KYOCERA AVX 1812GC472KAT1A: High-Voltage Ceramic Capacitor for Reliable Performance
KYOCERA AVX 1812GC472KAT1A: High-Voltage Ceramic Capacitor for Reliable Performance
The KYOCERA AVX 1812GC472KAT1A is a premium multilayer ceramic capacitor (MLCC) engineered for demanding high-voltage applications. This surface-mount component delivers exceptional performance in power electronics, industrial systems, and telecommunications infrastructure where reliability under extreme conditions is critical.
Technical Specifications and Features
Electrical Characteristics
- Capacitance: 4700pF (4.7nF) with 10% tolerance
- Voltage Rating: 2000V DC (2kV) - one of the highest in its class
- Temperature Coefficient: X7R (-55 C to +125 C with 15% capacitance variation)
- Dielectric Material: High-quality ceramic formulation
Physical Attributes
- Package Size: 1812 (4532 Metric) - 4.6mm 3.2mm 2.2mm
- Termination: Nickel barrier with tin-plated finish for excellent solderability
- Construction: Multilayer design with internal series construction for high-voltage handling
Performance Advantages
Superior High-Voltage Capability
The 1812GC472KAT1A's 2000V rating makes it ideal for:
- Switch-mode power supplies (SMPS)
- Power conditioning circuits
- Industrial motor drives
- Medical equipment power systems
- RF power amplifiers
Exceptional Temperature Stability
The X7R characteristic ensures:
- Minimal capacitance drift across -55 C to +125 C range
- Reliable operation in harsh environments
- Consistent performance in automotive under-hood applications
Enhanced Reliability Features
- Flex crack-resistant design
- Low ESR (Equivalent Series Resistance)
- High insulation resistance (>10G )
- RoHS compliant and lead-free
Design Considerations
PCB Layout Recommendations
For optimal performance with the 1812GC472KAT1A:
- Maintain minimum 0.5mm clearance from other components
- Use thermal relief patterns for solder joints
- Avoid placing near board flex points
- Consider using two vias per terminal for high-current applications
Application Circuits
This capacitor excels in:
- DC-DC converter input/output filtering
- Snubber circuits for power semiconductors
- Resonant circuits in high-voltage power supplies
- Coupling/decoupling in RF systems
Comparison with Alternatives
| Parameter | 1812GC472KAT1A | Standard 1812 Capacitors |
|---|---|---|
| Voltage Rating | 2000V | Typically 500V-1000V |
| Temperature Stability | X7R ( 15%) | Often Y5V (+22/-82%) |
| Reliability | High-voltage tested | Basic qualification |
Purchasing Information
The 1812GC472KAT1A is available through authorized distributors with:
- Standard tape and reel packaging (3000 pieces per reel)
- Moisture sensitivity level (MSL) of 1 (unlimited floor life)
- Manufacturer lead time typically 6-8 weeks
Conclusion
The KYOCERA AVX 1812GC472KAT1A represents the pinnacle of high-voltage ceramic capacitor technology, offering engineers a robust solution for demanding applications. Its combination of 2000V rating, X7R stability, and compact 1812 footprint makes it uniquely positioned in the market. For design engineers working on power electronics, medical equipment, or industrial systems, this capacitor provides the reliability and performance needed to ensure long-term system operation.
When selecting components for your next high-voltage design, consider the 1812GC472KAT1A for its proven track record in critical applications. Contact our technical support team today for application assistance or to request samples of this exceptional high-voltage capacitor solution.