The ZTX688 is a high-gain NPN bipolar junction transistor (BJT) manufactured by Zetex Semiconductors (now part of Diodes Incorporated). This transistor is designed for applications requiring high current amplification and low saturation voltage. It is suitable for a wide range of switching and amplification applications, particularly those requiring high efficiency and a compact form factor.

Applications

• Low-side switching: Switching inductive loads, such as relays, solenoids, and motors.
• Amplification: Amplifying audio signals and other low-level signals.
• LED driving: Driving LEDs in lighting and display applications.
• DC-DC converters: Switching elements in DC-DC converters and power management circuits.
• Load switches: Controlling power to various components and subsystems in electronic systems.

Features

• High current gain: Provides high current amplification for efficient switching and amplification.
• Low saturation voltage: Minimizes power losses and improves efficiency in switching applications.
• High collector current: Capable of handling high collector currents.
• Small form factor: Available in compact surface-mount and through-hole packages.
• RoHS compliant: Meets environmental regulations for hazardous substances.

Benefits

• Efficient switching: Low saturation voltage minimizes power losses in switching applications.
• High amplification: High current gain provides efficient signal amplification.
• Design flexibility: Suitable for a wide range of switching and amplification applications.
• Reduced component count: Simplifies circuit design and reduces component count.
• Environmental compliance: Meets environmental regulations for hazardous substances.

Additional Details

The ZTX688 features a high current gain (hFE) of typically 500 or greater, enabling efficient amplification of low-level signals. Its low saturation voltage minimizes power losses in switching applications. The transistor is capable of handling a collector current of up to 3A. It is available in various package styles, including through-hole and surface mount. This BJT is an excellent choice for applications requiring high current gain, low saturation voltage, and robust performance. It is often used in power management circuits and motor control applications. This transistor switches efficiently and amplifies signals effectively. It also is often used in audio amplifiers.