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Gallery View: Chip, solid types resurgent in aluminum electrolytic capacitor R&D
Global SourcesUpdated on 2023/12/01
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Aluminum electrolytic capacitors manufacturers in China invest in product development to realize smaller and alternative kinds.
High capacitance and reliability remain priorities in the production of conventional aluminum electrolytic capacitors in China, while makers keep up with miniaturization and upgrades. More companies are looking to introduce additional SMD or chip models, especially in anticipation of an increase in demand.
A number of suppliers are also pursuing the development of solid variants, which are known for having no leakage, and low ESR under high temperature, frequency and voltage, besides a long operating life. One companies that has started offering such types is Zhuhai Headcon, whose VPZ series has a capacitance ranging from 10 to 3,900µF, and a life span of 2,000 hours at 105 C. The SMD unit comes in 5x6mm, 6.3x6mm, 6.3x9mm, 8x9mm, 8x11.8mm and 10x12.7mm variants.
Mainstream DIP and SMD aluminum electrolytic capacitors come in versions with 0.1 to 10,000µF capacitance range, ±5, ±10 and ±20 percent tolerance, 6.3 to 400V rated voltage and -55 to 105 C operating temperature. These have a life span of 1,000, 2,000 or 3,000 hours at 105 C, and meet CE, RoHS and UL requirements. The key applications are home appliances, computers and peripherals, mobile electronics, communications and industrial equipment, and in the automotive, aerospace and military fields.
Materials and components such as aluminum foil, cases, covers, electrolytic paper and electrolytes are all sourced locally, with makers turning to foreign providers only as required. Input costs did not fluctuate much in the past six months, but the price of aluminum electrolytic capacitors dropped significantly due to the COVID-19 pandemic. Prices are expected to stabilize in the next six months.
The products in this gallery have been handpicked by our China-based market analyst for representing current trends in aluminum electrolytic capacitors from China makers.
47µF rated capacitance
Dongguan Xuansn Electronic Tech Co. Ltd's aluminum electrolytic capacitor, CD288H47M1VD6H11 model, has 47µF rated capacitance and 0.9ohm impedance at 100kHz, 20 C. Its ripple current at 85 C is 137mA rms at 120Hz or 273mA rms at 100kHz.
The 35V-rated unit has a load life span of 5,000 hours at 120Hz, 105 C. It comes in 6.3x11mm, 5x11mm and 6.3x7mm.
An order of at least 1,000 units is for delivery within 3 days.
470µF rated capacitance
This 8x12mm aluminum electrolytic capacitor from Dongguan Xuansn Electronic Tech Co. Ltd, CD288H471M1AD8H12 model, has a rated capacitance of 470µF and impedance of 0.33ohm at 100kHz, 20 C. Rated at 10V, the unit has at 85 C 479mA rms ripple current at 120Hz or 718mA rms at 100kHz. It supports a life span of 4,000 hours at 120Hz, 105 C.
The minimum order is 1,000 units. Delivery is within 3 days.
3,300µF rated capacitance
From Full River Cap. Co. Ltd, the model MEA Series aluminum electrolytic capacitor has 3,300µF rated capacitance and ±20 percent tolerance. It has an operating temperature of -40 to 85 C or -25 to 85 C.
The maker requires a minimum order of 1,000 units. Delivery takes 7 days.
330µF capacitance
Model Snap-In-50 Series-1-1 aluminum electrolytic capacitor from Full River Cap. Co. Ltd has 330µF capacitance and 6.3 to 100VDC or 160 to 450VDC rated voltage. It has an operating temperature of -40 to 105 C or -25 to 105 C and a life span of 2,000 hours at 105 C.
The 35x35mm unit has a negotiable minimum order. Delivery lead time is 7 days.
0.1 to 22,000µF capacitance
For communications equipment and switching power supplies, the model SPKE01-Tape aluminum electrolytic capacitor from Spark International Electronic Co. Ltd has 0.1 to 22,000µF capacitance and ±20 percent tolerance at 120Hz, 20 C. The rated voltage is 6.3 to 450VDC. The unit has a load life span of 2,000 hours at 105 C.
The 20,000-unit minimum order has a delivery lead time of 10 days.
25 to 500µF capacitance
The SPKE-18 model offered by Spark International Electronic Co. Ltd is an aluminum electrolytic capacitor with 25 to 500µF capacitance and 0 to 20 percent tolerance at 120Hz, 20 C. The rated voltage is 110 to 300VAC and the dielectric withstand voltage between the terminals and holding clamp 1,500Vrms.
An order of at least 1,000 units has a delivery lead time of 10 days.
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