TE Connectivity AMP Connectors 2-1571550-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 2-1571550-4 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, necessitating identification of active equivalent and substitute parts for ongoing production and maintenance applications. The socket accommodates 16-pin DIP integrated circuits with standard 0.100" (2.54mm) pitch configuration and operates across the industrial temperature range of -55°C to 125°C.

Key Parameters

Parameter	Value
Manufacturer Part Number	2-1571550-4
Manufacturer	TE Connectivity AMP Connectors
Category	Sockets for ICs, Transistors
Number of Positions	16 (2 x 8)
Type	DIP, 0.3" (7.62mm) 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
Housing Material	Polycyclohexylenedimethylene Terephthalate (PCT), Polyester
Product Status	Obsolete
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 2-1571550-4 is determined by strict alignment of the following critical parameters:

Primary Matching Criteria:

Number of Positions: 16 (2 x 8)
Type: DIP, 0.3" (7.62mm) 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 Range: -55°C ~ 125°C
Housing Material: Polycyclohexylenedimethylene Terephthalate (PCT), Polyester

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

Contact Finish Thickness - Mating (range: 10.0µin to 30.0µin)
Contact Finish - Post (Gold, Tin, or Tin-Lead)
Contact Material - Post (Beryllium Copper or Brass Alloy)
Frame Configuration (Closed Frame or Open Frame)
Termination Post Length (range: 0.108" to 0.146")
Features (standard socket or carrier configuration)

All identified substitute parts are manufactured by Mill-Max Manufacturing Corp. and maintain active product status with current inventory availability.

Parameter Comparison

Parameter	2-1571550-4 (Main)	210-43-316-41-001000	110-91-316-41-001000	115-93-316-41-001000	605-93-316-11-480000	612-93-316-41-001000	614-93-316-31-007000
Manufacturer	TE Connectivity	Mill-Max	Mill-Max	Mill-Max	Mill-Max	Mill-Max	Mill-Max
Number of Positions	16 (2 x 8)	16 (2 x 8)	16 (2 x 8)	16 (2 x 8)	16 (2 x 8)	16 (2 x 8)	16 (2 x 8)
Type	DIP, 0.3" (7.62mm)	DIP, 0.3" (7.62mm)	DIP, 0.3" (7.62mm)	DIP, 0.3" (7.62mm)	DIP, 0.3" (7.62mm)	DIP, 0.3" (7.62mm)	DIP, 0.3" (7.62mm)
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)
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness - Mating	25.0µin (0.63µm)	30.0µin (0.76µm)	10.0µin (0.25µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)
Contact Material - Mating	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Features	Closed Frame	Closed Frame	Open Frame	Open Frame	Carrier, Open Frame	Carrier, Open Frame	Carrier, Open Frame
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
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)
Contact Finish - Post	Gold	Tin	Tin-Lead	Tin-Lead	Tin-Lead	Tin-Lead	Tin-Lead
Contact Material - Post	Beryllium Copper	Brass Alloy	Brass Alloy	Brass Alloy	Brass Alloy	Brass Alloy	Brass Alloy
Housing Material	PCT, Polyester	PCT, Polyester	PCT, Polyester	PCT, Polyester	PCT, Polyester	PCT, Polyester	PCT, Polyester
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Termination Post Length	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.108" (2.74mm)	0.124" (3.15mm)	0.124" (3.15mm)	0.146" (3.71mm)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS Compliant	ROHS3 Compliant	RoHS non-compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Current Rating	Not specified	3 A	3 A	3 A	3 A	3 A	3 A

Engineering Selection Recommendations

Primary Recommendation: Mill-Max 210-43-316-41-001000

The Mill-Max 210-43-316-41-001000 is the preferred direct substitute for the obsolete TE Connectivity 2-1571550-4. This part maintains closed-frame architecture identical to the original design and achieves ROHS3 compliance, exceeding the RoHS compliance status of the original component. The 210-43 series provides enhanced contact finish thickness (30.0µin mating surface) compared to the original specification, supporting improved contact durability. Current inventory of 6,094 units ensures supply continuity for production applications.

Secondary Recommendations for RoHS3 Compliance:

The Mill-Max 605-93-316-11-480000 and 612-93-316-41-001000 are functionally equivalent alternatives with ROHS3 compliance certification. Both parts feature carrier and open-frame configurations with 3 A current rating capability. The 605-93 series is designated as a low-profile socket carrier variant, while the 612-93 series provides standard open-frame architecture. These options are suitable for applications where frame configuration flexibility is acceptable.

The Mill-Max 614-93-316-31-007000 offers extended termination post length (0.146" versus 0.125" standard), providing additional PCB penetration depth for applications requiring enhanced mechanical retention. This part maintains ROHS3 compliance and active product status with 996 units in current inventory.

