Transistor Kit Box

The Transistor Kit Box contains a good mix of NPN and PNP transistors, suitable for a variety of low-power switching and amplification applications.

1. General-Purpose Low-Power Transistors:

• S9012 (PNP) / S9013 (NPN) → Used in low-power amplification and switching circuits.
• S9014 (NPN) / S9015 (PNP) → Low-noise transistors, good for audio applications.
• S9018 (NPN) → High-frequency applications, such as RF circuits.
• S8050 (NPN) / S8550 (PNP) → Can handle slightly higher currents, good for small motor drivers.
• C1815 (NPN) / A1015 (PNP) → Commonly used in amplifiers and signal processing circuits.

2. High-Voltage Switching Transistors:

• 2N5401 (PNP) / 2N5551 (NPN) → Used in power supply circuits, voltage regulators, and amplifiers.

3. Universal General-Purpose Transistors:

• 2N3904 (NPN) / 2N3906 (PNP) → Widely used in switching, amplification, and signal processing.

4. Medium-Voltage Transistors:

• A42 (PNP) / A92 (NPN) → Suitable for power amplifiers and voltage regulation applications.

Applications of This Kit:

✅ Low-power amplifier circuits
✅ Signal processing
✅ Small motor control
✅ RF applications (S9018)
✅ Switching circuits (LEDs, relays, buzzers)
✅ DIY electronics projects