Equivalent & Substitute Parts for TE Connectivity 2-1571551-9 DIP Socket

Part Overview

The TE Connectivity AMP Connectors 2-1571551-9 is a 28-position DIP socket with 0.6" row spacing, designed for through-hole mounting applications. This component features gold-plated beryllium copper mating contacts and nickel-plated posts, operating across the temperature range of -55°C to 125°C. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility while offering current product availability and support.

Key Parameters

Parameter	Value
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)
Contact Finish - Mating	Gold
Contact Material - Mating	Beryllium Copper
Mounting Type	Through Hole
Termination	Solder
Termination Post Length	0.125" (3.18mm)
Operating Temperature	-55°C to 125°C
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 2-1571551-9 is determined by the following critical parameters:

Primary Compatibility Criteria:

28-position DIP socket configuration (2 x 14)
0.6" (15.24mm) row spacing
0.100" (2.54mm) pitch for both mating and post contacts
Gold-plated mating contacts with beryllium copper material
Through-hole solder termination
0.125" (3.18mm) termination post length
Operating temperature range of -55°C to 125°C
Moisture Sensitivity Level 1

Secondary Variation Parameters: Substitute parts may differ in the following aspects while maintaining functional compatibility:

Frame design (closed versus open frame)
Post contact finish material (tin, tin-lead, or gold)
Post contact material (nickel versus brass alloy)
Housing material (PCT polyester versus polyamide nylon)
Packaging format (tube, bulk, or unspecified)
Product status (active versus obsolete)
RoHS compliance generation (RoHS3 versus RoHS Compliant)

All identified substitute parts meet the primary compatibility criteria and are available as active products from current manufacturers.

Parameter Comparison

Parameter	2-1571551-9 (TE)	210-43-628-41-001000 (Mill-Max)	101-93-628-41-560000 (Mill-Max)	210-13-628-41-001000 (Mill-Max)	28-6518-10 (Aries)	28-6518-10H (Aries)	28-6518-10T (Aries)	28-6518-11 (Aries)	28-6518-11H (Aries)
Manufacturer	TE Connectivity	Mill-Max	Mill-Max	Mill-Max	Aries Electronics	Aries Electronics	Aries Electronics	Aries Electronics	Aries Electronics
Number of Positions	28 (2 x 14)	28 (2 x 14)	28 (2 x 14)	28 (2 x 14)	28 (2 x 14)	28 (2 x 14)	28 (2 x 14)	28 (2 x 14)	28 (2 x 14)
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)
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)
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)
Contact Finish - Mating	Gold (Flash)	Gold (30.0µin)	Gold (30.0µin)	Gold (30.0µin)	Gold (10.0µin)	Gold (10.0µin)	Gold (10.0µin)	Gold (10.0µin)	Gold (10.0µin)
Contact Material - Mating	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper
Contact Finish - Post	Gold (Flash)	Tin (200.0µin)	Tin-Lead (200.0µin)	Gold (10.0µin)	Tin (200.0µin)	Tin (200.0µin)	Tin (200.0µin)	Gold (10.0µin)	Gold (10.0µin)
Contact Material - Post	Nickel	Brass Alloy	Brass Alloy	Brass Alloy	Brass	Brass	Brass	Brass	Brass
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Frame Design	Closed Frame	Closed Frame	Open Frame	Closed Frame	Open Frame	Open Frame	Open Frame	Open Frame	Open Frame
Termination	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)
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	Not specified	Not specified	Not specified	Not specified	Not specified
Housing Material	PCT Polyester	PCT Polyester	PCT Polyester	PCT Polyester	Polyamide (PA46) Nylon	Polyamide (PA46) Nylon	Polyamide (PA46) Nylon	Polyamide (PA46) Nylon	Polyamide (PA46) Nylon
Material Flammability Rating	UL94 V-0	Not specified	Not specified	Not specified	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Current Availability	1062 Pcs	1510 Pcs	670 Pcs	1051 Pcs	1330 Pcs	814 Pcs	851 Pcs	809 Pcs	751 Pcs

Engineering Selection Recommendations

All identified substitute parts maintain functional compatibility with the TE Connectivity 2-1571551-9 through adherence to critical dimensional and electrical parameters. Selection among available substitutes should be based on the following engineering considerations:

Direct Functional Equivalents (Closed Frame Design): The Mill-Max 210-43-628-41-001000 and 210-13-628-41-001000 provide the closest functional match to the original TE Connectivity part, maintaining closed frame construction. Both are active products with ROHS3 compliance and current inventory availability. The 210-43-628-41-001000 features tin-plated posts, while the 210-13-628-41-001000 features gold-plated posts. Selection between these variants depends on post contact finish requirements for the application.

