SMLJ210CE3/TR13

Current - Peak Pulse (10/1000µs):	--
Base Part Number:	SMLJ210
Supplier Device Package:	DO-214AB
Package / Case:	DO-214AB, SMC
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	300W
Series:	--
Voltage - Clamping (Max) @ Ipp:	--
Voltage - Breakdown (Min):	--
Voltage - Reverse Standoff (Typ):	210V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes

Transient Voltage Suppressors (TVS) are special breakdown threshold components that protect circuits from high-energy transients created either by electrostatic discharge (ESD) or electrical fast transients (EFT) events. TVS diodes are capable of operating at high speeds and providing a wide range of current/voltage capabilities. The SMLJ210CE3/TR13 is a unidirectional, hyperabrupt two-terminal device designed specifically for ESD suppression in high-frequency systems. It is a transient voltage suppressor (TVS) suitable for providing circuit-level ESD protection in applications such as USB ports, high frequency ICs, wireless LAN, and HDMI ports, as well as for protection of general electronic circuits from transients generated from in-vehicle electronics.

Features

This diode offers a variety of features, including an ultra-low-capacitance rating of 1.2 pF, an ultra-fast response time of 10 ns typical, and an operating voltage of 13.5 V. Additionally, the diode features a typical clamping voltage of 16.5 V, and a disintegration energy of 10.4 mJ. The maximum surge current rating is exceeded at a junction temperature of 125°C, making it suitable for high temperature applications.

Applications

The SMLJ210CE3/TR13 can be used for applications such as USB ports, high frequency ICs, wireless LANs, and HDMI ports. It is also highly suitable for applications in automotive electronics, as it offers excellent protection against electrical fast transients (EFT) and electrostatic discharge (ESD).

Working Principle

The working principle of the SMLJ210CE3/TR13 is a two-stage ESD protection solution. This protection works in two stages: the first stage is the clamping stage, which occurs when the TVS reaches a predetermined voltage. The second stage is the absorption stage, which occurs when the TVS is subjected to a higher voltage level.During the clamping stage, the TVS diode conducts and begins to absorb energy, thereby clamping the voltage at the maximum operating voltage level. This is because the device provides an internal resistance to the energy surge and diverts the energy from the protected circuit to the TVS diode. The clamping voltage defines the maximum operating voltage of the device. At higher voltage levels, the device transitions into the absorption stage, where the device begins to absorb the energy. This absorption stage works because the device has an internal dielectric material that dissipates the energy. This energy is released as heat, due to the current exceeded by the diode. This heat is dissipated through the junction and package, and ultimately through the heat sink of the device. Once the energy dissipates, the TVS diode returns to the clamping stage, absorbing additional energy until the over-voltage is removed. In this way, the diode can protect the device from damaging energy surges.

Conclusion

In conclusion, the SMLJ210CE3/TR13 is a unidirectional, hyperabrupt two-terminal device specifically designed for ESD suppression in high-frequency systems. It offers an ultra-low-capacitance rating of 1.2 pF, an ultra-fast response time of 10 ns typical, and a clamping voltage of 16.5 V. It is suitable for high temperature applications and has a maximum surge current rating of 125°C. This diode can be used for applications such as USB ports, high frequency ICs, wireless LANs, and HDMI ports, as well as for automotive electronics. The working principle of the device is twofold: a clamping stage, which occurs when the TVS reaches a predetermined voltage, and an absorption stage, which occurs when the TVS is subjected to a higher voltage level.

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