TQB19

Short Description:

◆Miniaturized (L3.5×W2.8×H1.9)

◆Bottom-side terminals, low ESL

◆Low ESR, high ripple current

◆RoHS compliant (2011/65/EU)


Product Detail

Product Tags

Main technical parameters

ItemSpecifications
Operating Temperature Range-55~+105°C
Rated Working Voltage16V
Capacity Range1.5~60µF 120Hz/20°C
Allowable Capacity Deviation±20% (120Hz/20°C)
Dissipation Factor (Tan δ)For standard products: Below the value in the specification sheet, 120Hz/20°C
Leakage CurrentFor standard products: Below the value in the specification sheet; measured after charging for 5 minutes at rated voltage, 20°C
Equivalent Series Resistance (ESR)For standard products: Below the value in the specification sheet, 100kHz/20°C
Surge Voltage (V)1.5 times the rated voltage
DurabilityAfter applying rated working voltage for 2000 hours at rated temperature, then leaving it at 20°C for 16 hours, the product shall meet:
- Capacitance Change Rate: ±20% of the initial value
- Dissipation Factor (Tan δ): ≤150% of the initial specification value
- Leakage Current: ≤Initial specification value
High Temperature & High HumidityAfter being stored for 500 hours under 60°C, 90~98%RH (no voltage applied), then leaving it at 20°C for 16 hours, the product shall meet:
- Capacitance Change Rate: +40%~-20% of the initial value
- Dissipation Factor (Tan δ): ≤150% of the initial specification value
- Leakage Current: ≤300% of the initial specification value
tqb19

Rated Ripple Current Temperature Coefficient

Temperature-55°C < T ≤ 45°C45°C < T ≤ 85°C85°C < T ≤ 105°C
Coefficient for Rated 105°C Products10.70.25

Note: The surface temperature of the capacitor shall not exceed the maximum operating temperature of the product

Rated Ripple Current Frequency Correction Factor

Frequency (Hz)120Hz1kHz10kHz100~300kHz
Correction Factor0.10.450.51

TQB19

Standard Product List

Rated Voltage (V)Rated Temperature (°C)Category Voltage (V)Category Temperature (°C)Nominal Capacity (μF)Product Dimensions (mm) L.C (μA, 5min) (Tanδ) 120Hz(ESR) (mΩ 100KHz)Rated Ripple Current (mA r.m.s) 45℃ 100KHz
Length (L)Width (W)Height (H)
16105°C16105°C473.52.81.975.20.1701100
20105°C20105°C273.52.81.9540.190950
25105°C25105°C273.52.81.967.50.1100900
35105°C35105°C153.52.81.952.50.1150800
50105°C50105°C3.93.52.81.919.50.1200750
65105°C63105°C2.73.52.81.9170.1200750
75105°C75105°C1.83.52.81.913.50.1300600
100105°C100105°C1.53.52.81.9150.1300600

Product Details:

TQB19 Conductive Polymer Tantalum Capacitors: A Miniaturized Solution for Stable Power in High-Density Electronic Devices

As modern electronic devices trend towards higher performance and smaller size, the selection of each electronic component is crucial to the reliability and efficiency of the entire system. YMIN's TQB19 series of conductive polymer tantalum capacitors, with their superior performance and compact design, are becoming the ideal choice for engineers to achieve efficient power management in space-constrained applications.

Technological Innovation Breaking Size Limitations

The most striking feature of the TQB19 series is its miniaturized design—a compact size of only 3.5mm × 2.8mm × 1.9mm. This breakthrough in size not only solves the pain points of high-density circuit board layout but also provides unprecedented design flexibility for portable devices, wearable technologies, and micro-sensor networks.

Within such a small package, the TQB19 achieves a capacitance range of 1.5~60μF, covering rated operating voltages from 16V to 100V. This wide voltage and capacitance range allows designers to meet the diverse needs of various circuit nodes within the same product family, greatly simplifying material management processes.

