The T491A685M016AT is a surface-mount tantalum capacitor manufactured by Kemet. It belongs to the T491 series, which is a popular choice for general-purpose applications requiring stable capacitance and reliable performance. This specific component features a capacitance of 6.8µF and a voltage rating of 16V. The 'A' case size denotes its physical dimensions, designed for efficient use of PCB space.

Applications

• Decoupling Capacitors: Used to reduce noise on power supply lines for integrated circuits.
• Bypass Capacitors: Providing a low-impedance path for high-frequency signals.
• Filtering Applications: Smoothing out voltage variations in analog circuits.
• Timing Circuits: Providing stable capacitance values in timing-related applications.
• General Purpose Applications: Suitable for a wide variety of electronic circuits.

Features

• Solid Tantalum Construction: Offers stable electrical characteristics over time.
• Surface Mount Technology (SMT): Designed for automated assembly on PCBs.
• Compact Case Size: Enables high-density circuit board layouts.
• RoHS Compliant: Complies with the Restriction of Hazardous Substances directive.
• Polarized Component: Requires proper polarity during circuit integration.

Benefits

• Reliable Performance: Tantalum capacitors are known for their long-term stability.
• Compact Design: Surface mount packaging allows for smaller circuit designs.
• Ease of Assembly: Suitable for automated manufacturing processes.
• Wide Availability: The T491 series is a readily available and well-supported product.
• Cost-Effective: Offers a good balance of performance and price.

Additional Details

The capacitance tolerance is typically ±20%. The operating temperature range is generally from -55°C to +125°C. The ESR (Equivalent Series Resistance) is an important parameter for high-frequency applications, and the datasheet will provide detailed information on this specification. As a polarized capacitor, it must be connected with the correct polarity to avoid damage or failure. Consult the manufacturer's datasheet for complete specifications, including ESR, ripple current rating, leakage current, and operating temperature derating curves to ensure proper application and long-term reliability. Specified for use at 120Hz.