F921A335MPA vs T491A105M016AT
| Part Number |
|
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| Category | Tantalum Capacitors | Tantalum Capacitors |
| Manufacturer | KYOCERA AVX | KEMET |
| Description | CAP TANT 3.3UF 20% 10V 0805 | CAP TANT 1UF 20% 16V 1206 |
| Package | -Reel® | -Reel® |
| Series | F92 | T491 |
| Type | Molded | Molded |
| Features | General Purpose | General Purpose |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 0805 (2012 Metric) | 1206 (3216 Metric) |
| Tolerance | ±20% | ±20% |
| Size / Dimension | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.126" L x 0.063" W (3.20mm x 1.60mm) |
| Voltage - Rated | 10 V | 16 V |
| Lead Spacing | - | - |
| Ratings | - | - |
| Height - Seated (Max) | 0.039\" (1.00mm) | 0.071\" (1.80mm) |
| Capacitance | 3.3 µF | 1 µF |
| ESR (Equivalent Series Resistance) | 12Ohm | 10Ohm |
| Lifetime @ Temp. | - | 2000 Hrs @ 125°C |
| Failure Rate | - | - |
| Manufacturer Size Code | P | A |
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1. Disadvantages of tantalum capacitors
The price is relatively high.
If used improperly or the circuit design is defective, it may fail, including explosion.
It is polarity sensitive and can only work in the specified direction.
It may fail easily under certain conditions (such as overvoltage, surge current). -
2. What is the expected life of tantalum capacitors?
Under normal circumstances, it can range from thousands of hours to tens of thousands of hours, depending on the working conditions and manufacturer specifications.
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3. Why do tantalum capacitors explode?
The main reason is that excessive voltage or current shocks cause internal short circuits, which trigger thermal runaway.
Excessive ambient temperature may also exacerbate this situation. -
4. When to use tantalum capacitors?
When miniaturization, low ESR (equivalent series resistance), and stable operation over a wide temperature range are required.
Suitable for audio processing, communication equipment, computer motherboards and other fields.
