Single Mode LC To LC Duplex Fiber Optic Connector
Get single mode LC to LC duplex fiber connectors with effortless push-pull design and ultra-low loss. Carrier-grade. B2B pricing available!
Description
Single Mode LC to LC Fiber Optic Connector - Precision You Can Count On
The COBTEL LC fiber optic connector is engineered for professionals who demand flawless optical performance in every link. Whether you're building a high-density data center, upgrading a telecom backbone, or deploying enterprise fiber across a campus, our single mode LC connector delivers ultra-low insertion loss, carrier-grade reliability, and an effortless push-pull latch that makes dense patching fast and error-free.
As a leading manufacturer in the lc fiber connector market, COBTEL ships fully tested LC to LC connectors - simplex and duplex, UPC and APC - to B2B buyers in 40+ countries. Every unit passes individual insertion loss and end-face inspection before it leaves our facility.
6 Performance Pillars Behind Every COBTEL LC Fiber Connector
These are not marketing bullets - they are measurable, tested attributes that ship with every fiber optic lc connector we produce.
Ultra-Low Loss
Average IL ≤ 0.20 dB - keeps your link budget where it belongs: in your pocket.
Ceramic Ferrule
1.25 mm zirconia ferrule with ≤ 0.5 μm bore concentricity for perfectly aligned cores.
Telecom Grade
Meets IEC 61754-20 and TIA-568 - accepted by carriers and MSOs worldwide.
High-Speed Transmission
Supports 1G to 100G+ applications. No bottlenecks at the connector level.
Stable Performance
Less than 0.2 dB IL change after 1,000 mating cycles - consistent from day one to year five.
High-Performance Fiber Core
Bend-insensitive G.657A2 fiber option handles 7.5 mm bend radius without signal loss.
What Is an LC Fiber Connector? A Practical Guide for B2B Buyers
An LC fiber connector - short for Lucent Connector - is a small form-factor fiber optic connector developed by Lucent Technologies in the mid-1990s. Its defining feature is the 1.25 mm zirconia ceramic ferrule, exactly half the size of the 2.5 mm ferrule used by an SC connector. That compact footprint is the reason the LC connector became the dominant choice for high-density data center and telecom applications where rack space is precious.
When engineers refer to an LC to LC fiber connector or an LC-LC connector, they mean a fiber patch cable with LC connectors on both ends. This is the most common configuration for connecting SFP/SFP+ transceivers, fiber switches, ODF patch panels, and optical amplifiers across virtually every modern fiber network.
It's useful to understand the main LC connector types before placing an order. The LC UPC connector (Ultra Physical Contact) has a slightly curved, flat end-face polished to very tight surface geometry. It delivers return loss ≥ 50 dB and is the right choice for the vast majority of digital data applications. The LC APC connector (Angled Physical Contact) features an 8-degree angled end-face that redirects back-reflection away from the fiber core, achieving return loss ≥ 65 dB. APC is preferred for analog video, FTTH/PON, and any system sensitive to back-reflected light. These two types are not cross-compatible - never mate an APC to a UPC connector.
The single mode LC connector (sometimes called an LC SM connector) is designed for 9/125 μm single-mode fiber and is used for long-distance spans across telecom networks, campus backbones, and WAN links. The multimode LC connector (or LC MM fiber connector) fits 50/125 μm or 62.5/125 μm multimode fiber for shorter in-building or campus runs.
When comparing LC and SC fiber connectors, the LC wins on density: a standard 1U patch panel holds 24 LC duplex ports but only 12 SC duplex ports. For new installations, LC is almost always the professional recommendation.
Quick LC Connector Type Reference
- LC UPC Connector - Return loss ≥ 50 dB, blue housing, standard data networks
- LC APC Connector - Return loss ≥ 65 dB, green housing, PON / CATV / FTTH
- Single Mode LC Connector - 9/125 μm fiber, long-distance backbone links
- Multimode LC Connector - 50/125 or 62.5/125 μm, in-building / campus runs
- Simplex LC UPC Connector - One fiber per body, used in BIDI transceivers
- LC Duplex Connector - Two fibers in one clip body, the most common form
- LC Uniboot Connector - Two fibers in one jacket, ultra-high-density use
- LC PC Connector - Physical Contact polish, original style, still used in legacy systems
Refer to the LC connector diagram included in our product datasheet for ferrule geometry, housing dimensions, and coupling key orientation details. Download available on request.
