TIP35 NPN Transistor Pinout Datasheet

Introduction:

The TIP35 is a high-power NPN bipolar junction transistor (BJT). This transistor is a cornerstone component in power electronics, valued for its ability to handle substantial current and power levels. It’s widely used in applications that demand robust performance, such as high-power audio amplifiers, motor control circuits, and voltage regulation. The TIP35‘s design allows it to efficiently manage the large currents needed to drive heavy loads, making it a reliable and essential component for engineers and hobbyists working on projects that go beyond low-power signal processing.

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A key feature of the TIP35 is its high continuous collector current (IC​) rating of up to 25A, with a peak current capability of 50A. This impressive rating, combined with a power dissipation of up to 125W (with a proper heatsink), enables it to perform effectively in demanding environments. The transistor is typically housed in a TO-247 or TO-3P package, which facilitates efficient heat dissipation. When used in conjunction with its complementary PNP pair, the TIP36, the TIP35 becomes a critical part of push-pull amplifier stages, providing a symmetrical and powerful output. Its characteristics, including a good DC current gain (hFE​) and fast switching speeds, make it a top choice for a wide array of power-related switching and amplification applications.

TIP35 NPN Transistor

TIP35 Pinout

TIP35 NPN Transistor Key Features

The TIP35 is a powerful NPN bipolar junction transistor (BJT) designed for high-power applications. As a member of the TIP series, it is a robust and reliable component used extensively in power electronics.

High Current Capability: The TIP35 can handle a continuous collector current (IC​) of up to 25A, and a peak collector current of 50A. This makes it an ideal choice for high-power loads that require significant current, such as motor control, audio amplifiers, and power supply regulation.

High Voltage Rating: It has a collector-emitter voltage (VCEO​) rating of up to 60V, which allows it to be used in circuits with higher voltage requirements.

High Power Dissipation: The transistor can dissipate a substantial amount of power, up to 125W, with a proper heatsink. It is housed in the industry-standard TO-247 or TO-3P package, which is designed to handle this high power dissipation efficiently.

DC Current Gain (hFE​): The TIP35 offers a DC current gain (beta) of 10 to 50. This provides good current amplification, allowing a relatively small base current to control a very large collector current.

Complementary Pair: The TIP35 is part of a complementary pair with the TIP36 PNP transistor. This pairing is crucial for designing push-pull and symmetrical power amplifier stages.

Fast Switching Speed: It is designed for relatively fast switching applications, making it suitable for use in switching regulators and pulse-width modulation (PWM) circuits.

Linearity: The transistor maintains good linearity over its operating range, which is essential for low-distortion amplification in audio circuits.

Versatile Applications: Its high-power and high-current characteristics make it a cornerstone component for applications like high-power audio amplifiers, voltage regulators, and motor control circuits.

TIP35 Transistor Specifications/Characteristics

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Key Applications of TIP35 NPN Transistor

The TIP35 NPN transistor is a high-power BJT that finds its application in circuits that require significant current and power handling capabilities. Its robust design and high ratings make it suitable for a variety of demanding electronic applications

• Audio Power Amplifiers: The TIP35 is a fundamental component in high-power audio amplifier circuits. When used in a complementary push-pull configuration with the TIP36 PNP transistor, it can drive large speaker loads and deliver high-fidelity audio output. Its good linearity and high current gain are essential for minimizing distortion.
• DC Motor Control: Due to its high collector current rating (up to 25A), the TIP35 is an excellent choice for controlling the speed and direction of DC motors. It can be used in H-bridge circuits or as a simple switching element to handle the large currents required by motors in robotics, industrial automation, and automotive systems.
• Voltage Regulation: The transistor can be used as the series pass element in high-current linear voltage regulators. It handles the power dissipation required to maintain a stable output voltage under varying load conditions, making it useful in power supplies for both analog and digital circuits.
• Power Switching Circuits: The TIP35’s high power dissipation and fast switching speed make it suitable for use in various power switching applications. This includes switching large inductive loads like relays and solenoids, as well as being a key component in switch-mode power supplies (SMPS).
• General-Purpose Power Amplification: Beyond audio applications, the TIP35 can be used in a wide range of general-purpose power amplification circuits. It can amplify signals to drive powerful loads in industrial equipment, test instruments, and other high-current applications.
• Lighting Control Systems: The transistor is a reliable choice for controlling high-power lighting systems, such as halogen lamps or large LED arrays, where high current handling is necessary. It can be used in dimming circuits or for on/off control of lighting.
• Power Darlington Pairs: While the TIP35 itself is a single transistor, it can be used in conjunction with other components to form a Darlington pair, which significantly increases the current gain, making it capable of being driven by very small control currents.

PNP Complimentary Transistor

PNP Complementary of TIP35 Transistor is TIP36.

Equivalent Transistors of TIP35

TIP35B, 2SD716, 2SD84, BD249, BD249A, BD249B, BD249C, BD545, BD545A, BD545B, BD545C, BD745, BD745A, BD745B, BD745C. (The pinout for certain transistors can vary from that of the TIP35).

Datasheet of TIP35 NPN Transistor

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