NFM21HC105R1C3D

Overview

The Murata NFM21HC105R1C3D is a three-terminal feedthrough capacitor from the EMIFIL NFM21HC series, designed for surface mount applications in the 0805 (2012 metric) package. It features a capacitance of 1.0 µF with a ±20% tolerance and a DC voltage rating of 16 V. The component operates within a temperature range of -55°C to +125°C and carries AEC-Q200 qualification for automotive reliability. Key electrical parameters include an insulation resistance of 500 MΩ and a rated current of 4 A. The physical dimensions are 2.0 mm in length, 1.25 mm in width, and 0.85 mm in height.

Feature Summary

• Three-terminal feedthrough architecture providing low impedance grounding paths for high-frequency noise suppression
• AEC-Q200 qualified construction ensuring suitability for demanding automotive electronic environments
• High thermal stability supporting continuous operation at elevated temperatures up to 125°C

Applications

• Automotive infotainment system power line filtering
• Electronic control unit (ECU) input/output signal conditioning
• On-board charger and power distribution network decoupling

Procurement Notes

Verify the specific suffix codes against official Murata documentation to confirm exact capacitance values and termination specifications. Ensure that the selected variant matches the required AEC-Q200 automotive grade standards for your target application environment. Cross-reference the datasheet for precise mechanical tolerances to guarantee compatibility with automated placement equipment.

Selection Notes

Select this component when high capacitance density is required in a compact 0805 footprint for automotive circuits. The three-terminal design offers superior high-frequency performance compared to standard two-terminal capacitors. Consider the 16V rating and 4A current handling capabilities when designing power rails or sensitive signal lines requiring robust noise attenuation.

Part Context

This part belongs to the Murata EMIFIL NFM21HC series, which specializes in high-capacitance, small-footprint feedthrough capacitors. The series is engineered to meet the rigorous reliability standards of the automotive industry while addressing the increasing space constraints in modern vehicle electronics. It serves as a critical component for maintaining signal integrity and power quality in dense PCB layouts.

Replacement Considerations

Direct substitutes within the same series include NFM21HC105R1C3D variants with different suffixes indicating minor packaging or tolerance changes. Verify equivalent capacitance, voltage ratings, and package dimensions before substitution to ensure circuit compatibility.