NFM21HC104R1A3D

Overview

The Murata NFM21HC104R1A3D is a three-terminal feedthrough capacitor designed for surface mount technology. It features a capacitance of 0.1 µF with a tolerance of ±20% and a DC voltage rating of 10 V. The component operates within a temperature range of -55°C to +125°C and meets the AEC-Q200 automotive qualification standard. Its physical dimensions are 2.00 mm in length, 1.25 mm in width, and 0.85 mm in height, housed in an 0805 (2012 Metric) package. The device exhibits a maximum DC resistance of 30 mΩ and supports a current rating of 2 A.

Feature Summary

• Three-terminal architecture provides low impedance grounding paths for effective high-frequency noise suppression.
• AEC-Q200 qualified construction ensures reliability and durability for demanding automotive electronic environments.
• Feedthrough design minimizes parasitic inductance to maintain signal integrity in sensitive circuits.

Applications

• Automotive infotainment system power line filtering
• Electronic control unit (ECU) input/output protection
• High-speed data interface noise suppression

Procurement Notes

Verify the specific suffix R1A3D against official Murata documentation to confirm the exact voltage and tolerance specifications. Ensure that the 0805 footprint matches the target PCB layout constraints. Confirm AEC-Q200 compliance requirements align with the final assembly standards before procurement.

Selection Notes

Select this component when low parasitic inductance is critical for high-frequency noise attenuation in compact spaces. The 10V rating suits low-voltage digital logic and sensor interfaces. Consider the 2A current handling capability for power distribution lines requiring robust filtering without excessive voltage drop.

Part Context

This part belongs to the EMIFIL NFM21HC series, which focuses on automotive-grade feedthrough capacitors. The series utilizes a unique internal structure to achieve superior high-frequency performance compared to standard multi-layer ceramic capacitors. It is engineered specifically for applications requiring stringent electromagnetic interference reduction in space-constrained designs.

Replacement Considerations

Direct substitutes include other Murata NFM21HC series variants with matching capacitance and voltage ratings, such as NFM21HC104R1A3D equivalents from authorized distributors. Cross-brand replacements require careful verification of footprint, inductance characteristics, and thermal stability.