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PNP transistor to create a symmetrical Class AB output stage, which helps minimize crossover distortion. High Voltage Switching
The 2SC1124 is designed for high-breakdown voltage applications, often paired with its PNP complement, the , for balanced audio output stages. Maximum Rating Collector-Base Voltage VCBOcap V sub cap C cap B cap O end-sub Collector-Emitter Voltage VCEOcap V sub cap C cap E cap O end-sub Emitter-Base Voltage VEBOcap V sub cap E cap B cap O end-sub Collector Current (DC) ICcap I sub cap C Total Power Dissipation PCcap P sub cap C Junction Temperature Tjcap T sub j Transition Frequency ( fTf sub cap T c1124 transistor datasheet better
The original C1124 has a narrow DC SOA. A better replacement will have a flatter, wider SOA. Look for a transistor that can handle 60V at 1A DC without thermal runaway. PNP transistor to create a symmetrical Class AB
Need the original PDF? Search for "2SC1124 Toshiba datasheet" – ignore the generic "C1124" SEO spam sites. A better replacement will have a flatter, wider SOA
When you are repairing vintage electronics, audio amplifiers, or switching power supplies, you will eventually come across the . This Japanese NPN epitaxial silicon transistor (often marked as 2SC1124 ) was a workhorse of the 1980s and 1990s. However, if you are reading this article, you have likely run into a common problem: The original datasheet is hard to read, the part is obsolete, or you need a better performing component.
: The 100 MHz transition frequency indicates it can handle rapid signal changes, making it efficient for switching power supplies. Thermal Management : In high-power circuits, it requires a heat sink. Proper soldering and mounting techniques are critical to prevent thermal runaway. Common Substitutes and Equivalents