20 Pin Machined IC Base 2.54mm Pitch Low-Power RS-485 Transceivers This is the PC410 Optocoupler

This is the PC410 Optocoupler manufactured by Toshiba

In an Arduino Nano

This LED strip has the benefit of being ultra-bright while running at low temperatures and consuming low power

causing it to "click" into place and stay there until enough effort is applied to move it

it is also known as a piano switch

20 Pin Machined IC Base 2.54mm Pitch Low-Power RS-485 Transceivers This is the PC410 Optocoupler20 Pin Machine tooled IC Socket, round IC pin sockets generally for preventing damage to IC's from soldering and while testing multiple circuits. IC sockets are used in Applications where integrated circuits (ICs) have short lead pins. They help in providing safe removal and insertion of IC chips. Features Tin Plated Leads High Quality Excellent Insulation Resistance High Precision Type Easy for IC Removal and Insertion Specification Connector Type