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The and B778 (2SB778) are a popular pair of complementary silicon power transistors, often found in the output stages of audio amplifiers and car audio systems. Key Specifications
If the original D998 or B778 transistors are unavailable, the following models can often be used as substitutes based on their power ratings and complementary nature: Buy B778 D998 Customizable Service Available - Alibaba.com
Jangan sampai salah memasang posisi kaki transistor baru karena dapat mengakibatkan kerusakan fatal pada kit driver amplifier. Untungnya, sebagian besar persamaan di atas (termasuk keluarga 2SC5200 dan 2SD1047) menggunakan urutan pin standar yang sama dengan D998 dan B778. Persamaan Transistor D998 B778
Tergantung kualitas substitusinya. 2SC5200 (Toshiba) memiliki gain bandwidth 30MHz, persis sama dengan D998. Bahkan 2SC5242 (ON Semi) memiliki Safe Operating Area (SOA) yang lebih lebar, sehingga lebih tahan korsleting output.
complementary power transistors, commonly used in audio amplification and power switching. 1. Introduction
For optimal performance in push-pull output stages, the D998 and B778 are : Sumber: The and B778 (2SB778) are a popular
Saat mencari persamaan, pastikan komponen pengganti memiliki nilai VCEOcap V sub cap C cap E cap O end-sub ICcap I sub cap C PDcap P sub cap D
Komponen-komponen ini memiliki spesifikasi yang sangat mirip dengan D998 dan B778, sehingga bisa langsung dipasang tanpa perlu mengubah sirkuit:
The and 2SB778 (PNP) are a complementary pair of power transistors widely used in audio power amplifiers , particularly in the output stages of high-fidelity (Hi-Fi) stereo systems, home theater receivers, and professional PA amplifiers. Known for their high current handling and wide Safe Operating Area (SOA), this pair has become a standard in many Japanese-brand amplifiers from the 1980s–2000s (e.g., Pioneer, Kenwood, Technics, and Sansui). Tergantung kualitas substitusinya
These transistors can handle moderate voltage (up to 80V on the Collector-Emitter) and decent current (up to 5A), making them suitable for mid-range power output stages (approx. 20W-40W per channel).
Berikut adalah spesifikasi teknis utama yang wajib Anda ketahui sebelum mencari komponen pengganti: Arus Kolektor Kontinu (Ic): Disipasi Daya Maksimum (Pd): Penguatan Arus DC (hFE): Kemasan (Package): TO-3P / TO-247 Daftar Persamaan Transistor D998 dan B778 Terbaik
Gunakan transistor tester atau power supply 24V, beban lampu 5W/12V. Jika panas berlebihan tanpa sinyal, itu palsu.
(PNP) are a legendary duo of power transistors, officially known as the
Sebelum mencari pengganti, Anda harus memahami karakteristik asli komponen ini. D998 dan B778 adalah sepasang transistor bipolar (BJT) komplementer.
