The **2SC1567A** is a high-voltage, NPN epitaxial silicon transistor. It is primarily designed for use in video output stages of television receivers and high-frequency amplification circuits. --- ### ## Technical Specifications Below are the key electrical characteristics and maximum ratings for the 2SC1567A: | Characteristic | Symbol | Value | Unit | | :--- | :--- | :--- | :--- | | **Collector-Base Voltage** | $V_{CBO}$ | 120 | V | | **Collector-Emitter Voltage** | $V_{CEO}$ | 100 | V | | **Emitter-Base Voltage** | $V_{EBO}$ | 5.0 | V | | **Collector Current (DC)** | $I_C$ | 0.5 | A | | **Collector Power Dissipation** | $P_C$ | 1.2 | W | | **Junction Temperature** | $T_j$ | 150 | °C | | **DC Current Gain** | $h_{FE}$ | 60 - 320 | - | | **Transition Frequency** | $f_T$ | 120 | MHz | --- ### ## Pinout Configuration The 2SC1567A is typically housed in a **TO-126** (or similar Power Mini) package. Looking at the flat side (the side with the part number) with the leads pointing down, the pinout is as follows: 1. **Emitter (E):** The exit point for current. 2. **Collector (C):** The entry point for current. 3. **Base (B):** The trigger that controls the flow between Collector and Emitter. --- ### ## Key Features & Applications #### ### Features * **High Voltage:** Capable of handling up to 100V-120V, making it ideal for driver circuits. * **High Speed:** A transition frequency ($f_T$) of 120 MHz allows for fast switching and high-frequency signal processing. * **Low Capacitance:** Minimizes signal distortion in video applications. #### ### Common Applications * **Video Output:** Used in CRT monitors and older television sets to drive the electron gun. * **Audio Amplifiers:** Used in the driver stages or pre-amplifier circuits. * **Voltage Regulators:** Employed in power supply circuits that require moderate current and high voltage handling. --- ### ## Complementary Part In push-pull amplifier configurations, the 2SC1567A (NPN) is often paired with its PNP counterpart: * **Complementary Pair:** **2SA794A** ---