F931E684MAA vs F921A225MPA
| Part Number |
|
|
| Category | Tantalum Capacitors | Tantalum Capacitors |
| Manufacturer | KYOCERA AVX | KYOCERA AVX |
| Description | CAP TANT 0.68UF 20% 25V 1206 | CAP TANT 2.2UF 20% 10V 0805 |
| Package | -Reel® | -Reel® |
| Series | F93 | F92 |
| 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 | 1206 (3216 Metric) | 0805 (2012 Metric) |
| Tolerance | ±20% | ±20% |
| Size / Dimension | 0.126" L x 0.063" W (3.20mm x 1.60mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
| Voltage - Rated | 25 V | 10 V |
| Lead Spacing | - | - |
| Ratings | - | - |
| Height - Seated (Max) | 0.071\" (1.80mm) | 0.039\" (1.00mm) |
| Capacitance | 0.68 µF | 2.2 µF |
| ESR (Equivalent Series Resistance) | 7.6Ohm @ 100kHz | 12Ohm |
| Lifetime @ Temp. | 2000 Hrs @ 125°C | - |
| Failure Rate | - | - |
| Manufacturer Size Code | A | P |
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1. 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. -
2. 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. -
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. What causes tantalum capacitors to burn out?
Common causes include applying a voltage exceeding the maximum allowable value, excessive current, high ambient temperature, and manufacturing defects.