Where Do LC Fiber Connectors Solve Real Problems? 8 Key Industries
B2B buyers don't need a connector - they need a solution. Here's exactly what our LC fiber optic connectors fix in the industries that depend on them most.
Telecommunications Networks
Telecom operators use our single mode LC connector at central offices, DSLAM racks, and metro Ethernet nodes. The ultra-low insertion loss keeps signal integrity across long-haul spans, reducing the need for costly optical amplifiers and cutting total network CAPEX.
Data Centers
Hyperscale and enterprise data centers route every inter-rack and top-of-rack link through fiber optic connectors LC. Our push-pull LC-LC connector cuts patching time by up to 30% in fully loaded racks - a genuine operational advantage at scale.
Enterprise LAN & Campus Networks
IT teams deploying fiber backbones between floors and buildings rely on LC to LC fiber connectors for MDA-to-IDA horizontal runs. The compact LC format doubles port density versus SC on every patch panel, freeing valuable rack space for active equipment.
Medical & Healthcare Facilities
Hospitals transmit large MRI and CT image files in real time over fiber. A fiber optic LC connector with stable optical performance ensures these critical transfers complete without packet loss or retransmission delays - directly supporting patient care quality.
Energy & Utilities
Smart-grid substations and industrial control systems use fiber cable LC connectors in chemically demanding environments. Our LSZH jacket with acid/alkali resistance keeps optical performance stable in high-humidity and corrosive utility sites.
Broadcasting & Media Production
Broadcast studios route uncompressed 4K/8K video over fiber. The low back-reflection of our LC UPC fiber connector eliminates ghost signals, and the push-pull latch allows rapid cable swaps during live production without disrupting adjacent connections.
Construction & Smart Buildings
Contractors deploying structured cabling in new commercial buildings specify fiber optic connectors lc for all backbone runs. The IEC-standard format guarantees compatibility with any future active equipment - a future-proof choice that building owners and tenants will appreciate for decades.
Government & Defense
Secure, mission-critical communications infrastructure demands connectors that never fail. Our fiber lc connector meets international environmental and performance standards, supporting voice, data, and encrypted video links where downtime is simply not an option.
7 Engineering Advantages That Set Our LC Fiber Optic Connector Apart
Every detail of the COBTEL LC connector fiber optic assembly is designed to outperform generic alternatives. Here's the evidence.
Premium Zirconia Ceramic Ferrule - The Core of Every Reliable LC Connection
The ferrule is the most critical part of any fiber lc connector, and ours is made from dense zirconia oxide ceramic - the same material used in aerospace and surgical tooling. Its bore concentricity is held to ≤ 0.5 μm, ensuring that the fiber core of one single mode lc fiber connector aligns precisely with its mating counterpart every single time. The result is insertion loss averaging 0.10–0.15 dB, consistently below the 0.20 dB industry benchmark. Return loss reaches ≥ 50 dB on our LC UPC connector and ≥ 65 dB on our LC APC connector. The ceramic ferrule also withstands over 1,000 mating cycles with less than 0.2 dB IL change - verified on calibrated test equipment for every production batch. When your link budget is tight and every tenth of a decibel matters, this ferrule is where the difference is made.
All-in-One Push-Pull Design - Effortless Installation in Dense Environments
Conventional LC fiber connectors have a small plastic latch tab that must be squeezed to release - an awkward, time-consuming task in a crowded patch panel where your fingers barely fit. Our push-pull LC to LC fiber connector solves this problem permanently. The entire housing is molded as a seamless one-piece body. Push to lock; pull the tab to release. The whole operation takes under a second, even in a fully populated 1U panel with 48 ports. Because there are no thin latch bridges, there are no latch-snap failures. For system integrators handling hundreds of fiber optic cable LC connectors on a single project, the cumulative time savings and reduced error rate are substantial. This push-pull LC lc connector is also rated break-resistant - the one-piece construction distributes insertion force evenly, eliminating the stress concentrations that cause conventional latches to crack.
