SMDJ70A-HR

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TVS (transient voltage suppressor) diodes are an essential component for any electronic system, protecting against transient electrical events. SMDJ70A-HR diodes, specifically, are designed as transient voltage suppressor diodes for high voltage surge protection applications. While there are similar products, the SMDJ70A-HR is a unique component, offering superior protection with a wide range of features and benefits.

The SMDJ70A-HR is a series of high-reliability, double electrode transient voltage suppressor diode. It is designed for overvoltage protection and uses a combination of avalanche breakdown and electrostatic breakdown to protect the attached device. The device is a low voltage and low thermal resistance solution specifically designed for protection against extremely high energy surges.

The SMDJ70A-HR has a wide range of features, including reverse current, forward breakdown voltage, ESD (electrostatic discharge) protection, maximum device dissipation, and wide temperature range (-55℃ to 150℃. A unique, low-power-state feature also improves holding performance when DC input voltage is below the starting voltage threshold. This significantly enhances the holding performance in continuous low-power state.

In terms of usage, the SMDJ70A-HR can be used in all kinds of power systems, communication systems, surveillance systems, various electronic security systems, computer system, automotive technology, consumer electronics, input/output devices and hybrid vehicles. Its avalanche breakdown provides outstanding used-mode and static-mode protection against high voltage transients, such as ESD pulses, lightning induced transients, and other spikes.

In general, the operating principles of the SMDJ70A-HR are straightforward. When an overvoltage surge occurs, the device’s diode breakdown occurs, providing short-term overvoltage protection. The voltage exceeds the device’s breakdown voltage and avalanche forward current flow, providing the necessary dissipation to limit the voltage rise. The ESD electrostatic breakdown and positive temperature coefficient performance contribute to the overall protection capability. Additionally, the device is said to work under challenging conditions, such as when power is suddenly input or withdrawn.

In summary, the SMDJ70A-HR is a superior device for reliably providing protection against high voltage transients. Its wide range of features and performance characteristics make it a versatile option for a wide variety of applications, from computer system to automotive technology. Its operating principle is straightforward, making it easy to integrate into existing systems or new designs.

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