### CD214B-R2800: Electronic Component Overview The **CD214B-R2800** is a high-voltage, surface-mount (SMD) fast recovery rectifier diode manufactured by **Bourns**. It is designed for power conversion applications where high efficiency and high voltage tolerance are required. --- ### 1. Key Technical Specifications The following table outlines the core electrical characteristics of the device: | Parameter | Value | | :--- | :--- | | **Component Type** | Fast Recovery Rectifier | | **Package / Case** | SMB (DO-214AA) | | **Maximum Repetitive Peak Reverse Voltage ($V_{RRM}$)** | 800 V | | **Maximum Average Forward Current ($I_{F(AV)}$)** | 2.0 A | | **Maximum Forward Voltage ($V_F$)** | 1.7 V (at 2A) | | **Maximum Reverse Recovery Time ($t_{rr}$)** | 500 ns | | **Operating Temperature Range** | -55°C to +150°C | --- ### 2. Physical Construction and Packaging * **Package Style:** It utilizes the **CD214B** format, which corresponds to the industry-standard **SMB (DO-214AA)** footprint. * **Termination:** It features lead-free, solderable terminals, making it compatible with modern SMT (Surface Mount Technology) assembly lines. * **Polarity:** Indicated by a cathode band on the body of the component. --- ### 3. Functional Features * **High Voltage Handling:** With an 800V rating, it is suitable for AC-to-DC rectification in mains-powered devices. * **Fast Recovery:** The 500ns recovery time is significantly faster than standard rectifiers (like the 1N400x series), which reduces switching losses and heat generation. * **Low Profile:** The SMB package is designed for space-constrained PCB layouts while still providing adequate thermal dissipation. --- ### 4. Typical Applications The CD214B-R2800 is commonly used in the following circuits: 1. **Switching Power Supplies (SMPS):** Used for rectification in the secondary stage. 2. **Freewheeling Diodes:** Protects circuits from voltage spikes generated by inductive loads (motors, relays). 3. **DC-DC Converters:** Acts as a high-voltage bypass or clamping diode. 4. **Inverters:** Used in solar power or motor drive applications. --- ### 5. Identification (Part Number Breakdown) * **CD:** Chip Diode. * **214B:** SMB / DO-214AA Package. * **R:** Rectifier. * **2:** Current Rating (2.0 Amperes). * **800:** Voltage Rating (800 Volts).