Ultra-Low Insertion Loss - Signal-Perfect Optical Transmission
Every decibel of insertion loss you add at a connector is signal you cannot recover downstream. Our LC optical connector achieves average IL of ≤ 0.20 dB, with typical values of 0.10–0.15 dB - measured on calibrated insertion loss/return loss test stations, not estimated from batch averages. This consistent performance gives system designers more link budget headroom, enabling longer spans without optical amplification or allowing extra splice/connector budget for complex installations. For the LC fiber connector market's most demanding buyers - carriers, cloud operators, and defense integrators - this verified, repeatable low loss is what turns a good connector into a trusted standard component.
LSZH Environmental Materials - Safe, Green, and Regulation-Ready
The jacket of every fiber cable LC connector patch cord we produce is Low Smoke Zero Halogen (LSZH) rated. In a fire, LSZH jackets produce a fraction of the smoke and none of the toxic hydrogen chloride that standard PVC cables emit - a critical life-safety advantage in enclosed data halls, hospital corridors, and transit tunnels. The material also delivers excellent moisture resistance for tropical and high-humidity environments, strong acid and alkali resistance for industrial and utility installations, and low-carbon eco-friendly performance that helps your organization meet LEED, BREEAM, or corporate sustainability commitments. High-precision, flame-retardant (UL94 V-0) components in the connector housing add a further layer of fire protection. The LC fibre connector you deploy today will meet tomorrow's environmental regulations too.
Telecommunication-Grade Standards - Built for Carriers, Trusted by Everyone
Not all fiber optic connectors LC sold online meet the standards they claim. COBTEL's LC connector fiber products are manufactured to IEC 61754-20 (the international standard for LC connectors), tested to TIA-568 (North American structured cabling standard), and certified RoHS 2011/65/EU compliant. These certifications are not optional add-ons - they are built into our ISO 9001:2015 quality management system. The result is a single mode LC connector that tier-1 carriers, cloud ISPs, and enterprise IT procurement teams can source against a published standard, simplifying vendor qualification and reducing project risk.
Tensile Strength & Compression Resistance - Durable in the Real World
An LC mechanical connector that breaks after three installations costs far more than its purchase price - in rework labor, downtime, and frustration. Our connector assembly uses engineering-grade polymer for the housing and a high-strength strain-relief boot, providing tensile strength ≥ 100 N per IEC 61300-2-4. The cable jacket passes compression testing to confirm the fiber core remains undamaged when the cable is pinched, stepped on, or pulled through a tight conduit. The seamless push-pull mechanism distributes mechanical load evenly, eliminating the fracture points that plague standard latch designs. For single mode lc connectors deployed in production environments where cables are handled daily, this durability is not a spec-sheet number - it is a direct cost saving across the connector's working life.
High-Precision Polishing Technology - End-Face Perfection You Can Verify
The end-face quality of a connector lc lc is invisible to the eye but critical to optical performance. Our proprietary multi-stage polishing process uses precision machines that hold polishing pressure, time, and abrasive sequence to tight tolerances. After polishing, every end-face is inspected under a 200× digital video microscope and evaluated against IEC 61300-3-35 Grade B standards - checking scratch zones, pits, chips, and debris before the connector advances to optical testing. For our LC UPC fiber connector, the ferrule end-face radius (EFL) is held between 10–25 mm and apex offset below 50 μm. For our apc lc connector, the 8-degree angle is verified and the key alignment confirmed. Only connectors that pass both microscopic end-face inspection and live IL/RL measurement leave our factory. Third-party inspection reports available on request.
