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TE Connectivity AMP Connectors 1571541-1 PLCC Socket Equivalent & Substitute Parts
Part Overview
The TE Connectivity AMP Connectors 1571541-1 is a 44-position PLCC socket designed for through-hole mounting applications. This component features a closed frame design with tin-plated copper alloy contacts and polyphenylene sulfide housing. The part is classified as obsolete, making identification of equivalent substitute components necessary for ongoing design support, maintenance, and production continuity. Substitute parts must maintain electrical and mechanical compatibility while meeting the same performance specifications and regulatory requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Type | PLCC Socket |
| Number of Positions | 44 (4 x 11) |
| Pitch - Mating | 0.100" (2.54mm) |
| Pitch - Post | 0.100" (2.54mm) |
| Contact Finish - Mating | Tin |
| Contact Finish - Post | Tin |
| Mounting Type | Through Hole |
| Termination | Solder |
| Features | Closed Frame |
| Current Rating | 1 A |
| Contact Resistance | 30mOhm |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the TE Connectivity 1571541-1 with the Mill-Max Manufacturing 940-44-044-24-000000 is based on strict equivalence of the following critical parameters:
Electrical Compatibility:
- Identical 44-position PLCC socket configuration (4 x 11 grid)
- Matching pitch specifications: 0.100" (2.54mm) for both mating and post positions
- Equivalent current rating of 1 A
- Identical contact resistance of 30mOhm
- Tin plating on both mating and post contacts
Mechanical Compatibility:
- Through-hole mounting type for PCB integration
- Closed frame design
- Solder termination method
- UL94 V-0 flammability rating
Regulatory Compliance:
- ROHS3 compliance maintained
- Moisture Sensitivity Level 1 (Unlimited)
- REACH Unaffected status
- EAR99 ECCN classification
The substitute part differs in contact material composition (beryllium copper mating contacts versus copper alloy; brass alloy posts versus copper alloy posts), housing material (PCT polyester versus polyphenylene sulfide), and operating temperature specification (−55°C to 125°C versus unspecified). These differences do not affect functional substitution for standard PLCC socket applications.
Parameter Comparison
| Parameter | TE Connectivity 1571541-1 | Mill-Max 940-44-044-24-000000 |
|---|---|---|
| Manufacturer | TE Connectivity AMP Connectors | Mill-Max Manufacturing Corp. |
| Type | PLCC Socket | PLCC Socket |
| Number of Positions | 44 (4 x 11) | 44 (4 x 11) |
| Pitch - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Pitch - Post | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Contact Finish - Mating | Tin | Tin |
| Contact Finish - Post | Tin | Tin |
| Mounting Type | Through Hole | Through Hole |
| Termination | Solder | Solder |
| Features | Closed Frame | Closed Frame |
| Current Rating | 1 A | 1 A |
| Contact Resistance | 30mOhm | 30mOhm |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The Mill-Max Manufacturing 940-44-044-24-000000 is a direct functional substitute for the obsolete TE Connectivity 1571541-1. Both components meet identical electrical specifications, mechanical requirements, and regulatory compliance standards. The substitute part maintains ROHS3 compliance and UL94 V-0 flammability certification, ensuring compatibility with current manufacturing and environmental standards.
The primary advantage of selecting the Mill-Max substitute is active product status, ensuring availability for new production runs and ongoing supply chain support. The TE Connectivity original part, classified as obsolete, presents supply constraints and long-term availability risks.
Both components are suitable for direct PCB integration in through-hole PLCC socket applications requiring 44-position connectivity with 0.100" pitch spacing. The electrical performance characteristics—current rating, contact resistance, and tin plating specifications—are equivalent between the two parts.
Frequently Asked Questions (FAQ)
Q: Can the Mill-Max 940-44-044-24-000000 be used as a direct replacement for the TE Connectivity 1571541-1 in existing designs?
A: Yes. Both components share identical electrical specifications (44 positions, 0.100" pitch, 1 A current rating, 30mOhm contact resistance), mechanical configuration (through-hole mounting, closed frame, solder termination), and regulatory compliance (ROHS3, UL94 V-0). The components are mechanically and electrically interchangeable.
Q: What are the differences between these two PLCC socket parts?
A: The primary differences are contact material composition (beryllium copper versus copper alloy for mating contacts; brass alloy versus copper alloy for posts), housing material (PCT polyester versus polyphenylene sulfide), and operating temperature specification (−55°C to 125°C versus unspecified for the original). These differences do not affect functional compatibility for standard PLCC socket applications.
Q: Why is the TE Connectivity 1571541-1 classified as obsolete?
A: Product obsolescence is determined by manufacturer discontinuation. The TE Connectivity part is no longer in active production. The Mill-Max equivalent remains in active production status, providing continued availability and supply chain support.
Q: Are there packaging differences between these parts?
A: Yes. The TE Connectivity 1571541-1 packaging specification is not provided. The Mill-Max 940-44-044-24-000000 is supplied in tube packaging. Verify packaging requirements for your specific procurement and assembly processes.
Q: Do both parts meet the same regulatory and compliance standards?
A: Yes. Both components are ROHS3 compliant, REACH unaffected, and carry UL94 V-0 flammability ratings. Both have Moisture Sensitivity Level 1 (Unlimited) and EAR99 ECCN classification.
Q: What is the contact resistance specification for both parts?
A: Both the TE Connectivity 1571541-1 and Mill-Max 940-44-044-24-000000 specify 30mOhm contact resistance, ensuring equivalent electrical performance in circuit applications.
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