1V5KE43A Circuit Protection

Package / Case:	DO-201AE, Axial
Supplier Device Package:	DO-201AE
Base Part Number:	1V5KE43
Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Zener
Unidirectional Channels:	1
Voltage - Reverse Standoff (Typ):	36.8V
Voltage - Breakdown (Min):	40.9V
Voltage - Clamping (Max) @ Ipp:	59.3V
Current - Peak Pulse (10/1000µs):	25.3A
Power - Peak Pulse:	1500W (1.5kW)
Power Line Protection:	No
Applications:	General Purpose
Capacitance @ Frequency:	--
Operating Temperature:	-55°C ~ 175°C (TJ)
Mounting Type:	Through Hole

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TVS - Diodes: 1V5KE43A Application Field and Working Principle

A TVS diode, also known as transient voltage suppression diode, is an active component designed specifically to protect sensitive electronic components from electrical transients, or sudden narrow power surges. For example, 1V5KE43A is a triple common-to-anode part of supplier company STMicroelectronics. It is a unidirectional type of diode packaged in SMA.1V5KE43A falls into the category of TVS - diodes, as it is designed to protect sensitive electronic components against high-voltage transients. It has applications in a broad variety of systems across multiple industry sectors including consumer electronics, communications, automotive, medical, and industrial. The 1V5KE43A is used mainly as a protection device against overvoltages in automotive electrical systems or high-amplitude signal transients in industrial power control applications. This diode also offers low capacitance, which makes it suitable for use on high-speed data lines. To understand how 1V5KE43A works, we must first understand the general working principle of TVS - diodes. TVS diodes are basically a form of voltage protection device. They act as a switch with a large avalanche current and voltage ratings, allowing them to handle a very wide range of high voltage transients. These devices work by clamping and diverting transient voltages away from sensitive circuits, protecting them from possible damage. The 1V5KE43A feature STTM technology, which is based on a low-capacitance diode structure. This technology ensures a low leakage current and can tolerate up to 1700 VRMS, while providing a 30A peak pulse current. This makes 1V5KE43A the ideal choice for applications where protection from voltage transients is essential. In order to ensure that the 1V5KE43A works at its full potential, it should be correctly installed and operated within its environmental operating specifications. The correct installation of the 1V5KE43A involves making sure it is connected properly with the components to be protected. It should be placed near to those components, as well as being appropriately positioned to avoid any source of transients. Furthermore, the 1V5KE43A should be operated within the specified parameters. This means that its rated operating temperature=-55°C to + 125°C, its power dissipation=1 W, and its storage temperature= -55°C to + 150°C should all be strictly adhered to. Overall, the 1V5KE43A is a robust and reliable TVS diode designed to protect sensitive circuitry from transient voltages. It features a low-capacitance diode structure and is packed in an SMA package. It is suitable for a wide range of applications requiring protection from high-voltage transients and it should always be installed and operated within its environmental operating specifications.

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