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T491S154K035AT Datasheet(PDF) 6 Page - Kemet Corporation |
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T491S154K035AT Datasheet(HTML) 6 Page - Kemet Corporation |
6 / 100 page TANTALUM CHIP CAPACITORS T498 SERIES - High Temperature (150° C) The T498 Series is a high temperature version of KEMET's solid tantalum chip family that offers optimal performance in applications with operating tempera- tures of up to 150° C. Advancements in materials and testing have allowed for the introduction of this series which delivers a reliability level of 0.5% per 1000 hours at rated voltage at rated temperature. This series is available in five standard EIA case sizes with RoHS- Compliant/100% matte tin finish lead terminations as standard. Other termination options include 90Sn/10Pb finishes and gold for conductive adhesive attachment processes. Capacitance values range from .47µF to 220µF, in voltage ratings from 4 to 50 volts. T510 Series — High Capacitance – Low ESR The ultra-low ESR T510 Series is a breakthrough in solid tantalum capacitor technology. KEMET’s T510 Series offers low ESR in the popular EIA 7343-43 and 7360-38 case sizes. The ultra-low ESR and high ripple current capability make the T510 an ideal choice for SMPS filtering and power decoupling of today’s high speed microprocessors. KEMET has developed an innovative construction platform that incorporates multiple capacitor elements, in parallel, inside a single package. This unique assembly, combined with KEMET’s superior process- ing technology, provides the best combination of high CV, low ESR, and small size in a user friendly, molded, surface mount package. T520 SERIES — Conductive Polymer The Kemet Organic Capacitor (KO-CAP) is a Tantalum capacitor, with a Ta anode and Ta 2O 5 dielectric. However, a conductive, organic, polymer replaces the MnO2 as the cathode plate of the capacitor. This results in very low ESR and improved cap retention at high frequency. The KO-CAP also exhibits a benign failure mode, which eliminates the ignition failures that can occur in standard MnO2 Tantalum types. Note also that KO-CAPs may be operated at voltages up to 90% of rated voltage for part types with rated voltage ≤ 10 volts and up to 80% of rated voltage for part types > 10 volts with equivalent or better reliability than standard tantalums operated at 50% of rated voltage. The T520 series captures the best features of mul- tilayer ceramic caps (low ESR and high frequency cap retention), aluminum electrolytics (benign failure mode), and proven solid tantalum technology (volu- metric efficiency, surface mount capability, and no wearout mechanism). The KO-CAP can reduce component counts, eliminate through-hole assem- bly by replacing cumbersome leaded aluminum capacitors, and offer a more cost effective solution to high-cost high-cap ceramic capacitors. These benefits allow the designer to save both board space and money. See pages 42-52 for complete details. T525 SERIES — High Temperature Conductive Polymer The T525 Series is a version of KEMET’s Tantalum Polymer Capacitor rated up to 125ºC. This part type was introduced as Lead (Pb) Free and offers the same advantages as the T520 KO-CAP. This includes low ESR, high frequency capacitance retention and benign failure mode. T530 SERIES — Conductive Polymer High Capacitance — Ultra Low ESR KEMET is offering a multiple anode tantalum chip capacitor with a polymer material replacing the MnO2 offering non-ignition, self-healing, 125 C performance capability with higher conductivity material that low- ers the ESR. Packaged as multiple anodes to reduce the depth that the signal must penetrate, this parallel arrangement reduces the ESR further still to achieve the highest capacitance and lowest ESR of any other type of SMT capacitor with typical ESR values as low as 5 milliohms. With the reduced ESR, the enhanced capacitance retention in higher frequencies results in the lowest total capacitance solution and provides for the most economical solution in high power applica- tions. PRODUCT DESCRIPTION ©KEMET Electronics Corporation, P.O. Box 5928, Greenville, S.C. 29606, (864) 963-6300 4 |
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