SMBJ180CE3/TR13

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TVS - Diodes: SMBJ180CE3/TR13 Application Field and Working Principle

Transient Voltage Suppressor (TVS) diodes are widely used in electronic devices to protect against voltage and surge surges due to lightning, accidental contact and other causes. The SMBJ188CE3/TR13 is a TVS diode designed specifically for use in automotive applications. It provides a dual-role protection function that actively guards the system against transients while also providing a reverse voltage protection function.

The SMBJ180CE3/TR13 is the perfect choice for automotive applications requiring reliable transient protection. With a maximum clamping voltage of 170V after 250µs and 200mA surge protection, it can handle very high voltage and current surges. This diode also boasts a low profile package footprint of 0.4mm, making it ideal for use in confined spaces.

The SMBJ180CE3/TR13 is a transient voltage suppressor diode typically used to protect low voltage applications such as car electronics from high voltage transient surges. It is a dual transistors consist of a Zener diode and a NPN Bipolar Junction Transistor (BJT). It works in the reverse direction, allowing the Zener diode to absorb the cable harmonics of the episode spike and avoid system damage. The NPN BJT acts as a voltage clamping device, and also works in the reverse direction to quickly counteract the overvoltage, which effectively limits the peak voltage to the residual voltage clamp value.

The SMBJ180CE3/TR13 also provides an additional layer of incidental protection by protecting the connected load from overload, reverse polarity, and short circuit voltage. In the event of an overvoltage surge, the diode can handle up to 1.2 kV peak transient voltage (approximately 10kA peak), giving users the confidence they need in high-voltage applications. The diode’s low clamping voltage of 75V also provides excellent protection from indirect lightning strikes and other overvoltage events.

In order to ensure that the diode works correctly in the event of a transient, it is important to consider the device’s solderability during the product selection phase. The SMBJ180CE3/TR13 features a lead-free, high-temperature, solderable back surface mounting package for secure attachment to a printed circuit board. This process allows the diode to be securely connected to a resistor, capacitor or coil, providing direct protection to the system in the event of a transient.

As a result, the SMBJ180CE3/TR13 diode is an excellent choice for automotive applications requiring reliable protection from voltage and current surges. With its ability to handle high surge currents of up to 25A, it is a perfect match for a wide range of applications. It is also an ideal option for applications that require a small package size, as it boasts a slim and lightweight package footprint. Additionally, its low clamping voltage of 75V ensures an additional level of protection for embedded systems. The diode also provides protection from overload, reverse polarity, and short circuits, making it a very versatile solution for automotive applications.

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