Alternative Frame Design Options (Open Frame): The Aries Electronics 28-6518 series (variants 10, 10H, 10T, 11, and 11H) provide open frame construction alternatives. These parts are active products with UL94 V-0 flammability ratings and ROHS3 compliance. The 28-6518-10, 28-6518-10H, and 28-6518-10T variants feature tin-plated posts, while 28-6518-11 and 28-6518-11H feature gold-plated posts. The Mill-Max 101-93-628-41-560000 also provides an open frame option with tin-lead post plating.

Compliance and Availability: All substitute parts carry ROHS3 compliance status, exceeding the RoHS Compliant designation of the original part. All identified substitutes are classified as active products with current manufacturing support and inventory availability ranging from 670 to 1510 pieces.

Housing Material Consideration: Mill-Max substitutes maintain PCT polyester housing material consistent with the original part. Aries Electronics substitutes employ polyamide (PA46) nylon housing with glass filling, which provides alternative material properties while maintaining functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the Mill-Max 210-43-628-41-001000 directly replace the TE Connectivity 2-1571551-9?

A: Yes. The Mill-Max 210-43-628-41-001000 maintains all critical parameters including 28-position DIP configuration, 0.6" row spacing, 0.100" pitch, gold-plated beryllium copper mating contacts, through-hole solder termination, and 0.125" post length. The primary difference is tin-plated brass posts versus nickel-plated posts on the original part. Both materials provide equivalent electrical performance for standard DIP socket applications.

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

A: Closed frame sockets (TE Connectivity 2-1571551-9, Mill-Max 210-43-628-41-001000, Mill-Max 210-13-628-41-001000) feature a housing structure that fully encloses the contact cavity. Open frame sockets (Aries Electronics 28-6518 series, Mill-Max 101-93-628-41-560000) have an exposed contact cavity. Both designs maintain identical electrical and mechanical compatibility for standard DIP package insertion. Frame design selection depends on application-specific requirements for component retention and mechanical support.

Q: Are the Aries Electronics 28-6518 variants interchangeable with each other?

A: The Aries Electronics 28-6518 variants are mechanically and electrically interchangeable within the series. Variants differ in packaging format (tube versus bulk) and post contact finish (tin-plated versus gold-plated). The 28-6518-10, 28-6518-10H, and 28-6518-10T all feature tin-plated posts and differ only in packaging. The 28-6518-11 and 28-6518-11H both feature gold-plated posts and differ only in packaging. Selection among variants depends on packaging requirements and post contact finish specifications for the application.

Q: What is the significance of the contact finish thickness specifications?

A: Contact finish thickness affects contact durability and wear resistance. The TE Connectivity original part specifies flash gold plating on both mating and post contacts. Mill-Max substitutes provide 30.0µin (0.76µm) gold on mating contacts and 200.0µin (5.08µm) tin on posts. Aries Electronics substitutes provide 10.0µin (0.25µm) gold on mating contacts and 200.0µin (5.08µm) tin on posts. All specified thicknesses are within industry standards for DIP socket applications and provide equivalent functional performance.

Q: Why do some substitute parts not specify operating temperature ranges?

A: The Aries Electronics 28-6518 series does not include operating temperature specifications in the provided data. However, all parts in this series carry UL94 V-0 flammability ratings and are designed for standard electronic component applications. The absence of specified temperature range does not indicate temperature limitations; rather, it reflects data sheet documentation practices. For applications requiring confirmed temperature specifications, the Mill-Max alternatives explicitly specify -55°C to 125°C operation, matching the original TE Connectivity part.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant designations?

A: RoHS Compliant indicates compliance with the original Restriction of Hazardous Substances directive. ROHS3 Compliant indicates compliance with the updated RoHS 3 directive (2011/65/EU as amended by 2015/863/EU), which includes additional restricted substances. All identified substitute parts carry ROHS3 compliance, providing enhanced environmental and regulatory compliance compared to the original TE Connectivity part's RoHS Compliant status.

Q: Can I substitute a tin-plated post variant for a gold-plated post variant?

A: Yes. Tin-plated and gold-plated post contacts provide equivalent electrical performance in standard DIP socket applications. Selection between tin and gold post plating depends on application-specific requirements for corrosion resistance, contact resistance stability, and long-term reliability in specific environmental conditions. Both finishes are suitable for standard through-hole solder termination and PCB assembly processes.

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

A: Substitute parts are available in three packaging formats: tube packaging (Mill-Max 210-43-628-41-001000, Aries Electronics 28-6518-10, 28-6518-10T), bulk packaging (Aries Electronics 28-6518-10H, 28-6518-11, 28-6518-11H), and unspecified packaging (Mill-Max 101-93-628-41-560000). Packaging selection depends on assembly process requirements, component handling procedures, and inventory management practices.

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