Ei PCB Low Frequency Transformer for Audio Amplifier

• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
• Phase: Single
• Core: Ei Core
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: GWEI-28, EI-35, EI-41, EI-48, EI-57, EI-66, EI-76
• Cooling Method: Dry-type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, UL, ISO9001, CCC
• Usage: Single-phase Transformer
• Frequency Characteristics: Low Frequency
• Shape of Core: EI
• Brand: Grewin Ei Low Frequency Transformer
• Type: Transformer
• Transport Package: Export Standard Carton With Strong Pallet
• Specification: CE, ROHS
• Trademark: Grewin Ei Low Frequency Transformer
• Origin: Tianjin
• HS Code: 85043190
• Production Capacity: 50000PCS/Month

Product Description

We have passed ISO9001:2015,CE,SGS approval and IEC report
Product Specification: 

1). Models:
EI28, EI30, EI35, EI48, EI57, EI66, EI86, EI96, EI105, EI114, EI133, EI152, EI162 etc.
2). Maximum output: 1.2W, 2W, 12W, 20W, 35W, 40W, 50W, 90W, 180W, 200W, 400W, 600W, 850W, 1500W, 2400W, 2700W etc.
3). Input:100Vac, 110Vac, 115Vac, 120Vac, 220Vac, 230Vac, 240Vac etc.
4). Output:AC(0--380V); DC(0--50V) 
 

Technical Parameter Table:
1.EI PCB Transformer

Brand  Name:	GREWIN Transformer	Mode;	EI	Coil  number:	Autotransformer
Phase:	Single	Core structure	Lamination	Coil  structure:	Toroidal
Power:	0.15-1,500W		Input Voltage	AC380V-240V-230V-220V-120V-110V-100V
Application	Instruments ;Communication  products		Output Voltage	AC(0--380V); DC(0--50V)
Deliver  time	15 working days		Package	Customized standard cartons
ATTENTION:	YOU CAN CUSTOMIZED ALL SERIERS ACCORDING TO YOUR REQUERMENT

Model	Power	Dimension(cm)					Weight  (KG)	Voltage    regulation	Approval mark
		A(cm) ±1.5	B(cm) ±2	C(cm) ±2	D(cm) ±2	E(cm) ±2
GWT-EI28	1.5W	43		30	38	28	0.11	35	CE,TUV,
GWT-EI35	3.0W	47		37	38	33	0.15	22	CE,TUV,
GWT-EI41	11.0W	54		43	47	35	0.32	16.5	CE,TUV,
GWT-EI48	25.0W	62		50	65	43	0.57	13.1	CE,TUV,
GWT-EI57	40.0W	73		59	65	51	0.84	11.8	CE,TUV,
GWT-EI66	80.0W	83		68	80	58	1.38	9.3	CE,TUV,
GWT-EI76	140W	64	70	76	85	68	2.25	7.6	CE,TUV,
GWT-EI86	180W	72	75	86	92	73	2.82	7.1	CE,TUV,
GWT-EI96	250W	80	81	96	90	82	3.36	6	CE,TUV,

The windings are pin leads, simple, elegant, practical, easy to use, saving labor costs, suitable for mass production.

Skeleton imported fire-retardant material, in line with the EU RoHS Directive; machines inserted silicon steel sheet, high production efficiency. 

Transformers twice dipping, automatic baking, rust proof, beautiful appearance.

2.EI Class Chasis Transformer

Features:

EI-core power transformers, high-quality low-power silicon steel design with load loss, high output power, high efficiency, low temperature and high safety performance. 

Applications:

Widely used in air conditioners, High End Consumer Audio Amplifier,Musical Instrument Amplifier,Machine Tool Controls,Motion Controls,Medical Packaging Equipment,Communications,Telecommunications,Measurement&Inspection Instruments,Generators,Instrumentation,Avionics & Aviation,Motor Speed Controls. 

1.Features:
1) EI series (EI-28, EI-35, EI-41, EI-48, EI-57, EI-66, EI-76, EI-86, EI-96,
EI-105, EI-114) power transformer provides power supply to computers,
Electric tools, sound and communication equipment, lampions, air
Conditions, refrigerators and automatic selling machines
2) Important components for electronic equipment and wireless equipment
3) Power: 0.15-1, 500W
4) The transformer core is made of high quality silicone laminated steel
5) All products are 100% test passed and hi-pot shock
6) Clean, tidy, easy for installation

2.Product Specification: 
1. Models:
EI28, EI30, EI35, EI48, EI57, EI66, EI86, EI96, EI105, EI114, EI133, EI152, EI162 etc.

2. Maximum output: 1.2W, 2W, 12W, 20W, 35W, 40W, 50W, 90W, 180W, 200W, 400W, 600W, 850W, 1500W, 2400W, 2700W etc.

3. Input:
100Vac, 110Vac, 115Vac, 120Vac, 220Vac, 230Vac, 240Vac etc.

4. Output:
AC(0--380V); DC(0--50V) 

3.Product Feature :

1). Easy to install.
2). Lower power consumption.
3). Little temperature rising.
4). High accuracy of output voltage.
5). Diemension and output leads can be customized.
6). Dielectronic Strength is high. 

4.Application 
1). Measuring instruments.
2).Communication prducts.
3). Medical instruments.
4). Audio & Video
5). Elevator 

5.Advantage:
1).UL, CUL, CE, ISO9001:2008
2).We offer custom-made transformers, OEM and ODM are welcome
3).We deliver the quality you expect at consistently competitive prices
4).Transformer quality lifetime:10 Years.
5).Specialty Sales service:5 -10 Years
6).Transformers Test: 100% test before the shipment

About us:
1.Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business philosophy "Quality and Honesty First ".

2.Terms of Shipment:
Within 10 working days after received related prepayment or L/C.

3.Payment terms:
(1). T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7 days before
delivery.
(2). By irrevocable L/C at sight, to be issued immediately against confirmed order.
(3). Payment by T/T, if order amount is less than USD 20,000.
4.Production
The following picture showed you about all finished transformer production line and package with export standard carton and strong pallets:
 

We can manufacture EI Power Transformers.
Below is our mainly products with much advantages in our market:
Custom mains transformers 50/60 Hz

	Transformers with  particular core requirements such as size, finish, pins layout, input and output voltage.
	Where PCB does not allow the use of mains transformers encapsulated in resin we can supply air transformers with plastic shell for the protection of windings and the improvement of creepage-clearance.
	custom transformers are manufactured according to the technical and safety requirements from clients. As an example, here you can find some of the most common features you can easily request:
	Primary and secondary windings in separate sections
	Encapsulation in epoxy resin or insulating varnish dipping.
	Hot-dip tin coated phosphor bronze pins
	Pin size: Max diameter = 0,90mm , Minimum length = 4mm
	5KV Primary to Secondary dielectric strength
	100% tested
	On request they can be tested to meet CEI EN61558-1(CEI 96-3) e CEI EN 61558-2-6 (CEI 96-7) safety standards.

 

5.Flow chart of trading activities:

NO	Step	Days need
1	Request for quotation	1 day
2	Making quotations	1 day
3	Offer and counter offer	3 days
4	Sending and receiving samples	3-10 days
5	Sample confirmation	3 days
6	Placing a firm order	1 day
7	Paying and receiving the down payment	1-4 day
8	Factory production & Quality inspection	15-20 days
9	Paying and receiving the balance	4 days
10	Delivery of goods	1 days

Certificate
The certificate of our transformer has CE CQC RoHs UL.

Contact us:                                                    
Cathy
 
Tianjin Grewin Technology Co.,Ltd.
 
transformer.en.made-in-china.com