C1124 Transistor Datasheet Better Online

Search for "2SC1124 datasheet PDF" on:

Warning: Many sources list incorrect or incomplete pinouts. Always verify with the original manufacturer (e.g., NEC, Hitachi, Sanyo – original 2SC1124 makers).

If you are trying to match specs, here are the critical parameters: c1124 transistor datasheet better

| Parameter | Symbol | Rating | Unit | | :--- | :--- | :--- | :--- | | Collector-Base Voltage | $V_CBO$ | 50 | V | | Collector-Emitter Voltage | $V_CEO$ | 40 | V | | Emitter-Base Voltage | $V_EBO$ | 5 | V | | Collector Current | $I_C$ | 1.0 | A | | Power Dissipation | $P_C$ | 0.8 | W | | DC Current Gain | $h_FE$ | 40 - 240 | | | Transition Frequency | $f_T$ | 150 | MHz |

The 2SC1124 is an NPN Silicon RF Transistor. Search for "2SC1124 datasheet PDF" on:

Even if a datasheet says "VCEO = 20V", derate it to ~15V for reliability in RF circuits. The power dissipation (PC) assumes perfect heatsinking; in open air, use only ~60% of the rated value.

You cannot always drop a replacement in without thinking. Here is how to make the "better" transistor work physically and electrically. Warning : Many sources list incorrect or incomplete pinouts

If you want to improve the circuit (e.g., lower noise, better thermal stability):