Sc & FC Adjustable Type Fiber Optical Attenuator 1-30dB Optional

• Customization: Available
• Transmission Medium: Single-Mode
• Structure: Sc/FC
• Model NO.: HOL-SCFCA
• Ferrule Endface: Upc/APC
• Application: Fiber Distribution Frame, Network Equipment, Fiber Module
• Connector Type: Sc/FC
• Brand: Holight
• Attenuation Range: 1-30dB
• Attenuation Accuracy: ±0.5dB(1dB-10dB); ±1.0dB(11dB-25dB)
• Available Wavelengths: 1310nm,1550nm,1310&1550nm
• Return Loss: ≥50dB(Upc); ≥60dB(APC)
• Polarization Dependent Loss: ≤0.2dB
• Temperature Range: -40-80°c(≤0.2dB in Insertion Loss)
• Maximum Optical Input Power: 200MW
• Transport Package: Standard Packaging
• Trademark: HOLIGHT
• Origin: China
• HS Code: 8536700000
• Production Capacity: 200000 PCS/Month
• Package Size: 48.00cm * 48.00cm * 30.00cm
• Package Gross Weight: 16.000kg

Product Description

Product Description

Typical Applications

Product Features

The SC & FC Adjustable Fiber Optic Attenuators provide a flexible and precise solution for managing optical power levels across a variety of fiber optic networks. These screw-type attenuators allow continuous adjustment from 1dB up to 30dB, making them ideal for link balancing, equipment testing, and system evaluation.

Designed for easy field or lab use, the attenuator ensures high return loss and low back reflection across 1310nm and 1550nm wavelengths. Available in SC/FC interface with UPC or APC polish, it supports both telecom and CATV applications.

• Fiber optic power budget simulation
• Equipment testing and calibration
• Network attenuation balancing
• FTTH and FTTB optical network setup
• Data center signal conditioning
• Lab and R&D optical systems
• Optical transmission simulation training
• Telecom and CATV system maintenance

• Wide attenuation range: 1–30dB continuous adjustment
• Available in SC or FC interface, UPC/APC polish
• High return loss and repeatability
• Screw-type mechanism for precise control
• Compatible with standard singlemode connectors
• Durable and reusable with 1000+ mating cycles
• RoHS-compliant and low insertion loss

Product Specifications
Transfer Mode	Single mode
Connector Gender	Adjustable
Attenuation Range	1-30dB
Attenuation Accuracy	±0.5dB(1dB-10dB); ±1.0dB(11dB-25dB)
Available Wavelengths	1310nm,1550nm,1310&1550nm
Wavelength Dependence	<0.3dB Change in insertion loss for 1310-1550nm
Return Loss	≥50dB(UPC); ≥60dB(APC)
Polarization Dependent Loss	≤0.2dB
Temperature Range	-40-80°C(≤0.2dB in insertion loss)
Humidity Range	+/-0.2dB Change in 10% to 90% relative Humidity Range
Vibration	≤0.1dB Change between 10Hz to 55Hz
Drop	+/-0.2dB after 8 drops from 1.8meters onto a hard surface
Maximum Optical Input Power	200mW

Customization 

Quality Assurance

• Connector type: SC / FC / ST / LC available
• Polish: UPC or APC
• Attenuation range: 1dB to 30dB
• Logo & labeling: OEM supported
• Packing: Zip bag / blister box / OEM packaging

• 100% attenuation calibration tested
• Environmental aging and vibration test passed
• Certified with CE, RoHS
• Factory inspection report available upon request

Packing & Delivery

Buyer Benefits

• Packaging: Individual bag or blister
• Lead Time: 5–7 working days
• Delivery Options: Express, air, sea freight

• Adjustable attenuation on demand
• Reusable in multiple test environments
• Low MOQ and flexible supply
• Technical support for OEM projects

Customer Reviews

"Accurate and smooth adjustment — useful for testing optical modules." — Leon H., USA

"Well-packaged, great quality, we use them in our lab frequently." — Sophie M., UK

"Very good performance for our FTTH field testing kits." — Tariq A., UAE

"Nice click feedback while adjusting, feels premium." — Naoto F., Japan

"Worked exactly as specified, 30dB attenuation tested OK." — Carlos R., Mexico

"Good value compared to other brands, especially for SC APC type." — Dominik W., Poland

FAQ

Q1: What's the attenuation range of this product?
A: It provides continuously adjustable attenuation from 1dB to 30dB.

Q2: What connector types are supported?
A: SC and FC interfaces are available, both UPC and APC polish.

Q3: Can I use it for both 1310nm and 1550nm wavelengths?
A: Yes, it's optimized for both standard singlemode wavelengths.

Q4: Are these suitable for outdoor use?
A: They are mainly designed for indoor test and lab environments.

Q5: Is OEM packaging available?
A: Yes, custom labels and packaging are available on request.

Q6: What's the delivery time?
A: Normally 5–7 working days depending on quantity.

Related Products

ABOUT HOLIGHT

Established in 2010, HOLIGHT has been dedicated to the fiber optic communication industry for over a decade. Our name "HOLIGHT" represents Honesty, Belief, and Righteousness — values that form the cornerstone of our management philosophy.

 

As a professional manufacturer of passive fiber optic products, we are focused on producing Optic Fiber Cables, Fiber Optic Connectors, Patch Cords, Adapters, Attenuators, Fiber Optic Splitters, MPO/MTP Series, FTTH Terminal Box, Splice Closure, Patch Panel, Splice Tray, OTDR, Fiber Cleaner Tool and so on.

 

Today, HOLIGHT exports products worldwide. As we move forward, we remain focused on delivering reliable quality, continuous innovation, and sincere service — all aimed at helping our partners succeed in every project.

Market Distribution

Global Market Presence, Diverse Client Base
Our products are trusted by clients across six continents, with a strong foothold in key regions:North America, South America, Eastern Europe, Western Europe, Northern Europe, Southern Europe, Africa, Mid East, Oceania. Meanwhile, we maintain a significant share in the domestic market, creating a balanced "local-to-global" sales network. 90% of our clients are international—proof of our product's adaptability and competitive edge.

 

Why Choose Us?
1. Global Standards: Compliant with international certifications, meeting diverse market demands.

2. Localized Support: Multilingual services and tailored solutions for seamless cross-border trade.

3. Reliable Supply Chain: Leveraging China's manufacturing strength for efficient production and on-time delivery.

→ Contact us today to explore partnership opportunities!

HOLIGHT Patch Cord Production Process /15 Steps

Every HOLIGHT fiber optic patch cord goes through a rigorous manufacturing process — from cable cutting, polishing, and assembly, to multiple rounds of inspection and testing.

This visual flowchart offers a glimpse into our quality-focused workflow, ensuring every connector meets the highest standards for insertion loss, return loss, and endface clarity.

Keyword Summary

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