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EC28 High Frequency Transfomer Manufacture Customized DW4351

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Shenzhen Dowis Electronics Co.,Ltd
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EC28 High Frequency Transfomer Manufacture Customized DW4351

Brand Name : Dowis

Model Number : EC28

Certification : CE, UL, RoHs, ISO9001, 16949

Place of Origin : CN

MOQ : 1000pcs

Payment Terms : T/T, L/C

Delivery Time : 3-4Weeks

Packaging Details : Carton Box

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EC28 Miniature Current Transformer Manufacturer Customized DW4351

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.

1. CONFIGURATION & DIMENSIONS (Unit: mm)
EC28 High Frequency Transfomer Manufacture Customized DW4351


2. SCHEMATIC:

EC28 High Frequency Transfomer Manufacture Customized DW4351


3.PROCESS OF WINDING:

Winding Retaining Wall Pin position Wire & Description Winding Method Groove Position Insulating Tape ( light yellow) Tube Method of entering Axle Direction of entering Axle
Pin1 Pin12 Start End TS Start End Tape type TS Start End
N1A 3mm×4Ts 3mm×4Ts -6 Reserved wire 2UEWTwisted wire∮0.10mm×20 bar 30 Tightly wind 2 layers, Add 10.5mm barrier tape between layers. Between Pin5 & Pin 6 Pin6 16.5mm 3 21L×15mm 21L×15mm Pin1-6 towards right front
The reserved length of N1B is not cut off after winding Foot bottom
N2 / / -11 -10 Copper wire 0.1X15mm 3 Share one piece of copper foil, wound in the middle Between Pin10 & Pin11 Between Pin9 & Pin10 16.5mm 3 19L×10m /
N3 / / / -12 Copper wire 0.1X15mm 3 / Between Pin11 & Pin 12 15L×10mm 19L×10mm
N1B 3mm×2Ts 3mm×2Ts Reserved wire -5 2UEWwisted wire∮0.10mm×20 bar 15 Tightly wind Pin6 foot bottom Between Pin4 & Pin5 16.5mm 3 / 21L×15m





4.ELECTRICAL CHARACTERISTICS:

Item Test Terminal Test Condition Standard Requirement Equipment
Semi-finished goods Manufactured goods QC Exam
Inductance Test 6 5 1.0KHz,0.3V 654~696uH 652~698uH 650~700uH TH1062 or equal
Leakage Test 6 5 1.0KHz,0.3V 20uH max 20uH max 20uH max TH1062 or equal
(short connect to other Pin)
Q Value 6 5 1.0KHz,0.3V 13 MIN 13 MIN 13 MIN TH1062 or equal
Direct Current Resistance 6 5 DC 25℃ 320mΩ max 320mΩ max 320mΩ max TH2511 or equal
11 10 32mΩ max 32mΩ max 32mΩ max
10 12 32mΩ max 32mΩ max 32mΩ max
Turns Test All Winding 20KHz,0.1V 45:3:3(±0.2Ts) CH3250 or equal
High-Voltage Insulation Test Primary——Secondary AC-50Hz-1.0mA 3750Vac, 2 Sec 4500Vac, 2 Sec 3750Vac, 60 Sec CJ2670 or equal
Primary——Core AC-50Hz-1.0mA 1750Vac, 2 Sec 2100Vac, 2 Sec 1750Vac, 60 Sec
Secondary——Core AC-50Hz-1.0mA 1750Vac, 2 Sec 2100Vac, 2 Sec 1750Vac, 60 Sec


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