Introduction of TFS Series Miniature, Long Life Low ESR SMD E-CAP
UF Capacitors TFS Series Chip Type, SMD Electrolytic Capacitors features with long life up to 5000hours, Low impedance, Low ESR and small size. This miniature size SMD electrolytic capacitors TFS series are perfect replacement of Panasonic FT series. If you use our TFS miniature series to replace Panasonic FT series, we can help you cost down at least 40%. Our lead time is around 4 weeks.
Features of TFS Series Miniature, Long Life Low ESR SMD E-CAP
● Cross to Panasonic FT Series
● Endurance:105 ℃ 2000h to 5000h
● Miniature size (size smaller than TFZ)
● Extra Low Impedance
● Cost down by around 40%
● RoHS, Compliant,Halogen-free
SPECIFICATIONS of TFS Series Miniature, Long Life Low ESR SMD E-CAP
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Characteristics |
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Temp.Range |
-55 ~ +105°C |
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Voltage Range |
6.3 ~ 50V |
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Capacitance Range |
10 ~ 2200μF |
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Capacitance Tolerance |
±20% at 120Hz, 20°C |
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Leakage Current |
Leakage current £0.01CV or 3μA, whichever is greater (after 2 minutes application of rated voltage at 20°C) |
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C: Nominal capacitance (mF) , V: Rated voltage (V) |
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Dissipation Factor (tan d) |
Measurement frequency : 120Hz, Temperature : 20°C |
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Rated Voltage (V) |
6.3 |
10 |
16 |
25 |
35 |
50 |
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tan δ (max.) |
0.26 |
0.19 |
0.16 |
0.14 |
0.12 |
0.10 |
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Stability at Low Temperature |
Measurement frequency : 120Hz |
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Rated Voltage (V) |
6.3 ~ 16 |
25 ~ 50 |
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Impedance Ratio ZT/Z20 (max.) |
Z(-25°C) / Z(20°C) |
2 |
2 |
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Z(-40°C) / Z(20°C) |
3 |
3 |
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Z(-55°C) / Z(20°C) |
4 |
3 |
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After 5000 hrs. (2000 hrs. for Æ4~Æ6.3´5.8) application of the rated voltage at 105°C, they meet the characteristics listed below. |
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Capacitance Change |
Within ±35% of initial value |
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Dissipation Factor |
300% or less of initial specified value |
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Leakage Current |
initial specified value or less |
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Shelf Life |
After leaving capacitors under no load at 105°C for 1000 hours, they meet the specified value for load life characteristics listed above. |
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Resistance to Soldering Heat |
After reflow soldering and restored at room temperature, they meet the characteristics listed below. |
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Capacitance Change |
Within ±10% of initial value |
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Dissipation Factor |
initial specified value or less |
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Leakage Current |
initial specified value or less |
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Marking |
Black print on the case top. |
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What is Miniature Type
Miniature type" in the context of capacitors generally refers to capacitors that are designed to be small in physical size while still providing reliable performance. These capacitors are engineered to occupy minimal space on a circuit board or within an electronic device.
Miniature capacitors come in various shapes and sizes, often characterized by their compact dimensions compared to standard or larger capacitors. They are particularly valuable in modern electronics where space-saving is critical, especially in devices like mobile phones, laptops, wearables, and other compact electronic gadgets.
Despite their small size, miniature capacitors are designed to meet specific capacitance and voltage requirements, offering a balance between space efficiency and electrical performance. They are often built using advanced materials and manufacturing techniques to ensure reliability and stability in various operating conditions.
The Miniature type capacitors, like the Panasonic FT series you mentioned, are a subset of capacitors designed to fit into tight spaces while still providing the necessary capacitance and performance characteristics required for their intended applications. These capacitors are engineered to offer compactness without compromising on functionality or reliability.
What makes TFS Series to be Miniature
Advanced Materials: we use innovative materials that allow for higher capacitance in smaller volumes. Improved dielectric materials, electrode configurations, and electrolytes contribute to higher capacitance densities, enabling smaller-sized capacitors to store more charge.
