SMLJ58E3/TR13

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TVS, or Transient Voltage Suppressors, are components designed to protect circuits from voltage spikes and other forms of transient overvoltage conditions. They are usually used in situations where electrical power is abruptly turned on or off, or when current limitation needs to be implemented quickly. TVS diodes, also known as Transient Voltage Suppression Diodes, are specialized diodes used to protect circuits from transient voltage surges (pulses) that may damage or destroy normal semiconductor components. The rugged SMLJ58E3/TR13 TVS diode is specifically designed to protect logic and digital circuits from voltages that exceed the rated supply and signal levels.

The SMLJ58E3/TR13 is a unidirectional, single-pole, single-throw (SPST) TVS diode designed to handle both ESD (electrostatic discharge) and EFT (electrical fast transient) overvoltage conditions. The SMLJ58E3/TR13 can absorb repetitive surge currents up to 500A (8/30 μs waveform) as well as handle up to 500V peak pulse voltage, making it ideal for applications such as automotive, computers, and digital camera protection.

The SMLJ58E3/TR13 works by limiting the pulse amplitude to a safe level, allowing the diode to withstand a large amount of energy without being damaged. The diode is a fast-acting device and is able to protect the circuit for a fraction of a second. The SMLJ58E3/TR13 is designed to clamp tight almost immediately when the voltage exceeds its reverse breakdown voltage point mountain, providing a low impedance path to divert damaging transient voltage pulses away from the attached circuit.

The SMLJ58E3/TR13 operates in four main modes that provide robust protection in various situations: (1) Suppression – reacting to and clamping a fast rise time voltage transient, (2) Absorption – absorbing a repetitive spike pulse, (3) Discharging – discharging the circuit of stored energy, and (4) Recharging – recharging the circuit by refreshing the stored energy. The device is designed to effectively deteriorate transients induced from ESD, EFT, and other sources of electrical overstress within a single cycle.

The characteristics of the device make it ideal for protecting sensitive circuits from various types of transient overvoltage conditions. It can also be used to protect circuits from operating at higher than accepted voltage levels. This makes the SMLJ58E3/TR13 an ideal TVS diode for the protection and control of delicate IC’s, circuit boards, and other digital components which may be vulnerable to electrical overstress.

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