SMBJ26A-13

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TVS-Diodes, or transient voltage suppression diodes, are important components of electrical circuits. These components protect the circuit from damaging overvoltage transients by temporarily diverting or clamping the transient voltage to a safe level. The SMBJ26A-13 is one such device used in a variety of applications.

The SMBJ26A-13 is a bi-directional, Thyristor (Silicon Control Rectifier) based TVS diode with a working voltage rating of 13V. It is a low capacitance diode, with an operating current of 400A. The SMBJ26A-13 has a 5KV (5000V) peak pulse power rating, a 0.2pF typical capacitance and a 0.01V typical voltage drop. Furthermore, the maximum high external stress clamping voltage is 16V.

The SMBJ26A-13 is suitable for use in a variety of applications, such as boards protection from electrostatic discharges (ESD), Lightning and Transient Voltage Suppression (TVS). It can also be used as a circuit breaker and to protect expensive printed circuit boards (PCB), especially in high input voltages, scenarios. The past-trough diode in the SMBJ26A-13 helps protect vulnerable components from damaging reverse voltage.

The SMBJ26A-13 works in an almost similar principle of a typical diode. Under normal conditions, the diode behaves like an ordinary diode, while during transient events or voltage spikes the diode ‘trips’ and becomes a low-impedance path for the excess voltage.

The SMBJ26A-13 activates within nanoseconds when the external voltage exceeds its operating voltage level. This action momentarily diverts or clamps the voltage to a safe level (the breakdown voltage of the internal SCR) so as to protect the circuit. The device’s internal SCR works as a voltage clamp, meaning that when the voltage is higher than the breakdown voltage level of the SCR, the current flow is clamped. The device then automatically recovers once the voltage drops to normal levels.

The SMBJ26A-13’s fast response time enables it to provide effective protection for circuits from damaging overvoltage transients. It also has a very low capacitance that helps ensure the system works as designed without any glitches.

In conclusion, the SMBJ26A-13 is an ideal device for providing effective protection for sensitive electronic circuits from ESD and other transient voltages. Its low capacitance, fast response time and efficient voltage-clamping features make it ideal for all types of applications. The device is a reliable and cost-effective means of safeguarding expensive PCBs from catastrophic failure due to voltage anomalies.

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