SMDA05E3/TR7 Circuit Protection

Current - Peak Pulse (10/1000µs):	5A (8/20µs)
Base Part Number:	SMDA
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:	400pF @ 1MHz
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	300W
Series:	TVSarray™
Voltage - Clamping (Max) @ Ipp:	11V
Voltage - Breakdown (Min):	6V
Voltage - Reverse Standoff (Typ):	5V
Unidirectional Channels:	4
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Discontinued at Digi-Key
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS diodes, named Transient Voltage Suppressors (TVS), are manufactured to protect components and systems from overvoltage electrical discharges. The SMDA05E3/TR7 from ON Semiconductor is a unidirectional TVS diode designed to protect against lightning and induced lightning. This particular device comes in a small SOT-23 package for use in applications with limited space, such as mobile devices. It is also highly specialized in protecting high-speed communication lines, such as GIT, IBIS, and HDMI. The working principle of the SMDA05E3/TR7 begins with the two D-shaped conduction areas connected on the same silicon substrate within the SOT-23 package. When the voltage across the devices reaches 6 V, both conduction areas will start to conduct, allowing current to flow and providing reverse protection to the device. The Zener, or break-down voltage, of the device is 7.5 V, which will cause an avalanche breakdown to occur. This effect causes the current to exponentially increase, providing further protection to the device. The SMDA05E3/TR7 is designed to provide surge protection in a variety of common applications. By clamping the overvoltage, it can limit the voltage on small signal lines such as OLEDs, touchscreen displays, adapters, battery interfaces, and sensors. Its small size and reverse polarity protection suits it well for use in portable applications, such as phones, tablets, and wearable devices. Additionally, its ability to clamp transients to 5.8 V at 0.25 A and 15 V at 0.5 A makes it well suited for protection of GIT, IBIS, and HDMI interfaces.Aside from portable applications, the SMDA05E3/TR7 can also be used for lightning protection in buildings, power supplies, and industrial equipment. Its ability to withstand 10,000W of surge power makes it a reliable option for protecting sensitive components. Additionally, its low clamping voltage makes it well suited for protecting unprotected, low voltage circuits. Due to its superior performance, the SMDA05E3/TR7 has become one of the most popular TVS diodes on the market. It offers many advantages over traditional surge protection components, such as a lower clamping voltage, higher surge power rating, and smaller size. As a result, it is increasingly being used in a wide variety of applications. It is becoming an essential component in today\'s electronics, and is sure to remain an important part of the electronics industry for years to come.

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