Ee25 4pin 8p 10p Ee Pq PC40 Ferrite Core Vertical Horizon Transformer Bobbin

Product Description

We have different types bobbins, click bellow CONTACT US image to get more information and inquiry.

Specification

EI - Bobbin

The role and various parts of the transformer bobbin: The transformer bobbin, also known as the transformer core or winding frame, is collectively referred to as the "bobbin" in English. It constitutes a vital structural component of the transformer, and the term "bobbin" vividly describes its function in the transformer. Transformers are widely used in today's society, and the corresponding main body, the bobbin, plays an irreplaceable role. Functions and parts of the bobbin in the transformer:

1.Provides space for winding copper wires in the transformer; the part of the bobbin that serves this function is called the winding groove.

2.Secures the magnetic core in the transformer; the part of the bobbin where the magnetic core is inserted is called the core hole, which can be circular, square, or custom-shaped, depending on the matched magnetic core.

3.The over-wire groove in the bobbin provides a pathway for wires during the winding process in transformer production.

4.The metal pins in the bobbin serve as supports for winding copper wires in the transformer; after soldering, they are connected to the PCB board, playing a role in conducting electricity during the transformer's operation.

5.The barrier at the bottom of the bobbin functions to fix the PCB board; it creates a fixed distance space for solder heaps with the PCB board, the magnetic core with the PCB board, and isolates the magnetic core from solder heaps to prevent poor insulation.

6.The protrusions, recesses, or chamfers in the bobbin determine the placement orientation or pin sequence when the transformer is in use

Item no	Window size	L*W*H(mm)
EI28 Series	8* 11	26.1*19.4*16.7
	8* 12	25.1* 19.6* 16.6
	8* 15	28.5* 19.2* 16.5
	8* 18	31.0* 19.3* 16.5
EI35 Series	10*10	25.5*23.3* 18.9
	10*13	27.5*23.7*18.9
	10*14	27.5*23.7* 18.9
	10*15	30.7*24.9*18.9
	10*20	33.4*23.7* 18.9
Have more, EI41, EI48......We still have more types bobbins, click bellow CONTACT US image to get more information and inquiry.

We have different types bobbins, click bellow CONTACT US image to get more information and inquiry.

Company Profile

Hangzhou Udwells Technology Co., Ltd.

Our company integrates product design, mold development and production. Professionally cultivate the full range of EI low-frequency products, covering all models (I-shaped, king-shaped, drawer type, pin type, potting shell, three-phase, iron bridge, bracket). All products have been automated production, saving a lot of labor costs. We also have the conditions to provide our customers with high-quality, high-quality and low-price products for a long time. We have an independent mold workshop and new products are under continuous development.

Sincerely work with our customers to create a better future!

FAQ

1. Are you a factory?
We are the manufacturer.
 
2. How long is the delivery time?
It depends on the quantity.
For samples or regular items in small qty , around 3-7 days. 
For mass production, such like 20ft container we promise to sent in 15-30 days.
 
3. Which shipping method do you provide?
For samples or small orders, goods will be sent by express.
For regular orders, goods can be sent by air or by sea, just according to your demand.
 
4. What's the price?
Different items different market will be different cost, we will keep to give best and competitive price for each customer.