TQD42

Short Description:

◆Slim profile (L7.3×W4.3×H4.2)
◆Bottom terminals, low ESL
◆High voltage withstand (100V max.)
◆RoHS compliant (2011/65/EU)


Product Detail

Product Tags

Main technical parameters:

ItemSpecification
Operating Temperature Range-55~+105℃
Rated Working Voltage16~100V
Capacity Range12~470μF 120Hz/20℃
Allowable Capacity Deviation±20%(120Hz/20℃)
Dissipation Factor (tanδ)The value is lower than the value in the standard product list at 120Hz/20℃.
Leakage CurrentThe value is lower than that in the standard product list. Charge for 5 minutes at the rated voltage at 20°C.
Equivalent series resistance (ESR)The value is lower than the value in the standard product list at 100kHz/20℃.
Surge voltage (V)1.15 times the rated voltage
DurabilityUnder rated temperature, apply rated working voltage for 2000 hours, then store at 20℃ for 16 hours; the product shall meet:
- Capacitance Change Rate≤±20% of the initial value
- Dissipation Factor (tanδ)≤150% of the initial specification value
- Leakage Current≤Initial specification value
High Temperature & HumidityStore at 60℃, 90%-95% humidity for 500 hours without applying voltage, then store at 20℃ for 16 hours; the product shall meet:
- Capacitance Change Rate-40%~+20%
- Dissipation Factor (tanδ)≤150% of the initial specification value
- Leakage Current≤300% of the initial specification value
tqd42设计英文版(1)

Rated Ripple Current Temperature Coefficient:

Temperature-55℃ < T ≤ 45℃45℃ < T ≤ 85℃85℃ < T ≤ 105℃
Rated 105°C Coefficient10.70.25

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

Rated Ripple Current Frequency Correction Factor:

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

Standard Product List:

Rated Voltage (V)Rated Temperature (℃)Category Voltage (V)Category Temperature (℃)Nominal Capacity (μF)Product Dimensions (mm)Leakage Current (μA, 5min)Tanδ (120Hz)ESR (mΩ 100KHz)Rated Ripple Current (mA r.m.s) at 45℃ 100KHz
LWH
16105℃16105℃4707.34.34.27520.1702400
35105℃35105℃1007.34.34.23500.11002000
50105℃50105℃477.34.34.22350.11002000
105℃50105℃687.34.34.23400.11002000
63105℃63105℃227.34.34.2138.60.11002000
105℃63105℃337.34.34.22080.11002000
100105℃100105℃127.34.34.2120.11002000

Product Details

Meticulous Craftsmanship, Empowering the Future: YMIN TQD42 Series Ultra-Miniature High-Performance Aluminum Electrolytic Capacitors

In today's rapidly evolving electronics industry, miniaturization, efficiency, and reliability have become irreversible trends. From fingertip-sized wearable devices to high-power-density 5G communication base stations, from sophisticated automotive electronics to stable industrial control systems, every inch of space is precious, and every performance leap is crucial.

Against this backdrop, Shanghai YMIN Electronics (YMIN), leveraging its deep technological foundation and forward-looking market insights, has launched the TQD42 series of ultra-miniature, low-ESL, high-voltage aluminum electrolytic capacitors. With their superior performance and compact design, they provide engineers with an ideal solution to the dual challenges of space and performance.

The most striking feature of the TQD42 series is its extremely compact size: 7.3mm (L) × 4.3mm (W) × 4.2mm (H). This "Slim profile" design makes it an excellent choice for applications with stringent PCB space requirements.

If the compact size is the "external beauty" of the TQD42, then its outstanding electrical performance is its "internal soul." This series doesn't sacrifice performance for size; rather, it achieves breakthroughs in several key performance indicators while maintaining miniaturization.

Low ESL (Equivalent Series Inductance), Meeting High-Frequency Requirements

The bottom terminal structure naturally reduces the current loop path, thus significantly reducing the equivalent series inductance (ESL). In high-speed digital circuits and high-frequency switching power supplies (such as DC-DC converters), low ESL means that capacitors can filter out high-frequency noise and ripple current more quickly and effectively, ensuring the purity and stability of the power output. This provides "quieter" power to core chips such as CPUs, GPUs, and ASICs, ensuring their high-speed and stable operation.

High Voltage and Wide Capacitance Range, Providing Flexible Choices

The TQD42 series covers a wide rated operating voltage range from 16V to 100V, with capacitance ranging from 12μF to 470μF. This broad specification allows it to adapt to a variety of applications, from low-voltage digital logic circuits to relatively high-voltage industrial power supplies. Whether handling a 12V system bus, 48V communication power supplies, or intermediate circuits in new energy vehicle electronics, engineers can find the right model.

Stable Temperature Characteristics and Long Lifespan Design

The product operates within a temperature range of -55℃ to +105℃ and can continue operating at its rated temperature of 105℃. Its "durability" testing shows that after 2000 hours of aging at rated voltage and temperature, the capacitor's capacitance change rate, loss tangent (tanδ), and leakage current remain within stringent specifications. This ensures the product's reliability in high-temperature environments (such as automotive engine compartments and outdoor communication equipment) and significantly reduces the risk of system failure due to capacitor failure.

Powerful Ripple Current Handling Capability

One of the main roles of capacitors in switching power supplies is handling ripple current. The TQD42 series offers clearly defined rated ripple current values ​​(e.g., 2000mA r.m.s for the 100V/12μF model at 45℃/100kHz) and is equipped with a temperature coefficient and frequency correction factor. This allows engineers to accurately calculate the usable ripple current of the capacitor based on the actual operating frequency and ambient temperature, ensuring it operates within a safety margin, extending its lifespan, and improving the efficiency and reliability of the entire power supply system.

In-depth Analysis of Practical Application Scenarios

These characteristics of the TQD42 series make it shine in numerous fields:

• Communication Equipment: In power modules of 5G base stations, network switches, and routers, it is used for input/output filtering. Its low ESL and high-frequency characteristics effectively suppress high-frequency switching noise, ensuring the integrity of signal transmission.

• Automotive Electronics: In power circuits of ADAS (Advanced Driver Assistance Systems), in-vehicle infotainment systems, and ECU (Electronic Control Units), its wide temperature range and long lifespan characteristics can withstand the harsh operating environments of automotive electronics, ensuring driving safety.

• Industrial Control and Automation: In PLCs (Programmable Logic Controllers), servo drives, and industrial robots, it provides stable and clean power to sensitive control circuits, resisting various electromagnetic interferences in industrial environments and ensuring the precision and continuity of production processes.

• Consumer Electronics: In high-end graphics card VRM modules, ultra-thin laptop motherboards, and power adapters for smart home devices, miniaturized design and high reliability are key to ensuring product performance and user experience.

Conclusion

The YMIN TQD42 series of ultra-miniature aluminum electrolytic capacitors is a perfect fusion of engineering ingenuity and market demand. With its distinctive features of "small size, low ESL, high withstand voltage, and high reliability," it perfectly solves the core pain points in modern electronic device design. Choosing the TQD42 is not just choosing an excellent electronic component, but also choosing a reliable partner that helps your products stand out in fierce market competition and win the future. On the road to a smarter, more efficient, and more interconnected electronic world, the YMIN TQD42 series capacitors have become an indispensable key tool in the hands of engineers.


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