T498A475K010ATE2K9 vs TAJA225K025RNJ
| Part Number |
|
|
| Category | Tantalum Capacitors | Tantalum Capacitors |
| Manufacturer | KEMET | KYOCERA AVX |
| Description | CAP TANT 4.7UF 10% 10V 1206 | CAP TANT 2.2UF 10% 25V 1206 |
| Package | Cut Tape (CT) | -Reel® |
| Series | T498 | TAJ |
| Type | Molded | Molded |
| Features | Automotive | General Purpose |
| Operating Temperature | -55°C ~ 150°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 1206 (3216 Metric) | 1206 (3216 Metric) |
| Tolerance | ±10% | ±10% |
| Size / Dimension | 0.126" L x 0.063" W (3.20mm x 1.60mm) | 0.126" L x 0.063" W (3.20mm x 1.60mm) |
| Voltage - Rated | 10 V | 25 V |
| Lead Spacing | - | - |
| Ratings | AEC-Q200 | - |
| Height - Seated (Max) | 0.063\" (1.60mm) | 0.071\" (1.80mm) |
| Capacitance | 4.7 µF | 2.2 µF |
| ESR (Equivalent Series Resistance) | 2.9Ohm | 7Ohm |
| Lifetime @ Temp. | 2000 Hrs @ 150°C | - |
| Failure Rate | - | - |
| Manufacturer Size Code | A | 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. Why are tantalum capacitors so expensive?
Tantalum ore resources are scarce and the mining cost is high.
The manufacturing process is complex and the yield is relatively low.
It has excellent electrical characteristics, making it indispensable in high-end applications. -
3. Will tantalum capacitors deteriorate?
Yes, tantalum capacitors may gradually lose some of their performance when stored for a long time or in adverse environments.
For example, long-term exposure to high temperature and humidity may cause the electrolyte to evaporate or chemically change. -
4. Is tantalum better than tungsten?
It depends on the application. For capacitors, tantalum is preferred due to its unique properties; while in some other industrial uses, such as making filaments, tungsten is preferred.
