89891-420H

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Rectangular connectors are commonly used in electronic products for the purpose of establishing connections between conductors and various circuit components. These connectors come in a variety of sizes and configurations, with the 89891-420H being a particularly useful model for power, signal, and data connections. Understanding the 89891-420H\'s application field and working principle is key to gaining a better understanding of what these rectangular connectors offer.

The 89891-420H is a 21 position, 0.100" centerline header with black housing and gold plated contacts. It is designed to accept flat ribbon cable, AWG 30-28, discrete wire (UL1007 or UL1569), or discrete wire (UL3266). The pin length is 0.100" and the contact mating area is 1.27±0.16mm. Its base material is PBT, and it is also available in other colors such as green and yellow.

The 89891-420H is a reliable mating solution for many applications, particularly in automotive, medical, communication, computer, consumer, and audio/video applications. Its reliability is due to its robust flame retardant design, which is able to operate at high temperatures up to 105°C and with a variety of contact materials such as phosphor bronze and aluminum. It is also resistant to oil and dust, further adding to its reliability. Furthermore, it conforms to the Halogen Free Directive and the RoHS Directive.

Aside from its wide range of application fields, the 89891-420H is also designed with a number of specific features that improve the electrical performance of the connector. For instance, it offers low contact resistance (up to 100mΩ) and high current-carrying capacity (up to 5 Amps). It is further designed with robust and reliable contacts that guarantee secure mating and positive locks. The 89891-420H is also designed with distortion-proof shields to ensure correct and reliable connections. Furthermore, it has a robust housing that can withstand vibration and shock, further increasing its reliability.

The working principle of the 89891-420H is simple and straightforward. It is a 2-part connector consisting of a header and a receptacle that fits into the header. The header contains several contact pins, which are aligned precisely with matching contacts in the receptacle. The mating contacts are placed in the precisely designed terminals. When the two parts are mated, the contacts between the terminals will make an electrical connection. The contact pins are covered with a protective shield, which helps to keep out dust and moisture. The header and the receptacle are held together by a latch, which keeps the connection secure and prevents accidental disconnects.

Overall, the 89891-420H is a reliable and robust connector system that is suitable for many applications that require reliable power, signal, and data connections. It offers a number of features such as low contact resistance, high current-carrying capacity, and robust contacts, along with a reliable flame-retardant design. Its robust housing is able to withstand vibration and shock, while its distortion-proof shields ensure secure and reliable connections. The contact pins are covered with a protective shield, which helps to keep out dust and moisture. Understanding the application field and workings of the 89891-420H will help you select the right connector for your needs.

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