6N138 High Speed Optocoupler

6N138 High Speed Optocoupler 

The 6N138 is a high-speed optocoupler designed for digital signal isolation in applications requiring moderate-speed data transmission and high noise immunity. It consists of an infrared LED optically coupled to a high-gain photodetector transistor, providing a high Current Transfer Ratio (CTR) even at low input currents.

The 6N138 is similar to the 6N136 but offers much higher CTR, making it suitable for systems where strong output drive is required even with low LED current.

Click here to view the related products

Features :-

• High current transfer ratio, 300 %
• Low input current, 0.5 mA
• High output current, 60 mA
• Isolation test voltage, 5300 VRMS
• TTL compatible output, VOL = 0.1 V
• High common mode rejection, 500 V/?s
• Adjustable bandwidth-access to base

Applications

• Digital signal isolation between microcontroller and high-voltage systems
• RS232, RS485, RS422 interface isolation
• Switch-mode power supply (SMPS) feedback circuits
• Industrial automation and PLC I/O isolation
• Microcontroller to noisy environment signal isolation
• Isolated UART communication
• Motor drive and inverter control systems
• Power electronics and high-voltage interface isolation
• Logic level shifting with electrical isolation