SA180A

Voltage - Clamping (Max) @ Ipp:	289V
Supplier Device Package:	DO-204AC (DO-15)
Package / Case:	DO-204AC, DO-15, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	500W
Current - Peak Pulse (10/1000µs):	1.7A
Series:	SA
Voltage - Breakdown (Min):	200V
Voltage - Reverse Standoff (Typ):	180V
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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<h2>TVS - Diodes</h2><p>Transient voltage suppression diode (TVS) is a diode specifically designed to protect an electric circuit from voltage transients, or transient overvoltage. It is widely used in the fields of electric power, communications, datacom, industrial control, medical and more. Among these, SA180A is the latest and most advanced type of TVS diode and is a semiconductor silicon oxide field effect structure, which is designed to suppress transients generated on power and communication lines. </p><h3>Application field</h3><p>SA180A is particularly suitable for the applications of portable electronic equipments, such as portable computers, PDAs etc, because the silicon oxide field effect structure of SA180A can response faster. It can also be used as the protective measures of high-frequency circuit systems that runs at the frequency range between 1MHz and 35MHz to protect them from extreme transient voltages.</p><p>Besides, the SA180A can also be used in multiple combinations of AC and DC lines as the surge device to protect electric circuits from damage or unexpected malfunctions due to lightning or other transient overvoltage. During a power surge, it can absorb the energy of the surge and divert it away from the vulnerable circuits,thus providing optimal protection. With both the higher peak pulse power capability and excellent clamping performance, SA180A is the ideal solution to a wide range of transient overvoltage applications.</p><h3>Working principle</h3><p>Basically, a TVS diode consists of a rectifying junction with a heavily doped region near the junction. The heavily doped region can be triggered by an external voltage, resulting in a rapid increase in conductivity across the device. This reduces the voltage of the subsequent voltage spikes. The positive voltage spikes (positive transient) can be prohibited by connecting the diode in the forward direction, while the negative voltage spikes (negative transient) can be withheld by connecting the diode backwards.</p><p>In the case of SA180A, its unique silicon oxide field effect structure enables it to clamp voltages faster and higher peak pulse power capability. It has an optimized PN junction breakdown process to withstand higher voltage levels compared to the traditional TVS diode. It has an extremely fast response time, and thus is capable of responding to rapidly changing transient overvoltage levels. Additionally, it also has a variety of breakdown options to cater to different applications.</p><p>In a nutshell, SA180A is an advanced TVS diode that specializes in protection against transient overvoltage, and its silicon oxide field effect structure ensures that the response time is faster. It can be used for a variety of applications, and has both higher peak pulse power capability and excellent clamping performance to protect electric circuits from damage due to transient overvoltage. </p>

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