P6SMB9.1CAHE3/5B Circuit Protection

Current - Peak Pulse (10/1000µs):	44.8A
Base Part Number:	P6SMB
Supplier Device Package:	DO-214AA (SMB)
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	600W
Series:	Automotive, AEC-Q101, P6SMB, TransZorb®
Voltage - Clamping (Max) @ Ipp:	13.4V
Voltage - Breakdown (Min):	8.65V
Voltage - Reverse Standoff (Typ):	7.78V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes have many applications, and the P6SMB9.1CAHE3/5B is no exception. This TVS - Diode is designed to protect high-voltage lines in communications systems, such as power-line networking and Ethernet. By redirecting the intense electrical current away from a vulnerable component, the P6SMB9.1CAHE3/5B provides uninterrupted power or data. In addition to its more traditional application as a protection device, the P6SMB9.1CAHE3/5B may also be used as a transient generator in testing and evaluation of power and data lines. Its fast switching speed, low capacitance, and minimal voltage interference make the P6SMB9.1CAHE3/5B an ideal choice for these functions.The working principle of the P6SMB9.1CAHE3/5B is quite simple. It is a bi-directional Zener diode that is designed to clamps the voltage when there is an excessively strong current. The diode is connected across the power or data line, and when the current rises above its triggering threshold, it quickly diverts the current to the diode’s lower rated line, defeating the surge.The P6SMB9.1CAHE3/5B also helps reduce capacitor droop by clamping voltage transients around the electrolytic capacitors that are commonly used in power supplies. The unwanted voltage is shunted through the diode, allowing the capacitors to hold a steady voltage. Without droop, the capacitors will maintain their performance and extend the lifetime of the device.Another application of the P6SMB9.1CAHE3/5B is its use in automotive electronics. Common in vehicles today, the diode clamps voltage transients created by inductive shock, halogen lighting spark overs, and electrostatic discharge. This reduces interference that can cause critical malfunctions in vital systems, including the braking, transmission, and ignition systems.Finally, the P6SMB9.1CAHE3/5B can be used in high-voltage circuits, providing protection from false triggering and ESD caused by electrical noise. The diode also helps reduce power supply ripple, which can increase if the power line is not properly filtered.In summary, the P6SMB9.1CAHE3/5B TVS - Diode is a versatile and reliable protection device that can be used in a variety of high-voltage applications. Its bi-directional Zener diode construction provides protection from overly strong currents and extended life for capacitors. The diode can also be used in automotive systems, providing a low-profile solution for voltage transient protection. Lastly, the diode helps reduce power supply ripple and potential false triggering in high-voltage circuits.

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