OL5645E-R52 Datasheet/PDFThrough Hole Resistors
The OL5645E-R52 is a through hole resistor, specifically a form of resistive element that is used in electronic circuits. A through hole resistor is a component that is attached to a circuit board either by a wave soldering or soldering iron, having two electrical contacts that protrude through the circuit board, and a resistance value that is calibrated to meet the circuit\'s needs. The OL5645E-R52 is an axial leaded 5 watt resistor composed of a metalized ceramic substrate body coated with a high temperature-resistant protective coating, which is designed for high ambient temperature operation.
Application Field
The OL5645E-R52 is mainly used for power supply circuits, transformer circuits, power amplifiers, RF amplifiers, audio power amplifiers, switching power supplies, and various electronic equipment applications. With its 5 W power rating and temperature coefficient of +100 PPM/°C (-55+265), it is suitable for many applications in the industrial and consumer electronics industry. In addition, it has a low self-heating performance and high power dissipation capability, which makes it suitable for high-power applications. It also features a mechanical strength that can handle shock and vibration, making it suitable for use in robotic movement and other industrial applications where reliability is critical.
Working Principle
The OL5645E-R52 is a through hole resistor that utilizes a ceramic substrate to provide the desired resistance. The ceramic substrate is metallized with a conductive layer that is coated with the desired resistance value. This resistance value is established by a process called firing, which utilizes a heating element to turn the conductive layer into a resistive layer. The ceramic substrate is then insulated from the circuit board on which it is mounted with a dielectric film. An electrical current is then applied to the resistor through the circuit board. As the electrical current passes through the resistance layer, it heats up the resistor, and this heat is dissipated through the dielectric film.
The OL5645E-R52 allows for a precise resistance value to be established, ensuring that the necessary current is applied to the circuit. In addition, it is designed to dissipate heat quickly, preventing any potential damage to the circuit from overheating. Its temperature coefficient of +100 PPM/°C (-55+265) ensures that the resistance value remains stable over a wide range of temperatures, allowing for the resistor to be used in a variety of applications.
Conclusion
The OL5645E-R52 is a through hole resistor that is mainly used in power supply circuits, transformers, power amplifiers, and other industrial and consumer electronics applications. It features a precision resistance value and temperature coefficient, making it suitable for a range of applications. Its high reliability and mechanical strength make it a reliable component for industrial applications. The OL5645E-R52 is an ideal choice for electronic circuits that require precision and durability.