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Shenzhen Dowis Electronics Co.,Ltd

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Home / Products / HF Transformer

RoHs ER2828 Insulation HF Transformer 415V 440V

RoHs ER2828 Insulation HF Transformer 415V 440V
RoHs ER2828 Insulation HF Transformer 415V 440V RoHs ER2828 Insulation HF Transformer 415V 440V RoHs ER2828 Insulation HF Transformer 415V 440V
Basic Information
Place of Origin: CN
Brand Name: Dowis
Certification: CE, UL, RoHs, ISO9001, 16949
Model Number: ER2828, ER Series
Minimum Order Quantity: 1000pcs
Packaging Details: Carton Box
Delivery Time: 3-4Weeks
Payment Terms: T/T, L/C
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  • Detail Information
  • Product Description
Storage Temperature: -40-85˚C Enviornmental Temperature: -40--85˚C
Size: 30*31mm Operating Temperature: 110˚C MAX
Relative Humidity: 5%-95%
High Light:

ER2828 Insulation HF Transformer

,

RoHs ER2828 HF Transformer 415V 440V

,

RoHs ER2828 Insulation Transformer

ER2828 High-Frequency Transformer Manufacturer Customized DW5636


1.High quality and Competitive price
2.Excellent after-sale service
3.High-temperature resistant
5.High efficiency of over 95%
6. Working frequency range 20kHZ-500kHZ
7.High isolation strength
8. Lower profile and weight
9. high power density
10. Operating temperature -40℃to+125℃
11.Custom designs available
12.Supply samples free with short delivery time
13.Suitable for wide range of switching power supply / power transformer/ LED driver transformer/current transformer/distribuition transformer
14. Welcome to visit our factory.

 

1. Drawing (Unit: mm)
RoHs ER2828 Insulation HF Transformer 415V 440V 0
 

2. Environmental Conditions

  • Storage Temperature: -40-85˚C;
  • Enviornmental Temperature: -40--85˚C;
  • Operating Temperature: 110˚C MAX;
  • Relative Humidity: 5%-95%;
  • Long Term Durability Test.

     

3. Electrical Specification

Item Unit Test Lead Test Condition MIN NOR MAX
Inductance Value uH 5-4 1KHz,0.3V, Ser 440 450 460
Leakage Inductance uH 5-4

100KHz,0.3V, Ser
(Other Winding Short Circuit)

/ / 20
Q Value / 5-4 100KHz,0.3V, Ser 180 / /
Dielectric
Strength
mA Primary-Secondary 3750Vac,60s / / 1
mA Primary-Core 2200Vac,60s / / 1
mA Secondary-Core 2200Vac,60s / / 1
Direct Current Resistance Ω 5-4 25℃ / / 600
mΩ 2-1 25℃ / / 108
mΩ 9-10 25℃ / / 18
mΩ 7-8 25℃ / / 85
Insulation Resistance MΩ Np-Ns 500Vdc 100 / /

 



4. Bottom Core Wrapping Process
RoHs ER2828 Insulation HF Transformer 415V 440V 1

2 layers of 12mm wide tape are used to wrap the bottom core along the edge of the core, and then the tape beyond the edge of the core is folded inside to cover the whole edge of the core. The tape at the corner shall not be damaged.


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.

 

Tag:

High Frequency EPC Transformer UL,

OEM ODM EE4220 Transformer,

High Frequency Transformer 100W To 3000W

Contact Details
martinliao

Phone Number : +8618928454332

WhatsApp : +85264885839

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