T491C107K016AT Kemet Capacitor Polarised (Other) In Stock
KEMET T491C107K016AT is a 100µF 16V MnO2 solid tantalum SMD capacitor in a 2917 (C case) molded package with ±10% tolerance. Designed for surface mount applications requiring reliable bulk capacitance. Available in stock worldwide with fast global shipping.
- Manufacturer
- Kemet
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- T491C107K016AT Datasheet PDF
- Category
- Capacitor Polarised
- Price
- From $0.4468(MOQ 10)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 100µF capacitance at 16V rated voltage with ±10% tolerance for decoupling and filtering
- MnO2 solid electrolyte construction delivers low ESR and high ripple current capability
- 2917 C-case molded SMD package enables automated pick-and-place assembly on dense PCBs
- Wide operating temperature range from -55°C to +125°C for industrial and automotive designs
Applications
The T491C107K016AT tantalum SMD capacitor is ideal for power supply input and output filtering in DC-DC converters, voltage regulator modules, and point-of-load converters operating at 12V or below. Its 100µF capacitance at 16V makes it effective in audio signal coupling, motor driver bypass networks, and microcontroller power rail decoupling where compact SMD mounting is required. The MnO2 solid electrolyte provides stable capacitance over the -55°C to +125°C industrial temperature range, making it suitable for automotive infotainment and industrial control electronics.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the T491C107K016AT compare to a 100µF electrolytic capacitor for use in a 12V switching power supply output filter?
The T491C107K016AT tantalum has much lower ESR, typically 0.1Ω to 0.5Ω at 100kHz, versus 0.5Ω to 5Ω for aluminum electrolytic capacitors of the same 100µF 16V rating. This lower ESR reduces output voltage ripple at switching frequencies of 100kHz to 1MHz in buck converter designs, and the solid MnO2 electrolyte eliminates the electrolyte dry-out failure mode that limits electrolytic lifespan above 85°C.
What is the C-case package size of T491C107K016AT and how does it affect board layout density?
The T491C107K016AT uses the EIA 2917 C-case, which measures 6.0mm × 3.2mm × 2.5mm tall, with a standardized land pattern of 7.0mm × 3.5mm on the PCB. Compared to the smaller B-case (3528), the C-case supports higher capacitance values like 100µF but occupies roughly 2.4 times more board area, which is an acceptable trade-off when 100µF at 16V cannot fit in a B-case package with adequate voltage margin.
Is the T491C107K016AT safe to operate continuously at 16V, or should designers apply a voltage derating?
Tantalum capacitors including the T491C107K016AT should be derated to 50% to 75% of rated voltage in production designs, meaning the 16V rating is best used at operating voltages of 8V to 12V for high-reliability applications. At voltages above 75% of rated, the risk of catastrophic failure from dielectric breakdown increases significantly, especially under transient overvoltage conditions in unregulated supply rails. For 12V bus applications, the 16V rating provides approximately 25% derating margin at continuous 12V.
Can T491C107K016AT handle the ripple current in a 100kHz buck converter output stage?
The T491C107K016AT MnO2 solid tantalum capacitor is rated for ripple current typically in the range of 300mA to 500mA RMS at 100kHz depending on temperature, as specified in the KEMET T491 series datasheet derating curves. For a 100kHz buck converter output stage with 50mV peak-to-peak ripple requirement, a single T491C107K016AT at 100µF provides adequate filtering for load currents up to 2A when combined with appropriate output inductance in the 10µH to 47µH range.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $1.4910 | $14.91 |
| 20+ | $0.7795 | $15.59 |
| 500+ | $0.7238 | $361.90 |
| 1000+ | $0.6398 | $639.80 |
| 2000+ | $0.4560 | $911.90 |
| 4000+ | $0.4468 | $1787.20 |
In Stock · 24h Response · Worldwide Shipping
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