1SMC70A TR13

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A Transient Voltage Suppressor (TVS) diode is an important electronic component used in protecting against unexpected voltage spikes. TVS diodes such as 1SMC70A TR13 are used to protect sensitive circuits from power surges and high-voltage spikes. This article will discuss the application field and working principle of 1SMC70A TR13 TVS diode.

1SMC70A TR13 is a 3 pin, surface mount Transient Voltage Suppressor (TVS) diode designed for general purpose applications. Its Breakdown Voltage (BV) is 600V, and its Maximum Peak Pulse Power (PPP) is 900 Watts. It is rated at uni-directional configuration and is built on an axial lead frame. The diode is encased in a black UL flame retardant, thermoplastic case. Additionally, the diode is series ESD sensitive and meets ROHs and UL 94V-0 specifications.

1SMC70A TR13 is often used in general purpose applications such as telecommunication systems, industrial equipment, mobile phone base stations, automotive applications, and other sensitive electronic components that require protection from voltage spikes and over-voltage events. Additionally, due to its fast response time (tP = 10.0 μs @ 10/1000 μs waveforms) and its capability of handling high surge currents, 1SMC70A TR13 is an ideal solution for automobile engine control units, power distribution units, aircraft electrical systems, and protection circuits. In addition to electrical and electronic circuits, the 1SMC70A TR13 is also suitable for roadside signaling, and railway signaling.

1SMC70A TR13 is a Transient Voltage Suppressor (TVS) Diode that works as a voltage regulator during power surges and high voltage spikes by clamping the voltage at a specified maximum value. When a voltage is applied to the diode, the electrons are attracted to the positive terminal. These electrons cross the depletion layer and flow through the P-N junction. When the voltage exceeds the Maximum Avalanche Voltage, the electrons will break down the depletion layer and form an avalanche current that clamps the voltage at the specified value, thus preventing the voltage spikes and power surges.

1SMC70A TR13 is also known as a unidirectional or “crowbar” diode. This is because the TVS diode is designed to conduct current in only one direction and will block voltage in the opposite direction. When the voltage reaches a certain threshold, the diode will generate an avalanche current clamping the voltage and preventing it from exceeding the Maximum Avalanche Voltage. This helps protect sensitive electronic components from power surges, voltage spikes, and other forms of electrical noise.

In conclusion, 1SMC70A TR13 is a versatile Transient Voltage Suppressor (TVS) diode suitable for a variety of applications. It is often used to protect sensitive electronics from power surges, over-voltage events, and high-voltage spikes. The diode works by clamping the voltage at a specified maximum value using an avalanche current, thus preventing the voltage from exceeding the specified Maximum Avalanche Voltage. Additionally, the 1SMC70A TR13 is also known as a unidirectional or “crowbar” diode since it only conducts current in one direction and blocks voltage in the opposite direction.

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