CF12JB240K

Overview

The CF12JB240K is a fixed carbon film resistor manufactured by Stackpole Electronics Inc. It features a resistance value of 240 kOhms with a tolerance of ±5%. The component has a power rating of 0.5W (1/2W) and operates within a temperature range of -55°C to +155°C. It utilizes an axial through-hole package with dimensions of 2.70mm diameter by 8.50mm length. The device carries RoHS3 compliance and an EAR99 classification.

Feature Summary

• Constructed from carbon film material for general-purpose electronic applications
• Features flame retardant coating as a standard safety characteristic
• Designed for through-hole mounting on printed circuit boards
• Compatible with auto-sequencing and insertion equipment

Applications

• Commercial industrial electronics circuits
• General purpose signal conditioning
• Power supply biasing networks
• Consumer appliance control panels

Procurement Notes

Verify the specific suffix 'JB' against official Stackpole documentation to confirm tolerance and series designation, as datasheets often group variants under broader series codes like CF12JT or CF12JA. Ensure the ordering quantity aligns with manufacturer standard packaging requirements rather than assuming discrete unit availability. Cross-reference the part number with current environmental compliance declarations such as RoHS3 status before finalizing procurement orders.

Selection Notes

Select this component when a 240 kOhm resistance value with 5% tolerance is required in a compact axial form factor. The 0.5W power rating supports moderate current loads in standard commercial environments. Consider the operating temperature range up to 155°C for applications involving thermal stress. Verify lead wire composition specifications if specific solderability or corrosion resistance properties are critical for the assembly process.

Part Context

This resistor belongs to the CF series of carbon film components produced by Stackpole Electronics. The series is characterized by flame retardant coatings and suitability for automated assembly processes. The CF12 designation indicates a specific physical size class within the product line, balancing power dissipation capabilities with board space constraints for standard through-hole implementations.

Replacement Considerations

CF12JT240K and CF12JA240K are documented parameter-equivalent alternatives from the same manufacturer.