Voltage - Clamping (Max) @ Ipp:	76.7V
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):	6.5A
Series:	TransZorb®
Voltage - Breakdown (Min):	47.8V
Voltage - Reverse Standoff (Typ):	43V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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SA43-E3/73 Application Field and Working Principle

The SA43-E3/73 is a transient voltage suppression (TVS) diode used in various electronic applications. This TVS diode serves as a very important element in protecting the electronic components from transient voltage surges. It is mainly used in automotive systems and can provide up to 12 volts of surge suppression.The SA43-E3/73 is a small form factor diode package consisting of two TVS diodes and a thermal element. This package provides superior transient voltage suppression performance and is suitable for use in automotive systems. The package includes a built-in thermistor which helps to protect itself from thermal stress.When it comes to the application field of the SA43-E3/73, it is mainly used in automotive systems. It can provide excellent protection against various voltage surges including electrostatic discharge (ESD). This TVS diode is also suitable for use in other fields such as industrial systems, military applications, and medical applications.When it comes to the working principle of the SA43-E3/73, it is quite simple. The two diodes within the package each act as a limiting element. The diode connected between the signal and ground will clamp the signal to the ground potential. The other diode connected across the signal line and power source will clamp the signal to the power potential. By limiting the voltage to the clamp level, the TVS diode can protect the electronic components from damage.The thermal element within the package helps to reduce the thermal stress caused by the transient voltage surges. This thermal element helps to regulate the internal temperature of the diode, thereby preventing damage to the components due to excessive temperature. Moreover, it also helps to reduce the power dissipation of the diode, thereby increasing the efficiency and the reliability of the TVS diode.In conclusion, the SA43-E3/73 is a very useful and important element, and its application field and working principle serves to protect many electronic components from transient voltage surges and excessive temperatures. The package offers superior quality and performance at an affordable cost, making it a great choice for many applications.

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