T520A476M004ATE070 vs F380J226MSAAH1
| Part Number |
|
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| Category | Tantalum - Polymer Capacitors | Tantalum - Polymer Capacitors |
| Manufacturer | KEMET | KYOCERA AVX |
| Description | CAP TANT POLY 47UF 4V 1206 | CAP TANT POLY 22UF 6.3V 0805 |
| Package | Cut Tape (CT) | Tape & Reel (TR) |
| Series | KO-CAP® T520 | F38 |
| 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 | 1206 (3216 Metric) | 0805 (2012 Metric) |
| Tolerance | ±20% | ±20% |
| Size / Dimension | 0.126" L x 0.063" W (3.20mm x 1.60mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
| Voltage - Rated | 4 V | 6.3 V |
| Lead Spacing | - | - |
| Ratings | - | - |
| Height - Seated (Max) | 0.071\" (1.80mm) | 0.035\" (0.90mm) |
| Capacitance | 47 µF | 22 µF |
| ESR (Equivalent Series Resistance) | 70mOhm @ 100kHz | 150mOhm @ 100kHz |
| Lifetime @ Temp. | 2000 Hrs @ 105°C | 1000 Hrs @ 85°C |
| Manufacturer Size Code | A | S |
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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. 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. -
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. 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.
