CAT25-500JALF

The CAT25-500JALF resistor network, array, is a highly reliable, low profile, and high power resistive device designed for wire harness applications within the telecommunications industry. It is constructed of 25 active resistors arranged in a ‘Y’ configuration, with each resistor having a nominal value of 500 Ω. This creates a network which, by way of its inherent configuration, is particularly advantageous for applications subject to high electromagnetic interference (EMI) such as those found in telecommunications infrastructure.

The CAT25-500JALF features a total rated power dissipation of 950 mW which is higher than the traditional 300 mW resistive devices often found in this application. This feature allows more power to be dissipated within a relatively small area and also extends the useful life of the device. Additional advantages include excellent repeatability in resistance value, and tolerance to production processing and environmental variables.

The CAT25-500JALF resistor network is also highly resistant to radiation such as alpha/beta particles, cosmic rays, and gamma rays. The inherent configuration of the resistors increases the resistance to EMI and reduces the level of radiated emissions. The device has a very low inductance, and its operating temperature range is -55°C to +125°C.

The working principle behind the CAT25-500JALF resistor network is that the resistance of a single resistor is varied by adjusting the length of a wire connected to the resistor. This is done by adjusting the length of the ‘Y’ configuration of the resistor. This method is used to provide electrical isolation between the input and output of the device and to reduce the voltage drop across the device. By using this method, it is possible to precisely adjust the resistance of the device and to create more stable output signals. Additionally, it is also possible to vary the resistance of the device to produce either low, medium, or high impedance signals.

The CAT25-500JALF resistor network is a cost effective, high performance solution for applications subject to high radiated emissions or EMI. It is a well-suited choice for a variety of applications within the telecoms industry, from base station antennas to wireless local area networks (WLAN) equipment. Due to its exceptional power rating and repeatable resistance value characteristics, this device is a great choice for both high power and high gain applications.