P4SMA540A-M3/61 Circuit Protection

Voltage - Clamping (Max) @ Ipp:	740V
Supplier Device Package:	DO-214AC (SMA)
Package / Case:	DO-214AC, SMA
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	300W
Current - Peak Pulse (10/1000µs):	410mA
Series:	P4SMA, TransZorb®
Voltage - Breakdown (Min):	513V
Voltage - Reverse Standoff (Typ):	459V
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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TVS - Diodes

The P4SMA540A-M3/61 device is a Transient Voltage Suppressor (TVS) that falls into the subset of TVS Diodes. Diodes, in a battery of TVS protection devices, are used for their stable electrical properties and their low cost. Diodes are ideal for many applications because they only allow in one direction. There are a few different types of TVS Diodes, and the P4SMA540A-M3/61 device is a fast-switching diode.

Application Field

The P4SMA540A-M3/61 device is specifically designed for high speed telecommunications and networking applications. This device is commonly used to protect sensitive electronic components from electrical transient noise or lightning strikes. In addition, this diode can be used as a switch in a series of other types of protection devices and circuit designs. Common applications include device protection in USB, Ethernet/RJ45, and FireWire applications.

Working Principle

The P4SMA540A-M3/61 device is basically a diode and a resistor connected in parallel configuration. When the input voltage is above the breakdown voltage, or Zener voltage, of the diode, the diode conducts and forms a parallel path to ground. The resistor limits the discharge of this current and also forms a parallel path to ground.When the input voltage is lower than the Zener voltage, the diode does not conduct and the resistor acts as an open circuit. This combination of the diode and resistor creates a stable, protective environment for the circuit. The breakdown voltage allows for a wide operating voltage range and the high power rating of the device, making it highly effective for protecting sensitive components.

Conclusion

The P4SMA540A-M3/61 device is a great example of a fast-switching diode from the TVS Diode family. This device is ideal for high speed telecommunications applications such as USB, Ethernet/RJ45, and FireWire, among others. With its wide operating voltage range and its high power rating, this device is a great tool for protecting sensitive components.

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