SMLJ70CAE3/TR13

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Transient voltage suppressor (TVS) diodes are semiconductor devices designed specifically to protect sensitive electronics from damage due to sudden, unexpected voltage transients. The SMLJ70CAE3/TR13 is a general purpose TVS diode developed by Seiko Instruments to protect against electrostatic discharges (ESD), power surge events, and other transient voltage fault conditions.

Application Field

The SMLJ70CAE3/TR13 is a unidirectional TVS diode featuring a non-polar N-Channel MOSFET structure, making it ideal for general ESD and power surge protection in many electronic circuits, including communication systems, consumer electronics, computer peripherals, and automotive applications. The SMLJ70CAE3/TR13 can clamp even sustained transients up to 70V, so it can be used to protect against voltage disturbances from a wide range of sources. The SMLJ70CAE3/TR13 provides excellent ESD protection and low leakage current, making it an excellent choice for a variety of electronic applications.

Working Principle

TVS Diodes, such as the SMLJ70CAE3/TR13, work by “clamping” the voltage to a safe limit. The SMLJ70CAE3/TR13 uses a zener-diode-like mechanism to divert excessive voltage away from the protected components. When excessive voltage is sensed, the diode instantly begins to conduct, allowing the protected components to remain within their established safe limits. The SMLJ70CAE3/TR13 is capable of withstanding spikes of up 70V, meaning it can effectively clamp transient voltage to a safe level.

In addition, the SMLJ70CAE3/TR13’s low leakage current ensures that the circuit isn’t affected by any low level of current during normal operation. Low leakage current is essential for stable operation in many circuits, since it allows the diode to be “open” when the transient voltage is not present. The SMLJ70CAE3/TR13 also has a fast response time, ensuring that the circuit is fully protected quickly.

Conclusion

The SMLJ70CAE3/TR13 is an excellent choice for general ESD and power surge protection in both commercial and automotive applications. Its non-polar N-channel MOSFET structure and low leakage current make it ideal for use in many circuits, while its 70V clamping voltage and fast response time ensure that circuits are well-protected. TVS diodes provide a cost-effective solution for protecting sensitive electronic components, making them invaluable for a wide range of applications.

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