The T491B105M025AS is a surface-mount solid tantalum capacitor from Kemet's T491 series. It is designed for general-purpose applications where a stable and reliable capacitance is needed, particularly at a 25V rating. These capacitors are characterized by their small size, robust construction, and consistent electrical characteristics.

Applications

• Decoupling in digital circuits
• Filtering in power supplies
• General purpose applications in commercial and industrial electronics
• Suitable for use in portable electronic devices
• Telecommunications equipment

Features

• Surface mount design for automated assembly
• Solid tantalum capacitor
• Molded case for protection
• Stable electrical performance over temperature
• RoHS compliant
• Available in various case sizes and voltage ratings

Benefits

• Small size allows for high-density circuit board designs
• Reliable performance ensures long operational life
• Stable capacitance and ESR (Equivalent Series Resistance) minimizes circuit performance variations over temperature
• Suitable for high-volume automated assembly, reducing manufacturing costs
• Environmentally friendly due to RoHS compliance

Specifications

The T491B105M025AS has the following specifications:

• Capacitance: 1µF
• Voltage Rating: 25V
• Tolerance: ±20%
• ESR (Equivalent Series Resistance): 9 Ohms (typical at 100kHz)
• Operating Temperature Range: -55°C to +125°C
• Case Code: B
• Termination: SnPb (Tin-Lead)

This capacitor is used in applications requiring stable capacitance in a compact, surface-mount format. The solid tantalum construction ensures excellent long-term stability and reliability, which makes it a good choice for diverse electronic systems. The device is marked with the capacitance and voltage rating for easy identification. It is also designed for reflow soldering per IPC/JEDEC J-STD-020.