Bend-Insensitive Fiber Core - Reliable Signal Even in Tight Cable Routes
Standard G.652D single-mode fiber performs well in most installations, but in structured cabling environments where cables must be bundled tightly, routed around corners, or terminated in shallow wall boxes, bend loss can quietly degrade link performance. Our LC fiber optic connectors are available with bend-insensitive G.657A2 fiber, which maintains specified attenuation at bending radii as small as 7.5 mm - a 50% tighter radius than standard single-mode fiber. The fiber core is also described as "bend-insensitive with good mechanical properties," delivering reliable performance in demanding routing conditions that would compromise ordinary single mode lc fiber connectors. Specify standard (G.652D) or bend-insensitive (G.657A2) at time of order - pricing is available for both.
Complete Technical Specifications - Single Mode LC to LC Fiber Connector
Full parameter table for the COBTEL LC type connector product family. All values tested per IEC/TIA standards. Custom values available on request.
| Parameter | Specification | Standard / Notes |
|---|---|---|
| Connector Type | LC (Lucent Connector) - small form factor | IEC 61754-20 |
| Polishing Type | UPC (Ultra Physical Contact) / APC (Angled Physical Contact) | UPC: blue body | APC: green body |
| Fiber Type | Single Mode 9/125 μm (OS1, OS2); Multimode 50/125 μm, 62.5/125 μm | ITU-T G.652D / G.657A2 |
| Ferrule Material | Zirconia Oxide (ZrO₂) Ceramic | 1.25 mm nominal diameter |
| Ferrule Bore Concentricity | ≤ 0.5 μm | IEC 61754-20 |
| Insertion Loss (IL) | ≤ 0.20 dB (typical 0.10–0.15 dB) | Per mated pair, average |
| Return Loss - LC UPC | ≥ 50 dB | Flat / curved end-face polish |
| Return Loss - LC APC | ≥ 65 dB | 8° angled end-face polish |
| Mating Durability | ≥ 1,000 cycles with ≤ 0.2 dB IL change | IEC 61300-2-2 |
| Operating Temperature | −40°C to +85°C | Storage: −40°C to +85°C |
| Cable Jacket Material | LSZH (Low Smoke Zero Halogen), PVC optional | RoHS, IEC 60332 compliant |
| Cable Outer Diameter | 1.6 mm / 2.0 mm / 3.0 mm | Custom diameters on request |
| Tensile Strength | ≥ 100 N | IEC 61300-2-4 |
| Fiber Core Option | Standard G.652D / Bend-Insensitive G.657A2 | Specify at time of order |
| Housing Material | High-precision, flame-retardant engineering polymer | UL94 V-0 rated |
| Configuration | Simplex / Duplex / Uniboot | Push-pull duplex standard |
| Applicable Standards | IEC 61754-20 · TIA-568 · RoHS · ISO 9001:2015 | Factory-tested per batch |
Custom LC Connector Manufacturing - OEM & Wholesale Solutions Built Around Your Spec
Most suppliers sell you their catalog. COBTEL manufactures to yours. Our OEM program is built for B2B buyers who need specific performance, branding, or configuration - and who cannot afford to compromise on either quality or schedule.
🎨 Custom Cable Colors
Standard aqua, yellow, orange, blue, gray, or any RAL color for project-specific identification. Custom colors ship at standard lead times above MOQ.
📏 Custom Cable Lengths
Standard 0.5 m to 50 m, with custom lengths down to 10 cm for ultra-short patch panel applications. Length tolerance: ±5 cm.
🏷️ Private Label / OEM Branding
Your logo and part numbers printed directly on the connector boot and packaging. Artwork setup at no charge. Applies to all LC fiber connectors in our product range.
🔀 Hybrid Connector Types
Need LC-to-SC, LC-to-ST, or LC-to-FC? We manufacture any fiber lc lc connector or hybrid configuration. Send your spec and receive a quote within 48 hours.
📦 Custom Packaging
Individual retail bags, bulk reel packaging, or custom-printed boxes. We match your supply chain requirements exactly so every fiber optic lc connector arrives shelf-ready.
