Introduction
TIP50 NPN Transistor – High-Voltage Power Switching Transistor:
The TIP50 is a high-voltage NPN bipolar junction transistor (BJT) designed for use in power switching and general-purpose amplifier circuits. With a maximum collector-emitter voltage (VCE) of 400V and a collector current of 1A, the TIP50 is engineered to handle demanding high-voltage, low-to-moderate current applications. Its rugged TO-220 package allows for excellent thermal performance and efficient heat dissipation, making it suitable for both consumer electronics and industrial control systems.
Note: DATASHEET DOWNLOAD button is provided end of this article.
One of the standout features of the TIP50 transistor is its low collector-emitter saturation voltage, which results in reduced power loss and improved efficiency in switching applications. It offers a DC current gain (hFE) in the range of 15 to 75, ensuring stable performance across a variety of operating conditions. The TIP50 is commonly used in line-powered devices, relay drivers, motor control circuits, and switch-mode power supplies (SMPS), where high breakdown voltage and reliable switching are critical.
TIP50 NPN Transistor
Thanks to its wide operating temperature range of -65°C to +150°C, the TIP50 is well-suited for harsh environments and demanding applications. It is also popular in CRT monitor circuits, audio amplifiers, and inverter circuits, where both high voltage and good gain characteristics are needed. Its complementary PNP counterpart, the TIP55, makes it ideal for use in push-pull amplifier stages and H-bridge motor drivers.
In summary, the TIP50 NPN power transistor is a versatile and cost-effective choice for engineers, technicians, and electronics hobbyists looking for a reliable high-voltage BJT. Whether you’re designing a high-voltage switching regulator, a DC motor controller, or working with legacy high-voltage equipment, the TIP50 offers performance, durability, and ease of integration into a wide variety of electronic designs.
TIP50 Pinout
Specifications/Characteristics of TIP50 Transistor
| Characterstics | Rating (Max) |
|---|---|
| Max Collector Current(IC) | 1000mA (1A) |
| Max Collector-Emitter Voltage (VCE) | 400V |
| Max Collector-Base Voltage (VCB) | 500V |
| Max Emitter-Base Voltage (VBE) | 5V |
| Max Collector Dissipation (Pc) | 40W |
| Max Transition Frequency (fT) | 10 MHz |
| Minimum & Maximum DC Current Gain (hFE) | 30 to 150 |
| Max Storage, Operating & Junction temperature | -65 to +150 Centigrade |
| Package Type | TO-220 |
| Transistor Type | NPN |
More Circuit Layouts
Key Applications of TIP50 NPN Transistor
The TIP50 NPN transistor is a high-voltage, general-purpose power transistor designed for use in circuits requiring collector-emitter voltages up to 400V. Its robust construction and reliable switching characteristics make it ideal for power supplies, relay drivers, audio amplifiers, and motor control applications. Whether used in line-powered equipment, DC-DC converters, or legacy CRT devices, the TIP50 offers dependable performance in high-voltage and moderate-current electronic systems.
- High-voltage switching – Switches DC loads up to 400V in power control circuits.
- Line-powered equipment – Used in circuits directly connected to AC mains via rectification.
- Power supply regulation – Suitable for linear regulators and high-voltage SMPS designs.
- High-voltage relay drivers – Drives relays in industrial or high-voltage environments.
- Flyback converter circuits – Functions in high-voltage flyback switching topologies.
- Audio amplifier output stages – Used in high-voltage class AB amplifier designs.
- Motor drivers – Drives small to medium DC motors in HV automation systems.
- Voltage inverters and converters – Key part in DC-DC converters requiring high voltage tolerance.
- CRT and legacy TV circuits – Commonly used in high-voltage sections of older CRT-based devices.
- Lab test equipment – Used in high-voltage test benches and prototyping setups.
PNP Complementary Transistor
PNP Complementary of TIP50 Transistor is TIP42/TIP55.
Equivalent Transistors of TIP50 Transistor
TIP100, TIP101, TIP102, TIP105, TIP106, TIP107, TIP110.
And also TIP48, TIP49 are the nearest possible equivalents the only difference is the collector to emitter voltage. So if your voltage requirements are around 300V then you can easily use these equivalents.
Datasheet of TIP50 Transistor
Click the following Button below to download the datasheet of TIP50 Transistor :
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