T540D157K006CH8505 vs T540D337K006CH8510
| Part Number |
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| Category | Tantalum - Polymer Capacitors | Tantalum - Polymer Capacitors |
| Manufacturer | KEMET | KEMET |
| Description | CAP TANT POLY 150UF 6.3V 2917 | CAP TANT POLY 330UF 6.3V 2917 |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | KO-CAP® T540 | KO-CAP® T540 |
| Type | Molded | Molded |
| Features | High Reliability | High Reliability |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 2917 (7343 Metric) | 2917 (7343 Metric) |
| Tolerance | ±10% | ±10% |
| Size / Dimension | 0.287" L x 0.169" W (7.30mm x 4.30mm) | 0.287" L x 0.169" W (7.30mm x 4.30mm) |
| Voltage - Rated | 6.3 V | 6.3 V |
| Lead Spacing | - | - |
| Ratings | COTS | COTS |
| Height - Seated (Max) | 0.122\" (3.10mm) | 0.122\" (3.10mm) |
| Capacitance | 150 µF | 330 µF |
| ESR (Equivalent Series Resistance) | 40mOhm @ 100kHz | 40mOhm @ 100kHz |
| Lifetime @ Temp. | 2000 Hrs @ 125°C | 2000 Hrs @ 125°C |
| Manufacturer Size Code | D | D |
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1. What are the disadvantages of tantalum polymer capacitors?
Higher cost: They are more expensive to produce than traditional aluminum electrolytic capacitors.
Lower withstand voltage: They are usually rated for lower working voltage than aluminum electrolytic capacitors of the same size.
Temperature sensitivity: They may not perform well in extreme temperatures, especially low temperatures.
Risk of physical damage: They may be damaged if subjected to mechanical stress or excessive current surges. -
2. What is the difference between regular capacitors and tantalum polymer capacitors?
Construction: Regular capacitors can be non-polar (such as ceramic capacitors) or polar (such as aluminum electrolytic capacitors). Tantalum polymer capacitors are always polar and use a solid conductive polymer as the electrolyte.
Performance: Tantalum polymer capacitors generally have lower ESR, better frequency characteristics, and higher stability.
Applications: Due to their high performance characteristics, tantalum polymer capacitors are often used in electronic devices with high performance requirements. -
3. Which side of a tantalum polymer capacitor is the positive pole?
Usually, there is a clear mark on the tantalum polymer capacitor to indicate the positive pole, such as a long bar mark or a "+" symbol.
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4. What is the difference between wet and dry tantalum capacitors?
Wet: An early type of tantalum capacitor that contains a liquid electrolyte, which is less common now.
Dry: A modern version that uses a solid electrolyte (such as manganese dioxide or conductive polymer) for better stability and safety.
