CF18JB3R90

Overview

The CF18JB3R90 is a carbon film axial through-hole resistor manufactured by Stackpole Electronics Inc. It features a resistance value of 3.9 ohms with a tolerance of ±5%. The component has a power rating of 0.125W (1/8W) and operates within a temperature range of -55°C to 155°C. Its physical dimensions are 0.067 inches in diameter by 0.130 inches in length (1.70mm x 3.30mm). The part includes flame retardant safety coatings and complies with RoHS3 standards.

Feature Summary

• Flame retardant coating for enhanced safety
• Carbon film composition for general purpose use
• Axial leaded through-hole package

Applications

• Commercial electronic equipment
• Industrial control circuits
• General purpose circuit protection

Procurement Notes

Verify the specific suffix JB against official datasheets to confirm the 5% tolerance and standard packaging type. Confirm that the flame retardant coating specification matches project requirements. Check current manufacturing status as components may be subject to obsolescence notices or lifecycle changes without prior announcement.

Selection Notes

Select this component when a low-value, high-precision axial resistor is required for compact PCB layouts. Ensure the 1/8W power rating suffices for the intended thermal environment. Consider the ±400ppm/°C temperature coefficient if circuit stability across wide temperature ranges is critical for the application design.

Part Context

This resistor belongs to the CF series of carbon film resistors from Stackpole Electronics. The series is designed for general commercial and industrial applications requiring reliable performance in standard environments. The axial form factor allows for easy insertion into printed circuit boards using standard automated or manual assembly processes.

Replacement Considerations

CF18JT3R90 offers identical electrical specifications with a J-tape or cut tape packaging option instead of bulk.