The 20CTQ045STRLPBF is a dual common cathode Schottky Rectifier designed and manufactured by Vishay. This rectifier array features low forward voltage drop and high surge current capability, making it suitable for various high-frequency switching power supplies and other applications.

Applications

• Switching Power Supplies: Secondary rectification.
• DC-DC Converters: Output rectification.
• Freewheeling Diodes: Protection against inductive loads.
• Polarity Protection: Preventing reverse voltage damage.
• High-Frequency Inverters: Rectification stages.

Features

• Low Forward Voltage Drop: Reduces power dissipation and improves efficiency.
• High Surge Current Capability: Withstands transient current spikes.
• High-Frequency Operation: Suitable for high-frequency applications due to fast switching speed.
• RoHS Compliant: Complies with Restriction of Hazardous Substances directive.
• Lead-Free Finish: Environmentally friendly.
• Common Cathode Configuration: Simplifies circuit design in some applications.

Benefits

• Improved Efficiency: Low forward voltage drop minimizes power loss, increasing overall efficiency.
• Enhanced Reliability: High surge current capability protects the device from damage due to transient currents.
• Reduced Heat Dissipation: Lower power dissipation reduces the need for heat sinks.
• Environmentally Friendly: RoHS compliant and lead-free, reducing environmental impact.
• Simplified Design: Common cathode configuration simplifies circuit layout and reduces component count.

Additional Details

The 20CTQ045STRLPBF has a repetitive peak reverse voltage of 45V and a forward current of 20A (10A per diode). It is typically available in a D2PAK (TO-263) package. Key specifications include forward voltage at different current levels, reverse leakage current, and operating temperature range. The Schottky barrier construction results in a very fast switching speed, which is essential in high-frequency applications. The device is designed for surface mount applications and is supplied on tape and reel.