The **SWT8-R2NTR** is an electronic component manufactured by **Diotec Semiconductor**. It is a **Surface Mount Device (SMD) Power TVS (Transient Voltage Suppressor) Diode**, specifically designed to protect sensitive electronics from voltage spikes and ESD (Electrostatic Discharge). --- ## 1. Core Technical Specifications The following table highlights the primary electrical characteristics of the SWT8-R2NTR: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Component Type** | TVS Diode | Transient Voltage Suppressor | | **Package / Case** | SOD-123FL | Low profile, surface mount | | **Reverse Standoff Voltage ($V_{WM}$)** | 8.0 V | Maximum working voltage | | **Breakdown Voltage ($V_{BR}$)** | 8.89 V to 9.83 V | Point where the diode starts conducting | | **Peak Pulse Power ($P_{PP}$)** | 200 Watts | Based on 10/1000 µs waveform | | **Polarity** | Unidirectional | Protects in one direction | | **Clamping Voltage ($V_C$)** | 13.6 V | Max voltage during a pulse | --- ## 2. Key Features and Benefits * **Small Footprint:** The **SOD-123FL** package is extremely thin (approx. 1.0mm height), making it ideal for space-constrained PCB designs like smartphones or IoT devices. * **Fast Response Time:** Provides near-instantaneous clamping (typically less than 1.0 ns), protecting components before a surge can cause damage. * **Low Leakage:** It has a very low reverse leakage current ($I_R$), which helps in maintaining battery life in portable electronics. * **Halogen-Free:** Complies with environmental standards like RoHS and REACH. --- ## 3. Typical Applications The SWT8-R2NTR is commonly found in the following circuits: 1. **Power Supply Lines:** Protecting DC rails from inductive switching spikes. 2. **I/O Interfaces:** Safeguarding data ports (USB, HDMI, etc.) against ESD from human contact. 3. **Automotive Electronics:** Protection for sensors and low-voltage control units (ECUs). 4. **Consumer Electronics:** Used in laptops, tablets, and wearables. --- ## 4. Part Number Breakdown While manufacturer-specific, the code usually translates as follows: * **SWT8:** The series designation and working voltage (8V). * **R2:** Power rating indicator (often refers to the 200W class). * **NTR:** Packaging code (N-type, Tape and Reel).