Introduction of T491A475M010AT
Ⅰ. Product overview of T491A475M010AT
The T491A475M010AT is a molded solid tantalum capacitor from KEMET's T491 series. It features a 4.7 μF capacitance, 10 V rated voltage, ±20% tolerance, and a compact A-case surface-mount package. As a polarized tantalum capacitor, it is designed for general-purpose applications such as power supply filtering, decoupling, signal coupling, and energy storage in electronic circuits.
Ⅱ. T491A475M010AT Core parameter
Category: Capacitors Tantalum Capacitors
Operating Temperature: -55°C ~ 125°C
Mfr: KEMET
Lifetime @ Temp.: 2000 Hrs @ 125°C
Series: T491
Mounting Type: Surface Mount
Packaging: Tape & Reel (TR) Cut Tape (CT) Digi-Reel®
Package / Case: 1206 (3216 Metric)
Part Status: Active
Size / Dimension: 0.126" L x 0.063" W (3.20mm x 1.60mm)
Capacitance: 4.7 µF
Height - Seated (Max): 0.071" (1.80mm)
Tolerance: ±20%
Manufacturer Size Code: A
Voltage - Rated: 10 V
Features: General Purpose
Type: Molded
Base Product Number: T491A
ESR (Equivalent Series Resistance): 5Ohm
Ⅲ. T491A475M010AT Main characteristics
Solid Tantalum Construction: The T491A475M010AT uses a solid tantalum capacitor construction with MnO₂ dielectric/cathode technology. Compared with many general-purpose capacitor technologies, tantalum capacitors offer a useful combination of capacitance, compact size, and stable characteristics.
4.7 μF Capacitance: The capacitor provides a 4.7 μF nominal capacitance, making it suitable for common filtering, bypassing, decoupling, and energy-storage functions in electronic circuits.
10 V Rated Voltage: The T491A475M010AT has a 10 V DC rated voltage, meaning the capacitor is designed to operate within its specified voltage rating under appropriate conditions.
±20% Capacitance Tolerance: The device has a ±20% capacitance tolerance, which is common for general-purpose tantalum capacitors and provides a practical balance between performance and cost.
Compact A-Case Package: The component uses the A case / 1206-size class package, corresponding to approximately 3.2 × 1.6 mm according to the listed product specifications. This compact surface-mount format helps save PCB space.
Polarized Capacitor: The T491A475M010AT is a polarized capacitor, meaning its positive and negative terminals must be correctly oriented when installed.
Ⅳ. T491A475M010AT Application field
Power Supply Filtering: The T491A475M010AT can be used in power supply circuits to help smooth voltage variations and reduce unwanted noise on power rails.
Power Rail Decoupling: The capacitor can be placed near IC power pins to provide local decoupling and help reduce the effect of transient current demand.
Signal Processing Circuits: Tantalum capacitors can be used in certain signal-processing circuits for coupling, filtering, and DC blocking functions.
Industrial Control Equipment: The capacitor can be used on industrial control PCBs for power filtering, local decoupling, and signal-conditioning circuits.
Communication Equipment: The component can be used in communication equipment for power filtering and decoupling around communication ICs and interface circuits.
Ⅴ. Summary
The T491A475M010AT is a 4.7 μF, 10 V, ±20% molded solid tantalum capacitor from KEMET's T491 series. With its compact A-case surface-mount package and general-purpose design, it is suitable for power filtering, decoupling, signal processing, industrial control, communication equipment, and other electronic applications.