Electrode Design: Electrode design plays a crucial role in reducing the size of capacitors. By optimizing the internal structure, manufacturers can increase the effective surface area within a smaller physical space, enhancing capacitance without increasing the overall size.
Manufacturing Techniques: Advancements in manufacturing technology enable precise and intricate construction of capacitor components. Techniques like thin-film deposition, etching, and fine-tuning of layers allow for the creation of smaller, high-performance capacitors.
Component Integration: Integration of components within the capacitor itself is key. By optimizing the arrangement and construction of internal components, manufacturers can achieve higher capacitance values in smaller packages without compromising reliability or performance.
Miniaturized Packaging: Capacitor packaging has evolved to be more compact while maintaining robustness. Smaller casing and enclosure designs help reduce the external dimensions without sacrificing the capacitor's functionality or durability.
What is Extra Low Impedance
“Extra Low Impedance" refers to a characteristic of aluminum electrolytic capacitors, highlighting their ability to offer exceptionally low resistance to the flow of alternating current (AC) within an electrical circuit. This feature is particularly advantageous in scenarios where stable performance at high frequencies is crucial. These capacitors exhibit reduced impedance, allowing them to efficiently handle rapid changes in current demands, ensuring smoother operation and improved filtering of electrical noise. Overall, the "Extra Low Impedance" attribute emphasizes the capacitors' superior ability to maintain optimal performance in circuits with high-frequency requirements.
Withstanding Voltage of Electrolytic Capacitor
The withstand voltage of an electrolytic capacitor is affected by the thickness of the oxide layer. If the voltage is too high, the oxide layer will be penetrated: the electrolyte will have an oxidation reaction with the anode aluminium, and the cathode will have a reduction reaction, which will ultimately lead to the "bursting" of the capacitor. Generally speaking, the withstand voltage of capacitors should be greater than 1.25 times of the highest bus voltage.
Capacity of Aluminium Electrolytic Capacitors
The capacity of an electrolytic capacitor affects the capacitor's ability to provide pulsating current, and is needed in power circuits to meet power output. Due to the large ESR of electrolytic capacitors, it is often necessary to use multiple capacitors in parallel, and the capacity used will be much larger than the capacity needed for the calculation.
Calculation of Temperature and Life of Aluminium Electrolytic Capacitors
The temperature and life of a capacitor have the most direct relationship, because the electrolyte of an aluminium capacitor will gradually evaporate and cause the capacitance to decrease or even fail, and the rate of evaporation accelerates as the temperature rises. The life of an electrolytic capacitor is halved for every 10°C rise in temperature.
Ripple Current, Voltage and ESR of Aluminium Electrolytic Capacitors
Electrolytic capacitor ripple current is based on the capacitor's self-heating and heat dissipation ability to define, the larger the ESR capacitor, the same ripple current under the greater the loss. Loss on the one hand affects the conversion efficiency of the circuit, on the other hand, also increases the loss of capacitance, causing the internal temperature of the capacitor to rise.
UF Capacitors have been working with overseas customers for more than 20 years, all our products meet RoHS REACH requirement. Our products supply to Europe, in Germany, France, UK, we have distributors. Our products can meet overseas customers’ quality requirements.
Our sales team and engineer team will work together on customers inquiries. Engineers’ involve will make sure to quote customer pin to pin alternative parts. Thus we can make all the efforts to help customer to choose the correct components and avoid problem.
We have reliability test lab in our factory, we will test all our components at site to avoid quality issue.During quotation stage, sales will always ask application, and circuit requirement, engineers will evaluate the circuit design and help customer for components selection. This is very helpful especially for new products design.
We also supply free samples and support customer trial order for pilot run.If any quality problem happened,UF Capacitors sales and Engineers will work closely with customer and issue 8D report within 1 week. UF Capacitors will never escape their responsibility for any quality problem. All of our components are new and original.We take responsibility for all the components we sold.
UF Capacitors complies with ISO9001:2015. UF Capacitors Capacitors products are RoHS,
REACH compliant. UF Capacitors has long history with overseas market, all products can
meet European and US standard.
