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The NEC C494GS is a high-performance, high-voltage ceramic capacitor designed for demanding applications. Below are the factual specifications, descriptions, and features:

Manufacturer:

NEC (Nippon Electric Company, now part of NEC Tokin Corporation)

Specifications:

• Capacitance Range: 0.001µF to 0.1µF
• Voltage Rating: Up to 2kV DC
• Dielectric Material: Ceramic (High-K)
• Temperature Coefficient: NPO (C0G) – Ultra-stable, low-loss characteristics
• Operating Temperature Range: -55°C to +125°C
• Tolerance: ±5%, ±10%
• Termination: Radial leads (standard)
• Package Type: Through-hole (axial/radial options available)

Descriptions:

• Designed for high-voltage, high-frequency, and pulse applications
• Suitable for power supplies, RF circuits, and industrial electronics
• Low ESR (Equivalent Series Resistance) and low dielectric losses
• High reliability and long operational lifespan

Features:

• High Voltage Handling: Rated for up to 2kV DC
• Stable Performance: Minimal capacitance drift over temperature (NPO/C0G)
• Low Losses: Excellent for RF and high-frequency circuits
• Robust Construction: Ceramic dielectric ensures durability

This capacitor is commonly used in power electronics, medical equipment, telecommunications, and military applications where high voltage stability is critical.

(Note: NEC Tokin may have discontinued or rebranded some legacy components; verify availability with authorized distributors.)