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ER28 High Frequency Transformer Manufacture Customized DW3334

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Shenzhen Dowis Electronics Co.,Ltd

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ER28 High Frequency Transformer Manufacture Customized DW3334

Name: ER28 High Frequency Transformer Manufacture Customized DW3334
Brand: Dowis
Price: 1 USD

Brand Name : Dowis

Model Number : ER28, ER 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

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ER28 High-Frequency Transformer Manufacturer Customized DW3334

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. DRAWING (UNIT: MM)
ER28 High Frequency Transformer Manufacture Customized DW3334

2. PROCESS OF WINDING

Winding

Retaining Wall

Foot Position

WIre & Description

Winding Method

Groove Position

Insulation Tape

Tube

Method of entering Axle

Pin7-12 side

Pin1-6 side

Start

End

Start

End

Tape Type

Start

End

-1

-6

TIW-3,φ0.50 mm×1 bar

Equally wind a layer

Between Pin1 & 2

Between Pin5 & 6

22.0mm (Tea clour)

1.1

21L×17mm

Pin1-6 towards

front

4mm×1Ts

-4

Lamination copper foil t0.05*W12*L43mm

0.9

In the middle

Between Pin3 & 4

22.0mm (light yellow)

3.1

28L×15mm

-10

-9

TIW-3,φ0.50 mm×1 bar

Tightly wind next to PIN7-12

Between Pin9 &10

Bet ween Pin9 & 10

22.0mm (light yellow)

3.1

21L×17mm

(7,8)

(11,12)

Lamination copper foil t0.15*W19*L265mm

In the middle

Between Pin7 & 8-8 & 9

Between Pin10 &11-11 & 12

16L×15mm×2 bar

4mm×1Ts

-4

Lamination copper foil t0.05*W12*L60mm

0.9

In the middle

Between

22.0mm (tea clour)

1.1

28L×15mm

Pin3 & 4

-6

-3

TIW-3,φ0.50 mm×1 bar

Equally wind a layer

Between Pin5 & 6

Between Pin2 & 3

22.0mm (light yellow)

3.1

21L×17mm

3. ELECTRICAL CHARACTERISTICS

Item	Test Terminal		Test Condition	standard request			Equipment
				Semi-finished goods	Manufactured goods	QC Exam
Inductance Test	1	3	100KHz,0.3V	2.7~3.4mH	2.41~3.59mH	2.4~3.6mH	TH1062 or Equal
Leakage Test	1	3	100KHz,0.3V	12uH Max	12uH Max	12uH Max
			( short circus to other Pin)
Q Value	1	3	100KHz,0.3V	80Min	80Min	80Min
Direct Current Resistance	1	3	DC 25℃	285mΩ max	285mΩ max	285mΩ max	TH2511 or Equal
	10	9		12mΩ max	12mΩ max	12mΩ max
	7,8	11,12		4mΩ max	4mΩ max	4mΩ max
Turns Test	All Winding		20KHz,1V	48:2:5(±0.2Ts)			CH3250 or Equal
Short Circus Test	Pin8~9
High-Voltage Insulation Test	Pin1+3对 Pin7+9+10+12		-50Hz-1mA	3750Vac,2 Sec	4500Vac,2 Sec	3750Vac, 60 Sec
	All Pin to Core			2200Vac,2 Sec	2600Vac,2 Sec	2200Vac, 60 Sec	CJ2670 or Equal
	Pin7+8 to Pin9+10			500Vac,2 Sec	500Vac,2 Sec	500Vac, 60 Sec

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