TE Connectivity AMP Connectors 3-1571586-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-1571586-2 is a 40-position DIP socket with 0.6" row spacing, gold-plated mating contacts, and through-hole solder termination. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing production and maintenance applications. The socket accommodates 40-pin DIP integrated circuits with standard 0.100" pitch and is suitable for applications requiring reliable IC interconnection across the industrial temperature range of -55°C to 105°C.

Key Parameters

Parameter	Value
Manufacturer Part Number	3-1571586-2
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)
Pitch - Post	0.100" (2.54mm)
Contact Finish - Mating	Gold
Contact Material - Mating	Beryllium Copper
Contact Material - Post	Copper
Mounting Type	Through Hole
Termination	Solder
Termination Post Length	0.125" (3.18mm)
Operating Temperature	-55°C ~ 105°C
Contact Resistance	10mOhm
Housing Material	Polycyclohexylenedimethylene Terephthalate (PCT), Polyester
Material Flammability Rating	UL94 V-0
Product Status	Obsolete
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 3-1571586-2 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Number of Positions: 40 (2 x 20)
Type: DIP with 0.6" (15.24mm) row spacing
Pitch - Mating: 0.100" (2.54mm)
Pitch - Post: 0.100" (2.54mm)
Contact Finish - Mating: Gold
Contact Material - Mating: Beryllium Copper
Mounting Type: Through Hole
Termination: Solder
Termination Post Length: 0.125" (3.18mm)
Features: Open Frame

Allowable Variations:

Contact Finish - Post: Gold or Tin
Contact Material - Post: Copper or Brass/Brass Alloy
Housing Material: PCT Polyester or Polyamide variants with or without glass fill
Operating Temperature: Equal to or exceeding -55°C to 105°C
Material Flammability Rating: UL94 V-0 or equivalent
Product Status: Active preferred; obsolete acceptable for legacy applications
RoHS Compliance: RoHS3 Compliant or RoHS Compliant

All identified substitute parts meet these criteria and are functionally interchangeable within the specified electrical and mechanical constraints.

Parameter Comparison

Parameter	3-1571586-2 (TE Connectivity)	110-43-640-41-001000 (Mill-Max)	110-83-640-41-001101 (Preci-Dip)	40-6518-10 (Aries)	ICA-640-SGT (Samtec)	40-6518-10M (Aries)
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)
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
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)
Pitch - Post	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	Gold
Contact Finish Thickness - Mating	25.0µin (0.63µm)	30.0µin (0.76µm)	29.5µin (0.75µm)	10.0µin (0.25µm)	30.0µin (0.76µm)	10.0µin (0.25µm)
Contact Material - Mating	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper
Contact Finish - Post	Gold	Tin	Tin	Tin	Tin	Tin
Contact Material - Post	Copper	Brass Alloy	Brass	Brass	Brass	Brass
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Termination Post Length	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)
Operating Temperature	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	Not Specified	-55°C ~ 125°C	Not Specified
Contact Resistance	10mOhm	Not Specified	10mOhm	Not Specified	10mOhm	Not Specified
Material Flammability Rating	UL94 V-0	Not Specified	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Substitutes (Highest Compatibility):

The following parts are classified as direct substitutes and provide full functional equivalence to the TE Connectivity 3-1571586-2:

Mill-Max Manufacturing Corp. 110-43-640-41-001000 - Active product status with extended operating temperature range (-55°C to 125°C), ROHS3 compliance, and 3A current rating. Tin-plated brass alloy posts provide alternative termination characteristics while maintaining electrical performance.
Preci-Dip 110-83-640-41-001101 - Active product status with UL94 V-0 flammability rating, 10mOhm contact resistance specification, and extended operating temperature range. Glass-filled polyester housing provides enhanced mechanical stability.
Samtec Inc. ICA-640-SGT - Active product status with UL94 V-0 flammability rating, 10mOhm contact resistance specification, and extended operating temperature range. Glass-filled polyester housing and 1A current rating.

Similar Substitutes (Functional Equivalence with Minor Variations):

Aries Electronics 40-6518-10 - Active product status with UL94 V-0 flammability rating and 3A current rating. Polyamide nylon housing with glass fill provides alternative material composition. Operating temperature not specified.
Aries Electronics 40-6518-10M - Active product status with UL94 V-0 flammability rating and 3A current rating. Polyamide nylon housing with glass fill. Operating temperature not specified.

