Tantalum capacitors
Our official sales partner: Hongda Capacitors
Hongda Capacitors is one of the leading manufacturers of chip capacitors with decades of experience and state-of-the-art production technology. The company is ISO9001:2015 and IATF16949 certified and stands for the highest quality standards in the automotive, electronics and industrial sectors.
As an official distribution partner of Hongda Capacitors, we offer our customers high-performance capacitors that are characterized by reliability, durability and innovative technology.
As an official distribution partner of Hongda Capacitors, we offer our customers high-performance capacitors that are characterized by reliability, durability and innovative technology.
Product range of our tantalum capacitors
Our tantalum capacitors offer a broad selection for a wide range of applications - from radial to SMT and hybrid solutions. Whether for compact designs, high-frequency circuits or high-performance industrial electronics - we have the right solution for you.
The following tables provide you with detailed specifications for our products. For further technical information, you can also download the corresponding data sheets.
The following tables provide you with detailed specifications for our products. For further technical information, you can also download the corresponding data sheets.
Radial tantalum capacitors
CA42
| Nominal Capacitance | C (μF) | 0.68~1.0, 1.5～6.8, 10～68, 100~330, 470~680, ＞680 |
| MAX DF(%) | -55℃ | 6-16 |
| MAX DF(%) | 25℃ | 4-14 |
| MAX DF(%) | 85℃/125℃ | 6-16 |
| MAX DCL（μA） | 85℃ | 8 I |
| MAX DCL（μA） | 125℃ | 10 I |
SMT tantalum capacitors
CA45
| Nominal Capacitance | μF | 0,15-2200 |
| Rated Voltage | V | 2,5-50 |
| Rated Temperature | ℃ | 85 |
| Category Voltage | V | 1,7-33 |
| Category Temperature | ℃ | 125 |
| Max. DCL at +25℃ | μA | 0,5-75 |
| Max. DF at +25℃ 100Hz | % | 4-26 |
| Max. ESR +25℃ | Ω | 0,2-15 |
| Ripple Current (A) | +25℃ | 0,07-1,12 |
| 100KHz Max. | +85℃ | 0,06-1,01 |
| +125℃ | 0,03-0,45 |
CA45L
| Nominal Capacitance | μF | 0,68-1000 |
| Rated Voltage | V | 4-50 |
| Rated Temperature | ℃ | 85 |
| Category Temperature | ℃ | 125 |
| Category Voltage | V | 2,7-33 |
| Max. DCL at +25℃ | μA | 0,5-75,2 |
| Max. DF at +25℃ 100Hz | % | 4-16 |
| Max. ESR +25℃Ω | mΩ | 100-6000 |
| Ripple Current (A) 100KHz Max. | +25℃ | 0,1-1,12, 0,79 1 |
| +85℃ | 0,06-0,67 |
| +125℃ | 0,04-0,45 |
CA55
| Nominal Capacitance | μF | 10-1000 |
| Rated Voltage | V | 2,5-10 |
| Max. DCL at +25℃ | μA | 6-428 |
| Max. DF at +25℃ 100Hz | % | 6-10 |
| Max. ESR +25℃ | mΩ | 22-650 |
| Ripple Current (mA) 100KHz Max. | +25℃ | 439-3795 |
| Max. Working Temperature | +125℃ | 175-1518 |
| MSL | ℃ | 125 |
| +85℃ | 395-3415 |
CA97
| Nominal Capacitance | uF | 22-1000 |
| Rated Voltage at +85°C | V | 10-63 |
| Rated Voltage at +125°C | V | 7-42 |
| Max. DCL at +25°C | uA | 11-100 |
| Max. DF at +25°C 120Hz | % | 6-20 |
| Max. ESR at +25°C100kHz | mΩ | 60-250 |
| Ripple Current (A) 100kHz Max. | A | 1-2,3 |
QCA45
| Case Code | A, B, C, D, E, V, H |
| Nominal Capacitance | μF | 0,68-680 |
| Rated Voltage | V | 4-50 |
