2SC5200 Transistor：Pinout and Applications

The 2SC5200 transistor is an NPN power transistor designed for general-purpose switching and power amplifier applications. It features three terminals (emitter, base, and collector) and three layers (N, P, and N). The P-doped layer is situated between two N-doped layers. This article provides an overview of the 2SC5200 transistor, including its operation and applications.

What is the 2SC5200 Transistor?

The 2SC5200 is an NPN transistor commonly used in AF amplifiers and high-power audio circuits due to its high collector current and high current gain. Manufactured by Toshiba, it is also a replacement for the TTA5200.

This high-power transistor is available in the TO-264 package, which is made of epoxy and plastic materials, suitable for various amplifier designs. The collector to emitter voltage (VCE) is 230V, and the collector current is 30A. These transistors are used in TVs, mobile phones, flip flops, industrial control systems, and more.

Once these transistors operate with high collector current and switching frequency, they heat up very quickly. Therefore, they are always used with a heat sink to protect the circuit from overheating.

In most amplifier circuit designs, the 2SC5200 transistor is used along with its complement, the 2SA1943. Similar to Class B amplifiers, many amplifiers use a push-pull circuit that includes both PNP and NPN transistors. Thus, both transistors are frequently used together to build high-power amplifiers.

Pin Configuration

The pin configuration of the 2SC5200 transistor and its symbol are shown below. This transistor includes three terminals, each of which is discussed below.

• Pin1 (Base): Controls the biasing of the transistor and is used to turn the transistor ON or OFF
• Pin2 (Collector): Current flows in through the collector, typically connected to the load
• Pin3 (Emitter): Current drains out through the emitter, typically connected to ground

Features & Specifications

The features and specifications of the 2SC5200 transistor include:

• High-power NPN transistor
• Designed in a TO-264 package
• Large current capacity
• High fidelity (HiFi) audio frequency amplifier output
• Easy to turn on/off
• Handles the flow of current when in the ON condition
• Operates in both low-frequency and high-frequency ranges, suitable for audio amplifiers
• Low power drop when the transistor is in the ON state
• Low harmonic distortion
• High transition frequency
• DC current gain (hFE) ranges from 55 to 160
• Transition frequency is 30MHz
• Continuous collector current (IC) is 15A
• Emitter to base voltage (VBE) is 5V
• Collector to emitter voltage (VCE) is 230V
• Collector to base voltage (VCB) is 230V
• NPN transistor polarity
• Base current (IB) is 1.5A
• Operating temperature ranges from -55°C to 150°C
• Power dissipation (PD) is 150W

Equivalent 2SC5200 transistors include 2SD1313, 2SC5242, 2SC3320, and FJL4315. Replacements for this transistor are MJL3281A, KTC5242, TTC5200, and MJL13002A. The complementary transistor to the 2SC5200 is the 2SA1943, and there is no SMD version of this transistor.

How to use 2SC5200 Transistor/Circuit Diagram?

An audio amplifier is an electronic circuit designed to amplify weak AC or DC signals to a higher amplitude range. Amplifiers are commonly found in devices such as mono speakers, stereo speakers, and audio amplifiers. Below is an audio amplifier circuit using a 2SC5200 transistor. The transistor in this circuit is a 2SC5200, which is an NPN power transistor.

This audio amplifier circuit can be built with various electronic components, including a 2SC5200 NPN power transistor, a 0.5 Watt 8 Ohms loudspeaker, a 3.5mm DC male or female jack, a 10K potentiometer, a 1K resistor, a 220uF electrolytic capacitor, a 12V DC power supply, battery clips, jumper wires, and a breadboard.

The working of the audio amplifier circuit with the 2SC5200 transistor is as follows: the input provided to this circuit is audio input from a smartphone or personal computer.

A 10K potentiometer controls the input voltage level, and a 220uF capacitor blocks the input signal's DC component, allowing only the AC component. This AC signal acts as a control signal for the base terminal of the transistor.

The amplified output from the collector terminal of the 2SC5200 transistor moves to the negative terminal of a speaker, while the positive terminal connects to a DC power supply via a DC male power jack. To protect the transistor from overheating, a heat sink can be optionally used.

This audio amplifier circuit has various applications. It is essential in music recording, making it crucial in the modern music industry. Additionally, it is used as an acoustic weapon in the military and in HVAC radars.

Where to use 2SC5200 Transistor/Applications

The applications of the 2SC5200 transistor include the following:

• Used in audio frequency amplifiers
• Functions as medium power switches
• AF or RF circuits
• Switching loads with high current up to 15A
• Used in low slew rate devices
• Circuits based on push-pull configurations
• High power audio circuits
• Circuits that operate with high current
• High fidelity audio circuits
• Voltage regulator circuits
• Medium power circuits

These power transistors are mainly used in 200W rated stereo systems, which respond from 5Hz to 100 kHz frequencies with 0.75Vrms sensitivity. These transistors are ideal for audio applications due to their low signal-to-noise ratio and low harmonic distortion. For more information, please refer to the 2SC5200 Transistor Datasheet.

Thus, the 2SC5200 is a high-power NPN transistor suitable for AF amplifiers and high power audio circuits due to its high current gain. When used continuously with heavy loads, its performance may degrade due to heat, so a heat sink is recommended to mitigate this issue. This IC includes a specific three-digit printed lot number with a line below it to indicate whether the product is Pb-free or RoHS compatible. Here is a question for you: what are the disadvantages of the 2SC5200 transistor?

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