| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | K2411 | Telephone Tone Ringer FORWARD INTERNATIONAL ELECTRONICS LTD. SEMICONDUCTOR TECHNICAL DATA K2411 TELEPHONE TONE RINGER The 2411 is a bipolar integrated circuit designed for telephone tone ringer. Features * Designed for telephone bell replacement * Adjustable 2-tone frequency * Hysteresis circuit prevents false triggering and rotary dial “Chirps” * Adjustable for reduced supply initiation curr |
 Forward Holdings |
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| 1 | K2411 | MOSFET ( Transistor ) - 2SK2411 DATA SHEET MOS FIELD EFFECT TRANSISTOR 2SK2411, 2SK2411-Z SWITCHING N-CHANNEL POWER MOS FET INDUSTRIAL USE DESCRIPTION The 2SK2411 is N-Channel MOS Field Effect Transistor designed for high speed switching applications. 3.0 ±0.3 PACKAGE DIMENSIONS (in millimeter) 10.6 MAX. 10.0 5.9 MIN. 12.7 MIN. 15.5 MAX. 3.6 ±0.2 4.8 MAX. 1.3 ±0.2 FEATURES • L |
 NEC |
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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 |
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| LM317 | This is a popular adjustable voltage regulator. |
 ON Semiconductor |
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6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |
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