Little Rebels Carbon Film Resistors by Ohmite

Category: Electronics, Ohmite Manufacturing Co, Resistors

Little Rebels Carbon Film Resistors Overview

The Little Rebels series are a cost-effective range of low wattage carbon film resistors constructed by Ohmite. This line is characterized by its superior stability performances as compared to other carbon composition resistors, achieved through the use of a pure carbon film deposited on a high-grade ceramic core. Additional features include solder-coated copper terminals for improved connectivity.

Electrical Specifications

These resistors are tailored for electrical and electronic applications that require both compact sizes and a minimal power rating without compromising on their high performance and reliability. The resistors are available with tolerances of ±5%, and they come in various series wattages including 0.125W, 0.250W, 0.500W, 1.00W, and 2.00W, with maximum working voltages from 200 to 5000 volts, depending on the series.

They also have a range of Ohmic values available within the E24 decimal increments. The Temperature Coefficient ranges from -450 ppm/°C for resistors between 1Ω and 91KΩ, to -800 to -1500 ppm/°C for 1.1MΩ to 10MΩ values.

Physical Properties

Little Rebels are manufactured to accommodate various sizes and power requirements. This is reflected in the selection of resistors with diameters ranging from 3.5mm to 16.0mm, and lengths from 3.5mm to 16.0mm, ensuring compatibility with an array of design requirements.

Derating and Overload Voltage

The derating curve is linear, starting at 100% at +70°C down to 0% at 155°C, ensuring stability across a wide temperature range. The resistors can handle a maximum overload voltage in the span from 400 volts for the smallest 0.125W units up to 1000 volts for the higher wattage 1.00W units.

Additional Options and Packaging

There is an option to purchase these resistors as part of cabinet assortments, which are detailed on a separate page (Page 34) of the datasheet. They come with various options for bulk packaging, including different quantities per reel suited for mass manufacturing processes.

Ordering Information

The datasheet also outlines the stock part numbers for standard resistance values, which simplifies the ordering process. A comprehensive chart provides the stock part numbers for a range of wattages and Ohmic values, increasing the efficiency for customers when selecting suitable components for their needs.

Contact Information

For more information regarding the Little Rebels Carbon Film Resistors, it’s advisable to contact Ohmite Manufacturing at their Howard St. address or via the provided telephone number and email. Additionally, visitors are directed to Ohmite’s website through the provided URL.