ATV50C140JB-HF Circuit Protection

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TVS - Diodes protect sensitive electronic components from voltage transients. One such example is the ATV50C140JB-HF series from Littelfuse which is designed to protect against current and voltage transients. It is composed of two back-to-back steering diodes with a common anode terminal and discrete PNP transistors providing fast, low voltage clamping to protect against surges.

In protection applications, the TVS - Diode generally acts as a single (fast) breakdown element. This element becomes immediately conductive when the applied voltage across it exceeds the specified breakdown voltage, quickly clamping the input/output voltage and allowing it to reach a low or safe level. The low breakdown voltage becomes the clamping voltage, limiting the peak voltage and current through the device.

The ATV50C140JB-HF series is particularly suitable in many automotive applications due to its AEC-Q101 Qualified status. Due to its surface mount package, it is ideal for use on compact automotive circuit boards. The design is highly reliable, with an Ipp of 70A transient capacity which sufficiently meets the surge current protection in automotive applications.

In addition, the ATV50C140JB-HF series is designed with low leakage current for minimal power consumption, and features high-current handling capabilities. Since it offers a multi-functional series of protection, it is suitable for a range of applications, such as protecting microcontrollers, sensors, and other ICs in automotive and other industrial applications such as LED drivers.

This device is designed specifically with a low reflective impedance so that it can be placed anywhere in the circuit to provide surge protection. The clamping voltage is designed to have enough of a “knee point” to protect against most transient voltage events, so the device is able to provide good power surge protection in a wide range of applications.

The ATV50C140JB-HF series requires minimal external components for operation. Its operating temperature can range from -55°C to 125°C and it is RoHS compliant. With its robust construction and protection features, the ATV50C140JB-HF is a great choice for voltage transient protection in many automotive applications.

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