TE Connectivity AMP Connectors 3-50871-0 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-50871-0 is a pin receptacle connector terminal designed for 0.042" to 0.049" (1.07mm to 1.24mm) pin diameters with solder termination and no tail configuration. This component is classified as obsolete, indicating discontinuation from active manufacturing. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this terminal type.

Substiute Parts

3-50871-0

TE Connectivity AMP ConnectorsIn Stock: 9973-50871-0 Datasheet

Current PartRFQ

5050871-8

TE Connectivity AMP ConnectorsIn Stock: 476565050871-8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 3-50871-0 terminal is determined by strict equivalence across the following critical parameters:

Pin Acceptance Compatibility: The substitute part must accept pin diameters within the range of 0.042" to 0.049" (1.07mm to 1.24mm) to ensure proper mechanical fit and electrical contact.

Mechanical Dimensions: Overall length, mounting hole diameter, flange diameter, and socket depth must remain identical to maintain compatibility with existing printed circuit board layouts and connector housings.

Termination Method: Solder termination type and no-tail configuration must be preserved for assembly process compatibility.

Contact Properties: Beryllium copper contact material with tin finish at 100.0µin (2.54µm) thickness ensures equivalent electrical performance and environmental resistance.

Closed Bottom Feature: This design characteristic must be maintained for proper connector function.

Operating Temperature Range: The substitute part must support the full operating temperature range of -65°C to 125°C or higher.

The TE Connectivity AMP Connectors 5050871-8 satisfies all these substitution criteria while offering the advantage of active product status and improved regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity AMP Connectors 5050871-8 is the direct substitute for the obsolete 3-50871-0 terminal. This substitution is supported by complete mechanical and electrical parameter equivalence across all critical dimensions and material specifications.

Product Status Advantage: The 5050871-8 maintains active production status, ensuring long-term supply chain availability and consistent manufacturing quality control compared to the discontinued 3-50871-0.

Regulatory Compliance: The substitute part achieves ROHS3 compliance, meeting current environmental and hazardous substance restrictions. The original part is classified as RoHS non-compliant, making the substitute the appropriate choice for new designs and compliance-sensitive applications.

Thermal Performance: The substitute part extends the maximum operating temperature to 126°C, providing a 1°C improvement over the original specification while maintaining full compatibility with the -65°C minimum requirement.

Inventory and Availability: The 5050871-8 is available in significantly higher quantities (47,601 pieces in stock) compared to the original part (892 pieces), supporting both immediate requirements and long-term production planning.

All mechanical, electrical, and material properties remain functionally equivalent, enabling direct substitution without design modification or assembly process changes.

Frequently Asked Questions (FAQ)

Q: Can the 5050871-8 be used as a direct replacement for the 3-50871-0 in existing designs?

A: Yes. The 5050871-8 is a direct substitute with identical pin acceptance diameter (0.042" ~ 0.049"), overall length (0.288"), mounting hole diameter (0.101" ~ 0.103"), flange diameter (0.118"), socket depth (0.275"), contact material (beryllium copper), contact finish (tin at 100.0µin), and closed bottom feature. No design modifications are required.

Q: What is the difference in operating temperature range between these parts?

A: The original 3-50871-0 operates from -65°C to 125°C. The substitute 5050871-8 operates from -65°C to 126°C. This 1°C extension at the upper limit does not affect compatibility and provides additional thermal margin.

Q: Why is the 3-50871-0 marked as obsolete?

A: The 3-50871-0 has been discontinued from active manufacturing by TE Connectivity AMP Connectors. The 5050871-8 represents the current production equivalent and is recommended for all new applications and ongoing production requirements.

Q: Does the RoHS compliance difference affect substitution?

A: The 5050871-8 is ROHS3 compliant while the 3-50871-0 is RoHS non-compliant. For applications subject to RoHS regulations or environmental compliance requirements, the 5050871-8 is the appropriate selection. For legacy systems without compliance mandates, both parts remain functionally equivalent.

Q: Are the packaging formats different between these parts?

A: The 3-50871-0 packaging format is not specified in the available data. The 5050871-8 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: What is the pin hole diameter for these terminals?

A: The pin hole diameter specification is not provided in the technical data for either part. Refer to the detailed connector assembly documentation or contact TE Connectivity AMP Connectors for this specification.

Q: Can these terminals accept square pins?

A: The technical specifications do not include square pin size acceptance data for either part. These terminals are specified for round pin diameters only (0.042" ~ 0.049").

Q: What is the insertion force specification?

A: Insertion force data is not provided in the technical specifications for either part. Contact TE Connectivity AMP Connectors for detailed insertion force requirements.