Specifications
Brand Name :
Dowis
Model Number :
EF20, EF Series
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
Model :
DW3404
Name :
DIP Power Inductor
Type :
EF
Frequency :
1KHz -500KHz
Phase :
Single
Application :
Power, lighting, etc.
Description

EF20 DIP Power Inductors Manufacture Customized DW3404

Application: computer SWITCH POWER, liquid crystal display (LED), SPC SWITCH, communication equipment, energy saving lamp and other electronic appliances; All kinds of power supply instruments and instrument devices used in air conditioning, microwave oven, mechanical and electronic, medical and chemical engineering, post and telecommunication industries; Home appliances, office automation, network communication, industrial control, audio and video equipment, new energy, medical instruments, precision instruments, automotive electronics and lighting industries.

1. Drawing
UL EF20 Transformer DIP Inductor 1KHz To 500KHz Coil Inductor

2. CIRCUIT DIAGRAM

UL EF20 Transformer DIP Inductor 1KHz To 500KHz Coil Inductor

3. CONSTRUCTION DIAGRAM
UL EF20 Transformer DIP Inductor 1KHz To 500KHz Coil Inductor



4. ELECTRICAL CHARACTERISTIC

序号

No.

项目

ITEM

测试端

TERMINALS

技术要求

SPECIFICATIONS

公差

TOLERANCE

单位

UNIT

测试条件

TESTING CONDITION

测试仪器

TESTING

1

电感量

INDUCTANCE

1~4 3.7 ±10% mH 1KHz/0.25V CH3252
2

漏 感

LEAKAGE IND

3

直流电阻

RESISTANCE

1~4 5.6 MAX Ω AT 25℃ CH2512
3~6 510 MAX
4 耐压测试
HI-POT
PRI VS SEC AC,1000 / V 50Hz/5mA/2Sec CJ2670
ALL Pin VS Core AC,1000 / V 50Hz/5mA/2Sec
5

匝比极性

TURNS RATIO

ALL winding 249.5:19.5 ±0.2 Ts 20KHz/5V CH3252




5. WINDING SPECIFICATION

序号No. 起头
START
收尾
END
线材
WIRE(mm)
圈数
TURNS
绕制方式
WINDING

绝缘胶带(mm)

INSULATION TAPE(mm)

绝缘挡墙(mm)

MARGIN TAPE(mm)

MATERIAL Thick/Width Ts Pin1 Pin9 Ts
N1 1 4 2UWE-B, Φ0.20×1P 249.5 Closed Polyester tape 0.05/12.5 10 / / /
N2 3 6 2UWE-B, Φ0.20×1P 19.5 Spaced -1 layers Polyester tape 0.05/12.5 3 / / /
*挡墙层数参考,与绕线高度平齐为要(Margin barrier tape layer of the reference, and winding same height as you want)

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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UL EF20 Transformer DIP Inductor 1KHz To 500KHz Coil Inductor

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Brand Name :
Dowis
Model Number :
EF20, EF Series
Certification :
CE, UL, RoHs, ISO9001, 16949
Place of Origin :
CN
MOQ :
1000pcs
Payment Terms :
T/T, L/C
Contact Supplier
UL EF20 Transformer DIP Inductor 1KHz To 500KHz Coil Inductor

Shenzhen Dowis Electronics Co.,Ltd

Active Member
5 Years
shenzhen
Since 2008
Business Type :
Manufacturer, Exporter, Seller
Total Annual :
13,000,000.00-14,800,000.00
Employee Number :
480~500
Certification Level :
Active Member
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