°C operating range. For applications within -25°C ~ 85°C, the 3M 4816-3004-CP is preferred due to active product status, RoHS compliance, and superior inventory availability. Both parts ensure long-term supply chain stability and regulatory compliance.

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