⚡ Fast Sampling
Standard samples ship in 3–5 business days. Pre-production samples for new custom specs complete in 7–14 business days, including testing certificates and end-face inspection images.
Your Drawing. Our Factory. Guaranteed Performance.
Send us your LC connector diagram, spec sheet, or even a sample product you want matched. Our engineering team reviews every inquiry within 24 hours and provides a formal quotation within 48 hours. Typical production lead time for bulk LC connectors fiber orders is 15–25 business days after sample approval. We've supported B2B buyers from 40+ countries with exactly this kind of customized fiber lc connector manufacturing. Whether you need 100 pieces or 100,000, the same quality management process applies - and the same individual optical testing ships with every unit.
Production Capacity & Manufacturing Strength
When you source fiber optic connectors LC at scale, your supplier's factory matters as much as the spec. Here's what stands behind every COBTEL LC lc connector you order.
Our 6-stage production and quality flow ensures every fiber connector lc that ships has been individually verified - not sampled from a batch:
Raw Material Inspection
Every ceramic ferrule and LSZH cable batch is inspected against incoming material standards before entering production.
Precision Fiber Bonding
Trained technicians inject calibrated epoxy and cure fiber to ferrule under controlled temperature and pressure.
Multi-Stage Polishing
Our polishing sequence consistently exceeds IEC 61300-3-35 Grade B end-face requirements for both UPC and APC types.
200× End-Face Inspection
Every fiber end-face is examined under a calibrated digital video microscope. Scratches, pits, or debris = immediate rejection.
IL / RL Optical Testing
100% of LC fiber connectors pass through our test station. IL and RL readings recorded per unit.
Final QC & Packaging
Label accuracy, part numbers, and packaging format verified before product leaves the facility. 12-month warranty applies.
Certifications & Quality That Protect Your Business
Choosing a certified manufacturer for fiber optic lc connectors is not just best practice - in many markets and government contracts, it is a formal requirement. Here's how COBTEL keeps your procurement compliant.
Our ISO 9001:2015 quality management system governs every step of design, manufacturing, testing, and delivery for every LC fiber optic connector product we produce. Full QMS audit reports are available to qualified B2B buyers on request.
RoHS and REACH compliance makes our single mode lc connectors suitable for sale and installation throughout the European Union and in markets with equivalent environmental legislation. The LSZH jacket material meets IEC 60332 fire-rating requirements, which are increasingly mandated by building codes in commercial and public buildings.
Our LC fiber connectors are manufactured to be physically and optically compatible with adapters and enclosures from Corning, CommScope, Panduit, Leviton, and all other brands that follow the IEC 61754-20 connector interface standard. A Corning LC connector adapter accepts our connectors without modification.
What B2B Buyers Say
"We've sourced single mode LC connectors from COBTEL for three years. Their insertion loss consistency across thousands of units is genuinely impressive - we get the same low numbers throughout each order, not just on the approval samples. That reliability keeps our client deployments on schedule every time."
- Network Infrastructure Distributor, United Kingdom"The push-pull LC to LC connector design cut our rack patching time by approximately 30 percent. On a project with 600 patch cords, that's a full day saved. The ceramic ferrule quality matches the spec exactly - no surprises after field deployment."
- Data Center Integration Firm, GermanyFrequently Asked Questions About LC Fiber Connectors
Everything B2B buyers need to know before selecting an LC fiber optic connector for their project.
1. What is an LC fiber connector, and how does it differ from an SC connector?
2. What is the difference between an LC UPC connector and an LC APC connector?
3. Can I use a single mode LC connector with multimode fiber?
4. How many times can an LC connector be connected and disconnected?
5. How do I read an LC connector diagram and identify the connector type I need?
6. Are COBTEL LC fiber connectors compatible with Corning and other major brands?
7. What is an LC uniboot connector, and when is it the right choice?
8. What is the minimum order quantity for wholesale LC connector purchasing?
9. How long does OEM or custom LC fiber connector production take?
10. Do your LC connectors support 40G, 100G, or 400G applications?
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