Persamaan Transistor D998 B778 ^new^ -

Finding an exact equivalent ("persamaan") for these transistors requires a deep understanding of their voltage, current, and thermal dissipation ratings, as direct replacements can sometimes be difficult to source due to obsolescence or regional availability issues.

Lepaskan kedua transistor final (driver dan final) dari heatsink. Bersihkan pasta thermal lama.

) sangat bagus, membuat kualitas reproduksi suara audio jauh lebih jernih dan minim distorsi. Persamaan Transistor D998 B778

| Parameter | Symbol | D998 (NPN) | B778 (PNP) | Unit | | :--- | :---: | :---: | :---: | :---: | | Collector-Base Voltage | $V_CBO$ | 150 | -150 | V | | Collector-Emitter Voltage | $V_CEO$ | 80 | -80 | V | | Emitter-Base Voltage | $V_EBO$ | 6 | -6 | V | | Collector Current | $I_C$ | 5 | -5 | A | | Base Current | $I_B$ | 1 | -1 | A | | Collector Power Dissipation | $P_C$ | 30 | 30 | W | | Junction Temperature | $T_j$ | 150 | 150 | °C |

Transistor final menggunakan pendingin ( heatsink ) aluminium yang sama. Pastikan Anda memasang isolator mika atau silikon pad di antara transistor dan heatsink, serta gunakan thermal paste (pasta silikon) secukupnya untuk menghantarkan panas secara optimal. ) sangat bagus, membuat kualitas reproduksi suara audio

With a maximum power dissipation of (at case temp 25°C), a large heatsink is mandatory. For stereo 100W/channel amplifiers:

These transistors are designed for the output stage of audio frequency amplifiers, typically for power ranges of 45W to 50W. Feature B778 (2SB778) 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 Package Type TO-3P / TO-3PML TO-3P / TO-3PML Common Equivalents (Persamaan) With a maximum power dissipation of (at case

user wants a long article about "Persamaan Transistor D998 B778". This is in Indonesian, asking for equivalents or substitutes for the D998 and B778 transistors. These are likely complementary power transistors used in audio amplifiers. I need to provide a comprehensive article covering specifications, equivalent substitutes, manufacturers, and selection guidelines. To get this information, I need to search for the specifications of D998 and B778 transistors and their equivalents. I will perform multiple searches to cover various aspects. search results show some relevant pages. I need to open them to gather detailed information. I will open the datasheet pages for D998 and B778, the forum discussions about equivalents, the pages listing substitutes, and any other relevant results. search results provide specifications, equivalents, and application details. I'll organize the article with an introduction, specifications, equivalents list, selection considerations, application notes, and a conclusion. I'll cite sources appropriately. transistor pair D998 (NPN) and B778 (PNP) is a common complementary set in audio amplifiers, known for its balance of affordability and performance. However, as they are discontinued, finding suitable equivalents is a frequent challenge for those repairing and restoring audio equipment. This guide explores their specifications and the best available substitute options.

The most commonly cited equivalents for these transistors are the and 2SB817 (PNP) .