SM8LC05/TR7

Current - Peak Pulse (10/1000µs):	5A (8/20µs)
Base Part Number:	SM8LC05
Supplier Device Package:	8-SO
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	25pF @ 1MHz
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	500W
Series:	TVSarray™
Voltage - Clamping (Max) @ Ipp:	11V
Voltage - Breakdown (Min):	6V
Voltage - Reverse Standoff (Typ):	5V
Bidirectional Channels:	2
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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SM8LC05/TR7 TVS - Diodes: Application Field and Working PrincipleTransient Voltage Suppression (TVS) diodes, also known as surge suppressors, protect vulnerable low voltage circuits from destruction due to high voltages, over current or reverse current. Such devices are necessary to avoid costly product outcomes due to power disruptions and other needs for voltage regulation. The SM8LC05/TR7 is a component of the TVS - Diodes family and it offers a solution for unidirectional and bidirectional protection at fairly low capacitance. This paper will provide detailed information about its application, fields and operation principle.The SM8LC05/TR7 is a diode that belongs to the group of low capacitance junction diodes. It is designed with low leakage current and bidirectional protection and it is suitable for various applications including automotive, consumer, industrial, medical and telecom/datacom. It is an ultra thin, multifunctional TVS diode that meets various global standards like the UL, IEC, EN and CQC (China Quality Certification). As for practices of application, the SM8LC05/TR7 is widely used for unidirectional and bidirectional protection. For example, it is commonly used for protecting telecom/datacom lines, consumer serial ports, Ethernet ports, USB ports and other high voltage initiations. It provides adequate protection while still maintaining a low capacitance and it is easy to use in terms of insertion into PCBs without any additional mounting hardware.The design of the SM8LC05/TR7 is based on its working principle, which relies on the characteristics of the avalanche breakdown phenomenon. When a reverse voltage applied to the diode is exceeded, with the current flowing through it, the internal electric field strength will reach a point where the electrons will be accelerated at a given rate, thus causing a breakdown of the diode in an avalanche-like way. This sudden reduction of the resistance of the diode will cause the voltage to drop along with the current, thus providing electrical protection.The SM8LC05/TR7 operates with an ultra low capacitance of only 2.1pF and the breakdown voltage range is from 5.6V to 5.7V, with a maximum clamping voltage of 10V for unidirectional protection and 18V for bidirectional protection. It guarantees high surge capability of up to 24A (8/20μs pulse waveform) and provides very stable thermal characteristics with a Thermal Derating Factor of 4.5%, due to its patented thermal technology.In conclusion, the SM8LC05/TR7 is undoubtedly an excellent choice when it comes to TVS - Diodes, given its low capacitance, high surge capability and patented thermal design .The SM8LC05/TR7 is suitable for many applications and it offers stable and efficient unidirectional and bidirectional protection. Consequently, it has become one of the most popular TVS Diodes on the market and it is widely used for automotive, consumer, industrial, medical and telecom/datacom applications.

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