SA70

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Transient Voltage Suppression (TVS) diodes act as protective components that protects against transient voltage threats. They can be grouped into various categories, which includes the SA70 series. This article will discuss the applications and working principles of SA70 series TVS diodes.

BACKGROUND

The SA70 series of TVS diodes is designed to protect high-speed communication interfaces from electrostatic discharge (ESD) and other transients. These diodes are bidirectional, making them suitable for both AC (alternating current) and DC (direct current) voltage applications. SA70 series TVS diodes are also capable of sustaining repetitive peak pulse power rating up to 1.5KW.

FEATURES

• Uni- or Bi-directional ESD and Transient Surge/ Spike Protection.
• Low Capacitance.
• Low Clamping Voltage.
• High Pulse Power Rating.
• Meets IEC61000-4-2 8kV Air, 4kV Contact Level.

APPLICATIONS

The SA70 series TVS diodes are suitable for applications such as Digital and Analog Integrated Circuits (ICs), High-Speed Ethernet, Mobile Phones, LCD/Plasma Monitors, and Notebooks. Additionally, due to its low capacitance, these TVS diodes are also suitable for protecting data lines, such as USB 2.0, HDMI, 1394 FireWire, and Fibre Optics.

WORKING PRINCIPLE

The SA70 series TVS diodes are typically triggered by the presence of a detectable voltage that exceeds the breakdown voltage (VBR) of the device. Once triggered, the current will increase exponentially, until it reaches a maximum peak current limit. As the current continues to rise, the presence of the internal dampening structure dissipates the excess energy from the incoming transient suddently and safely, thus protecting the selected load.

The SA70 series TVS diodes are designed with a low clamping voltage, which keeps the breakdown voltage within the rated level, even when the transient pulse is in high repetition rate. This helps to ensure that the device will remain functional in the event of multiple pulses. Additionally, the internal dampening element ensures that the system continues to remain stable, even after the external environment contains hostile ESD conditions.

CONCLUSION

The SA70 series of TVS diodes provides high-speed communication systems with a reliable solution that is able to protect against damaging electrostatic and transient surge events. These diodes feature low capacitance and have a high pulse power rating, which means that they are suitable for both AC and DC voltage applications. Furthermore, their internal dampening structure helps to dissipate excess energy and maintain system stability. This makes the SA70 series of TVS diodes an ideal choice for protecting your high-speed communication interfaces.

The specific data is subject to PDF, and the above content is for reference