SMBJ130ATR Circuit Protection

The SMBJ130ATR, referred to as a Transient Voltage Suppressor (TVS) Diode, is a specialized form of clamping diode that is designed to protect relatively low-voltage electronic systems from the damaging effects of overvoltage transients. Its superior characteristics and high-reliability ratings make it suitable for use in many different types of applications, from consumer electronics to industrial and medical devices.

The SMBJ130ATR is a two-pin device that is commonly available in either the SOD-123 or SOT-23 package. The two-pin device is electrically identical in all aspects; however, the SOD-123 package is more readily available on the market, making it the preferred package type. Its physical size makes it suitable for use in many applications with compact size requirements, while its low thermal resistance makes it suitable for operation in physically-constrained environments.

It has an 5.0V reverse standoff voltage, which is the rated reverse voltage threshold. It also has a 130W peak pulse power dissipation rating, which is the maximum rate of energy that it can absorb during an overvoltage transient. This rating ensures that the device can withstand overvoltage transients of up to 130W peak power without damage. The device is also rated for an 8.0 Amperes (Ip) surge peak current, the maximum peak current that can be clamped by the device.

The SMBJ130ATR can be used in a wide range of applications, including communications and networking equipment, consumer electronics, computer systems, medical equipment, industrial controls, and automotive systems. Its reverse standoff voltage of 5.0V makes it suitable for use in many low-voltage systems, while its 130W peak pulse power dissipation rating and 8.0 Amperes (Ip) surge peak current rating make it suitable for use in high-reliability, high-power applications. Moreover, its compact size and low thermal resistance make it suitable for use in physically-constrained environments.

In terms of working principles, the device will conduct in the forward direction when the applied voltage exceeds the specified reverse standoff voltage of 5.0V. The voltage drop across the device in the forward direction is very small, usually less than 1.5V. The device will then begin to clamp any resulting overvoltage, dissipating the energy as heat through its low forward voltage drop.

Once the overvoltage transient has been clamped, the SMBJ130ATR will automatically switch back to its non-conducting state, protecting the electronic system from any further potentially damaging overvoltage transients. The device is designed to be highly reliable, and its high peak power dissipation rating ensures that it can withstand multiple overvoltage transients without damage.

In summary, the SMBJ130ATR is a two-pin device that is commonly available in either the SOD-123 or SOT-23 package. It has an 5.0V reverse standoff voltage and a 130W peak pulse power dissipation rating, making it suitable for use in many applications with compact size requirements. It also has an 8.0 Amperes (Ip) surge peak current rating, making it suitable for use in high-reliability, high-power applications. It is capable of automatically switching back to its non-conducting state after clamping any resulting overvoltage, protecting the electronic system from any further potentially damaging overvoltage transients.