SMBG17A-M3/5B Circuit Protection

Voltage - Clamping (Max) @ Ipp:	27.6V
Supplier Device Package:	DO-215AA (SMBG)
Package / Case:	DO-215AA, SMB Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	600W
Current - Peak Pulse (10/1000µs):	21.7A
Series:	TransZorb®
Voltage - Breakdown (Min):	18.9V
Voltage - Reverse Standoff (Typ):	17V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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IntroductionTVS, or Transient Voltage Suppressor, is a type of diode specifically designed to protect sensitive electronic equipment from transient voltage surges. The SMBG17A-M3/5B is a unidirectional breakdown overvoltage protection device designed to protect against transient voltage surges. The SMBG17A-M3/5B is a IP67-rated surface mount TVS diode that provides fast, reliable surge protection in a wide range of applications. It offers excellent thermal, electrical, mechanical, and environmental performance that fits the needs of many applications.Application Field of SMBG17A-M3/5BThe SMBG17A-M3/5B is designed for all types of indoor and outdoor Enclosed electronic and electrical equipment, as well as industrial and commercial applications. It is suitable for applications in residential, business, and automotive equipment that require protection from transient voltage surge and electromagnetic interference.Common applications of the SMBG17A-M3/5B include protection of LEDs, battery powered devices, and electronic control systems in automobiles. It is also suitable for the protection of high-speed digital and analog PC boards, power supplies, power conditioning equipment, power converters, data communication equipment, and communications systems.Working Principle of SMBG17A-M3/5BThe SMBG17A-M3/5B is a unidirectional breakdown overvoltage protection device that operates by diverting surge currents away from sensitive electronic components. The device consists of a series of PN junctions that are connected in parallel with a capacitor, a resistor, and a Zener diode.When the voltage on the line exceeds the Zener voltage, the device will initiate a current breakdown along the PN junction, allowing the surge current to be dissipated by the capacitor and resistor. This type of construction allows for a high surge current capacity and fast response time, providing a reliable and effective protection from transient voltage surges.The SMBG17A-M3/5B is designed to survive up to +32V on the supply line before entering breakdown, ensuring a long service life. The device offers a wide operating temperature range of -40°C to +85°C and is available in standard EIA package sizes.ConclusionThe SMBG17A-M3/5B is a unidirectional breakdown overvoltage protection device designed to protect sensitive electronic components from transient voltage surges. This type of device offers excellent thermal, electrical, mechanical, and environmental performance, making it suitable for a wide range of applications. The device is designed to survive high voltages and provide fast response times when activated, making it a reliable protection solution for many types of electronic equipment. The SMBG17A-M3/5B is a great choice for applications such as LED protection, power supplies, and battery powered electronic control systems.

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