Alternative for Legacy System Compatibility:

The Mill-Max 110-91-316-41-001000 and 115-93-316-41-001000 maintain open-frame configurations with RoHS non-compliant status. These parts are suitable only for legacy system maintenance where RoHS compliance is not mandated. The 110-91 series features minimal mating contact finish thickness (10.0µin), while the 115-93 series provides standard 30.0µin thickness with reduced termination post length (0.108").

Compliance Considerations:

For new production designs, selection should prioritize ROHS3-compliant alternatives: 210-43-316-41-001000, 605-93-316-11-480000, 612-93-316-41-001000, or 614-93-316-31-007000. RoHS non-compliant parts (110-91-316-41-001000 and 115-93-316-41-001000) are restricted to maintenance and repair of existing systems where regulatory exemptions apply.

Frequently Asked Questions (FAQ)

Q: Can the Mill-Max 210-43-316-41-001000 directly replace the TE Connectivity 2-1571550-4 without PCB redesign?

A: Yes. The 210-43-316-41-001000 maintains identical pitch specifications (0.100" mating, 0.100" post), row spacing (0.3"), termination post length (0.125"), and through-hole solder termination. The closed-frame design matches the original architecture. No PCB layout modifications are required.

Q: What is the functional difference between closed-frame and open-frame socket configurations?

A: Closed-frame sockets (2-1571550-4 and 210-43-316-41-001000) provide integrated housing that fully encloses the contact array, offering enhanced mechanical stability and reduced susceptibility to contamination. Open-frame variants (110-91, 115-93, 605-93, 612-93, 614-93 series) expose the contact structure, reducing material volume and cost while maintaining electrical performance. Both configurations support identical DIP package insertion and contact engagement.

Q: Are the Mill-Max substitute parts compatible with standard 16-pin DIP integrated circuits?

A: Yes. All substitute parts accommodate standard 16-pin DIP packages with 0.100" (2.54mm) pitch and 0.3" (7.62mm) row spacing. The beryllium copper mating contacts in all parts ensure reliable engagement with standard DIP lead geometry.

Q: What is the significance of contact finish thickness variation (10.0µin to 30.0µin)?

A: Contact finish thickness affects contact durability and wear resistance during mating cycles. The original specification of 25.0µin provides baseline performance. The 210-43, 115-93, 605-93, 612-93, and 614-93 series offer 30.0µin thickness, providing enhanced durability for high-cycle applications. The 110-91 series with 10.0µin thickness is suitable for applications with limited mating cycles.

Q: Why do substitute parts use Tin or Tin-Lead post finishes instead of Gold?

A: Post finish material does not affect DIP package insertion or electrical performance. Tin and Tin-Lead finishes on solder posts provide cost optimization while maintaining solderability and PCB connection reliability. The critical mating surface remains gold-plated in all substitute parts, ensuring consistent contact performance with DIP package leads.

Q: What is the difference between standard socket and carrier configurations?

A: Standard sockets (210-43, 110-91, 115-93 series) mount directly to the PCB with individual through-hole termination. Carrier configurations (605-93, 612-93, 614-93 series) integrate multiple socket positions within a single carrier structure, reducing assembly complexity for high-volume production. Both configurations provide identical electrical performance for single 16-position DIP sockets.

Q: Are RoHS non-compliant parts (110-91 and 115-93 series) suitable for new product development?

A: RoHS non-compliant parts are restricted to maintenance and repair of existing systems where regulatory exemptions apply. New product development must utilize ROHS3-compliant alternatives: 210-43-316-41-001000, 605-93-316-11-480000, 612-93-316-41-001000, or 614-93-316-31-007000.

Q: What is the impact of termination post length variation on PCB assembly?

A: Termination post length affects solder joint formation depth and mechanical retention. The standard 0.125" length (2-1571550-4, 210-43, 110-91) provides baseline PCB penetration. The 115-93 series with 0.108" length reduces penetration for thin PCB applications. The 605-93 and 612-93 series with 0.124" length provide minimal variation. The 614-93 series with 0.146" length offers enhanced mechanical retention for applications requiring maximum solder joint strength. PCB design must accommodate the selected post length specification.

Q: Is inventory availability a factor in substitute part selection?

A: Yes. Current inventory levels are: 210-43-316-41-001000 (6,094 units), 612-93-316-41-001000 (871 units), 614-93-316-31-007000 (996 units), 605-93-316-11-480000 (870 units), 115-93-316-41-001000 (1,135 units), and 110-91-316-41-001000 (911 units). The 210-43 series provides the highest inventory availability for sustained production requirements.

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