TLP521-4GB TLP521 2 Optocoupler TLP 521 Datasheet DIP16 High Density Mounting Phototransistor Optically Coupled Isolator

QYT was founded in 2008 in Shenzhen, China's very own Silicon Valley, just bordering Hong Kong. It starts its business from a very small company. In the past 8 years since its founding, QYT has grown into one of the largest electronic components distributors in China. Currently, QYT has over 900,000 customers and over 310 employees with around $150 Million in sales. QYT distributes over 200,000 products ranging from semiconductors to resistors, capacitors, diodes, inductors, connectors, transistors, sensors, providing design-chain services with EasyEDA too. EasyEDA is an easier and powerful online PCB design tool integrated QYT component. QYT acquired EasyEDA in March 2017. QYT has been confirmed by ISO 9001: 2015. A new warehouse of 60,000 SQM equipped with smooth pick-and-ship operation system is expected in 2019.