H445K3BYA

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Through Hole Resistors

Through Hole Resistors (THRs) are resistors that are inserted directly into the board rather than being mounted on the board. They are the most common type of resistors used in electronics, because they require a relatively small amount of space and can be easily sourced. THRs can be found in a variety of applications and are used for power, sensing, and control.

H445K3BYA Application Field and Working Principle

The H445K3BYA is a type of THR used for power applications. It is a thermally-enhanced, metal-oxide, thick-film resistor with a tolerance of ±5%. It features power handling capability of up to 5W at 25°C and offers short-term overload protection of up to 6.25W. This makes it an ideal choice for applications that require power handling at high temperatures.

The H445K3BYA’s working principle is based on the use of a metal-oxide film as a resistive element, which is then baked on a ceramic substrate. The film features a higher resistivity than traditional thick-film resistors, giving it improved temperature stability and better overload protection. The resistor also features a corrosion-resistant finish, making it ideal for use in high-temperature environments such as automotive, industrial, and power applications.

The H445K3BYA can be used in a wide variety of applications, including power supplies, motor control, and in circuit protection. It is also suitable for use in medical equipment, telecom equipment, automotive infotainment systems, and more.

In addition to its standard features, the H445K3BYA also offers an integrated PTC fuse for short-term overload protection. This ensures reliable performance and power handling capability, even under harsh conditions. The H445K3BYA has a high pulse load capability, making it ideal for applications that require effective operation under dynamic conditions.

In conclusion, the H445K3BYA THR is an ideal choice for applications that require reliable power handling, high temperature stability, and short-term overload protection. Its compact size, high pulse load capability, and corrosion-resistant finish make it ideal for use in a wide variety of applications, including automotive, industrial, and power applications.

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