Application Scope of SMD Aluminium Electrolytic Capacitors
UF Capacitors TFS Series SMD aluminium electrolytic capacitors, as a new type of passive components with light weight, thin thickness and small volume, are suitable for all kinds of electronic products with compact structure, small volume and high precision, and their application fields are very broad, especially focusing on communication equipment, computers and peripheral accessories, LCD televisions, portable DVD players, GPS positioning guides, car TV/DVD/RADIO, high-definition TVs ( Including digital set-top box), LCD, ultra-thin DVD, set-top box, security equipment and fire-fighting equipment, mobile power and so on. In addition, there are: financial and commercial ATM machines, tax-control machines, high-grade computers, POS machines, cash registers, mobile scanners, code identifiers, various types of vehicle-mounted electrical appliances, medical equipment, precision instruments, industrial equipment or household appliances control section, electronic toys, electric vehicle control section and so on. In the future, the application of UF Capacitors TFS Series SMD aluminium electrolytic capacitors has a very large scope of development.
Security industry, automotive industry, communications industry, medical equipment industry, industrial equipment, computer accessories, home appliance industry, electronics industry, etc., applicable products are computer master, car, mobile DVD, remote control, multimedia radio, multimedia speakers and so on! The products are applicable to the main version of computer, car, mobile DVD, remote control, multimedia radio, multimedia speakers and so on! UF Capacitors TFS Series SMD aluminium electrolytic capacitors in the electronic circuit is generally summarized as: through the AC, DC resistance.
UF Capacitors TFS Series SMD aluminium electrolytic capacitors are usually used for filtering, bypassing, coupling, decoupling, switching phase and other electrical roles, is an essential part of the electronic circuit.
Development trend of SMD aluminium electrolytic capacitor
As a new type of passive components with high technological content, UF Capacitors TFS Series SMD aluminium electrolytic capacitor is developing at a high speed along with the development of the end products in its application field, especially the development of personal digital handheld devices, which has prompted the usage of UF Capacitors TFS Series SMD aluminium electrolytic capacitor to grow continuously. At the same time, with the miniaturisation and intelligence of various electronic devices, many traditional plug-in electrolytic capacitor applications will be gradually replaced by SMD electrolytic capacitors.
From the point of view of product variety and technical performance, surface mount electrolytic capacitors will move towards higher rated voltage, higher or lower rated current, smaller internal resistance, stronger breaking capacity, recoverable, and multi-line array, with intelligent functions, multi-functional integrated components or modules, etc., to meet the design and production needs of more and newer end products.
The current form of global manufacturing industry, the growing scarcity of human resources has led to a sharp increase in labour costs, the high cost of artificial plug-ins, low efficiency, seriously restricting the automation of factories and the development of large-scale. In addition, people's performance requirements for electronic products more and more high, the volume of the requirements of the smaller and smaller, all kinds of factors to promote the electronic manufacturers to change, the choice of UF Capacitors TFS Series SMD aluminium electrolytic capacitors to replace the traditional plug-in capacitors has become a trend.
Use environments and cleaning conditions
■ This product (capacitor) is intended for standard general-purpose use in electronic equipment, and is not designed for use in the specific environments described below. Using the product in such specific environments or service conditions, therefore, may affect the performance of the product. Check with us about the performance and reliability of the product first before using the product.
(1) Used at a temperature higher than the upper limit category temperature or lower than the lower limit category temperature.
(2) Used in an environment where the product is directly exposed to water, salt water, oil, etc., or in a liquid, such as water,oil, chemicals, and organic solvents.
(3) Used in an outdoor environment where the product is exposed to direct sunlight, ozone, radiation, UV-rays, etc., or in a dusty place.
(4) Used in a wet place (dew concentration on a resistor, water leakage, etc.), a place exposed to sea breeze, or a place filled with a corrosive gas, such as Cl2, H2S, NH3, SO2, or NOX.
(5) Used in an environment filled with a toxic gas (hydrogen sulfide, sulfurous acid, nitrous acid, chlorine and chlorine compound, bromine and bromine compound, ammonia, etc.)
