T540D157K006CH8505 vs T540D227K006CH8505
| 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 220UF 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 | 220 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 tantalum polymer capacitors?
Tantalum polymer capacitors are electrolytic capacitors that use metallic tantalum as the anode material and a conductive polymer (such as polypyrrole or polythiophene) as the cathode material. This design provides better performance than traditional aluminum electrolytic capacitors and solid tantalum capacitors, especially in high-frequency applications.
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2. Will tantalum polymer capacitors deteriorate?
All types of capacitors will experience a certain degree of aging over time. For tantalum polymer capacitors, although the aging rate is relatively slow, they may still experience problems such as capacity loss after long-term use. In addition, improper storage conditions or excessive operating temperatures can also accelerate this process.
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3. What special precautions must be taken when installing tantalum polymer capacitors?
Ensure correct polarity connection: Incorrect polarity will cause immediate damage.
Pay attention to the operating temperature range: Avoid exceeding the recommended operating temperature range.
Protection during welding: Avoid overheating to protect components from damage.
ESD protection: Take appropriate anti-static measures during handling. -
4. What causes tantalum polymer capacitors to fail?
Overvoltage operation: Exceeding the rated voltage may cause internal breakdown.
Reverse bias: Connecting the positive and negative terminals in reverse may cause immediate damage.
Overheating: Prolonged exposure to high temperature environments can affect performance and even cause failure.
Mechanical damage: Damage may also be caused by external impact or pressure.
