# 142 series integrated circuits

> Soviet series of linear voltage regulator circuits

**Wikidata**: [Q115793935](https://www.wikidata.org/wiki/Q115793935)  
**Source**: https://4ort.xyz/entity/142-series-integrated-circuits

## Summary
The 142 series integrated circuits are a Soviet series of linear voltage regulator circuits that originated in 1970. Developed within the Soviet Union and later maintained by Russia, this series belongs to the broader class of integrated circuits formed on semiconductor material. The designs were based on or related to Western counterparts, specifically the 78xx series, the TL431 precision shunt regulator, and the μA723 voltage regulator.

## Key Facts
*   **Inception:** The series was established in 1970.
*   **Classification:** It is an instance of an "integrated circuit series" and a subclass of "voltage regulator" and "integrated circuit."
*   **Function:** The circuits function as linear voltage regulators.
*   **Geographic Origin:** The series originated in the **Soviet Union** (until December 25, 1991) and subsequently in **Russia** (starting December 25, 1991).
*   **Technical Basis:** The series is based on the **78xx**, **TL431**, and **μA723** integrated circuit designs.
*   **Designation Standard:** The series complies with the "Soviet integrated circuit designation" system.
*   **Related Entities:** It is related to the TL431 (incepted 1977) and the general 78xx series of voltage regulators.

## FAQs
### Q: What is the primary function of the 142 series integrated circuits?
A: The 142 series functions as linear voltage regulators, which are electronic circuits designed to maintain a constant voltage level.

### Q: When was the 142 series introduced?
A: The 142 series was introduced in 1970.

### Q: Which established integrated circuit designs influenced the 142 series?
A: The 142 series is based on the 78xx series, the TL431 precision shunt regulator, and the μA723 voltage regulator integrated circuit.

### Q: Under which naming convention does the 142 series fall?
A: The series complies with the Soviet integrated circuit designation system.

## Why It Matters
The 142 series integrated circuits represent a critical component in the history of Soviet and Russian electronics engineering. As a linear voltage regulator series, it played a fundamental role in power management for electronic hardware, ensuring stable voltage supply for devices—a necessity for the reliable operation of everything from consumer electronics to industrial machinery.

Historically, the series is significant because it illustrates the technological adaptation and development strategies of the Soviet semiconductor industry. By basing the 142 series on prominent Western designs such as the 78xx, TL431, and μA723, Soviet engineers created functional equivalents that adhered to the "Soviet integrated circuit designation" system. This allowed for domestic production and reduced reliance on foreign imports during the Cold War era. Following the dissolution of the Soviet Union in 1991, the series continued to be relevant in Russia, bridging the gap between legacy Soviet hardware and modern Russian electronic manufacturing. Its longevity, spanning from 1970 to the present-day Russian Federation, highlights its enduring utility in the field of electronics.

## Notable For
*   **Soviet Standardization:** Being a key series compliant with the Soviet integrated circuit designation system.
*   **Design Lineage:** Notably based on the industry-standard 78xx and μA723 voltage regulators, as well as the TL431.
*   **Historical Continuity:** Maintaining production relevance through the transition from the Soviet Union to the Russian Federation.
*   **Specific Function:** Distinguished as a series dedicated specifically to linear voltage regulation.

## Body
### Definition and Classification
The 142 series integrated circuits are a model series of integrated circuits sharing the same part prefix. They are classified as a subclass of both "voltage regulator" and "integrated circuit" (an electronic circuit formed on a small, flat piece of semiconductor material). Specifically, they are categorized as linear integrated circuits designed for voltage regulation.

### Historical Context
*   **Inception:** The series was officially incepted in **1970**.
*   **Soviet Era:** The series was the standard in the Soviet Union until the state's dissolution on **December 25, 1991**.
*   **Russian Federation:** Following the dissolution, the series continued under the jurisdiction of Russia, with the country designation applying from December 25, 1991, onwards.

### Technical Foundations and Relations
The development of the 142 series is directly linked to several major global integrated circuit families. Structured data indicates the series is **based on**:
*   **78xx:** A widely used series of simple fixed voltage regulator integrated circuits.
*   **TL431:** A linear integrated circuit functioning as a precision shunt regulator (incepted 1977).
*   **μA723:** A voltage regulator integrated circuit.

This lineage places the 142 series within the domain of established linear regulation technology adapted for Soviet and Russian manufacturing requirements. Visual documentation of these components, such as the 142ЕН1Б variant, is archived under the "142 series integrated circuits" category on Wikimedia Commons.