The SS19L-R2 is a rectifying diode manufactured by Taiwan Semiconductor. It is a Schottky type diode that has a surge current rating of 1A and a voltage rating of 90V. The diode has a surface mount design and is encapsulated in a subSMA package. It is designed to be used in circuits for various purposes, such as to protect against overvoltage, reverse-polarity, or transients, and to provide protection to sensitive components in a circuit. The diode has a wide range of applications, including power supply, automotive, communication systems, and consumer electronics. It is a low-cost solution for the needs of many circuits.