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The TLP521-2XGB is an optocoupler manufactured by ISOCOM. Below are its specifications, descriptions, and features:

Specifications:

• Number of Channels: 2
• Input Type: LED
• Output Type: Phototransistor
• Isolation Voltage: 5000 Vrms (min)
• Collector-Emitter Voltage (VCEO): 55 V (max)
• Collector Current (IC): 50 mA (max)
• Current Transfer Ratio (CTR): 50% (min) at 5 mA input current
• Response Time (tr/tf): 3 μs / 4.7 μs (typical)
• Operating Temperature Range: -55°C to +110°C
• Package: DIP-8

Descriptions:

The TLP521-2XGB is a dual-channel photocoupler consisting of a GaAs infrared LED optically coupled to a phototransistor. It provides electrical isolation between input and output circuits, making it suitable for noise suppression and signal transmission in high-voltage applications.

Features:

• High Isolation Voltage: Ensures safety in high-voltage environments.
• Dual-Channel Configuration: Allows independent signal transmission.
• Reliable Performance: Stable CTR over a wide temperature range.
• Compact DIP-8 Package: Easy PCB mounting.
• Wide Operating Temperature Range: Suitable for industrial applications.

This optocoupler is commonly used in power supply feedback, industrial controls, and communication interfaces requiring electrical isolation.