Dielectric | Series | Capacitance | Voltage (VDC) | ESR | MnO2 | T491 Industrial-grade, low-profile T493 COTS mil-aero (CWR11 style) T494 Low ESR industrial T495 Surge-robust low ESR | 0.1µF - 1000µF 0.1µF - 330µF 0.1µF - 1000µF 0.1µF - 1000µF | 2.5 - 50V 4 - 50V 2.5 - 50V 2.5 - 50V | 0.2 - 25Ω 0.1 - 14Ω 0.15 - 20Ω 50 - 1800mΩ |
Polymer | T520 Polymer capacitor T521 High-voltage polymer | 15µF - 68µF 22-330µF | 16 - 35V 16 - 35V | 55 - 125mΩ 25-125mΩ |
New non-magnetic SMT tantalum capacitors: Sampling Now
New non-magnetic versions of popular surface-mount MnO<sub>2</sub> or polymer tantalum capacitors, from Kemet and Charcroft, feature extremely low magnetic permeability, down to 1.00001µ.
The new capacitors increase resolution and reliability for next generation MRI scanners, with magnetic fields up to 3.0T, or other high-resolution scanning technologies.
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The non-magnetic versions increase the reliability of high-resolution medical imaging equipment by minimising overheating due to magnetic losses, and are available with 100% tin (Sn) or tin/lead (SnPb) leads. Non-magnetic versions are specified by adding the appropriate lead-material code to the existing KEMET part numbers.
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