SA90HE3/73

Voltage - Clamping (Max) @ Ipp:	160V
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:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	500W
Current - Peak Pulse (10/1000µs):	3.1A
Series:	Automotive, AEC-Q101, TransZorb®
Voltage - Breakdown (Min):	100V
Voltage - Reverse Standoff (Typ):	90V
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Part Status:	Obsolete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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TVS - Diodes - SA90HE3/73 Application Field and Working Principle

Over the years, Transient Voltage Suppression (TVS) devices have become increasingly popular with engineers for protecting circuits from voltage spikes, power surges, and other types of electrical disturbances. The SA90HE3/73 is a TVS diode designed specifically to protect circuits from abnormally high voltage transients. This diode has a wide range of features, which makes it an ideal choice for applications in various industries. In this article, we will discuss the application field and working principle of the SA90HE3/73 TVS diode.The SA90HE3/73 TVS diode is designed for protection of sensitive components from excessively high voltage, and is suitable for a variety of applications. It offers a variety of protection packages such as surface mount, through-hole, plastic encapsulated, axial leaded, and custom packages. This makes the SA90HE3/73 TVS diode a great fit for a variety of printed circuit board (PCB) designs. It is common to see this diode used in DC automotive applications, as well as protection for air conditioning equipment, power supplies, and other sensitive electronic components.The SA90HE3/73 TVS diode utilizes a three-terminal structure, with one terminal functioning as the anode, one terminal as the cathode, and one terminal as the ground. When a high voltage transient is applied to the SA90HE3/73 diode, it quickly conducts the excess voltage to the ground terminal. This protects sensitive components from the excessive voltage. The transient protection voltage of this diode is 9 V, while the peak pulse power is 500 W. This diode can stand up to relatively high levels of current, which makes it a good choice for many applications.The working principle of the SA90HE3/73 TVS diode is fairly simple. When a high voltage transient is applied to the diode, the internal diode turns on and conducts the excessive voltage to the ground terminal. This prevents the excessive voltage from reaching and damaging other electronic components. The diode also has an internal circuit that limits the current flow through the diode, preventing it from exceeding safe levels and providing enhanced protection for sensitive components.Overall, the SA90HE3/73 TVS diode is a great choice for a variety of applications. It offers a wide range of features, including its protection packages, transient voltage protection and peak pulse power. The diode is also reliable and easy to use in various PCB designs. Its internal circuit provides enhanced protection, and the working principle is fairly easy to understand. It is no wonder why this diode is so popular with engineers.

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