RNF14FBE49K9

Overview

The RNF14FBE49K9 is a precision metal film axial through-hole resistor manufactured by Stackpole Electronics Inc. It features a nominal resistance of 49.9 kOhms with a tight tolerance of ±0.1%. Rated for 0.25 Watts (1/4W) power dissipation, the component maintains stability across an operating temperature range of -55°C to +155°C. The unit exhibits a temperature coefficient of resistance (TCR) of ±25ppm/°C and utilizes a flame-retardant coating for safety compliance.

Feature Summary

• Precision metal film construction ensures superior electrical performance and low noise characteristics.
• Standard flame-retardant coating provides enhanced safety and fire resistance.
• Axial leaded package design facilitates reliable through-hole mounting on PCBs.

Applications

• High-precision analog signal conditioning circuits
• Medical instrumentation measurement bridges
• Test and measurement equipment calibration networks

Procurement Notes

Verify the specific suffix code against the manufacturer datasheet to confirm tolerance and TCR specifications. Ensure the ordering quantity aligns with standard packaging configurations. Confirm RoHS3 compliance status for current production runs. Cross-reference the full part number to distinguish between similar series variants with different performance metrics.

Selection Notes

Select this component when circuit accuracy requires ±0.1% tolerance and low thermal drift is critical. The ±25ppm/°C TCR makes it suitable for environments with significant temperature fluctuations. Consider the axial form factor for applications requiring robust mechanical leads rather than surface mount alternatives.

Part Context

This resistor belongs to the RNF series of general-purpose and precision metal film resistors from Stackpole Electronics. The series offers various resistance values and tolerances, balancing cost-effectiveness with high reliability. It serves as a standard passive component in electronic assemblies requiring stable resistive elements.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs before sourcing alternative manufacturers.