| Max DCL at +25℃ | μA | 0,5-47 |
| Max DF at +25℃ 100Hz | % | 4-30 |
| Max ESR +25℃Ω | Ω | 0,3-12 |
| Ripple Current (A) 100KHz Max | +25℃ | 0,07-1,12 |
| Category Temperature | ℃ | 125 |
| MSL | 1-3 |
| +85℃ | 0,04-0,67 |
| +125℃ | 0,03-0,45 |
Hybrid tantalum capacitors
HTHC
| Rated Voltage(V) | 10-125 |
| Category Voltage(V) | 6-75 |
| Surge Voltage(V) | 11-137,5 |
| Nominal Capacitance ( F) | 1100-50000 |
| tg (%) | 35-180 |
| ESR (Ω) 1kHz | 0,05-0,2 |
| Leakage Current max(A) | 25°C | 150-200 |
| Leakage Current max(A) | 85°C 120°C | 2100-3200 |
| Impedance max (Ω) 100Hz | 55°C | 10-24 |
| Capacitance Variation(%) | 85°C | 50-160 |
| Max Weight (g) | 68-125 |
HTHC1
| Rated Voltage(V) | 10-125 |
| Category Voltage(V) | 6-75 |
| Surge Voltage(V) | 11-138 |
| Nominal Capacitan ce (μF) | 160-8000 |
| tg σ (%) | 20-80 |
| ESR (Ω) 1kHz | 0,3-0,6 |
| Leakage Current max( A) | 25°C | 25-155 |
| Leakage Current max( A) | 85°C 120°C | 150-930 |
| Impedance max (Ω) 100Hz | 55°C | 8-192 |
| Capacitance Variation(%) | 85°C | 50-160 |
| Dimension D X H (mm) | 22×8 |
| Max Weight (g) | 28 |
HTHC1W
| Rated Voltage (V) | 10-125 |
| Category Voltage (V) | 6-75 |
| Surge Voltage (V) | 11-275 |
| Nominal Capacitance (F) | 160-8000 |
| tg (%) | 20-80 |
| ESR (Ω) 1kHz | 0,3-0,6 |
| Leakage Current max. | 25°C | 25-155 |
| Impedance max. (Ω) 100Hz | 55°C | 8-19,2 |
| Dimension DxH (mm) | 22x8 |
| Max. Weight (g) | 28 |
| 85°C 120°C | 150-930 |
| 85°C | 50-160 |
HTHC2
| Rated Voltage (V) | 10-100 |
| Category Voltage (V) | 6-95 |
| Surge Voltage (V) | 11-385 |
| Nominal Capacitance (F) | 2400-150000 |
| tg (%) | 25°C | 35-180 |
| ESR (Ω) 1kHz | 85°C 120°C | 0,03-0,35 |
| Leakage Current max. | 55°C | 300-500 |
| Impedance max. (Ω) 100Hz | 85°C | 1-18 |
| Dimension DxH (mm) | 35.5×12, 35.5×16, 35.5× 10, 35.5× 12, 35.5× 16 |
| Max. Weight (g) | 62-110 |
| 55°C | 1800-3000 |
HTHC2F
| Rated Voltage (V) | 10-125 |
| Category Voltage (V) | 6-75 |
| Surge Voltage (V) | 11-138 |
| Nominal Capacitance (F) | 1100-100000 |
| tg (%) | 30-180 |
| ESR (Ω) 1kHz | 0,04-0,1 |
| Leakage Current max. | 25°C | 300-500 |
| Impedance max. (Ω) 100Hz | -55°C | 1-2,4 |
| Max. Weight (g) | 84-119 |
| 85°C 120°C | 1800-3000 |
| 85°C | 50-160 |
HTHC2FB
| Rated Voltage (V) | 10-80 |
| Category Voltage (V) | 6-95 |
| Surge Voltage (V) | 11-385 |
| Nominal Capacitance (F) | 5600-150000 |
| tg (%) | 40-180 |
| ESR (Ω) 1kHz | 0,03-0,1 |
| Leakage Current max. | 25°C | 300-500 |
| Impedance max. (Ω) 100Hz | 55°C | 1-1,6 |
| Dimension DxH (mm) | 36×12, 36×16, 36×10 |
| Max. Weight (g) | 76-118 |
| 85°C 120°C | 1800-3000 |
| 85°C | 90-160 |
HTHC2W
| Rated Voltage (V) | 10-125 |
| Category Voltage (V) | 6-95 |
| Surge Voltage (V) | 11-385 |
| Nominal Capacitance (F) | 1100-150000 |
| tg (%) | 30-180 |
| ESR (Ω) 1kHz | 0,03-0,35 |
| Leakage Current max. | 25°C | 300-500 |
| Impedance max. (Ω) 100Hz | 55°C | 1-18 |
| Dimension DxH (mm) | 35.5×12, 35.5×16, 35.5× 10, 35.5× 12, 35.5× 16, 35.5× 19 |
| Weight (g) | 62-145 |
| 85°C 120°C | 1800-3000 |
| 85°C | 45-160 |
HTHC2W3
| Rated Voltage (V) | 50-80 |
| Category Voltage (V) | 30-45 |
