MXL5KP78CA Circuit Protection

Transient Voltage Suppressor Diodes (TVS) are an electro-mechanical device used for protecting electronic circuits from over-voltage. The MXL5KP78CA is a uni-directional protection diode, designed for easy and robust circuit integration. It can provide fast response to electrical surge and have low leakage current. This device is suitable for both commercial and automotive applications.

Features

• Voltage Breakdown: 5.5 V
• Clamping Voltage: 8.5 V
• Breakdown Current: 6 mA
• Reverse Leakage Current: 2.0 µA
• Low Capacitance ESD Protection
• High Level of Protection Against Transients
• Low Power Loss

Application

• Cell phones
• Digital cameras
• Tablets
• PDA\'s
• Car audio systems
• DC-DC converters
• EPOS terminals
• Laptops
• Game consoles

Working Principle

The MXL5KP78CA is a uni-directional, Metal-Oxide-Avalanche protection diode. It is composed of two back-to-back avalanche diodes, connected in series configuration. These series diodes provide a voltage reference that limits the voltage to a predetermined level. This limits the over-voltage transient current and allows a high level of protection against transients.

When the supply voltage reaches the breakdown voltage of the MXL5KP78CA, the diode begins to conduct current. This causes current to flow the avalanche breakdown of the diodes. This results in a clamping voltage that is higher than the breakdown voltage of the MXL5KP78CA. This limits the voltage transient and protects the circuit from over-voltage. The MXL5KP78CA also has an ultra-fast response time, allowing it to provide maximum protection against transients.