The and 2SB778 (B778) are classic, complementary silicon NPN and PNP power transistors. They are widely used in the output stages of high-fidelity audio amplifiers, public address (PA) systems, and robust DC power supplies. Finding exact replacements and installing them properly is critical to restoring your equipment to factory performance. Understanding the D998 and B778 Transistor Pair

Persamaan Transistor D998 B778 dan Panduan Installasi untuk Amplifier

Both transistors are housed in a or TO-3PF package, known for excellent heat dissipation during prolonged use. 2SD998 (NPN) 2SB778 (PNP) Polarity Collector-Emitter Voltage ( VCEOcap V sub cap C cap E cap O end-sub ) Collector Current ( ICcap I sub cap C ) Power Dissipation ( PCcap P sub cap C ) Current Gain ( hFEh sub cap F cap E end-sub ) 55 – 160 55 – 160 Persamaan (Equivalents & Substitutes)