The **ES1CG-SMA-R** is a high-efficiency, surface-mount **Super Fast Recovery Rectifier** diode. It is commonly used in power management circuits where high-speed switching and low power loss are critical. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical characteristics of the ES1CG: | Parameter | Specification | | :--- | :--- | | **Diode Type** | Super Fast Recovery Rectifier | | **Package Type** | SMA (DO-214AC) | | **Max. Repetitive Reverse Voltage ($V_{RRM}$)** | 150V | | **Max. Average Forward Current ($I_{F(AV)}$)** | 1.0 Amp | | **Max. Forward Voltage Drop ($V_F$)** | 0.95V @ 1.0A | | **Reverse Recovery Time ($t_{rr}$)** | 35 ns (Nanoseconds) | | **Operating Temperature Range** | -55°C to +150°C | --- ### 2. Breakdown of the Part Name The nomenclature typically follows industry standards for surface mount diodes: * **ES1**: Series identifier (Super Fast Efficient Rectifier, 1 Amp). * **C**: Voltage rating code (C usually denotes 150V). * **G**: Often indicates "Glass Passivated" chip junction for increased reliability. * **SMA**: Refers to the physical package size (Small Module Type A). * **R**: Generally indicates the tape and reel packaging format. --- ### 3. Features and Applications #### Features * **Ultra-Fast Switching:** The 35ns recovery time minimizes switching losses in high-frequency applications. * **Glass Passivated Junction:** Provides high reliability and stability against environmental factors. * **Low Profile:** The SMA package is ideal for automated surface mount assembly on dense PCBs. #### Typical Applications 1. **Switching Mode Power Supplies (SMPS):** Used for output rectification. 2. **DC-DC Converters:** Acts as a freewheeling diode. 3. **Inverters:** Manages high-speed polarity switching. 4. **Reverse Polarity Protection:** Protects sensitive DC circuits from incorrect battery insertion. --- ### 4. Circuit Symbol and Footprint The component follows the standard diode schematic symbol: ```text Anode (A) --------|>|-------- Cathode (K) (Direction of Current) ``` *Note: On the physical SMA package, a band/stripe indicates the **Cathode** side.* ---