SMAJ26CAE3/TR13

Transient voltage suppression diodes, or TVS diodes, are components designed to protect other components or circuit boards from voltage spikes or surges. The SMAJ26CAE3/TR13 is a widely used TVS diode due to its low cost and thanks to its small size and weight, it provides a great level of protection in small board spaces. It maintains low levels of leakage current and rarely has any NVR issues. In this article, we will discuss the application field of the SMAJ26CAE3/TR13 and its working principle.

Application field of the SMAJ26CAE3/TR13

The SMAJ26CAE3/TR13 is primarily designed to protect against overvoltage transients in consumer electronics, industrial process control, and automotive, aerospace, and military equipment applications. Since it is RoHS complient, the SMAJ26CAE3/TR13 is commonly used in circuit boards to protect components from damage from static electricity, lightning, or other voltage transients. This diode can protect up to 250 Watts of average power for applications with a peak current rating of 36 Amps. In order to protect against electrostatic discharges, the SMAJ26CAE3/TR13 is designed to be placed very close to the devices susceptible to damage, making it less bulky than other diodes.

Working Principle of SMAJ26CAE3/TR13

The SMAJ26CAE3/TR13 is a transient protection diode that utilizes a press-fit ceramic package to provide effective ESD protection by dissipating transient energy and providing a short, low-inductance path to ground. The diode works by diverting unwanted energy away from the protected device and grounding it to prevent damage. This is made possible by using a Zener diode which is designed to break down when the diode is exposed to overvoltage transients. When the diode breaks down, it acts like a short circuit and diverts the excess energy into ground. This protects the device from damage due to voltage peaks that exceed its normal operating parameters.

The SMAJ26CAE3/TR13 is designed to handle average power of up to 250 Watts and peak currents of up to 36 Amps. It features a low capacitance of typically 5 pF, which helps reduce signal degradation caused by ESD. The diode is designed to meet industry-standard safety requirements as well. Specifically, the diode is designed to meet the IEC 61000-4-2 and ANSI/ESD S20.20, Level 4 standards for ESD protection. This ensures that the diode will withstand up to 8 kilovolts of ESD before breaking down.

Conclusion

The SMAJ26CAE3/TR13 is a widely used, cost-effective transient voltage suppression diode that provides effective ESD protection and excellent protection against overvoltage transients. Its small size and weight make it ideal for use in smaller circuit board spaces for consumer electronics, industrial process control, and automotive, aerospace, and military equipment applications. Additionally, its low leakage current and NVR compliant design make it a reliable choice for protecting vulnerable components.