SC/UPC Pigtails

 SC/UPC Pigtails– High-Precision Singlemode Termination for Fusion Splicing and Network Integration

SC/UPC fiber optic pigtails are essential components for building, repairing, or expanding high-performance fiber optic networks. Featuring a factory-polished SC/UPC connector on one end and an open fiber tail on the other, these pigtails are specifically designed for fusion splicing into fiber optic trays, enclosures, patch panels, or distribution boxes.

Built with singlemode G.657A1 or G.652D fiber, SC/UPC pigtails offer low insertion loss, excellent return loss, and precise core alignment, ensuring efficient signal transmission across a wide range of telecom and data applications.

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What Is an SC/UPC Pigtail?

An SC/UPC pigtail consists of:

• A SC (Subscriber Connector) with UPC (Ultra Physical Contact) polish – providing a flat surface that minimizes back reflection and delivers return loss ≥ 50 dB.

• A stripped, unterminated fiber tail – ready for fusion splicing to existing fiber optic cabling.

SC/UPC connectors are widely used due to their push-pull lock mechanism, durable square-shaped body, and compatibility with ODFs, ONTs, media converters, and fiber termination boxes.

These pigtails are typically color-coded and delivered in 12-color kits or as individual pigtails, depending on project needs.

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Key Features and Benefits of SC/UPC Pigtails

✅ Precision SC/UPC Connector

The pre-polished SC/UPC end is manufactured under stringent standards to ensure low reflection and high repeatability. Each connector is made with zirconia ceramic ferrules, known for their thermal stability and precision alignment.

✅ High-Quality Singlemode Fiber

Constructed with G.657A1 or G.652D singlemode optical fiber, the pigtail supports long-distance transmission and high-bandwidth applications, including GPON, EPON, and DWDM systems. Bend-insensitive properties ensure performance in high-density trays and tight spaces.

✅ Low Insertion and Return Loss

Typical insertion loss is ≤ 0.3 dB, and return loss is ≥ 50 dB, ensuring high signal integrity and reduced back reflection, which is crucial for maintaining performance in high-speed fiber networks.

✅ Easy Fusion Splicing

The open fiber end is ready for fusion splicing, making these pigtails ideal for fiber terminations in field installations or factory pre-termination. The 900μm tight buffer coating allows easy stripping and handling.

✅ LSZH Jacket – Flame Retardant and Safe

The Low Smoke Zero Halogen (LSZH) outer jacket is standard for indoor installations and ensures minimal smoke and toxic emission in the event of fire, meeting safety regulations for data centers and telecom facilities.

✅ Multiple Lengths and Colors Available

SC/UPC pigtails are available in standard lengths like 1 meter, 1.5 meters, or custom lengths, and offered in individual or 12-color kits for easy identification and organization during mass terminations.

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Common Applications of  SC/UPC Pigtails

SC/UPC pigtails are used in a wide range of fiber optic environments, including:

• FTTH (Fiber to the Home) – Terminating optical cables inside wall boxes and distribution terminals.

• Data centers – Connecting patch panels and equipment through spliced joints.

• Telecommunication networks – Used in backbone splicing, distribution frames, and maintenance work.

• CATV systems – Supporting broadcast and RF over fiber connections.

• Test and laboratory setups – For splicing into test equipment or temporary builds.

• Fiber distribution hubs (FDHs) – Splicing SC/UPC pigtails into backbone or drop fibers.

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Technical Specifications for SC/UPC Pigtails

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Installation Tips of SC/UPC Pigtails

• Always clean connector endfaces using a fiber cleaning kit before mating with an adapter or port.

• Use proper fusion splicing tools for clean, low-loss splices.

• Label pigtails clearly when using multiple colors to avoid installation errors.

• Avoid overbending – follow minimum bend radius guidelines to prevent microbending loss.

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Why Choose SC/UPC Pigtails?

• ✅ Time-saving: Pre-terminated, ready for splicing

• ✅ Compatible: Universally fits SC adapter ports

• ✅ Reliable: Low loss, stable over time

• ✅ Cost-effective: Ideal for field terminations

• ✅ Standards-compliant: Tested to meet international telecom specifications

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Final Thoughts

SC/UPC fiber optic pigtails are a critical part of any modern fiber network infrastructure. Offering stable, low-loss connections, they are ideal for splicing into distribution frames, wall boxes, and test environments. Whether you’re working on an FTTH deployment, upgrading a data center, or building a new telecom site, these pigtails ensure the reliability, performance, and scalability your network demands.

Available in bulk packs, color-coded sets, or custom assemblies, SC/UPC pigtails are a must-have for any fiber installation professional.