HSC-A3-D1(02) Fiber Optic Connector Coupler - Equivalent & Substitute Parts

Part Overview

The HSC-A3-D1(02) is a simplex fiber optic coupler manufactured by Hirose Electric Co Ltd, designed to connect two SC receptacle connectors in a panel-mount configuration with snap-in installation. This component functions as an adapter that joins two SC fiber optic connectors in a back-to-back arrangement, commonly used in telecommunications and data center infrastructure.

The HSC-A3-D1(02) carries a Last Time Buy status, indicating that Hirose Electric has discontinued or will discontinue production. Organizations currently using this component must identify qualified substitute parts to ensure continuity of supply for maintenance, repair, and new system deployments.

Substiute Parts

HSC-A3-D1(02)

Hirose Electric Co LtdIn Stock: 926HSC-A3-D1(02) Datasheet

Current PartRFQ

1-5502632-1

TE Connectivity AMP ConnectorsIn Stock: 11511-5502632-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HSC-A3-D1(02) is determined by the following critical parameters:

• Connector Type & Configuration: Must be a coupler with SC receptacle-to-SC receptacle adapter ends
• Simplex Operation: Must support simplex (single-fiber) transmission only
• Mounting Specification: Must support panel mount with flange and snap-in installation
• Regulatory Compliance: Must maintain UL94 V-0 flammability rating and RoHS compliance
• Environmental Tolerance: Must operate within or exceed the -25°C to 70°C temperature range
• Moisture Sensitivity: Must maintain MSL 1 classification

The TE Connectivity AMP Connectors part number 1-5502632-1 meets all mandatory substitution criteria. While housing material differs (polybutylene terephthalate with glass fill versus synthetic resin) and ferrule material differs (ceramic versus zirconia), both materials are standard in fiber optic coupler construction and maintain equivalent mechanical and optical performance within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity AMP Connectors part 1-5502632-1 is qualified as a direct substitute for the HSC-A3-D1(02). Selection rationale is based on the following factors:

Functional Equivalence: Both components perform identical coupler functions with SC receptacle-to-SC receptacle simplex configuration and panel-mount snap-in installation.

Regulatory Alignment: Both parts maintain UL94 V-0 flammability certification and RoHS compliance, satisfying standard telecommunications and data center regulatory requirements.

Supply Continuity: The TE Connectivity part carries Active product status with confirmed inventory availability (1062 units), providing reliable supply for immediate and future procurement needs.

Material Compatibility: While housing and ferrule materials differ between manufacturers, both material selections are standard in fiber optic coupler applications and maintain equivalent performance within the specified operating temperature range of -25°C to 70°C.

Compliance Classification: Both parts share identical ECCN (EAR99) and HTSUS (8536.69.4030) classifications, ensuring consistent export and tariff treatment.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1-5502632-1 be used as a direct replacement in existing installations using the HSC-A3-D1(02)?

A: Yes. Both components share identical connector type, adapter configuration (SC receptacle to SC receptacle), simplex operation, mounting specification (panel mount with flange and snap-in), and regulatory certifications. Physical dimensions and mating interfaces are equivalent.

Q: What is the difference between the zirconia ferrule in the Hirose part and the ceramic ferrule in the TE Connectivity part?

A: Both zirconia and ceramic are standard ferrule materials in fiber optic coupler construction. The material difference does not affect functional compatibility or performance within the specified operating parameters.

Q: Are there any temperature or environmental limitations when substituting the TE Connectivity part for the Hirose part?

A: No. Both components operate within the same temperature range (-25°C to 70°C) and maintain identical moisture sensitivity classification (MSL 1, Unlimited). Environmental performance is equivalent.

Q: Why is the HSC-A3-D1(02) marked as Last Time Buy?

A: Last Time Buy status indicates that Hirose Electric has discontinued or will discontinue production of this component. Organizations should transition to qualified substitute parts to ensure supply continuity.

Q: Does the housing material difference (synthetic resin versus PBT glass-filled) affect installation or performance?

A: No. Both materials meet UL94 V-0 flammability requirements and are suitable for panel-mount fiber optic coupler applications. The material difference does not affect mechanical fit, electrical performance, or optical transmission characteristics.

Q: Are both parts RoHS compliant?

A: Yes. Both the HSC-A3-D1(02) and the TE Connectivity 1-5502632-1 are RoHS compliant, meeting regulatory requirements for hazardous substance restrictions.