Superior Electrical Performance Meets Demanding Application Needs

The TQB19 features a bottom-terminal design, significantly reducing its equivalent series inductance (ESL) and enabling superior performance in high-frequency applications. At 100kHz, the series exhibits extremely low ESR, effectively reducing power loss and improving overall system efficiency.

High-frequency, low-impedance characteristics make the TQB19 particularly suitable for handling large ripple currents. At 45°C and 100kHz, its ripple current handling capability reaches 600mA to 1100mA (depending on voltage specifications), far exceeding comparable products and providing reliable protection for applications such as switching power supplies and DC-DC converters.

The product operates over a temperature range of -55°C to +105°C, suitable for stable operation in various harsh environments. Whether facing the high temperatures of automotive electronics or the low temperatures of industrial control, the TQB19 maintains stable electrical characteristics.

Strict Quality Control Ensures Long-Term Reliability

The TQB19 series undergoes rigorous quality verification, including 2000 hours of durability testing and 500 hours of high-temperature and high-humidity testing. Test results show that even under extreme conditions, the product's capacitance change rate, loss factor, and leakage current remain within specified ranges, ensuring long-term reliability.

The product complies with RoHS directive (2011/65/EU) environmental requirements, meeting the stringent environmental standards for modern electronic products. Its surge voltage withstand capability reaches 1.5 times the rated voltage, further enhancing its adaptability to voltage fluctuation environments.

Wide Range of Applications

Automotive Electronics: In the wave of automotive electrification, the TQB19, with its high reliability and wide temperature range, is an ideal choice for key components such as ECUs, ADAS systems, and infotainment systems. Its shock resistance and miniaturization perfectly meet the dual requirements of automotive electronics for space and reliability.

AI Data Servers: Facing the increasing computing power demands of AI servers, the TQB19 provides stable decoupling and filtering functions for GPU and CPU power supply circuits, ensuring a clean power supply for computing chips. Its low ESR characteristics help reduce power loss, which is of great significance for energy-saving designs in high-density servers.

Robotics Applications: In industrial and service robots, the TQB19 provides reliable power support for motion control systems, sensor modules, and communication interfaces. Its compact size adapts to the trend of highly integrated designs within robots.

New Energy Sector: In new energy applications such as photovoltaic inverters and energy storage systems, the TQB19 performs filtering and voltage regulation functions in key circuits, helping to improve energy conversion efficiency.

5G Communication Equipment: Facing the high-frequency characteristics of 5G base stations and high-frequency communication equipment, the TQB19's low ESL design makes it a preferred component for RF circuits and power management circuits.

Technological Advantages Transformed into Practical Value

The TQB19's technical parameters are not only reflected in the datasheet but also translate into significant advantages in practical applications. Its low impedance characteristics reduce power supply ripple and improve signal integrity; its high ripple current capability ensures voltage stability under load fluctuations; and its long lifespan design reduces equipment maintenance needs and lowers the total cost of ownership.

For design engineers, the standardized size and reliable performance of the TQB19 simplify circuit design processes and shorten product development cycles. Its consistent performance also helps improve the consistency of mass-produced products, reducing quality fluctuations caused by component variations.

Conclusion

In today's increasingly sophisticated and high-performance electronic devices, YMIN's TQB19 conductive polymer tantalum capacitors, through their miniaturized design, superior electrical performance, and reliable quality control, provide powerful power management solutions for electronic devices across various industries. Whether it's AI servers pursuing ultimate performance, automotive electronics with stringent reliability requirements, or space-constrained portable devices, the TQB19 can play a crucial role, providing solid support for the innovation and development of electronic devices.

Choosing the TQB19 is not just choosing an electronic component, but also choosing a commitment to performance, reliability, and efficiency. In this era of rapid technological advancement, the TQB19 will continue to accompany engineers in pushing design limits and creating even more outstanding electronic products.


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