All substitute parts maintain the critical electrical and mechanical parameters required for DIP socket functionality: 40-position configuration, 0.6" row spacing, 0.100" pitch, beryllium copper mating contacts with gold finish, through-hole solder termination, and open frame design. Selection among these alternatives should be based on packaging requirements, current rating needs, and operating temperature specifications for the target application.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters that determine if a part can substitute for the TE Connectivity 3-1571586-2?

A: The following parameters must match exactly: 40-position DIP configuration with 2 x 20 arrangement, 0.6" (15.24mm) row spacing, 0.100" (2.54mm) pitch for both mating and post contacts, gold-plated beryllium copper mating contacts, through-hole solder termination, 0.125" (3.18mm) post length, and open frame design. Contact finish and material on the post side may vary between gold/copper and tin/brass combinations without affecting functional compatibility.

Q: Why do some substitute parts have different operating temperature ranges?

A: The TE Connectivity 3-1571586-2 operates from -55°C to 105°C. Several substitute parts extend this range to -55°C to 125°C due to differences in housing material composition and thermal design. Parts with extended temperature ranges are fully compatible with the original specification and provide additional margin for demanding applications. Parts without specified operating temperature ranges are still functionally equivalent for the original -55°C to 105°C requirement.

Q: What is the difference between the contact finish variations (gold vs. tin post plating)?

A: The original TE Connectivity part features gold-plated copper posts. Substitute parts with tin-plated brass or brass alloy posts provide equivalent electrical performance and solder joint reliability. Tin plating is a standard alternative finish that meets industry standards for through-hole socket termination. The choice between gold and tin post finishes does not affect functional compatibility or electrical performance in standard PCB assembly processes.

Q: Are all substitute parts RoHS compliant?

A: The original TE Connectivity 3-1571586-2 is RoHS Compliant. All identified substitute parts are ROHS3 Compliant, which represents a more recent and stringent compliance standard. ROHS3 compliance includes the original RoHS requirements and additional restrictions on certain substances. All substitute parts meet or exceed the original RoHS compliance level.

Q: What packaging options are available for these substitute parts?

A: The original part does not specify packaging. Substitute parts are available in three packaging formats: Tube (Mill-Max 110-43-640-41-001000 and Samtec ICA-640-SGT) and Bulk (Preci-Dip 110-83-640-41-001101, Aries 40-6518-10, and Aries 40-6518-10M). Packaging selection depends on production volume requirements and inventory management practices. All packaging formats contain the same functional component.

Q: Can I use a substitute part with a higher current rating than the original?

A: Yes. The original TE Connectivity 3-1571586-2 does not specify a current rating. Substitute parts with specified current ratings (1A or 3A) are fully compatible and provide additional performance margin. Higher current ratings indicate enhanced contact design and material selection, which are beneficial for applications requiring reliable high-current switching or signal integrity.

Q: What is the significance of the contact resistance specification?

A: The original TE Connectivity 3-1571586-2 specifies 10mOhm contact resistance. Preci-Dip 110-83-640-41-001101 and Samtec ICA-640-SGT also specify 10mOhm contact resistance, ensuring equivalent electrical performance. Substitute parts without specified contact resistance (Mill-Max, Aries parts) are still functionally equivalent; the absence of specification does not indicate inferior performance but rather different manufacturer documentation practices.

Q: Are there any housing material differences that affect performance?

A: The original part uses polycyclohexylenedimethylene terephthalate (PCT) polyester. Substitute parts use PCT polyester, polyamide (PA46) nylon with glass fill, or polyester with glass fill. Glass-filled variants provide enhanced mechanical strength and thermal stability. All housing materials meet UL94 V-0 flammability requirements and are suitable for standard PCB assembly and operating environments. Material selection does not affect electrical performance or compatibility.

Q: Why is the original part listed as obsolete?

A: The TE Connectivity 3-1571586-2 is classified as obsolete, indicating it is no longer in active production. All identified substitute parts are active products from established manufacturers (Mill-Max, Preci-Dip, Aries Electronics, Samtec), ensuring ongoing availability and supply chain reliability for new designs and production requirements.

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