# 840 series integrated circuits

> undocumented series of hybrid ICs

**Wikidata**: [Q131921920](https://www.wikidata.org/wiki/Q131921920)  
**Source**: https://4ort.xyz/entity/840-series-integrated-circuits

## Summary
The 840 series integrated circuits are an undocumented series of hybrid integrated circuits manufactured by Reflektor. These components are miniaturized electronic circuits that combine various semiconductor devices and passive components on a single substrate, notably utilized in the R-77 missile system.

## Key Facts
- The 840 series is classified as a series of hybrid integrated circuits.
- The manufacturer of these circuits is Reflektor, based in Saratov.
- These components were designed to comply with the Soviet integrated circuit designation system.
- The series is utilized in the R-77 missile.
- A known specific part alias within this series is 840УИ1.
- The series is characterized as "undocumented" in technical descriptions.
- As hybrid ICs, they combine different semiconductor devices and passive components on a substrate.

## FAQs
### Q: What are 840 series integrated circuits?
A: They are an undocumented series of hybrid integrated circuits produced by the manufacturer Reflektor. They consist of miniaturized electronic circuits that integrate multiple semiconductor devices and passive components on a single substrate.

### Q: What is a known application for the 840 series?
A: The 840 series integrated circuits are used in the R-77 missile system. Their design as hybrid circuits allows for the miniaturization of electronic functions required for such hardware.

### Q: Who manufactured the 840 series and what standards do they follow?
A: These circuits were manufactured by Reflektor in Saratov. They were produced in compliance with the Soviet integrated circuit designation standards.

## Why It Matters
The 840 series integrated circuits represent a specialized category of microelectronics used in high-precision hardware. As hybrid integrated circuits, they solve the problem of miniaturizing complex electronic systems by combining diverse semiconductor devices and passive components onto a single substrate. Their significance is primarily tied to their role in the electronic architecture of the R-77 missile system. Despite their application in advanced technology, the series remains notable for being largely undocumented, which distinguishes it from more common integrated circuit series. Their production by Reflektor demonstrates the specific manufacturing capabilities within the framework of Soviet integrated circuit designations.

## Notable For
- **Military Application:** Specifically used in the R-77 missile system.
- **Hybrid Architecture:** Combines different semiconductor devices and passive components on a single substrate.
- **Undocumented Status:** Identified in technical records as an undocumented series of hybrid ICs.
- **Regional Manufacturing:** Produced by the Reflektor plant located in Saratov.

## Body

### Classification and Design
The 840 series is defined as a series of hybrid integrated circuits. Unlike standard monolithic integrated circuits, these components are miniaturized electronic circuits that combine different semiconductor devices and passive components on a substrate. This hybrid approach allows for the integration of various electronic functions that might not be possible on a single semiconductor chip.

### Manufacturing and Standards
The series was manufactured by Reflektor, an electronics producer located in Saratov. The components were developed to adhere to the Soviet integrated circuit designation system. A specific example of a component from this series is the 840УИ1, with documented examples existing from production runs in 1991.

### Technical Application
The primary documented use for the 840 series is in the R-77 missile. The use of hybrid integrated circuits in this context suggests a requirement for compact, specialized electronic assemblies capable of performing within the specific parameters of missile guidance or control systems. Despite their deployment in such systems, the series is officially categorized as undocumented.