T540B107M003DH8710 vs T540B226M010DH8710
| Part Number |
|
|
| Category | Tantalum - Polymer Capacitors | Tantalum - Polymer Capacitors |
| Manufacturer | KEMET | KEMET |
| Description | CAP TANT POLY 100UF 3V 1411 | CAP TANT POLY 22UF 10V 1411 |
| 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 | 1411 (3528 Metric) | 1411 (3528 Metric) |
| 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 | 3 V | 10 V |
| Lead Spacing | - | - |
| Ratings | COTS | COTS |
| Height - Seated (Max) | 0.083\" (2.10mm) | 0.083\" (2.10mm) |
| Capacitance | 100 µF | 22 µF |
| ESR (Equivalent Series Resistance) | 80mOhm @ 100kHz | 80mOhm @ 100kHz |
| Lifetime @ Temp. | 2000 Hrs @ 125°C | 2000 Hrs @ 125°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. 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 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 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.

