Persamaan Transistor D998 B778 Install Best May 2026

These transistors are complementary (NPN and PNP) power audio transistors commonly used in high-fidelity audio power amplifiers.

D998 (2SD998)

In the world of audio power amplifiers, the and B778 (2SB778) are a legendary pair of complementary power transistors. Often found in car audio systems and home theater receivers, these NPN and PNP components work together to drive speakers with high fidelity. persamaan transistor d998 b778 install

D998 (NPN)

Monitor the temperature. If the transistors get hot within seconds while idling, turn it off—there is a bias issue or a short. Summary Table Equivalent (Best) Equivalent (Alternative) B778 (PNP) These transistors are complementary (NPN and PNP) power

• Bersihkan bekas pasta thermal lama.
• Pasang isolator mika (atau silikon pad) di antara transistor dan heatsink.
• Oleskan pasta thermal tipis-tipis di kedua sisi mika.
• Pastikan baut tidak menyentuh badan transistor (gunakan ring plastik).

Perbedaan Satu-satunya:

Secara fisik, D998 adalah tipe NPN , sedangkan B778 adalah tipe PNP . Dalam sirkuit, kaki Basis (B) dan Emitor (E) mereka berfungsi simetris, tetapi polaritas tegangan kerjanya terbalik. Bersihkan bekas pasta thermal lama