Ini adalah transistor yang memiliki pinout (kaki 1=Base, 2=Collector, 3=Emitter) dan karakteristik yang sangat mirip.
Sebelum mencari komponen pengganti, Anda harus memahami lembar data ( datasheet ) asli dari pasang komponen ini. Baik D998 maupun B778 umumnya diproduksi dalam kemasan atau TO-3PF yang dirancang untuk pembuangan panas yang efisien.
In the realm of power electronics, complementary transistor pairs are essential for efficient power amplification. The and 2SB778 are silicon epitaxial planar transistors designed for high-power applications. They are widely used in audio frequency (AF) output stages and general-purpose switching. Persamaan Transistor D998 B778
With a maximum power dissipation of (at case temp 25°C), a large heatsink is mandatory. For stereo 100W/channel amplifiers:
The represent a mature, robust, and sonically competent complementary power transistor pair. While no longer in active production, their legacy lives on in countless vintage amplifiers. For restoration projects or new designs, they can be directly substituted by the Sanken 2SA1295/2SC3264 or Toshiba 2SA1943/2SC5200 pairs. Ini adalah transistor yang memiliki pinout (kaki 1=Base,
Sanken (biasanya kemasan MT-200), sangat kokoh untuk beban rendah. 3. Panduan Penggantian dan Tips
: Kode penamaan lengkap standar Jepang (JIS) untuk komponen yang sama. 2. Persamaan Upgrade (Spesifikasi Lebih Tinggi) In the realm of power electronics, complementary transistor
Transistor 2SD998 (D998) and 2SB778 (B778) are complementary power transistors frequently used in the output stages of audio amplifiers. They are designed for high-power applications, typically in the 45–50W range. Core Specifications These transistors are almost always used as a matched pair: High-power silicon transistor. 2SB778 (PNP): Complementary partner to the D998. Voltage ( VCEOcap V sub cap C cap E cap O end-sub ): 120V. Current ( ICcap I sub cap C ): 10A. Power Dissipation ( PCcap P sub cap C ): 80W to 100W, depending on the manufacturer.