749699-8

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D-Sub connectors are a type of electrical connector whose use as data, power or audio connectors is increasingly popular. The given model 749699-8 is a 9-pin female D-Sub connector. It is also known as a DE9 connector, derived from the German D-Sub designation of D-Sub pins.

Application Field

The 749699-8 connector is mainly used for a variety of internal, external, and multimedia connections. Internal uses include control panels, wiring of industrial machinery, and some computer peripherals.In external applications, these connectors are typically found in data communication and controlling systems like sequential control systems. In addition, these connectors are also used widely as serial, audio, and video interfaces.

Working Principle

The 749699-8 connector features a female 9-pin connection configuration with a 15 degree orientation. Its machined contacts are made from brass with a hard gold plating. It has a contact resistance of 10mOhms initial at 10mV and a current rating of 1A. The insulation resistance of these contacts is 1000MOhms at 500Vdc.

The beryllium copper stamped contacts of the DE9 connector provide low insertion and extraction force (with a range of 15-30N). The coupling mechanism uses a jackscrew, spring and nut mechanism that provides an audible ‘click’ when insertion is complete. The connectors are also ROHS2 compliant.

The 749699-8 DE9 connector has a temperature range from -55°C to +105°C, with optional higher or lower ratings available. It is also a low-profile device and it mates with plugs compatible with BS9533, EN60510, IEC/EN 60906-4, and MIL-DTL-24308.

The advantage of using the 749699-8 connector lies in its flexibility and reliability. Its low cost and easy installation make it ideal for many applications. It is also very resistant to shock, vibration, and environmental hazards. Additionally, since it has a secure coupling mechanism, it can withstand up to 5G to 10G dynamic shock and vibrations which is important in data, power, and audio connections.

In conclusion, the 749699-8 connector is a female 9-pin D-Sub connector which is robust, cost-effective, and reliable. It is suitable for a wide range of applications, including data communication, control and monitoring systems, audio-visual systems, and industrial machinery. Its low profile design and secure coupling mechanism make it an ideal choice for most applications.

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