MSMBJ120AE3

Voltage - Clamping (Max) @ Ipp:	193V
Supplier Device Package:	SMBJ (DO-214AA)
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	600W
Current - Peak Pulse (10/1000µs):	3.1A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	133V
Voltage - Reverse Standoff (Typ):	120V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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TVS Diodes are a type of semiconductor device commonly used in electronics. These devices are used in different applications such as voltage protection, signal level translation, voltage regulation, transient suppression, and so on. The MSMBJ120AE3 TVS Diode is one of the most popular types of TVS diodes available on the market. It is a surface mount device and features a uni-directional design.The MSMBJ120AE3 is designed for many different applications. It is ideal for protection against voltage transients, particularly in automotive and consumer electronics. It is mainly used for EMI/RFI protection and can also be used for data/telecom line protection. The device can also be implemented for military applications.The MSMBJ120AE3 features a two-lead surface-mount configuration with a breakdown voltage rating of 119.8V and a low, 0.8V turn-on voltage. It also provides an excellent current blocking capability of 1.5A. It is available in a standard SOT-223 package, and can be used in both through-hole and surface mount applications. The device also features a built-in thermal protection circuit and can achieve temperatures up to 175°C.When used in applications requiring protection from transients, the MSMBJ120AE3 helps provide protection against electrical over-stress (EOS) caused by overvoltage and voltage spikes. It works by clamping the voltage and prevents it from exceeding the breakdown voltage of the device. The device helps protect the connected system against voltage transients and is often referred to as a Transient Voltage Suppression (TVS) diode.When it comes to working principle, the MSMBJ120AE3 combines a zener and a switching element in order to provide a low impedance path for current. It first operates as a zener diode and clamps the voltage at its breakdown voltage. When the transient voltage spikes, the switching element turns on and dissipates the power that has built up. This is how the device suppresses the transient voltage and protects the connected system.In conclusion, the MSMBJ120AE3 is a TVS diode used for protecting circuits against transient voltage. It is a popular choice for automotive and consumer electronics applications, and provides excellent current blocking capabilities. It combines a zener diode and a low impedance switching element to suppress transient voltages and protect the system.

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