2SC3198 NPN Bipolar Transistors BJT TO-92

The 2SC3198 is an NPN silicon small-signal transistor offered in compact TO-92 or SOT-23 packages. It’s designed for low-noise operation and is manufactured as a complementary pair to the 2SA1266, making it suitable where matched NPN/PNP stages are needed. The device emphasizes stable performance across typical ambient ranges and is packaged for easy PCB mounting.

electrically, the 2SC3198 supports collector-emitter voltages up to 50 V and moderate collector currents, delivering consistent DC current gain across low to moderate bias conditions. It exhibits low output capacitance and a moderate transition frequency, which helps maintain gain and response in audio and general-purpose signal circuits while keeping intrinsic noise low.

In practice the 2SC3198 is a compact, low-noise NPN transistor intended for signal amplification and switching in space-constrained designs. Its TO-92/SOT-23 options make it straightforward to use both in through-hole prototypes and compact surface-mount PCBs.

Features:

• High DC current gain: h_FE = 70–700 at I_C = 2 mA
• Excellent h_FE linearity
• Excellent safe operating area
• Low noise figure for cleaner amplification

Specifications

Pinout:

Applications:

• Low‑frequency amplifier stages.
• Low‑noise amplifier circuits.
• General‑purpose signal amplification.

Package Contents:

• 1x 2SC3198 NPN Bipolar Transistors BJT TO-92

Datasheet