Sc & FC Adjustable Type 1– 30dB Optical Fiber Attenuator

• Customization: Available
• Transmission Medium: Single-Mode
• Structure: Sc & FC
• Model NO.: HL-SC/FC-Adj
• Number of Cores: /
• Ferrule Endface: Upc / APC
• Shape: Rectangular
• Fabrication Process: Based on The Information
• Application: ODF / Network Equipment / Fiber Module
• Light Source TYPE: Laser Diode
• Connector Type: Sc & FC
• Brand: OEM
• Connector Gender: Adjustable
• Attenuation Range: 1-30dB
• Fiber Type: Singlemode
• Sample: Available Upon Request
• Transport Package: Refer to Packing List
• Specification: Refer to packing list
• Trademark: HOLIGHT
• Origin: China
• HS Code: 85447000
• Production Capacity: 50, 000 PCS/Month
• Package Size: 48.00cm * 48.00cm * 30.00cm
• Package Gross Weight: 1.000kg

Product Description

SC & FC Adjustable Type 1–30dB Optical Fiber Attenuator

The SC & FC Adjustable Type Fiber Optic Attenuator is a passive device used to reduce the optical power in fiber networks. Offering variable attenuation levels from 1 dB to 30 dB, it supports precise power control during testing, calibration, and network balancing. Compatible with SC and FC connectors in both UPC and APC polish types.

Features

Applications

• Adjustable attenuation range: 1 to 30 dB;
• High repeatability and low return loss;
• Excellent environmental and mechanical stability;
• Durable structure with >1000 mating cycles;
• Available in simplex form for easy integration.

• Optical power balancing in data centers;
• Telecommunication systems;
• CATV networks;
• PON/FTTH networks;
• Equipment testing and calibration;
• Optical loopback and reflection testing.

Product Specifications

Connector Type	SC / FC	Fiber Type	Singlemode
Connector Gender	Adjustable	Attenuation Range	1-30dB
Polarization Dependent Loss	≤0.2dB	Temperature Range	-40-80°C(≤0.2dB in insertion loss)
Available Wavelengths	1310nm,1550nm,1310&1550nm	Return Loss	≥50dB(UPC); ≥60dB(APC)
Attenuation Accuracy	±0.5dB(1dB-10dB); ±1.0dB(11dB-25dB)
Wavelength Dependence	≤0.3dB Change in insertion loss for 1310-1550nm

Customization Options

Attenuation range precision;

OEM logo and private label printing;
Packaging style and barcode labeling.

Quality Assurance

100% tested for attenuation accuracy and return loss. Manufactured under ISO9001 with RoHS compliance.

Packing & Delivery

Standard export carton with protective packing;
Custom logo or barcode label available;
Lead time: 5–10 working days;
Delivery via DHL/FedEx/UPS or sea freight.

Customer Reviews

"Highly precise attenuator with good build quality. Worked perfectly in our testing lab."

"The adjustable range is very accurate and easy to use. Great for field calibration."

"OEM packaging was done exactly as requested. Very satisfied with the consistency."

"The product is stable and consistent under different temperatures. We reordered 5 times!"

Related Products

Buyer Benefits

Exhibitions We Attended

No MOQ for most models;
Free sample available for quality testing;
Highly competitive price points;
Fast and flexible production timelines;
OEM/ODM customization welcomed.

HOLIGHT has participated in:
• ICT Poland -PL
• Cairo ICT -EG
• TechEXPO USA
• LEAP Saudi Arabia
• Expo ISP Peru

Keyword Summary

SC Adjustable Attenuator, FC Variable Attenuator, 1–30dB Optical Attenuator, Fiber Power Control, UPC APC Attenuator, Optical Test Equipment, Telecom Fiber Attenuator, SC FC Connector Attenuator, Adjustable Fiber Device, Variable Loss Attenuator

FAQ Section

Q1: Is this attenuator suitable for singlemode or multimode fiber?
A1: It's designed primarily for singlemode applications (1260–1650 nm), but can also work in some multimode environments.

Q2: Can I request a different attenuation range or design?
A2: Yes, custom attenuation ranges and OEM designs are available.

Q3: What's the delivery time for 1000 pieces?

A3: Around 5–7 working days, depending on current production load.

Q4: Are UPC and APC versions both available?
A4: Yes, both UPC and APC polish types are available for SC and FC connectors.

Q5: Can I test a sample before placing a bulk order?
A5: Yes, we provide free samples upon request (freight collect).

Q6: How is the attenuation adjusted?
A6: The device uses a precise internal mechanical tuning system, adjusted via an external dial or screw.

Q7: Do you offer OEM packaging and private label?
A7: Yes, full OEM service including labels, logos, and packaging is supported.

Q8: What's the typical return loss value?
A8: ≥50 dB for UPC, and ≥60 dB for APC versions.