TCQB336M006R0070 vs TCJB684M063R0300
| Part Number |
|
|
| Category | Tantalum - Polymer Capacitors | Tantalum - Polymer Capacitors |
| Manufacturer | KYOCERA AVX | KYOCERA AVX |
| Description | CAP TANT POLY 33UF 6.3V 1411 | CAP TANT POLY 0.68UF 63V 1411 |
| Package | -Reel® | Tape & Reel (TR) |
| Series | TCQ | TCJ |
| Type | Molded | Molded |
| Features | Automotive | General Purpose |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 105°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 1411 (3528 Metric), 1210 | 1411 (3528 Metric), 1210 |
| Tolerance | ±20% | ±20% |
| Size / Dimension | 0.138" L x 0.110" W (3.50mm x 2.80mm) | 0.138" L x 0.110" W (3.50mm x 2.80mm) |
| Voltage - Rated | 6.3 V | 63 V |
| Lead Spacing | - | - |
| Ratings | AEC-Q200 | - |
| Height - Seated (Max) | 0.083\" (2.10mm) | 0.083\" (2.10mm) |
| Capacitance | 33 µF | 0.68 µF |
| ESR (Equivalent Series Resistance) | 70mOhm @ 100kHz | 300mOhm @ 100kHz |
| Lifetime @ Temp. | 1000 Hrs @ 125°C | 2000 Hrs @ 105°C |
| Manufacturer Size Code | B | B |

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1. What is special about tantalum polymer capacitors?
Low ESR (equivalent series resistance): They are suitable for use in circuits that require fast response.
Long life: There is no liquid electrolyte, so it will not dry out and has a longer service life.
High reliability: They perform well in long-term operation.
Self-healing ability: When a local short circuit occurs, the polymer can reform the insulating layer to prevent further damage.
Volumetric efficiency: They have a high capacitance density and can provide large capacitance values in a smaller package. -
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. What are the alternatives to tantalum polymer capacitors?
Aluminum electrolytic capacitors: For applications that do not require extremely high stability and low ESR.
Solid aluminum capacitors: Provide performance between traditional aluminum electrolytic capacitors and tantalum polymer capacitors.
Other solid capacitors: Choose the right alternative based on your specific needs. -
4. 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.

