A1015 PNP Silicon Transistor
= General Purpose PNP Transistor for Low-Power Applications =
The A1015 is a widely used generalpurpose PNP silicon transistor in a TO92 package. It is suitable for low-power switching and amplification applications, serving as the complementary PNP counterpart to the C1815 NPN transistor.
General Purpose PNP Ideal for lowpower amplification and switching.
Complementary to C1815 Pairs with C1815 NPN for pushpull circuits.
Collector Current: -150mA max.
CollectorEmitter Voltage: 50V max.
Use for audio preamplifiers, general switching, and sensor signal conditioning.
= Technical Specifications =
| Parameter | Value |
|---|
| Polarity | PNP |
| Collector Current (IC) | -150mA max |
| Collector-Emitter Voltage (VCEO) | -50V max |
| Collector-Base Voltage (VCBO) | -60V max |
| Power Dissipation | 400mW |
| DC Current Gain (hFE) | 70 to 700 (varies by grade) |
| Transition Frequency (fT) | 80MHz typical |
| Package | TO92 (throughhole) |
= Pin Configuration (TO-92 Package, Flat Side Facing You) =
| Pin | Function |
|---|
| 1 | Emitter (E) |
| 2 | Collector (C) |
| 3 | Base (B) |
The A1015 follows the ECB pinout configuration in TO-92 package.
For SMD applications, check the specific package pinout as it may vary.
= hFE Classification Grades =
The A1015 is available in different gain ranks for optimal circuit performance:
| Rank | hFE Range |
|---|
| O | 70 - 140 |
| Y | 120 - 240 |
| GR | 200 - 400 |
| BL | 350 - 700 |
Grade suffix indicates the gain rank, e.g., A1015-GR.
Choose rank based on circuit gain requirements.
= Key Features =
+Low Power Operation Suitable for batterypowered and low-current circuits.
+Good Frequency Response - 80MHz transition frequency for audio applications.
+Low Saturation Voltage VCE(sat) typically 0.25V at -100mA.
+Complementary NPN Pair - Pairs with C1815 NPN.
== Applications ==
- Audio preamplifiers and low-power amplifier stages.
- Small-signal switching circuits.
- Sensor signal conditioning.
- Logic level conversion and low-current drivers.
Widely Available A common throughhole transistor for hobbyist projects.
Reliable Performance Proven component for generalpurpose electronics.
√ Compatible with 3.3V and 5V logic systems.
√ TO-92 package fits standard breadboards and PCBs.
= Troubleshooting =
Transistor not switching:
- Verify baseemitter voltage is below 0.7V for PNP turn-on.
- Check base current and resistor values.
- Ensure load current does not exceed 150mA.
Excessive heat:
- Verify collector current is within 150mA limit.
- Ensure power dissipation does not exceed 400mW.
- Check for correct biasing in amplifier circuits.
