T491A105M020AT Kemet Capacitor Polarised (Other) In Stock
Kemet T491A105M020AT is a 1 µF tantalum electrolytic capacitor rated at 20 V in a molded SMD 1206 case A package. It uses MnO2 solid electrolyte for reliable polarized energy storage. Competitively priced and available from stock with worldwide shipping.
- Manufacturer
- Kemet
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- T491A105M020AT Datasheet PDF
- Category
- Capacitor Polarised
- Price
- From $0.1007(MOQ 100)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of T491A105M020AT?
- 1 µF / 20 V solid MnO2 tantalum capacitor with low ESR for stable power rail decoupling
- Compact molded SMD case A (1206) footprint optimized for automated pick-and-place assembly
- Wide operating temperature range suitable for industrial and automotive-grade power supply designs
What is T491A105M020AT used for?
The T491A105M020AT is commonly used in bulk decoupling and energy-storage roles on 12 V and 15 V power supply rails where a 20 V, 1 µF tantalum provides low ESR and stable capacitance over temperature. It fits point-of-load converter output filtering in telecommunications equipment and industrial control boards. The molded SMD package simplifies high-volume reflow assembly while the MnO2 electrolyte delivers long operational lifetime.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the T491A105M020AT datasheet?
T491A105M020AT Datasheet DownloadOfficial datasheet from Kemet
What are equivalent replacements for T491A105M020AT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the capacitance and voltage rating of the T491A105M020AT?
The T491A105M020AT is a 1 µF tantalum capacitor rated at 20 V DC working voltage with ±20% capacitance tolerance. Its solid MnO2 electrolyte delivers low equivalent series resistance, making it effective for decoupling on 12 V and 15 V power rails in both consumer and industrial electronics.
Which power supply filtering applications benefit most from the T491A105M020AT?
Point-of-load converters, voltage regulator output filters, and input bypass networks on 5 V to 15 V rails benefit from this 1 µF / 20 V MnO2 tantalum. The low ESR characteristic reduces voltage ripple effectively, and the case A SMD footprint fits densely populated PCBs in telecommunications, industrial automation, and embedded computing modules.
How does the T491A105M020AT compare to a MLCC of the same capacitance at 20 V?
Unlike X5R or X7R MLCCs, which can lose up to 80% capacitance under DC bias at 20 V with a 1 µF rating, the T491A105M020AT maintains its rated 1 µF across the full operating voltage range. The tantalum construction also provides tighter capacitance stability over temperature from -55°C to +125°C, an advantage for precision timing and filtering circuits.
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Why Buy from FindMyChip
About Kemet
Kemet is a leading electronic component manufacturer. FindMyChip sources Kemet ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.2213 | $22.13 |
| 500+ | $0.1484 | $74.20 |
| 1000+ | $0.1288 | $128.80 |
| 2000+ | $0.1078 | $215.60 |
| 4000+ | $0.1060 | $424.00 |
| 10000+ | $0.1007 | $1007.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
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