| Surge Voltage (V) | 55-88 |
| Nominal Capacitance (F) | 3000-24000 |
| tg (%) | 20-70 |
| ESR (Ω) 1kHz | 0,04-0,06 |
| Leakage Current max. | 25°C | 200-500 |
| Impedance max. (Ω) 100Hz | 55°C | 1,2-1,6 |
| Dimension DxH (mm) | 35.5×16, 35.5×10, 35.5×12 |
| Height of screw h (mm) | 8±0.5, 6-0.5 |
| Negative pole height h1 | 6±0.5, 12min, 14±0.5 |
| Max. Weight (g) | 65-110 |
| 85°C 120°C | 1200-3000 |
| 85°C | 30-135 |
HTHCF
| Rated Voltage (V) | 10-50 |
| Category Voltage (V) | 6-95 |
| Surge Voltage (V) | 11-55 |
| Nominal Capacitance (F) | 8000-230000 |
| tg (%) | 65-190 |
| ESR (Ω) 1kHz | 0,03-0,07 |
| Leakage Current max. | 25°C | 150-400 |
| Impedance max. (Ω) 100Hz | 55°C | 1-1,2 |
| Dimension DxH (mm) | 35.5×8, 35.5×12, 35.5×16, 35.5×20, 35.5×24, 35.5× 12 |
| Weight (g) | 67-180 |
| 85°C 120°C | 900-2400 |
| 85°C | 120-160 |
HTHC3
| Rated Voltage (V) | 10-125 |
| Nominal Capacitance (F) | 2200-230000 |
| tg (%) | 25°C | 35-190 |
| ESR (Ω) 1kHz | 25°C | 0,03-0,05 |
| Leakage Current max. | 25°C | 300-500 |
| Impedance max. (Ω) 100Hz | -55°C | 1-2,5 |
| Dimension DxH (mm) | 35.5 x 20, 35.5 x 24, 35.5 x 18.4 |
| Max. Weight (g) | 115-165 |
| 85°C 120°C | 1800-3000 |
High-quality tantalum capacitors for industrial electronics
Buy tantalum capacitors
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Areas of application for tantalum capacitors in electronics
Tantalum capacitors are used wherever compact, reliable and durable components are required. Due to their high capacitance density and low ESR, they are particularly in demand in industrial electronics. Here they stabilize power supplies, reduce interference signals and ensure efficient filtering in control units and power electronics.
Tantalum capacitors are also indispensable in the automotive industry. Automotive-grade models, such as the QCA45 series, offer high temperature and vibration resistance, making them ideal for control units, sensors and infotainment systems.
In telecommunications and medical technology, they are used in portable devices and high-precision measuring systems. Polymer tantalum capacitors in particular, such as the CA55 series, impress with their stable performance at high frequencies.
Through its cooperation with Hongda Capacitors, Rotima AG offers a wide range of high-quality tantalum capacitors - from radial to SMT and hybrid solutions - for a wide variety of high-end applications.
Tantalum capacitors are also indispensable in the automotive industry. Automotive-grade models, such as the QCA45 series, offer high temperature and vibration resistance, making them ideal for control units, sensors and infotainment systems.
In telecommunications and medical technology, they are used in portable devices and high-precision measuring systems. Polymer tantalum capacitors in particular, such as the CA55 series, impress with their stable performance at high frequencies.
Through its cooperation with Hongda Capacitors, Rotima AG offers a wide range of high-quality tantalum capacitors - from radial to SMT and hybrid solutions - for a wide variety of high-end applications.
Do you have any questions about our offer?
