MJE5850 PNP Transistor 400V 8A TO-220
The MJE5850 is a PNP bipolar junction transistor (BJT) designed for medium- to high-power electronic applications that require reliable current amplification and switching performance. Its robust design makes it suitable for both commercial and industrial circuits where stable operation and efficient power handling are essential.
Manufactured in a through-hole package, it can be easily integrated into PCB designs, repair projects, and prototype circuits. It is widely used in audio amplifiers, power supplies, motor drivers, voltage regulators, and other electronic systems that require dependable transistor performance.
Features:
- PNP bipolar transistor design.
- Suitable for power amplification applications.
- Excellent switching performance.
- High current handling capability.
- Through-hole package for easy installation.
- Reliable operation under demanding conditions.
- Suitable for linear and switching circuits.
- Good thermal characteristics.
- Durable construction.
- Compatible with industrial and consumer electronic applications.
Specifications:
| Specification | Value |
|---|---|
| Transistor Type | PNP Bipolar Junction Transistor (BJT) |
| Part Number | MJE5850 |
| Polarity | PNP |
| Package Type | TO-220 |
| Mounting Type | Through-Hole |
| Collector-Emitter Voltage (VCEO) | 400V |
| Collector-Base Voltage (VCBO) | 400V |
| Emitter-Base Voltage (VEBO) | 5V |
| Continuous Collector Current (IC) | 8A |
| Power Dissipation | 80W |
| Transition Frequency (fT) | 4MHz |
| Operating Junction Temperature | -65°C to +150°C |
Pinout:
| Pin | Description |
|---|---|
| 1 | Base |
| 2 | Collector |
| 3 | Emitter |
Applications:
- Power amplifiers.
- Voltage regulators.
- Switching power supplies.
- Motor control circuits.
- Audio equipment.
- Industrial control systems.
- Battery chargers.
- DC power conversion.
- Electronic repair projects.
- General-purpose switching circuits.
Package Includes:
- 1x MJE5850 PNP Transistor 400V 8A TO-220.

