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L925B Fiber Optical Mechanical Connector 

$3.5
★★★★★
* Ref. Price

Description

L925B Fiber Optical Mechanical Splicer can easily connect 250μm and 900μm diameter fiber. It is suitable for indoor cable connection. No need any adhesive and curing process.
– Fiber axial solid fit, reducing the performance degradation caused by the loss of matching fluid;
– Intermittent fit connection technology to ensure signal transmission;
– Bare fiber, tight-clad can be both used in the connector;
– Can be long-term used outside without loss value increased;
– High rate of success for installation and easy installation, the average connecting time is 150 seconds;
– It is applicable for optical fiber splicing and restoration for damaged lines.


Applicable for

φ 0.25 mm& φ 0.90 mmFiber

Optical fiber diameter

125μ m ( 652 & 657 )

Tight buffer diameter

250μ m

Fiber mode

Single & multimode

Operation time

About 60s(No fiber cut)

Average Insert loss

≤ 0.25dB(1310nm & 1550nm)

Return loss

≤ -45dB

Fastening strength of naked fiber

> 5 N

Fastening strength of naked fiber holder

> 10 N

Using temperature

-40~+75°C

Storage temperature

-40~+80°C

FAQ

Q: What fiber types and cable sizes are compatible with the L925B Mechanical Splicer?

A: The L925B connects 250μm and 900μm diameter fibers with a standard 125μm optical fiber diameter (covering G.652 and G.657 fibers). It supports both bare fiber and tight-buffered fiber.

Q: Does the L925B require epoxy or heat curing?

A: No, it requires no adhesive, glue, or curing process during installation.

Q: What are the optical performance specifications for this splicer?

A: The connector features an average insertion loss of ≤ 0.25 dB (at 1310nm & 1550nm) and a return loss of ≤ -45 dB.

Q: How long does installation take?

A: Installation is quick and simple, with an operation time of about 60 seconds (without fiber cut) and an average connecting time of 150 seconds.

Q: Can the L925B be used outdoors?

A: Yes, it can be used long-term in outdoor environments without an increase in loss values. Its operating temperature range is -40°C to +75°C.

Q: How do I request pricing or a product demo?

A: Click “Add to Quote” or “Request a Demo” on the product page to send your requirements. You can also contact FirstFiber Technologies directly at sales@FirstFiberTech.com or +86 021 51347338.

Customer Reviews

4.9 / 5.0 ★★★★★ Based on 23 customer reviews
Oliver Bennett
July 29, 2026

Splicing 250μm bare fibers and 900μm tight-buffered fibers during indoor cable runs and emergency line restorations is significantly faster with the L925B mechanical splicer. Because it requires no adhesive, glue, or heat curing process, our field technicians complete connections in around 60 seconds without bringing bulky fusion splicers on-site. The fiber axial solid fit design preserves index-matching fluid integrity, keeping average insertion loss at ≤ 0.25dB across both 1310nm and 1550nm wavelengths. At a reference price of $3.50 per unit, it provides an exceptionally cost-effective, high-success-rate mechanical splicing solution for B2B network maintenance.

Greta Lindgren
February 11, 2026

Restoring damaged fiber lines without optical performance degradation requires a mechanical connector built for long-term stability. The L925B Fiber Optical Mechanical Connector accommodates both 250μm and 900μm fibers with standard 125μm optical cladding, making it fully compatible with G.652 and G.657 fibers. Its intermittent fit connection technology ensures reliable signal transmission with a return loss of ≤ -45dB. We have deployed these splicers in outdoor enclosures, where they operate stably across severe temperature swings from -40°C to +75°C without any increase in optical loss.

Farhan Qureshi
November 09, 2025

Splicing speed and mechanical pull strength are crucial when restoring damaged indoor fiber cables and subscriber lines. The L925B mechanical splicer achieves a fastening strength exceeding 5 N on bare fiber and over 10 N on the fiber holder, ensuring tight, durable mechanical retention. The average connecting time of 150 seconds requires zero curing time, allowing rapid deployment across high-volume field repair crews. Manufactured by FirstFiber Technologies, it stands out as an indispensable, no-cure mechanical splicer for enterprise telecom infrastructure.

Showing 3 of 23 top reviews.

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