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Shenzhen Dowis Electronics Co.,Ltd
5 Years
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| Brand Name : | Dowis |
| Model Number : | PQ50, PQ Series |
| Certification : | CE, UL, RoHs, ISO9001, 16949 |
| Payment Terms : | T/T, L/C |
| Delivery Time : | 3-4Weeks |
PQ50 DIP Power Inductor Manufacturer Customized DW3158
Toroidal Inductors provide a number of advantages over other
inductor varieties, which include:
Compact Size — The smaller size of Toroidal Inductors allows for
excellent efficiency while maintaining top level performance.Lower
Cost — With smaller sizes that use less raw materials, Toroidal
Inductors are a highly economical choice.
Efficient Design — Inductor designers can achieve shorter length of
turn with smaller-sized Toroidal Inductors using less cooper wire
and with no bobbin as with E-core designs.
1. Drawing (Unit: mm)
2. Process of Winding
| Winding | Barrier Tape | PIN Position | Wire & Description | TS | Method of Winding | Groove position | Insulation Tape | Tube | Method of entering axle | Direction of axle | ||||
| PIN | Top | Start | End | Tape Type | TS | Start | End | |||||||
| N1 | / | / | 2 | 1 | USTC-2UEW-F ∮0.10mm×150P×2P | 8 | Tightly wind (Each round 1 layer, wrap 1 ring of interlayer tape) | / | Kapton: 0.025×19.0mm | 3.1 | apton: 0.025×19.0mm/3Ts | apton: 0.025×19.0mm/3Ts | Barb upturned | Front |
| N2 | / | / | 3 | 4 | USTC-2UEW-F ∮0.10mm×150P×2P | 8 | Tightly wind (Each round 1 layer, wrap 1 ring of interlayer tape) | / | Kapton: 0.025×19.0mm | 3.1 | apton: 0.025×19.0mm/3Ts | apton: 0.025×19.0mm/3Ts | Barb upturned | Front |
3. Electrical Characteristics
| Item | Test terminal | Test condition | Standard requirement | Equipment | |||
| Semi-finished goods | Finished goods | QC Exam | |||||
| Inductance test | 2 | 1 | 1KHz,0.25V | 14.0uH±5% | 14.0uH±6% | 14.0uH±7% | TH1062 or equal |
| 3 | 4 | 14.0uH±5% | 14.0uH±6% | 14.0uH±7% | TH1062 or equal | ||
| Inductance tolerance | |N1-N2| | 1KHz,0.25V | 0.5uH MAX | 0.5uH MAX | 0.5uH MAX | TH1062 or equal | |
| Direct current resistance | 2 | 1 | DC 25℃ | 10.0mΩ max | 10.0mΩ max | 10.0mΩ max | TH2511 or equal |
| Turns test | All windings | 1KHz,0.25V | 8±0.3 Ts | 8±0.3 Ts | 8±0.3 Ts | ||
| High-Voltage Test | Coil to core | AC-50Hz-3mA | 1500±10V,1~2 Sec | 1500±10V,1~2 Sec | 1500V, 3 Sec | CJ2670 or equal | |
| Pin1+2 to Pin3+4 | AC-50Hz-3mA | 1500±10V,1~2 Sec | 1500±10V,1~2 Sec | 1500V, 3 Sec | CJ2670 or equal | ||
Shenzhen Dowis Electronics Co., Ltd. is a professional manufacturer
of electronic transformers, inductors, and filters integrating
R&D, production, and sales. It is a national high-tech
enterprise and has passed the IATF16949:2016 automotive industry
quality management system certification, the product has passed the
"UL""CQC" and other safety certifications. The products are widely
used in communication equipment, new energy vehicles, industrial
control equipment, high-power LED drives and other market areas.
The industry has high visibility. In addition to the domestic
market, but also exported to many countries in Europe and the
United States.
In order to further expand production capacity, it has set up a special test area construction area in zhaoqing YueGui cooperation in 2018 of 14000 square meters of manufacturing center named ZhaoQing Sheng Xiang electronic technology co., Ltd. Its management technical team has rich experience in cooperating with customers from well-known domestic enterprises and overseas. The design of products can fully follow customer’s needs and services with a good quality control system, and it has been recognized by many famous enterprises as the core suppliers. We look forward to cooperating with you.
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