TE Connectivity 1571552-8 DIP Socket 24-Position Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1571552-8 is a 24-position DIP socket connector designed for through-hole mounting applications. This component features a 0.6" (15.24mm) row spacing with tin-plated beryllium copper mating contacts and copper posts. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility while offering improved availability and product status.

Key Parameters

Parameter	Value
Number of Positions	24 (2 x 12)
Row Spacing	0.6" (15.24mm)
Pitch - Mating	0.100" (2.54mm)
Pitch - Post	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Termination Post Length	0.125" (3.18mm)
Operating Temperature Range	-55°C ~ 105°C
Contact Material - Mating	Beryllium Copper
Contact Finish - Mating	Tin
Housing Material	Polycyclohexylenedimethylene Terephthalate (PCT), Polyester
Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1571552-8 is determined by strict adherence to the following critical parameters:

Mandatory Matching Parameters:

Number of Positions: 24 (2 x 12)
Row Spacing: 0.6" (15.24mm)
Pitch - Mating: 0.100" (2.54mm)
Pitch - Post: 0.100" (2.54mm)
Mounting Type: Through Hole
Termination: Solder
Termination Post Length: 0.125" (3.18mm)
Contact Material - Mating: Beryllium Copper
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations in Substitute Parts:

Contact Finish - Mating: Tin or Gold (both acceptable for DIP socket applications)
Contact Finish - Post: Tin, Tin-Lead, or Gold (post finish does not affect mating compatibility)
Housing Material: PCT Polyester or Polyamide (PA46) Nylon 4/6 Glass Filled (both provide structural equivalence)
Operating Temperature Range: Substitute parts rated -55°C ~ 125°C exceed the original -55°C ~ 105°C specification
Frame Type: Open Frame or Closed Frame (both accommodate standard DIP package insertion)
Product Status: Active substitutes are preferred over obsolete status

All substitute parts listed maintain the core electrical and mechanical interface required for direct replacement in DIP socket applications.

Parameter Comparison

Parameter	1571552-8 (TE)	110-91-624-41-001000 (Mill-Max)	110-93-624-41-001000 (Mill-Max)	110-93-624-41-801000 (Mill-Max)	210-93-624-41-001000 (Mill-Max)	24-6518-10 (Aries)	24-6518-10H (Aries)	24-6518-10T (Aries)	24-6518-11 (Aries)	24-6518-11H (Aries)
Manufacturer	TE Connectivity	Mill-Max	Mill-Max	Mill-Max	Mill-Max	Aries Electronics	Aries Electronics	Aries Electronics	Aries Electronics	Aries Electronics
Number of Positions	24 (2 x 12)	24 (2 x 12)	24 (2 x 12)	24 (2 x 12)	24 (2 x 12)	24 (2 x 12)	24 (2 x 12)	24 (2 x 12)	24 (2 x 12)	24 (2 x 12)
Row Spacing	0.6" (15.24mm)	0.6" (15.24mm)	0.6" (15.24mm)	0.6" (15.24mm)	0.6" (15.24mm)	0.6" (15.24mm)	0.6" (15.24mm)	0.6" (15.24mm)	0.6" (15.24mm)	0.6" (15.24mm)
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)	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)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Material - Mating	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper
Contact Finish - Mating	Tin	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish - Post	Tin	Tin-Lead	Tin-Lead	Tin-Lead	Tin-Lead	Tin	Tin	Tin	Gold	Gold
Mounting Type	Through Hole	Through Hole	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	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)	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	-55°C ~ 125°C	-55°C ~ 125°C	Not Specified	Not Specified	Not Specified	Not Specified	Not Specified
Housing Material	PCT Polyester	PCT Polyester	PCT Polyester	PCT Polyester	PCT Polyester	PA46 Nylon 4/6 Glass Filled	PA46 Nylon 4/6 Glass Filled	PA46 Nylon 4/6 Glass Filled	PA46 Nylon 4/6 Glass Filled	PA46 Nylon 4/6 Glass Filled
Flammability Rating	UL94 V-0	Not Specified	Not Specified	Not Specified	Not Specified	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	RoHS Non-Compliant	RoHS Non-Compliant	RoHS Non-Compliant	RoHS Non-Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active
Current Availability	837 Pcs	970 Pcs	1666 Pcs	886 Pcs	1375 Pcs	988 Pcs	1097 Pcs	902 Pcs	976 Pcs	688 Pcs

Engineering Selection Recommendations

Primary Substitutes (Aries Electronics Series 518):

The Aries Electronics 24-6518 series parts (24-6518-10, 24-6518-10H, 24-6518-10T, 24-6518-11, 24-6518-11H) are the preferred substitutes for the TE Connectivity 1571552-8. These components maintain all critical mechanical and electrical parameters while offering the following advantages:

