## CD214B-R2100 Electronic Component Overview The **CD214B-R2100** is a Surface Mount (SMD) Fast Recovery Rectifier Diode manufactured by Bourns. It is designed for rectification in power supplies, inverters, and free-wheeling applications where fast switching speeds and high efficiency are required. --- ### 1. Key Technical Specifications Below are the primary electrical characteristics of the device: | Parameter | Value | Unit | | :--- | :--- | :--- | | **Repetitive Peak Reverse Voltage ($V_{RRM}$)** | 100 | Volts | | **Average Forward Current ($I_{F(AV)}$)** | 2.0 | Amperes | | **Forward Voltage Drop ($V_F$) @ 2A** | 1.15 | Volts (Max) | | **Reverse Recovery Time ($t_{rr}$)** | 150 | Nanoseconds | | **Operating Temperature Range** | -55 to +150 | °C | | **Package Type** | SMB (DO-214AA) | - | --- ### 2. Functional Characteristics * **Fast Recovery:** Unlike standard rectifiers, this diode features a fast recovery time ($t_{rr}$), which minimizes switching losses and heat generation in high-frequency circuits. * **High Current Capability:** Despite its small footprint, it can handle a continuous average current of 2 Amperes. * **Low Leakage:** It exhibits very low reverse leakage current, improving the overall efficiency of the power stage. * **Surface Mount Design:** The SMB (DO-214AA) package is optimized for automated assembly processes. --- ### 3. Pinout and Physical Construction The device consists of a PN junction housed in a molded plastic case. 1. **Cathode (-):** Indicated by a color band or notch on the package. 2. **Anode (+):** The opposite terminal. --- ### 4. Common Applications * **DC-DC Converters:** Used as a catch diode or output rectifier. * **Power Supplies:** Converting AC to DC in compact adapters. * **Inverters:** High-speed switching for motor control or solar power. * **Free-wheeling Diodes:** Protecting circuits from inductive spikes (back EMF) in relays or motors. ---