Circuit Connection

Date:2025-06-04 Categories:Product knowledge Hits:299 From:Guangdong Youfeng Microelectronics Co., Ltd


3. Circuit Connection

  • Forward Connection: Connect the anode (positive terminal) of the diode to the higher potential and the cathode (negative terminal) to the lower potential in the circuit. The cathode is usually marked with a stripe or other indicators on the rectifier diode      body.

  • Reverse Connection: In reverse-biased applications, ensure the reverse voltage does not exceed      the rated VR. Reverse diodes are often used for protection purposes, such as preventing reverse current flow that could damage other components.rectifier diode

  • Series and Parallel Connections:

  • Series Connection: When multiple     rectifier diode  are connected in series, the total reverse breakdown voltage is the      sum of the individual VRs, but the maximum forward current remains limited    by the lowest IF of the diodes.

  • Parallel Connection: Parallel   connection can increase the current-handling capability, but each diode      should have a series current-limiting resistor to balance the current  distribution due to manufacturing tolerances.

4. Installation and Handling

  • Heat Dissipation: For diodes with  higher power dissipation, install them on a heat sink to prevent  overheating. Ensure good thermal contact between therectifier diode  and the heat   sink, and use thermal grease if necessary. 

  • Lead Bending: If bending the leads   of the diode, do so at a sufficient distance from the body to avoid      mechanical stress that could damage the internal structure. Wait at least      10mm away from the package when bending.

  • Soldering: Use proper soldering      techniques with a soldering iron temperature between 250°C and 300°C. The      soldering time should be no more than 3 seconds to prevent thermal damage      to therectifier diode. Anti-static measures should be taken to avoid electrostatic      discharge (ESD) that may harm the device.


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