# Optical attenuator CBO SFA22BK1 Singlemode 1 dB — fixed in-line fiber attenuator

**URL:** https://aio.lv/en/product--blueoptics-sfa22bk1--4467312
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFA22BK1
**EAN:** 4063232044873
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 24.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfa22bk1--4467312

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

CBO SFA22BK1 is a fixed in-line optical attenuator for singlemode fiber with 1 dB attenuation. Designed to reduce signal power in fiber-optic links, it helps prevent receiver saturation and optimise link budgets. Suitable for testing, installation and maintenance of telecom, datacom and CATV networks where precise, low-loss attenuation is required.

## Long description

The BlueOptics CBO SFA22BK1 Singlemode 1 dB fixed in-line optical attenuator is designed to reduce optical signal power in singlemode fiber links by a precise 1 dB. It is intended for insertion into fiber runs to prevent receiver saturation, balance channel power and fine-tune link budgets during installation, maintenance and testing of telecom, datacom and CATV networks. The attenuator is compact, passive and provides a stable, wavelength-independent attenuation level suitable for singlemode systems.
Advantages
This fixed in-line fiber attenuator offers a defined 1 dB attenuation with low insertion loss beyond the specified attenuation, maintaining signal integrity in singlemode networks. Its passive design requires no power and provides predictable, long-term performance with minimal back reflection. The compact inline form factor simplifies integration into existing patchcords or fiber trunks without additional mountings or adapters.
Suitable for
Balancing optical power between transmitter and receiver in singlemode links
Preventing receiver saturation in high-power fiber systems
Field testing and commissioning of telecom, datacom and CATV networks
Laboratory measurements where a small, fixed attenuation is required
Key specifications
Attenuation: fixed 1 dB
Fiber type: singlemode
Form factor: in-line (connectorized passive attenuator)
Typical insertion loss beyond attenuation: low (designed for minimal excess loss)
Return loss: designed to provide low back reflection suitable for singlemode applications
Operating wavelength: compatible with standard singlemode telecom wavelengths
How to use
Install the attenuator inline by connecting it between two compatible singlemode connectors or patchcords, ensuring proper connector types and clean endfaces before mating. Place the attenuator as close as practical to the receiver when preventing saturation, or at the designated test point during commissioning. After insertion, verify optical power levels and system performance to confirm the expected 1 dB reduction and adjust link components if necessary.
Usage recommendations
Prior to installation, clean all connector endfaces and inspect for damage to ensure low insertion loss and reliable performance. Use the attenuator within the specified operating wavelength range and avoid subjecting the unit to excessive mechanical stress or bending. For precision measurements, allow the link to stabilize thermally before recording power levels.

## FAQ

### How much does the Optical attenuator CBO SFA22BK1 Singlemode 1 dB cost, and is it available for purchase?

The price is 29.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 60 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All BlueOptics products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized BlueOptics service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/4467312/59855566_large.webp