CF12JB51R0

Overview

The CF12JB51R0 is a through-hole axial carbon film resistor manufactured by Stackpole Electronics Inc. It features a resistance value of 51 Ohms 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. Its physical dimensions are 0.106 inches in diameter by 0.335 inches in length (2.70mm x 8.50mm). The device complies with RoHS3 standards and carries an ECCN classification of EAR99.

Feature Summary

• Constructed with a carbon film resistive element for stable performance.
• Features a flame-retardant coating to enhance safety during operation.
• Designed with axial leads for standard through-hole PCB mounting.

Applications

• General-purpose electronic circuit current limiting
• Voltage divider networks in consumer electronics
• Signal conditioning circuits requiring standard tolerance

Procurement Notes

Verify the specific suffix 'JB' against official Stackpole documentation to confirm it denotes the standard ±5% tolerance variant, as some distributors may list generic equivalents. Ensure the ordering quantity aligns with manufacturer standard packaging configurations, typically sold in bulk reels or tubes, rather than individual units. Cross-reference the datasheet revision date to ensure compliance with current environmental regulations such as RoHS3.

Selection Notes

Select this component when a 51 Ohm resistance with ±5% tolerance is required for general applications. The 0.5W power rating suits low-to-medium current circuits. Consider the CFM series if moisture-resistant coatings are needed, or the ASRM series for higher precision requirements. Verify that the axial lead spacing matches the target PCB footprint before finalizing the design.

Part Context

This part belongs to the CF series of carbon film resistors from Stackpole Electronics. These components are widely used in industrial and commercial equipment due to their reliability and cost-effectiveness. The CF series offers various power ratings and resistance values, providing engineers with flexible options for standard analog and digital circuit designs.

Replacement Considerations

CF12JT51R0: A direct equivalent from the same manufacturer offering identical electrical specifications and physical form factor.