H42K0BYA

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Through Hole Resistors are used to limit current, divide voltages or set reference voltages, and are an essential part of any circuit. The H42K0BYA is a 4.7K ohm Through Hole Resistor and is widely used in medical, consumer and industrial applications. This article will discuss the application field and working principle of the H42K0BYA.

Application Field: The H42K0BYA resistance is a popular choice among engineers and designers for its anti-surge and anti-vibration capabilities. It is widely used in automotive, medical, consumer, and industrial applications, such as power distribution systems, temperature control systems, and timing circuits. It is ideal for high-voltage switching circuits thanks to its low thermal coefficient and accuracy. The H42K0BYA has an operating temperature range of -55 degrees Celsius to +155 degrees Celsius, making it suitable for temperature-critical applications.

Working Principle: The H42K0BYA is a four-terminal device that works on the principle of ohm’s law: the voltage across a resistor or conductor is directly proportional to the current. The H42K0BYA is able to dissipate the energy supplied across its terminals without a voltage drop. This is because the resistance is constant over a range of current, and the voltage is proportional to the current. In other words, the H42K0BYA is able to maintain a constant current and voltage even as the resistance changes.

The H42K0BYA is a non-inductive four-terminal Through Hole Resistor. It has a resistance range of 4.7K ohms, and is available in ±3% tolerance and ±5% tolerance. The device comes in a DIP-8 package and is rated for 200 Volts and 0.5 Watts. It is manufactured using a thick-film technology, which combines conductive materials like NiCr, conductive epoxy, and glass frit to provide excellent electrical insulation between each layer.

The H42K0BYA is designed with two external connections; one terminal is used for the power supply, the other for the peripheral device. The internal circuit consists of two discrete resistors connected in series. The resistor values of the two resistors are different, but within the tolerance range of the device, allowing the voltage across each of the resistors to remain constant. The resistance is also temperature dependent, as the temperature coefficient of the device is positive.

The H42K0BYA is a reliable, cost-effective Through Hole resistor that is suitable for a wide range of applications. It provides excellent insulation and surge protection, and its low thermal coefficient and accuracy make it suitable for high-voltage switching circuits. The device is also able to maintain a constant current and voltage, even as the resistance changes, making it an ideal choice for temperature control and timing circuits.

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