# 854 series integrated circuits

> hybrid ICs for fiber optic networks

**Wikidata**: [Q130549042](https://www.wikidata.org/wiki/Q130549042)  
**Source**: https://4ort.xyz/entity/854-series-integrated-circuits

## Summary
854 series integrated circuits are a Soviet-era series of hybrid integrated circuits designed for fiber-optic communication equipment. Manufactured by Oktyabr and documented around 1980, the series combines different semiconductor devices and passive components on a substrate and complies with the Soviet integrated circuit designation.

## Key Facts
- The 854 series is an integrated circuit series used for fiber-optic communication.  
- The series is a subclass of hybrid integrated circuit, a miniaturized circuit that combines different semiconductor devices and passive components on a substrate.  
- Manufacturer: Oktyabr.  
- Country of origin: Soviet Union.  
- Point in time documented: 1980.  
- The series complies with the Soviet integrated circuit designation.  
- Instance of: integrated circuit series.  
- Commons category: "854 series integrated circuits" with an associated image: https://commons.wikimedia.org/wiki/Special:FilePath/854УИ1Б_Октябрь_(1).jpg.  
- Sitelink count on source metadata: 1.

## FAQs
### Q: What are 854 series integrated circuits used for?
A: The 854 series is used in fiber-optic communication systems. They are intended for functions within fiber-optic networks.

### Q: Are 854 series devices hybrid or monolithic?
A: The 854 series are hybrid integrated circuits, meaning they combine different semiconductor devices and passive components on a substrate.

### Q: Who manufactured the 854 series and where?
A: The 854 series was manufactured by Oktyabr in the Soviet Union.

### Q: When do these 854 series ICs date from?
A: The series is documented with a point in time of 1980.

## Why It Matters
The 854 series represents a targeted class of Soviet-era hybrid integrated circuits developed for fiber-optic communication equipment. As hybrid ICs, they address the engineering need to integrate multiple semiconductor devices and passive components into compact assemblies, which is particularly important in optical network hardware where space, signal integrity, and component matching matter. Their compliance with the Soviet integrated circuit designation indicates formal recognition and standardization within Soviet electronics practice. Manufactured by Oktyabr and documented around 1980, the series provides a concrete example of how hybrid circuit technology was applied to optical communications in that era and region. For researchers, historians, or engineers studying the development of fiber-optic systems or Soviet semiconductor production, the 854 series is a specific artifact linking hybrid integration techniques to telecommunications applications.

## Notable For
- Purpose-built for fiber-optic communication systems rather than general-purpose electronics.  
- Hybrid construction: combines multiple semiconductor devices and passive components on a substrate.  
- Manufactured by Oktyabr in the Soviet Union.  
- Compliance with the Soviet integrated circuit designation.  
- Documented point in time around 1980.

## Body

### Overview
- Name: 854 series integrated circuits.  
- Description: hybrid ICs for fiber optic networks.  
- Role: components used in fiber-optic communication equipment.

### Classification and compliance
- Instance of: integrated circuit series.  
- Subclass of: hybrid integrated circuit.  
- Complies with: Soviet integrated circuit designation.

### Technical character (definition from parent class)
- Hybrid integrated circuit: a miniaturized electronic circuit combining different semiconductor devices and passive components on a substrate.  
- The 854 series follows this hybrid construction approach for fiber-optic applications.

### Manufacturer and origin
- Manufacturer: Oktyabr.  
- Country: Soviet Union.  
- Point in time (documentation): 1980.

### Usage
- Primary use: fiber-optic communication.  
- Intended application domain: fiber-optic networks and related telecommunications equipment.

### Documentation and media
- Image file available: https://commons.wikimedia.org/wiki/Special:FilePath/854УИ1Б_Октябрь_(1).jpg.  
- Commons category: "854 series integrated circuits".  
- Sitelink metadata count: 1.

### Related classes
- Parent class: hybrid integrated circuit (miniaturized circuits combining multiple device types on a substrate).  
- Related class: integrated circuit series (model series sharing the same part prefix).