The A1015 is a popular PNP BJT Transistor, it is commonly used in low-power audio amplification and switching circuits. It comes in a compact TO-92 package, making it ideal for small electronic projects and general purpose applications. So in this article sharing A1015 transistor pinout, Characteristics and equivalent transistor information’s for replacement.
A1015 Transistor Overview
- Type: PNP BJT Transistor
- Packing: TO-92
- Maximum Collector – Emitter Voltage: -50V
- DC current gain (hfe): 200 to 400
- Collector current: 150mA
A1015 Transistor Pinout
To correctly identify the pins of the A1015 transistor (or most TO-92 transistors), hold it with the flat side facing you and the pins pointing downward, when viewed this way, the pins are counted from left to right as Emitter (E), Collector (C), and Base (B).
Always remember about the flat side toward you, legs down → E-C-B left to right. Holding it in any other orientation may lead to incorrect pin identification and can damage your circuit or the transistor.
Pinout configuration
| Pin Number | Pin Name |
|---|---|
| 1 | Emitter (E) |
| 2 | Collector (C) |
| 3 | Base (B) |
Equivalent Transistor for Replacement
A1015 PNP transistor equivalents include 2N3906, S8550 (SS8550), BC558, BC559, BC560, 2SA733, A733, 2N2907, and 2SA1015, which can be used in most similar low power audio amplification and switching applications depending on matching voltage, current, and gain requirements.
The 2N3906 is very common and easy to available. So i prefer you to replace the A1015 transistor with 2N3906, a comparison table is given below.
A1015 vs 2N3906 Comparison
| Feature | A1015 | 2N3906 |
|---|---|---|
| Type | PNP | PNP |
| IC Max | −150mA | −200mA |
| VCEO | −50V | −40V |
| Gain (hFE) | Higher | Moderate |
Applications
- Audio Amplifier Stages
- Low noise audio preamplifier
- Microphone amplifier
- Tone control circuits
- PNP Switching Circuits
- Temperature, light and other analog sensor interfaces.
