F920J475MPA vs F921C105MPA
| Part Number |
|
|
| Category | Tantalum Capacitors | Tantalum Capacitors |
| Manufacturer | KYOCERA AVX | KYOCERA AVX |
| Description | CAP TANT 4.7UF 20% 6.3V 0805 | CAP TANT 1UF 20% 16V 0805 |
| Package | -Reel® | -Reel® |
| Series | F92 | 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 | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Tolerance | ±20% | ±20% |
| Size / Dimension | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
| Voltage - Rated | 6.3 V | 16 V |
| Lead Spacing | - | - |
| Ratings | - | - |
| Height - Seated (Max) | 0.039\" (1.00mm) | 0.039\" (1.00mm) |
| Capacitance | 4.7 µF | 1 µF |
| ESR (Equivalent Series Resistance) | 6Ohm | 12Ohm |
| Lifetime @ Temp. | - | - |
| Failure Rate | - | - |
| Manufacturer Size Code | P | 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. 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. -
4. Can I use ceramic capacitors instead of tantalum capacitors?
It depends on the specific situation. If the size, ESR requirements are not high and a specific capacitance value is not required, you can consider replacing it.
But be aware that there are differences in physical properties between the two, and direct replacement may affect the working state of the circuit.
