ZTX651

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ZTX651 Application Field and Working Principle

The ZTX651 family of transistors are general-purpose, high voltage, NPN silicon epitaxial-base transistors, specifically designed for use in high voltage switching and amplifier applications. This transistor is classified as a Single Bipolar (BJT) transistor and has a range of features making it a useful device in the automotive, appliance, industrial, and communication markets.

The ZTX 651 transistor is designed for switching and amplifying applications including light bulb dimmers, DC to AC inverters, motor speed controls and loudspeaker protection circuits. The high breakdown voltage of the device make it well suited for use in applications requiring high voltage operation. The ZTX651 is also suitable for use in motor speed controls, relays, fan controls and signal Level interfaces.

Features

• High Breakdown Voltage (200V)
• Possess high frequency switching capability
• Low Inter-Base Resistance
• High Gain Voltage Ratio
• Provide large current output
• Low Power Consumption

Working Principle

The ZTX651 family of transistors is made up of a single NPN type transistor. This type of transistor typically consists of three lead terminals, the base, the emitter and the collector. The base terminal is generally the control element, when a voltage is applied to the base terminal, it will control the current flow from the collector to the emitter. The amount of current that flows from the collector to the emitter is proportional to the amount of base to emitter voltage and the amount of voltage collector to emitter voltage. Generally, in switching applications, the collector to emitter voltage is set to a low level to form an OFF position, and when a higher voltage is applied to the base, the collector to emitter voltage is increased, finishing the switch in an ON or conducting position.

Usage

The ZTX651 is suitable for a wide range of applications. Due to its robust design and high voltage performance, it can be used in many automotive and automotive applications, including lamps dimmers, relay control, motor speed control, AC to DC converters, amplifier circuits, and load switches. Additionally, it can be used in high power converters, network interface devices, and many industrial and consumer applications.

The ZTX651 is also a perfect choice for use in broadcast and communications equipment, providing large current output, high current response times, low power consumption and excellent frequency response characteristics. For this reason, the device is widely used in smart antennas, point-to-point radio links, wireless LANs, and communications systems.

Conclusion

The ZTX651 series of transistors provides a reliable, stable, and cost-effective solution for many applications across the automotive, consumer and industrial markets. Its high breakdown voltage, low interbase resistance and wide range of features make it an ideal choice for applications where large currents and high voltages are required. It is also a great choice for batteries, motor speed control, relays, and many communication devices.

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