T491A155K035AT vs T489B106M006ATE3K0
| Part Number |
|
|
| Category | Tantalum Capacitors | Tantalum Capacitors |
| Manufacturer | KEMET | KEMET |
| Description | CAP TANT 1.5UF 10% 35V 1206 | CAP TANT 10UF 20% 6.3V 1411 |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | T491 | T489 |
| 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) | 1411 (3528 Metric) |
| Tolerance | ±10% | ±20% |
| Size / Dimension | 0.126" L x 0.063" W (3.20mm x 1.60mm) | 0.138" L x 0.110" W (3.50mm x 2.80mm) |
| Voltage - Rated | 35 V | 6.3 V |
| Lead Spacing | - | - |
| Ratings | - | - |
| Height - Seated (Max) | 0.071\" (1.80mm) | 0.083\" (2.10mm) |
| Capacitance | 1.5 µF | 10 µF |
| ESR (Equivalent Series Resistance) | 7Ohm | 3Ohm |
| Lifetime @ Temp. | 2000 Hrs @ 125°C | 2000 Hrs @ 85°C |
| Failure Rate | - | - |
| Manufacturer Size Code | A | B |
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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. 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. -
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.
