IRC Carbon Composition Resistor IBT Series Datasheet

Category: Electronics, Resistors, TT Electronics PLC

Overview of IRC Carbon Composition Resistor IBT Series

The datasheet presents detailed information on the IRC Carbon Composition Resistors, prominently associated with the IBT series. These resistors are manufactured by IRC, a company recognized for complying with ISO-9001 standards, highlighting their commitment to quality assurance and industry norms. The resistors under this series are optimized for their hot molded design, which enhances product consistency. They offer robust performance, making them suitable for applications that demand efficient pulse-load handling.

Performance Characteristics

This document outlines the performance characteristics tested in accordance with MIL-STD-202, which relates to the electrical features of the IBT series resistors. These resistors come with power ratings of 1/4W and 1/2W, and their performance varies in different ambient temperatures, with the resistors being derated to zero load at a maximum ambient temperature of +130°C. They offer a nominal resistance range from 10 ohms to 5.6 mega ohms and 10 ohms to 20 mega ohms for 1/4 watt and 1/2 watt models, respectively. Standard resistance tolerances are set at ±5% and ±10%, ensuring reliability.

Key specifications include:

Rated Continuous Working Voltage (RCWV): Lower than either VPxR or 250/350 volts for 1/4W and 1/2W models respectively.
Dielectric Withstand Voltage: Capable of withstanding up to 325V for 1/4W and 450V for 1/2W.
Insulation Resistance: A minimum of 10,000 mega ohms.
Voltage Coefficient of Resistance: Demonstrates minimal resistance change with voltage fluctuation.

Resistance Temperature Characteristics

The datasheet specifies the resistance temperature characteristics for the resistors, presenting the maximum percentage change in resistance over a range of temperatures from -55°C up to +105°C. These variations are dependent on the resistance range, from under 1K ohms up to 10 mega ohms, ensuring the resistors are adaptable to a wide range of operating conditions.

Physical Dimensions and Packaging

Dimensions of the resistors are detailed for both models in the series—IBT 1/4 and IBT 1/2—with precise measurements provided in inches and millimeters to facilitate proper integration into various electronic applications. The resistors are packaged in quantities of 5000 per reel or 100 per bulk to accommodate mass production assembly and stocking requirements.

For additional information, support, or to make inquiries, the corresponding contact details including telephone and fax numbers, as well as the website, are provided. The physical address of the Wirewound and Film Technologies Division located in Boone, North Carolina is also included for direct correspondence.