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Gallery View: Aluminum electrolytic capacitors R&D steer toward small size, high voltage & capacity
Global SourcesUpdated on 2023/12/01
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Typical China-made chip aluminum electrolytic capacitors come in as small as 0405 variants. Other materials and techniques are being considered to boost voltage and capacity.
For consumer electronics, industrial and special applications, mainstream DIP and SMD aluminum electrolytic capacitors in China have 6.3 to 400V rated voltage, 0.1 to 10,000µF capacitance range, ±20 percent tolerance and -55 to 105 C operating temperature. These come with a life span of 1,000, 2,000 or 3,000 hours at 105 C and meet CE, RoHS and UL requirements. Variants mainly used in mobile electronics, home appliances and computers account for more than 40 percent of total shipments. The other applications include industrial and communications equipment, wind turbines, automotive, aerospace and military.
Despite competition from film kinds, efforts in the line continue, focusing on trends for small size, and high voltage and capacity. This is seen to persist until 2020. In the chip types, suppliers emphasize those in 0405, 0504 and 0605 while sustaining production of larger sizes such as 0607, 0806, 0810, 1010, 1213, 1616 and 1621. Some are developing new materials and techniques for high-voltage and -capacity models. Nantong Sunion uses an in-house prepared electrolyte to ensure low current leakage and long operating life.
The main materials and components include aluminum foil and cases, covers, electrolytic paper and electrolytes. All are sourced locally, with makers turning to foreign companies only as required. The cost of inputs remained stable in the past year. It is expected to stay at current levels for the rest of 2019 and keep product prices steady.
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.
0.1 to 1,000µF, 6.3 to 50VDC
The RoHS-compliant FZ Series aluminum electrolytic capacitor from Dongguan HongFarad Electronic Co. Ltd has 0.1 to 1,000µF capacitance range and ±20 percent tolerance at 120Hz, 20 C. In 6.3 to 50VDC-rated variants, the unit has a life span of 2,000 hrs at 105 C. It comes in 4x5.4mm, 5x5.4mm, 6.3x5.4mm, 6.3x7.7mm, 8x1mm and 10x10mm.
An order of at least 1,000 units is for delivery within 25 days.
330 to 8,200µF, 6.3 to 16V
With 6.3 to 16V rated voltage, the model SJ-1 aluminum electrolytic capacitor from Dongguan HongFarad Electronic Co. Ltd offers 330 to 8,200µF. The RoHS-compliant unit has ±20 percent tolerance and a life span of 2,000 hrs at 105 C. It operates in -40 to 105 C.
The 10,000-unit minimum order has a delivery lead time of 25 days.
22 to 220µF, 330 to 450VDC, for cameras & flashes
For camera flashes and digital cameras, the RF Series aluminum electrolytic capacitor from Shenzhen Yuscon Electronics Co. Ltd has a capacitance range of 22 to 220µF and rated voltage of 330 to 450VDC. It can be recharged 1.5 million to 3 million times every 5 seconds.
The maker requires a minimum order of 3,000 units. Delivery is within 7 days.
10 to 330µF, ±20 percent tolerance, 160 to 250VDC
From Shenzhen Yuscon Electronics Co. Ltd, this aluminum electrolytic capacitor, BP101M100K25G-04 model, has 10 to 330µF nominal capacitance range and ±20 percent tolerance. The RoHS-compliant unit has 160 to 250VDC rated voltage and a life span of 1,000 hrs at 105 C. It operates in -40 to 105 C.
An order of at least 3,000 units is delivered within 10 days.
4.7 to 1,500µF, 6.3 to 100VDC
This SMD aluminum electrolytic capacitor from Spark International Electronic Co. Ltd, SPKE-10 model, has 4.7 to 1,500µF capacitance range and ±20 percent tolerance at 120Hz, 20 C. The 6.3 to 100VDC-rated unit lasts 2,000 hours at 105 C. It comes in 6.3x7.7mm, 8x6.2mm, 8x10.2mm and 10x10.2mm.
The minimum order is 20,000 units. Delivery is within 10 days.
0.1 to 22,000µF, 6.3 to 450V
Spark International Electronic Co. Ltd’s model SPKE-02 aluminum electrolytic capacitor has a rated voltage of 6.3 to 450V, capacitance range of 0.1 to 22,000µF and tolerance of ±20 percent at 120Hz, 20 C. It supports 2,000 hours at 105 C and suits communications equipment and switching power supplies. The operate temperature is -40 to 105 C.
The 20,000-unit minimum order has a delivery lead time of 10 days.
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