SMDA12/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:	185pF @ 1MHz
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	300W
Series:	TVSarray™
Voltage - Clamping (Max) @ Ipp:	19V
Voltage - Breakdown (Min):	13.3V
Voltage - Reverse Standoff (Typ):	12V
Unidirectional Channels:	4
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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The SMDA12 and TR7 diode products are part of the transient voltage suppression (TVS) diode family. TVS diodes provide superior protection from electrical threats by safely conducting any surge current to ground and diverting it away from sensitive circuitry, resulting in enhanced electrical insulation. A TVS diode is a specialized semiconductor device designed to protect sensitive electronic components from electrical overloads caused by current transients, such as lightning strikes or electrostatic discharge (ESD).The SMDA12 and TR7 diode families offer excellent clamping performance and surge current handling capabilities. These TVS diodes are designed to protect low-voltage circuit applications such as USB, DVI, Serial ATA, and HDMI ports. The SMDA12 and TR7 are available in both unidirectional and bidirectional configurations with voltage ratings from 3V to 24V. The unidirectional SMDA12 and TR7 feature 600W peak pulse power and 1500W peak pulse power for the bidirectional configuration.The SMDA12 and TR7 diode products are manufactured with advanced technology that ensures superior ESD protection for sensitive electronic components. The TVS diode chip is enclosed in a plated metal terminal, which provides superior performance by acting as a conductor for the surge current. The high-performance TVS diode provides excellent clamping capability and a reliable surge current handling capability, which gives superior protection from current transients.The working principle of the SMDA12 and TR7 diode products is based on the Avalanche Principle, in which a fast transition in voltage causes the p-n junction of the diode to reach a breakdown voltage. The breakdown voltage is closely monitored and controlled by the low-power devices in the circuit. When the voltage exceeds this breakdown voltage, the p-n junction creates a large buildup of electrons, forming avalanche breakdown. This avalanche action creates a conductive path for the surge current, diverting it to ground and away from sensitive circuitry to protect it from damage.The SMDA12 and TR7 diode products are ideal for applications that require protection from electrical transients, such as ESD, lightning strikes, and power surges. The TVS diode is well designed and tested to ensure top-notch performance in all applications. Its small footprint, superior clamping capability, and high surge current handling capability make it an ideal choice for low-voltage circuit protection.

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