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The GCM1555C1H821JA16D is a ceramic capacitor manufactured by Murata. Below are its key specifications, descriptions, and features:

Specifications:

• Manufacturer: Murata
• Capacitance: 820 pF (0.82 nF)
• Tolerance: ±5%
• Voltage Rating: 50 V DC
• Dielectric Material: C0G (NP0) – Ultra-stable, low-loss ceramic
• Temperature Coefficient: 0 ±30 ppm/°C (C0G characteristic)
• Operating Temperature Range: -55°C to +125°C
• Package/Case: 0402 (1005 metric)
• Termination: Standard SMD (Surface Mount Device)
• ESR (Equivalent Series Resistance): Low
• Features: High reliability, RoHS compliant

Descriptions:

• A multilayer ceramic capacitor (MLCC) designed for high-frequency and precision applications.
• Suitable for RF circuits, filters, timing circuits, and decoupling due to its stable capacitance over temperature and voltage.
• Lead-free and compliant with RoHS environmental standards.

Features:

• High Stability: C0G (NP0) dielectric ensures minimal capacitance drift with temperature and voltage.
• Low Loss: Excellent high-frequency performance with low ESR.
• Compact Size: 0402 footprint (1.0 mm × 0.5 mm) for space-constrained designs.
• Reliable Performance: Suitable for automotive, industrial, and consumer electronics.

This capacitor is commonly used in RF modules, oscillators, and precision analog circuits where stability and low losses are critical.

(Note: Always refer to the official Murata datasheet for detailed electrical characteristics and application guidelines.)