Active product status with confirmed long-term availability
ROHS3 compliance exceeds the original RoHS compliance requirement
UL94 V-0 flammability rating matches the original specification
Gold-plated mating contacts provide enhanced corrosion resistance compared to tin plating
Polyamide housing material provides equivalent structural performance to PCT polyester

Secondary Substitutes (Mill-Max Series 110 and 210):

Mill-Max Manufacturing parts (110-91-624-41-001000, 110-93-624-41-001000, 110-93-624-41-801000, 210-93-624-41-001000) are functionally compatible substitutes with the following considerations:

Active product status with high inventory levels
Operating temperature range of -55°C ~ 125°C exceeds the original -55°C ~ 105°C specification
RoHS non-compliance status requires evaluation against application regulatory requirements
Flammability rating not specified; original UL94 V-0 rating not confirmed for these parts
Gold-plated mating contacts provide enhanced contact reliability

Compliance Considerations:

Applications requiring RoHS compliance should prioritize Aries Electronics substitutes (ROHS3 compliant) over Mill-Max alternatives (RoHS non-compliant). Applications requiring confirmed UL94 V-0 flammability certification should prioritize Aries Electronics parts, which explicitly maintain this rating.

Packaging Considerations:

Aries Electronics 24-6518-10 is supplied in tube packaging, while 24-6518-10H, 24-6518-10T, 24-6518-11, and 24-6518-11H are supplied in bulk packaging. Mill-Max parts are supplied in tube packaging. Packaging selection should align with assembly process requirements and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1571552-8 be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts maintain the critical mechanical and electrical parameters required for direct replacement: 24-position configuration, 0.6" row spacing, 0.100" pitch, through-hole solder termination, and 0.125" post length. Physical footprint and functional compatibility are identical.

Q: What is the difference between tin-plated and gold-plated mating contacts?

A: Both tin and gold finishes are acceptable for DIP socket mating contacts. Gold plating provides enhanced corrosion resistance and is preferred for applications with extended shelf life or harsh environmental exposure. Tin plating is suitable for standard applications with normal storage and operating conditions. The choice does not affect electrical performance in typical DIP socket applications.

Q: Why do some substitute parts have different housing materials (PCT polyester versus PA46 nylon)?

A: Both housing materials provide equivalent structural performance and thermal stability for DIP socket applications. PCT polyester and PA46 nylon 4/6 glass-filled materials both meet the mechanical requirements for 24-position socket retention and solder joint reliability. Material selection by manufacturers reflects manufacturing process optimization and does not affect functional compatibility.

Q: Are the Mill-Max parts with RoHS non-compliant status suitable for new designs?

A: RoHS compliance status depends on application regulatory requirements. If the application requires RoHS compliance (EU Directive 2011/65/EU or equivalent), Aries Electronics ROHS3-compliant parts are required. If RoHS compliance is not mandated, Mill-Max parts are functionally equivalent. Regulatory requirements should be confirmed before part selection.

Q: What is the significance of the operating temperature range difference between the original part (-55°C ~ 105°C) and substitute parts (-55°C ~ 125°C)?

A: The substitute parts have an extended upper operating temperature limit of 125°C compared to the original 105°C specification. This extended range provides additional thermal margin and is fully backward compatible. Applications operating within the original -55°C ~ 105°C range will function identically with substitute parts rated to 125°C.

Q: Does the presence of a decoupling capacitor feature in part 110-93-624-41-801000 affect compatibility?

A: The decoupling capacitor feature in 110-93-624-41-801000 is an integrated component that does not affect the socket's mechanical or electrical interface with standard DIP packages. This part remains fully compatible with applications that do not require the decoupling capacitor function. Applications requiring decoupling capacitor functionality will benefit from this integrated feature.

Q: What is the difference between open frame and closed frame socket designs?

A: Open frame sockets (TE 1571552-8, Aries 24-6518 series, Mill-Max 110 series) have exposed contact springs and are suitable for standard DIP package insertion. Closed frame sockets (Mill-Max 210 series) have a protective frame structure that provides additional mechanical support. Both designs accommodate standard DIP packages identically. Frame type selection should align with mechanical assembly requirements and handling procedures.

Q: Are the contact post finishes (tin, tin-lead, gold) interchangeable?

A: Yes. Contact post finishes do not affect the socket's mating interface with DIP package leads. Post finish selection reflects solder joint compatibility and PCB assembly process requirements. Tin and tin-lead finishes are standard for wave soldering and reflow processes. Gold-plated posts provide enhanced corrosion resistance during storage and handling. All post finishes are functionally equivalent for DIP socket applications.

Q: Which substitute part offers the best long-term availability?

A: Mill-Max 110-93-624-41-001000 and 210-93-624-41-001000 currently show the highest inventory levels (1666 and 1375 units respectively). However, all listed substitute parts maintain active product status with confirmed manufacturer support. For critical applications requiring guaranteed long-term supply, direct contact with manufacturers is recommended to confirm production roadmaps and lead times.

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