T520L337M2R5ATE012 vs T520D477M006ATE025
| Part Number |
|
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| Category | Tantalum - Polymer Capacitors | Tantalum - Polymer Capacitors |
| Manufacturer | KEMET | KEMET |
| Description | CAP TANT POLY 330UF 2.5V 2312 | CAP TANT POLY 470UF 6.3V 2917 |
| Package | Tape & Reel (TR) | Cut Tape (CT) |
| Series | KO-CAP® T520 | KO-CAP® T520 |
| Type | Molded | Molded |
| Features | General Purpose | General Purpose |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 2312 (6032 Metric) | 2917 (7343 Metric) |
| Tolerance | ±20% | ±20% |
| Size / Dimension | 0.236" L x 0.126" W (6.00mm x 3.20mm) | 0.287" L x 0.169" W (7.30mm x 4.30mm) |
| Voltage - Rated | 2.5 V | 6.3 V |
| Lead Spacing | - | - |
| Ratings | - | - |
| Height - Seated (Max) | 0.075\" (1.90mm) | 0.122\" (3.10mm) |
| Capacitance | 330 µF | 470 µF |
| ESR (Equivalent Series Resistance) | 12mOhm @ 100kHz | 25mOhm @ 100kHz |
| Lifetime @ Temp. | 2000 Hrs @ 105°C | 2000 Hrs @ 105°C |
| Manufacturer Size Code | L | 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. How do you know that a capacitor is tantalum polymer?
Appearance markings: Usually the word "Polymer" is marked, along with the capacitance value, operating voltage, and positive and negative pole identification.
Packaging information: Check the
Technical specifications or data sheet on the product packaging. -
3. What is the difference between aluminum and tantalum capacitors?
Material: Aluminum capacitors use aluminum foil as the electrode material; tantalum capacitors use tantalum metal.
Performance: Tantalum capacitors generally have better high temperature performance, higher capacitance density per unit volume, and lower ESR.
Price: In general, tantalum capacitors cost more than aluminum capacitors. -
4. What are the failure modes of tantalum polymer capacitors?
Open circuit: The internal connection is broken.
Short circuit: Caused by internal defects.
Parameter drift: This includes phenomena such as reduced capacity or increased ESR.
Explosion: This may occur in extreme cases, especially when the capacitor is subjected to excessive voltage or current.