Tantalum capacitors
SMT tantalum capacitors
Tantalum capacitors
CA42
Tantalum capacitors
CA45
Tantalum capacitors
CA45L
Tantalum capacitors
CA55
Tantalum capacitors
QCA45
Tantalum capacitors
CA97
Hybrid tantalum capacitors
Tantalum capacitors
HTHC
Tantalum capacitors
HTHC1
Tantalum capacitors
HTHC1W
Tantalum capacitors
HTHC2
Tantalum capacitors
HTHC2F
Tantalum capacitors
HTHC2FB
Tantalum capacitors
HTHC2W
Tantalum capacitors
HTHC2W3
Tantalum capacitors
HTHCF
Tantalum capacitors
HTHC3
Tantalum capacitors - Reliable energy storage for modern electronics
Tantalum capacitors are compact, high-performance components that are used in numerous electronic applications. They are characterized by their high capacitance, small size and exceptional reliability. Thanks to their stable electrical properties, they are preferred in areas such as industrial electronics, medical technology, telecommunications and automotive technology.
As an official distributor of Hongda Capacitors, Rotima AG offers a wide range of high-quality tantalum capacitors - from radial variants to SMT and hybrid solutions. Whether for compact PCB designs or demanding high-end applications, our components ensure a stable and long-lasting power supply in your electronics. Discover our range and find the right solution for your project!
As an official distributor of Hongda Capacitors, Rotima AG offers a wide range of high-quality tantalum capacitors - from radial variants to SMT and hybrid solutions. Whether for compact PCB designs or demanding high-end applications, our components ensure a stable and long-lasting power supply in your electronics. Discover our range and find the right solution for your project!
Do you have any questions about our offer?
Tantalum capacitors
Our range of other capacitors:
Electrolytic capacitors
Electrolytic capacitors are special capacitors with high capacitance that use an electrolyte as a conductive medium. They store electrical energy and are used in power supplies, audio and high-frequency circuits. Due to their polarity, they can only be used in direct current circuits. Common types are aluminum, tantalum and niobium electrolytic capacitors.
Film capacitors
Film capacitors are electrical components for energy storage, consisting of two metal foils or metallized plastic films as electrodes, separated by a dielectric plastic film. They are characterized by high dielectric strength, low losses and a long service life and are used in applications such as power supplies, motor drives and high-frequency technology.
Ceramic capacitors
Ceramic capacitors are electrical components for energy storage and signal filtering. They consist of a ceramic dielectric and metal plates. Their advantages: high stability, low losses, fast charging and discharging times. They are used in electronics, high-frequency technology and power applications - from smartphones to industrial control systems.
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Tantalum capacitors
Structure and function of tantalum capacitors
Tantalum capacitors consist of an anode block made of sintered tantalum, which is coated with a thin layer of tantalum pentoxide as a dielectric. This structure enables a high capacitance density in a compact design. Depending on the design, the cathode consists of a solid electrolyte (manganese oxide or polymer) or a liquid electrolyte.
Due to their low ESR (equivalent series resistance) and high temperature resistance, tantalum capacitors are ideal for applications that require a stable voltage supply. In industrial and automotive electronics, they ensure reliable filtering and smoothing of voltages, making them an indispensable component in modern circuits.
Due to their low ESR (equivalent series resistance) and high temperature resistance, tantalum capacitors are ideal for applications that require a stable voltage supply. In industrial and automotive electronics, they ensure reliable filtering and smoothing of voltages, making them an indispensable component in modern circuits.
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Further information on tantalum capacitors
In our FAQ section, we answer the most important questions about the structure, functionality, advantages and possible applications of tantalum capacitors. Whether you are looking for the best solution for your project or want to find out more about the technical properties - here you will find compact and comprehensible answers to the most frequently asked questions.
What advantages do tantalum capacitors offer over other types of capacitors?
Tantalum capacitors offer a high capacitance density in a compact design, which makes them ideal for applications with limited space. Compared to aluminum electrolytic capacitors, they are characterized by a longer service life, lower leakage currents and higher temperature resistance.
Their low ESR (equivalent series resistance) ensures stable voltage filtering and low energy losses, which is particularly advantageous in high-frequency and power applications. In addition, polymer tantalum capacitors offer even better electrical performance and are less susceptible to capacitance loss over time. These properties make tantalum capacitors the preferred choice in the automotive, industrial and telecommunications sectors where reliable and long-lasting voltage stabilization is required. Despite their higher price compared to ceramic or aluminum capacitors, they offer superior performance for demanding electronic designs.
Their low ESR (equivalent series resistance) ensures stable voltage filtering and low energy losses, which is particularly advantageous in high-frequency and power applications. In addition, polymer tantalum capacitors offer even better electrical performance and are less susceptible to capacitance loss over time. These properties make tantalum capacitors the preferred choice in the automotive, industrial and telecommunications sectors where reliable and long-lasting voltage stabilization is required. Despite their higher price compared to ceramic or aluminum capacitors, they offer superior performance for demanding electronic designs.
