| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | D1557 | Low-frequency amplification shell rated bipolar transistors R µÍÆ·Å´ó¹Ü¿Ç¶î¨ÄË«¼Ð¾§Ìå D1557 ²úÆ·ÌØÐÔ ¡ô ¡ô ¸ßÄÍѹ ±¥ºÍѹ½µ ¡ô ¡ô ¡ô ¸ß¿ª¹ØËÙ¶È ¸ß¿ÉÐÔ »·±£¨ :VCBO=1700V :VCE(sat)=1V(max.) :tf=0.8¦Ì S(max.) RoHS£©²úÆ· Ö÷ÒªÓÃ; ¡ô ²ÊÉ«µçÓ»úÐä³ö· ÒýÏ߶ËÐòºÅ¼°µÈ§ç· ¸ÅÊö 3DD1557 ÊÇ |
 ETC |
|
| 1 | D1557 | NPN Transistor - 2SD1557 Free Datasheet http:// / |
ETC |
|
[1]
List of most widely used semiconductors
| Part Number | Function | Manufacturers | |
| 1N4007 | The 1N4007 is a rectification diode that is designed for high-voltage applications, typically up to 1000V. It has a maximum current rating of 1A and a forward voltage drop of around 0.7V. |
 Vishay |
|
| LM317 | This is a popular adjustable voltage regulator. |
 ON Semiconductor |
|
6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |
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