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Splice Protector Sleeves

Fusion Splice Protector Sleeves
FinishAdapt Ltd
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Fusion Splice Protector Sleeves
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High quality, Bellcore (Telcordia) Certified fusion Splice Protector Sleeves. Largest range with 75+ different types/sizes for all fibre and photonics applications.  15 million in stock for fast global delivery. Custom designs provided to meet clients specific applications.

Specifications
Fiber Size: 250 um
Recovered Diameter: 1.1 mm
Product Length: 10 mm
Pin Diameter: 0.5 mm
Pin Length: 10 mm
Data Sheet
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Protect Your Fiber Connections with Splice Protector Sleeves

Splice protector sleeves are essential accessories in fiber optic installations, designed to safeguard fusion splices from environmental damage, mechanical stress, and bending. These protective sleeves play a critical role in maintaining long-term signal integrity and physical durability in fiber optic networks, whether in telecommunications, data centers, field installations, or industrial systems.

When two optical fibers are joined using fusion splicing, the resulting joint - though optically strong - can be mechanically fragile. A splice protector sleeve reinforces this connection by encapsulating the splice in a durable, transparent tube, shielding it from moisture, dust, bending, and impact. This ensures that the optical path remains undisturbed, even in harsh conditions or high-vibration environments.

Each splice protector sleeve typically consists of three components:

  • An outer heat-shrink tube that provides environmental sealing.

  • A strength member (usually a stainless steel or ceramic rod) that offers mechanical reinforcement.

  • An inner adhesive or thermo-sensitive liner that bonds to the fiber coating, securing the splice in place.

Once the sleeve is placed over the splice, it is heat-shrunk using a fusion splicer’s built-in heater or a separate heat oven. The sleeve contracts around the fiber, bonding tightly to create a stable, protective enclosure that prevents microbending and ensures minimal signal loss.

Splice protector sleeves come in various lengths and diameters to accommodate different fiber types and splice tray dimensions. Common lengths include 40 mm, 45 mm, and 60 mm, while diameters vary depending on whether single fiber, ribbon fiber, or specialty fibers are being used. For high-density or space-constrained applications, slim-profile and mini-sleeve options are available.

Key benefits of using splice protector sleeves include:

  • Enhanced mechanical protection of spliced fibers.

  • Improved environmental resistance, reducing risk of signal degradation.

  • Ease of installation with standard heat-shrink processes.

  • Compatibility with most fusion splicers and splice holders.

When selecting splice sleeves, it’s important to ensure compatibility with your fusion splicer, splice tray, and fiber type. High-quality sleeves provide consistent shrink performance, optical clarity for inspection, and a strong seal without introducing signal attenuation.

FindLight offers a wide selection of splice protector sleeves for single-mode, multimode, and ribbon fiber applications. Browse our curated catalog to find the right sleeve for your splicing needs - ensuring that every connection in your fiber optic network is protected, reliable, and built to last.

Did You know?

A fusion splice may perfectly join two optical fibers, but without a splice protector sleeve, it’s left mechanically vulnerable. Splice sleeves provide rugged protection by enclosing the splice in a heat-shrink tube reinforced with a strength member. Once heated, the sleeve creates a sealed, durable bond that shields the joint from moisture, dust, bending, and vibration. Available in multiple sizes and profiles, they’re indispensable for long-term durability in telecom, FTTx, and industrial installations. Splice protector sleeves ensure your carefully made connections stay intact - even under the most demanding conditions.