The **R1MS-GH3T-R** is a high-performance **Surface Mount (SMD) Fast Recovery Rectifier Diode**. It is primarily used in power management circuits where high-speed switching and low power loss are critical requirements. --- ## 1. Key Specifications Below are the primary technical parameters for the R1MS-GH3T-R: | Parameter | Value | | :--- | :--- | | **Package Type** | SOD-123FL (Small Outline Diode) | | **Maximum Repetitive Peak Reverse Voltage ($V_{RRM}$)** | 1000V | | **Maximum Average Forward Rectified Current ($I_{F(AV)}$)** | 1.0A | | **Peak Forward Surge Current ($I_{FSM}$)** | 30A (8.3ms single half sine-wave) | | **Maximum Reverse Recovery Time ($t_{rr}$)** | 500ns | | **Forward Voltage Drop ($V_F$)** | ~1.3V @ 1.0A | | **Operating Junction Temperature** | -55°C to +150°C | --- ## 2. Component Features * **Fast Switching:** The "Fast Recovery" characteristic (500ns) allows it to handle high-frequency rectification with minimal switching losses. * **Low Profile Design:** The SOD-123FL package is specifically designed for space-constrained PCB layouts, offering a lower height compared to standard SMA packages. * **High Voltage Rating:** With a 1000V peak reverse voltage rating, it is robust enough for AC-DC rectification and high-voltage snubber circuits. * **Glass Passivated Chip Junction:** Ensures high reliability and stability over a wide temperature range. --- ## 3. Applications This part is commonly found in the following electronic systems: 1. **Switching Mode Power Supplies (SMPS):** Used for secondary-side rectification. 2. **Inverters:** For DC-to-AC conversion processes. 3. **Freewheeling Diode:** Protects circuits from voltage spikes generated by inductive loads (motors, relays). 4. **Lighting:** LED driver circuits and electronic ballasts. --- ## 4. Package Dimensions (SOD-123FL) The SOD-123FL package is a 2-pin surface mount device. ```text [Cathode Band] +-----------+ | | | [K] |-----|-----| [A] | | | +-----------+ ``` * **K (Cathode):** Marked with a polarity band. * **A (Anode):** The opposite terminal.