The **SB460L-SMA-R** is a high-performance **Schottky Barrier Rectifier** diode. It is designed for high-frequency inversion, free-wheeling, and polarity protection applications where low forward voltage drop and fast switching are critical. --- ### ## Technical Specifications Below are the key electrical characteristics and absolute maximum ratings for the SB460L-SMA-R. | Parameter | Specification | Unit | | :--- | :--- | :--- | | **Maximum Repetitive Peak Reverse Voltage ($V_{RRM}$)** | 60 | V | | **Maximum Average Forward Rectified Current ($I_{O}$)** | 4.0 | A | | **Peak Forward Surge Current ($I_{FSM}$)** | 80 | A | | **Maximum Forward Voltage Drop ($V_{F}$)** | 0.52 (approx.) | V | | **Operating Junction Temperature ($T_{J}$)** | -55 to +150 | °C | | **Package Type** | SMA (DO-214AC) | - | --- ### ### Key Features and Construction 1. **Low Forward Voltage Drop:** This part is optimized for high efficiency. The "L" in the part number often signifies a "Low $V_F$" version, reducing power loss during conduction. 2. **Schottky Barrier Technology:** Unlike standard PN junction diodes, Schottky diodes use a metal-to-semiconductor junction. This results in: * Faster switching speeds. * Negligible reverse recovery time. 3. **SMA Surface Mount Package:** The part is housed in a standard **SMA (DO-214AC)** package, making it suitable for automated SMT (Surface Mount Technology) assembly. 4. **Guard Ring Protection:** Most parts in this series include a guard ring for transient protection and improved reliability against high-voltage stress. --- ### ### Typical Applications * **DC-DC Converters:** Used in switching power supplies to improve energy efficiency. * **Reverse Polarity Protection:** Protecting sensitive circuitry from batteries or power supplies connected backwards. * **Freewheeling Diode:** Used in inductive motor control or relay circuits to suppress voltage spikes. * **Clamping Circuits:** Limiting voltage levels in high-speed signal lines. --- ### ### Package Layout ```text _______ | | | ---| | |--- (A) |___|___| (K) (SMA) A = Anode K = Cathode (Marked with a band) ```