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Where are tantalum capacitors used in the automotive industry?
Tantalum capacitors are an essential component of modern automotive electronics. They are used in control units for engine and driver assistance systems, sensors and infotainment systems. They are used particularly in safety-critical areas such as ABS control units or airbag systems due to their high reliability. Automotive-grade tantalum capacitors, such as the QCA45 series, are specially designed for extreme environmental conditions and can withstand high temperatures and strong vibrations. Their ability to stabilize voltage fluctuations improves the efficiency of vehicle electrical systems and battery management systems in electric vehicles.
Due to their low ESR, they enable faster and more efficient signal processing, which is essential for modern assistance systems. Tantalum capacitors therefore play a key role in the further development of electric and autonomous vehicles by ensuring a stable power supply and keeping the electronics efficient and durable.
Due to their low ESR, they enable faster and more efficient signal processing, which is essential for modern assistance systems. Tantalum capacitors therefore play a key role in the further development of electric and autonomous vehicles by ensuring a stable power supply and keeping the electronics efficient and durable.
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Why are tantalum capacitors suitable for high-frequency applications?
Tantalum capacitors offer extremely low ESR and excellent electrical stability, making them ideal for high frequency and power applications. Polymer tantalum capacitors in particular, such as the CA55 series, minimize energy losses and provide efficient smoothing of voltage spikes. Their ability to handle high currents with minimal delays is crucial for high-frequency circuits in telecommunications, signal processing and power electronics. In mobile phone base stations, satellite communications and wireless networks, they stabilize signals and reduce electromagnetic interference.
Unlike ceramic capacitors, which are prone to microphonic effects, tantalum capacitors offer stable capacitance independent of mechanical vibrations. Their reliable behavior under load therefore makes them an indispensable component in high-performance communication systems, medical devices and high-speed data transmission systems.
Unlike ceramic capacitors, which are prone to microphonic effects, tantalum capacitors offer stable capacitance independent of mechanical vibrations. Their reliable behavior under load therefore makes them an indispensable component in high-performance communication systems, medical devices and high-speed data transmission systems.
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Which tantalum capacitors are suitable for compact electronic devices?
SMT (surface-mount technology) tantalum capacitors are ideal for compact designs such as wearables, smartphones and portable medical devices. Models such as the CA45 series offer high capacitance with minimal size, making them the perfect choice for space-saving PCB layouts. Ultra-low ESR tantalum capacitors in particular (e.g. CA97 series) offer improved energy efficiency and faster charge and discharge cycles, which is essential in battery-powered devices.
Their stable performance under varying load conditions ensures reliable power supply and signal stability in wearable sensors, medical implants or wireless modules. Thanks to their high temperature resistance, they are also suitable for extreme operating conditions. These properties make them an optimal choice for developers who require durable and powerful components for miniaturized high-tech products.
Their stable performance under varying load conditions ensures reliable power supply and signal stability in wearable sensors, medical implants or wireless modules. Thanks to their high temperature resistance, they are also suitable for extreme operating conditions. These properties make them an optimal choice for developers who require durable and powerful components for miniaturized high-tech products.
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What role do hybrid tantalum capacitors play in power electronics?
Hybrid tantalum capacitors combine the advantages of tantalum capacitors with the properties of aluminum or polymer technologies, making them particularly suitable for high-performance applications. They offer higher dielectric strength and improved current carrying capacity, making them ideal for DC/DC converters, inverters and power supplies in industrial and automotive applications.
Thanks to their high pulse load capacity, they can efficiently absorb sudden voltage peaks and thus ensure a stable power supply in critical systems. They are used particularly in electric vehicles, renewable energy systems and high-current applications due to their excellent thermal and electrical stability.
Hybrid tantalum capacitors, such as the models offered by Hongda Capacitors, are therefore a forward-looking solution for power electronics with the highest demands on reliability and efficiency.
Thanks to their high pulse load capacity, they can efficiently absorb sudden voltage peaks and thus ensure a stable power supply in critical systems. They are used particularly in electric vehicles, renewable energy systems and high-current applications due to their excellent thermal and electrical stability.
Hybrid tantalum capacitors, such as the models offered by Hongda Capacitors, are therefore a forward-looking solution for power electronics with the highest demands on reliability and efficiency.
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