SMLJ85A-TP

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TVS-Diodes

TVS-Diodes, also known as Transient Voltage Suppressors or surge protection devices, consist of a diode that is designed to absorb transients and protect sensitive electronics from high voltage spikes. The SMLJ85A-TP is a TVS-Diode that is well-suited for transient voltage applications in communication and storage related equipment, as well as industrial control systems that require extended protection for critical circuits.

SMLJ85A-TP Application Field

The SMLJ85A-TP offers superior capacitance for data line protection, with an operating capacitance rating of 4.2mF. It is well-suited for high-frequency ESD and EFT spikes on communication lines, as well as meeting the demands of consumer-level storage & embedded digital systems. This device can also protect equipment such as automated systems, printers, POS terminals, and other sensitive electronics from the dangers of electrostatic discharge. It has an excellent clamping capability, with a reaction time of less than 1.5ns.

SMLJ85A-TP Working Principle

The SMLJ85A-TP works on the principle of absorption of transients, which occurs when a sudden and large surge of voltage is detected. This voltage is then “clamped” to a safe limit, which is much lower than the damaging voltage. The Protection Voltage Rating (PVR) is the peak voltage at which the device can effectively suppress transients. This PVR is typically between 6 and 8V in the case of the SMLJ85A-TP.

Once the voltage reaches the PVR, the avalanche breakdown mechanism of the device triggers, allowing current to pass through. This current then dissipates in the form of heat, preventing the damage to the electronic component. The device also features a high temperature load level of 3.5A and a surge peak current of 10A, allowing it to effectively handle high transient voltages.

Conclusion

The SMLJ85A-TP TVS-Diode is a device that offers superior protection for electronics from high-voltage transients. It is specifically designed to protect data lines from ESD and EFT spikes, as well as dissipate high voltages in a safe manner. The device is capable of handling high transient voltages, allowing it to protect sensitive electronic components from damages.

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