SMDA05.TBT

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TVS (Transient Voltage Suppressor) diodes offer protection against electrical overstress conditions caused by static discharges, ESD, and electrical transients, such as lightning. ABC Electronics’ SMDA05.TBT is one such diode that provides protection for sensitive electronic systems.

SMDA05.TBT is a low capacitance unidirectional ESD TVS diode. It is designed to protect sensitive components against ESD, lightning and other overvoltage transient events. With low dynamic capacitance (C_d) of 0.2 pF max, the diode is suitable for the protection of high-speed data lines. The combination of low capacitance and low leakage current make the diode ideal for many data transmission line systems, where avoidance of current distortion is important. The diode is also designed to meet the requirements of IEC 61000-4-2 (ESD) Level 4, Level 3, Air 8kV, Contact 8kV.

SMDA05.TBT is a bi-directional TVS diode that breaks down at 5V and provides protection in both directions. It has a high surge current capability of 15A, for a minimum of eight 20μs pulses (IEC 61000-4-5). The maximum clamping voltage is 9.5V. This low clamp voltage is important in systems where malfunction due to stand-off voltage is possible. The diode is also UL recognized.

SMDA05.TBT is designed with a small, 0402 footprint. The diode provides peak power dissipation up to 15W and can sustain power dissipation of 5W at a temperature of 25℃. The maximum operating temperature of the diode is 150℃, enabling it to be used in applications for which long-term reliability is essential. The diode also has a wide operating temperature range of -55 to +150℃.

SMDA05.TBT is manufactured using a Ni/Sn plating material that provides excellent processing and temperature cycle performance, as well as superior corrosion and solderability characteristics. The Pb-free adhesive finish used helps ensure solid mounting to the board within reflow soldering temperatures.

The working principle of SMDA05.TBT is simple. When exposed to voltage pulses, whether overvoltage or ESD, the diode works to limit the peak current by clamping to an approximately 2.5V protected voltage. This limit or clamp voltage creates an approximately 9.5V effective wall against overvoltage pulses and ESD transients. This helps eliminate any over-voltage damage to the protected components or device.

In conclusion, ABC Electronics’ SMDA05.TBT is a bi-directional low capacitance TVS diode that is designed for protecting sensitive electronic systems from overvoltage transients and ESD. The diode has a small form factor and a high current rating, making it ideal for applications where long-term reliability and small dimensions are essential. The diode is designed to meet the requirements of IEC 61000-4-2 (ESD) Level 4, Level 3, Air 8kV, Contact 8kV. With its low dynamic capacitance, low leakage current, excellent temperature characteristics, and corrosion resistance, the diode is suitable for protecting high-speed data lines. Furthermore, the diode breaks down at 5V and provides peak power dissipation up to 15W to ensure reliable operation in adverse conditions.

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