The **2SC5096-R,LF** is a high-frequency NPN bipolar junction transistor (BJT) manufactured by Toshiba. It is specifically designed for low-noise amplification in the VHF to UHF frequency ranges. --- ### 1. Key Technical Specifications | Parameter | Symbol | Rating | Unit | | :--- | :--- | :--- | :--- | | **Collector-Base Voltage** | $V_{CBO}$ | 20 | V | | **Collector-Emitter Voltage** | $V_{CEO}$ | 10 | V | | **Emitter-Base Voltage** | $V_{EBO}$ | 1.5 | V | | **Collector Current** | $I_C$ | 15 | mA | | **Collector Power Dissipation** | $P_C$ | 100 | mW | | **Transition Frequency** | $f_T$ | 10 | GHz | | **DC Current Gain (hFE)** | $h_{FE}$ | 80 to 160 | (R Rank) | --- ### 2. Suffix Breakdown Understanding the specific part number is critical for sourcing and PCB design: * **2SC5096**: The base part number (Silicon NPN high-frequency transistor). * **-R**: Refers to the **hFE (DC Current Gain) Classification**. The "R" rank typically falls between 80 and 160. * **LF**: Indicates the **Lead-Free** (RoHS compliant) finish and usually refers to the tape-and-reel packaging specification. --- ### 3. Physical Characteristics * **Package Type**: S-Mini (SOT-323 / SC-70). * **Size**: Extremely small footprint, making it ideal for compact mobile devices. * **Pinout**: 1. Base 2. Emitter 3. Collector --- ### 4. Application Areas Due to its high transition frequency ($f_T$) of 10 GHz and low noise figure, this part is commonly used in: 1. **LNA (Low Noise Amplifiers)**: For GPS, Wi-Fi, and cellular front-ends. 2. **VCO (Voltage Controlled Oscillators)**: Providing stable oscillations in RF circuits. 3. **Mixers**: Frequency conversion in radio receivers. 4. **RF Pre-amplifiers**: Used in TV tuners and wireless communication handsets. --- ### 5. Schematic Symbol Example ```text Collector (3) | | / Base--|< (NPN) (1) | \ | > Emitter (2) ```