5KP26AHE3/54

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TVS, or Transient Voltage Suppression diode, is an electronic voltage-dependent device designed to protect sensitive electronic systems from voltage transients produced by events such as lightning, electrostatic discharge (ESD), and induced electrical transients in power and logic circuits. The devices are available in packages from very small surface mount (SMT) components to board level protection products. The 5KP26AHE3/54 is a TVS diode that performs bidirectional ESD protection for low-voltage signal lines.

Application Field

The 5KP26AHE3/54 is a unidirectional transient voltage suppression (TVS) diode. It provides device and system level protection against lightning-induced transient over-voltages and electrostatic discharge (ESD). The diode is especially suitable for consumer electronics, medical equipment, semiconductor test equipment, communication equipment, automotive electronics, and industrial applications.

The 5KP26AHE3/54 is widely used in the protection of communication ports, signal lines of automotive infotainment systems, and audio signals of medical devices. The integrated protection structures of 5KP26AHAE3/54 enable over-voltage protection for high-speed data lines such as HDMI, USB, Ethernet, and coaxial lines.

Working Principle

The 5KP26AHE3/54 uses the transistor-transistor logic (TTL) and diode bridge over-voltage circuit principle to achieve the over-voltage protection of the circuit. When the voltage of the working line exceeds the normal threshold, the transistor of the trans-gate over-voltage protection circuit will turn on quickly to clamp the input signal. This will absorb the transient voltage and protect the electronic devices behind it.

At the normal operating voltage, the 5KP26AHE3/54 transistor over-voltage protection circuit behaves like a regular diode. This is known as the forward-biased state, when both the input and output end voltages are low, the forward voltage of the transistor over-voltage protection circuit is close to a value close to zero, and it will not affect the normal signal circuit.

The 5KP26AHE3/54 has a high protection voltage, excellent reverse breakdown and low forward voltage, which reduces residual voltage overshoot and system power consumption, and excellent transient response time, circuit edge and signal integrity.

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