TE Connectivity AMP Connectors 502776-8 Fiber Optic Coupler Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 502776-8 is a duplex fiber optic coupler connector designed for SC receptacle-to-SC receptacle panel mount applications. This component functions as an adapter that joins two SC fiber optic connectors in a duplex configuration, supporting singlemode OM1 fiber optic transmission.

The 502776-8 carries an obsolete product status, indicating it is no longer actively manufactured or supported by TE Connectivity. Identifying equivalent and substitute parts is necessary to maintain system compatibility, ensure continued availability for maintenance and repair operations, and support long-term deployment strategies for fiber optic infrastructure utilizing this connector type.

Substiute Parts

502776-8

TE Connectivity AMP ConnectorsIn Stock: 1031502776-8 Datasheet

Current PartRFQ

5502776-8

TE Connectivity AMP ConnectorsIn Stock: 8645502776-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 502776-8 is determined by the following critical parameters:

Primary Compatibility Parameters:

• Connector type classification (Coupler)
• Adapter end configuration (SC Receptacle to SC Receptacle)
• Duplex operation capability
• Panel mount, flange, snap-in mounting architecture
• Metal ferrule construction
• Dust cap inclusion
• Blue color specification

Secondary Compatibility Parameters:

• Fiber optic mode support (singlemode OM1 or broader multimode/singlemode compatibility)
• Housing material composition (plastic-based materials including standard plastic or glass-filled polybutylene terephthalate)
• Moisture sensitivity level (MSL 1 or equivalent)

The substitute part 5502776-8 maintains all primary compatibility parameters and expands fiber optic mode support to include both singlemode and multimode operation, making it functionally compatible with the original 502776-8 specification while offering enhanced material properties and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Product Replacement:

The 502776-8 is classified as obsolete, indicating end-of-life status with no ongoing manufacturing support. The substitute part 5502776-8 provides direct functional equivalence while offering improved regulatory compliance and material specifications.

Compliance Considerations:

The original 502776-8 carries RoHS non-compliant status. The substitute 5502776-8 achieves RoHS compliance, meeting current environmental and regulatory requirements for electronic component procurement in jurisdictions enforcing RoHS directives. The substitute also includes UL94 V-0 material flammability certification, providing enhanced fire safety documentation.

Material Enhancement:

The substitute part utilizes glass-filled polybutylene terephthalate (PBT) housing material in place of standard plastic, providing improved mechanical durability, thermal stability, and environmental resistance while maintaining the same form factor and mounting interface.

Fiber Optic Mode Compatibility:

The original 502776-8 supports singlemode OM1 fiber exclusively. The substitute 5502776-8 supports both singlemode and multimode operation, providing backward compatibility with OM1 singlemode systems while enabling broader application flexibility for multimode fiber deployments.

Frequently Asked Questions (FAQ)

Q: Can the 5502776-8 substitute directly replace the 502776-8 in existing installations?

A: Yes. Both parts maintain identical SC receptacle-to-SC receptacle duplex coupler configuration, panel mount flange snap-in mounting architecture, metal ferrule construction, and dust cap features. The substitute part is mechanically and functionally compatible with the original specification.

Q: What is the difference in fiber optic mode support between these parts?

A: The 502776-8 supports singlemode OM1 fiber exclusively. The 5502776-8 supports both singlemode and multimode fiber operation. This expanded capability in the substitute part maintains full compatibility with OM1 singlemode systems while enabling use with multimode fiber installations.

Q: Does the housing material change affect connector performance?

A: The substitute part uses glass-filled polybutylene terephthalate (PBT) instead of standard plastic. This material change provides enhanced mechanical strength, improved thermal stability, and superior environmental resistance. The connector maintains the same external dimensions, mounting interface, and electrical/optical performance characteristics.

Q: Are there regulatory compliance differences between these parts?

A: Yes. The 502776-8 is RoHS non-compliant. The 5502776-8 is RoHS compliant and includes UL94 V-0 material flammability certification. Organizations subject to RoHS requirements or requiring documented fire safety ratings should specify the 5502776-8.

Q: What is the inventory status for these parts?

A: The 502776-8 (obsolete) has 937 pieces in stock. The 5502776-8 (discontinued at DiGi Electronics) has 765 pieces in stock. Both parts are available as new original inventory, though long-term availability cannot be guaranteed for discontinued products.

Q: Are the moisture sensitivity levels equivalent?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or deployment.

Q: Can the 502776-8 and 5502776-8 be used interchangeably in the same system?

A: Yes. Both parts are mechanically and optically compatible for SC duplex coupler applications. The substitute part provides equivalent or enhanced performance across all specified parameters while offering improved regulatory compliance and material durability.