TR3A105K020C3000 Vishay Capacitor Polarised (Capacitor Moulded Polarised) In Stock
Vishay TR3A105K020C3000 is a 1 µF, 20 V solid tantalum SMD capacitor in a moulded A-case package (1.6 mm height) with 3000 mΩ ESR, offering stable, polarized capacitance for decoupling and filtering in compact space-constrained PCB designs across industrial and consumer electronics.
- Manufacturer
- Vishay
- Package
- Capacitor Moulded Polarised
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- TR3A105K020C3000 Datasheet PDF
- Category
- Capacitor Polarised
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1 µF capacitance at 20 V rating in a compact moulded A-case SMD package (1.6 mm height)
- Solid tantalum dielectric provides stable capacitance with low drift over temperature and time
- 3000 mΩ ESR measured at 100 kHz for consistent ripple current performance in switching applications
- RoHS and REACH compliant, lead-free (JESD-609 e3) for international regulatory compliance
Applications
The TR3A105K020C3000 is used for decoupling, bypass, and filtering functions in handheld devices, portable medical equipment, and industrial sensor nodes where a compact 1 µF tantalum capacitor rated at 20 V is required. Its moulded A-case package and solid tantalum construction ensure long-term capacitance stability in space-constrained PCB designs where reliability under vibration or thermal cycling is critical.
Specifications
| Reach Compliance Code | Compliant |
| Factory Lead Time | 13Weeks |
| YTEOL | 10 |
| Additional Feature | ESR AND RIPPLE CURRENT IS MEASURED AT 100KHZ |
| Capacitance | 1 µF |
| Capacitor Type | TANTALUM CAPACITOR |
| Dielectric Material | TANTALUM (DRY/SOLID) |
| ESR | 3000mΩ |
| Height | 1.6mm |
| JESD-609 Code | e3 |
| Leakage Current | 0.0005mA |
| Mounting Feature | SURFACE MOUNT |
| Negative Tolerance | 10% |
| Package Shape | RECTANGULAR PACKAGE |
| Package Style | SMT |
| Packing Method | TR, EMBOSSED PLASTIC, 7 INCH |
| Polarity | POLARIZED |
| Positive Tolerance | 10% |
| Rated (DC) Voltage (URdc) | 20V |
| Ripple Current | 64mA |
| Size Code | 1206 |
| Surface Mount | YES |
| Tan Delta | 0.04 |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Shape | J BEND |
| Package | Capacitor Moulded Polarised |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8532.21.00.50 |
| Country of Origin | Israel, Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What capacitance, voltage rating, and ESR does the TR3A105K020C3000 provide?
The TR3A105K020C3000 offers 1 µF capacitance rated at 20 V with an ESR of 3000 mΩ measured at 100 kHz. While the higher ESR makes it less suitable for very high-frequency filtering above 1 MHz, it is adequate for bulk decoupling and low-frequency bypass in microcontroller power rails and analog supply filtering at 100 kHz switching frequencies.
How does the solid tantalum construction of the TR3A105K020C3000 compare to standard MLCC capacitors for decoupling use?
Solid tantalum capacitors like the TR3A105K020C3000 maintain stable capacitance with no significant DC voltage derating, unlike MLCC capacitors that can lose 50% or more of their rated 1 µF capacitance at 20 V due to the piezoelectric effect. Tantalum also offers predictable aging characteristics, making it a reliable choice for precision analog decoupling where capacitance stability over 1 µF across the full operating voltage is required.
For a 3.3 V microcontroller bypass circuit, is the 20 V rating of the TR3A105K020C3000 excessive or beneficial?
The 20 V rating provides roughly a 6× derating margin when used on a 3.3 V rail, which is actually beneficial for tantalum capacitors. Industry practice recommends derating tantalum capacitors to 50% or less of their rated voltage to prevent failure modes; at 3.3 V on a 20 V-rated part, the 1 µF tantalum remains well within safe operating limits, ensuring high long-term reliability in microcontroller supply bypass and decoupling applications.
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