C1124 Transistor Datasheet Better [updated] Jun 2026

The TO-126 package is often confused with TO-220 or other Japanese packages.

Always double-check with a digital multimeter (diode test mode) before soldering, as some regional manufacturers occasionally mirror the pinout layout. Key Applications

Forget the 40-year-old C1124. Here are three modern transistors with that directly replace the C1124 in 99% of circuits.

You might need a better alternative to the C1124 if your project demands: c1124 transistor datasheet better

Operating with a transition frequency between 120 MHz and 140 MHz, the transistor maintains a linear gain profile well into the radio frequency spectrum. This reduces phase shift and harmonic distortion inside the audio loop. Robust Power Packaging

power limit to prevent thermal runaway or failure at the maximum junction temperature.

The modern Fairchild/Onsemi equivalent to the 2SC2690. It boasts highly linear DC current gain ( hFEh sub cap F cap E end-sub The TO-126 package is often confused with TO-220

Buy a used C1124 from a random seller. It fails again in 2 weeks.

While the C1124 transistor is a reliable choice, it may not be the best option for every application. Some limitations include:

While these are smaller packages (TO-92), they are often mentioned as general-purpose substitutes for smaller NPN transistors, although they are generally not suitable for power output stages compared to the TO-220 2SC1124. Here are three modern transistors with that directly

While it's surprisingly difficult to find the original, official Sony datasheet today, reliable aggregate sources provide the core specifications that define the component's capabilities. The table below offers a detailed breakdown of the 2SC1124's absolute maximum ratings and electrical characteristics:

If you are working on a specific repair project, I can help find datasheets or modern, equivalent substitutes for the 2SC1124. Simply share: The specific amplifier or device model Whether you need better power handling or lower noise The PNP counterpart (e.g., 2SA706) Share public link