The Central semiconductor 2SC1815 Series are silicon NPN transistors, manufactured by the epitaxial planar process, designed for general purpose amplifier applications.

Features:

• General Purpose NPN Transistor
• DC Current Gain (hFE) 70 to 700
• Continuous Collector current (IC) is 0.15A
• Collector-Emitter voltage (VCE) is 50V
• Collector-Base voltage (VCB) is 60V
• Transition Frequency: 80MHz
• Available in To-92 Package

Applications:

• General purpose switching
• Class B amplifiers
• Pre-amplifier circuits
• Push-Pull configuration circuits

Datasheet: https://components101.com/asset/sites/default/files/component_datasheet/2SC1815-NPN-Transistor-Datasheet.pdf