T491A105M010AT Kemet Capacitor Polarised (Other) In Stock
The T491A105M010AT is a surface-mount tantalum electrolytic capacitor by Kemet with 1µF capacitance, 10V voltage rating, and MnO2 solid electrolyte in a molded 3216-18 (EIA A case) package. Key specs: 1µF, ±20% tolerance, 10V. Available in stock with worldwide shipping.
- Manufacturer
- Kemet
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- T491A105M010AT Datasheet PDF
- Category
- Capacitor Polarised
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1µF solid tantalum capacitor with MnO2 electrolyte for stable low-ESR performance
- 10V voltage rating in compact EIA case A (3216-18) SMD package
- ±20% capacitance tolerance suitable for decoupling and bypass applications
- Molded construction provides robust mechanical durability in reflow-soldered assemblies
Applications
The T491A105M010AT tantalum capacitor is widely used for power supply decoupling and bulk filtering on 3.3V and 5V logic rails in consumer electronics and embedded systems. Its stable MnO2 solid electrolyte ensures long-term reliability in smartphones, wearables, and IoT devices where compact SMD components and low ESR are required.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for T491A105M010AT:
suggested
Frequently Asked Questions
What capacitance and voltage rating does the T491A105M010AT offer for decoupling designs?
The T491A105M010AT provides 1µF capacitance at a 10V rating with ±20% tolerance, making it effective for decoupling 3.3V and 5V logic power rails in microcontroller and FPGA designs where low ESR tantalum capacitors are preferred over electrolytics.
Which PCB footprint does the T491A105M010AT use and how does it affect layout density?
It uses the EIA case A (3216-18) SMD footprint measuring approximately 3.2mm x 1.6mm, allowing dense PCB placement alongside other 0805 and similar passive components on double-sided reflow assemblies in space-constrained consumer and industrial designs.
When is a solid tantalum MnO2 capacitor like T491A105M010AT preferred over a ceramic alternative?
Solid tantalum MnO2 capacitors like the T491A105M010AT are preferred when stable capacitance across a wide temperature range is critical, since ceramic capacitors can lose up to 80% of their 1µF rating under DC bias, while tantalum capacitors maintain capacitance values within ±20% through typical -55°C to 85°C industrial operating ranges.
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