SMDB12/TR7 Circuit Protection

Current - Peak Pulse (10/1000µs):	5A (8/20µs)
Base Part Number:	SMDB
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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TVS - Diodes

TVS diode refers to Transient Voltage Suppression. TVS diodes are a special type of diodes primarily designed to protect semiconductor components to prevent damages due to voltage or current transients. They act as both a high speed clamp and a component protector at higher voltage and current transient levels. TVS diodes are used in a variety of applications including computer peripherals, telecom, consumer electronics and automotive.The SMDB12/TR7 is a precision bidirectional TVS diode integrated in a surface-mount RoHS compliant plastic package. It offers a wide range of breakdown voltage from 4 V to 40 V, with a low maximum clamping voltage to protect sensitive components such as microcontrollers and high-speed data transmission lines. The SMDB12/TR7 also features a low leakage current that keeps low heat dissipation.The SMDB12/TR7 is used in applications such as telecom, automotive, computer peripherals, consumer electronics and power supplies. It is designed to protect circuits and components such as microprocessors, memory chips and power lines from electrostatic discharges (ESDs), electrical fast transients (EFTs), induced lightning and surge currents. It provides effective protection with low power consumption and is compliant with most industry standards.The working principle of the SMDB12/TR7 is based on optimized voltage clamping. The device is designed to provide a low clamping voltage in response to an overvoltage, thus limiting the surge voltage across the protected components. It has high-speed, high-efficiency operation and is designed to be triggered by a surge in voltage, current or temperature.When the transient voltage reaches the forward breakover voltage of the device, the avalanche voltage breakdown occurs, which conducts current through the device and thus providing the desired protection. The SMDB12/TR7 achieves a lower clamping voltage compared to other type of TVS diodes due to its optimized breakdown circuit. Moreover, it has a low capacitance that does not affect the signal transit time of the protected circuit.In conclusion, the SMDB12/TR7 is a precision bidirectional TVS diode that offers superior protection of sensitive components from overvoltage and current transients. It provides minimized leakage current for lower heat dissipation and features optimized breakdown voltage with low capacitance. The SMDB12/TR7 is suitable for applications such as telecom, automotive, computer peripherals, consumer electronics and power supplies.

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