(6) Used in an environment where static electricity and electromagnetic waves are strong.
(7) Located close to heating component or a flammable material, such as a vinyl cable.
(8) Sealed with a resin, etc.
(9) Cleansed with a solvent, water, or a water-soluble cleaner, to remove solder flux after soldering.
(10) Used in an environment where an acidic or alkali atmosphere is present.
(11) Used in an environment where excessive vibration or mechanical shocks exceeding a specified range is applied to the product (even if the applied vibration or mechanical shocks is within the specified range, it may cause the product to resonate, in which a large vibration acceleration may be generated. Make sure to evaluate/check such vibrations or impacts applied to the product in an actual service condition).
(12) Used under a low atmospheric pressure condition or depressurized condition.
■ The capacitor withstands an immersion cleaning process where the board carrying the product is immersed in a cleaning solution of 60 ℃ or lower for less than 5 minutes and withstands an ultrasonic cleaning process as well. However, ensure to thoroughly rinse and dry it. Some cleaning methods erase or blur notes on the capacitor in some cases.
Some types of capacitors are not washable and some cleaning solutions cannot be used to clean a capacitor.
If you are not sure about which type of capacitor is not washable or which cleaning solution cannot be used, please contact us. Solvents you can use to clean the board are as follows.
Pine Alpha ST-100S, Aqua Cleaner 210SEP, Cleanthrough 750H/750L/710M, Sun Elec B-12, Techno Cleaner 219, Cold Cleaner P3-375, DK Be clear CW-5790, Terpene Cleaner EC-7R, Techno Care FRW-17/FRW-1/FRV-1
■ Keep the cleaning solution under strict contamination control (conductivity, pH, specific gravity, water content, etc.). A contaminated cleaning solution will show a high chlorine concentration, thereby corroding the interior of the capacitor in some cases. Keep the flux concentration in the cleaning solution at a 2% mass or less.
■ Unless otherwise specified in the specifications, avoid cleaning the capacitor with a halogen-based solvent, an alkaline solvent, a petroleum-based solvent, xylene, or acetone. Using a halogen-based solvent may result in a case where the solvent infiltrates (leaks) into the capacitor and break-down releasing chlorine, which reacts with aluminum which can corrode the capacitor interior. 1-1-1 trichloroethane is particularly harmful to a capacitor. Never use it to clean a capacitor.
A alkaline solvent may corrode (dissolve) an aluminum case, a petroleum-based solvent and xylene may damage the sealing rubber and accelerate its deterioration, and acetone may erase notes on the capacitor. To protect the global environment, refrain from using an ozone depleting substance as the cleaning solution.
■ Right after the board cleaning, subject the capacitor to a forced drying process so that no cleaning solution remains between the sealing part of the capacitor and the printed board.
Set a drying temperature equal to or lower than the upper limit category temperature.
■ When an adhesive or coating agent is used to fix the capacitor and prevent dampening of the board, specific types of solvents included in some adhesives or coating agents may corrode the capacitor. Select a non-halogen solvent for the material making up the adhesive or coating agent. Do not use a chloroprene-based polymer.
Solidify and dry the adhesive or coating agent sufficiently to prevent its solvent component from remaining on the capacitor. Leave at least 1/3 of the sealing part unsealed on the surface to which the adhesive or coating agent is applied.
■ Do not use the product in a structure sealed by potting or molding. The pressure of a molding resin on a capacitor may deform the capacitor. In addition, the resin covering the capacitor may affect its heat dissipation performance or may leak into the product. These factors lead to the significant degradation of the capacitor’s characteristics and reliability.
There is also a concern that an electrolytic solution permeating the sealing rubber may agglomerate and cause a short circuit.
■ When the capacitor is used in a circuit where an impact voltage is applied or a high voltage is applied in a short period (transient phenomenon) or a high pulse voltage is applied, make sure to use the capacitor at a voltage equal to or lower than its rated voltage.
■ The product contains an electrolytic. Improper use of the capacitor leads not only to the rapid degradation of its characteristics but also to electrolytic leakage. These problems damage the circuit board and may lead to destruction of the entire circuit set.
