What Is a DIN Connector?
DIN connectors are connectors that adhere to the DIN standard, established by German industry. These connectors are typically round, with a standard diameter of 13.2 mm, although there are variants known as two-piece connectors. Mini-DIN connectors are smaller, round connectors with a 9.5 mm diameter.
Circular DIN connectors range from three to several pins. Some older models, like speaker DIN connectors, feature two pins. These connectors usually lack a locking mechanism, making them prone to disconnecting if pulled forcefully. Both male and female types exist, connecting based on the plug’s shape.
Uses of DIN Connectors
DIN connectors are primarily used in audio equipment for stereo signal input and output, connecting devices like recorders, remote controls, car audio systems, and speakers. They are also found in electronic musical instruments, computers, televisions, video game consoles, and microphones. In personal computers, two-piece connectors facilitate the connection between electronic circuit boards. These square-shaped connectors come in various pin counts and pitches.
Principle of DIN Connectors
DIN connectors comprise a male plug and a female socket. Each connector consists of a housing and contact parts. The housing and contacts are designed with slightly different shapes to ensure a secure connection between male and female connectors. When connected, the contacts align, establishing an electrical connection.
Each pin in circular DIN connectors transmits a separate signal, enabling complex connections like those in game consoles, which carry audio, ground, video, and voltage signals.
Structure of DIN Connectors
A DIN connector includes both housing and contact parts.
1. Housing Part
The housing encases the contacts and is typically made from an insulating material like plastic to protect the contacts.
2. Contact Part
The contact part is responsible for establishing the electrical connection upon connector engagement. Depending on the connector type, a shell or an eyelet might be used for additional protection or connection.
Types of DIN Connectors
DIN connectors vary in shape, including circular, speaker, small circular, and two-piece connectors. Circular connectors are 13.2 mm in diameter and range from 3 to several pins, used in applications such as audio equipment, game consoles, and PC keyboards. Speaker DIN connectors, which have 2 pins, were traditionally used for speakers and are designed with distinct pin shapes to prevent misalignment.
Other Information on DIN Connectors
DIN Standard
The DIN standard, defined by the German Standards Institute, covers not just connectors but also specifications for products like car navigation systems. Germany actively promotes standardization to advance business and society, allowing proposals from various entities, including companies, research institutes, and consumers.