77311-101T03LF Datasheet/PDF77311-101T03LF Application Field and Working Principle
77311-101T03LF is a type of header connector belonging to the rectangular connector category. It is part of the right angle headers male pins, that are used for high-density mounting on PWBs(Printed Wiring boards).
The 77311-101T03LF header is a HRS(Hirose Electric) connector and comes with an Insulation displacement contact (IDC) and a closed-end insulated housing. It has an isolation displacement connector IDC terminal with a pitch of 2.54mm (0.1 inch) and a low profile height of only 3.9mm, making it ideally suited for high-density PWBs.
The connector also provides a reliable and secure connection as its housing is equipped with contact retention tongue and grooves for greater connection stability.
These HRS 77311-101T03LF headers have the below main features:
- Low profile and pitch of 2.54mm (0.1 inch).
- Insulation displacement for HDI boards.
- Closed-end insulated housing with contact retention tongue and grooves.
- Strain-relief design for PCB connections.
- Compatible with lead-free and vacuum reflow processes.
The 77311-101T03LF connectors are widely used in the automotive industry, hard disk drives, personal computers, medical technology, industrial control systems, and telecommunications. They are also suitable for battery packs, power supplies, fan controllers, and other applications where a low profile and stable connection are required.
Working Principle
The working principle of the HRS 77311-101T03LF is quite simple. The connector features a housing with contact retention tongue and grooves for a secure connection. This contact retention provides solid electrical connection between the component and the PCB. When the connector is assembled, its closed end insulated housing protects the connection from moisture and dust.
The insulation displacement contact (IDC) is an important factor of the connector. It uses electrical insulation to provide a reliable connection which is a key requirement for a connector suitable for applications in harsh environments.
To ensure correct connection, the IDC terminal is securely attached to the PCB trace using the strain-relief design. This also provides protection from temperature and mechanical stress, making the connector suitable for plug-n-play applications.