NFM21PC474R1C3D: High-Performance Feed Through Capacitor by Murata Electronics

The NFM21PC474R1C3D is a premium feed-through capacitor from Murata Electronics, a global leader in electronic components. This high-reliability component excels in filtering applications where precision and performance are critical. In this comprehensive guide, we explore its technical specifications, applications, and why it stands out in the competitive capacitor market.

Detailed Product Specifications

Electrical Characteristics

• Capacitance: 0.47 F 20% tolerance
• Rated Voltage: 16V DC
• Current Handling: 2A maximum
• DC Resistance: 30m
• Insulation Resistance: 100M

Physical Attributes

• Package: 0805 (2012 Metric) with 3 PC Pad
• Dimensions: 2.00mm x 1.25mm (LxW)
• Height: 0.95mm maximum
• Termination: Nickel barrier with tin plating

Environmental Ratings

• Temperature Range: -55 C to +125 C
• RoHS Compliance: Yes
• Halogen-Free: Yes

Advanced Features

The NFM21PC474R1C3D incorporates several innovative technologies:

1. Multi-Layer Ceramic Design: Provides stable capacitance across temperature variations
2. Low ESR Construction: Enhances high-frequency performance
3. Feed-Through Architecture: Optimizes EMI/RFI suppression
4. Automotive-Grade Materials: Ensures reliability in harsh environments

Comprehensive Applications

Primary Use Cases

1. Power Supply Filtering:
Effectively suppresses high-frequency noise in:
- DC/DC converters
- Voltage regulators
- Switching power supplies

2. Signal Integrity Management:
Improves signal quality in:
- High-speed data lines
- RF communication circuits
- Sensor interfaces

3. Automotive Electronics:
Reliable performance in:
- Engine control units
- Infotainment systems
- ADAS components

Industry-Specific Applications

Industry	Applications
Telecommunications	Base stations, network equipment
Medical	Patient monitoring, imaging systems
Industrial	PLC, motor drives, robotics
Consumer	Smartphones, wearables, IoT devices

Technical Advantages

Performance Benefits

1. Enhanced Filtering Efficiency:
The feed-through design provides superior high-frequency attenuation compared to conventional capacitors, with insertion loss exceeding 40dB at 1GHz.

2. Thermal Stability:
Exhibits minimal capacitance variation ( 15%) across the entire operating temperature range.

3. Long-Term Reliability:
Murata's proprietary ceramic formulation ensures:
- >100,000 hours operational life
- Resistance to thermal shock
- Minimal aging effects

Design Considerations

PCB Layout Recommendations

1. Place as close as possible to noise sources
2. Use wide traces for high-current applications
3. Implement proper grounding techniques
4. Consider using multiple capacitors for broadband filtering

Compatibility Information

The NFM21PC474R1C3D is compatible with:
- Standard reflow soldering processes
- Wave soldering (with proper thermal profiling)
- Automated pick-and-place equipment

Comparative Analysis

When compared to similar feed-through capacitors, the NFM21PC474R1C3D offers:
- 20% higher current rating than industry average
- 30% lower ESR
- Wider operating temperature range
- More stable capacitance vs. voltage characteristics

Purchasing Information

The NFM21PC474R1C3D is available through:
- Authorized Murata distributors
- Online electronic component retailers
- Direct from Murata for volume purchases

Typical lead times:
- Stock items: 1-3 days
- Non-stock: 4-6 weeks

Conclusion

The NFM21PC474R1C3D represents Murata's commitment to delivering high-performance filtering solutions. Its combination of technical specifications, reliability, and compact form factor makes it an excellent choice for demanding applications across multiple industries. Engineers can trust this component to deliver consistent performance in even the most challenging environments.

For detailed technical support or application engineering assistance, contact Murata's technical support team or visit their official website for the latest datasheets and application notes.