RM Etd Efd Frerrite Core Transformer for Switching Power Supply

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio, Communication
• Phase: Single
• Model NO.: GWRM12, GWETD49, GWETD59, GWEFD25
• Core: RM Efd Etd
• Cooling Method: Dry-type Transformer
• Winding Type: Auto-transformer
• Certification: ISO9001-2000, ISO9001, CCC, Ce
• Usage: Single-phase Transformer
• Frequency Characteristics: High Frequency
• Shape of Core: EE
• Brand: Grewin High Frequency Transformer
• Type: High Frequency Transformer
• Frequency: Higher Than 200kHz
• Test Process1: Leakage Indutance Test, DC Resistance Test
• Coil Number: 3va 6va 10va 30va 100va
• Application1: Communication Lighting
• Transport Package: Export Standard Carton with Strong Pallet
• Specification: VDE, CE
• Trademark: Grewin EFD High Frequency Transformer
• Origin: Tianjin
• HS Code: 85043190
• Production Capacity: 50000 /Month

Product Description

Table1: RM type Transformer Parameters

Table2: EFD type Transformer Parameters

Model	Pin	Dimension
		A	B	C	D	E
EFD-12	8	6	17	20	3.0	13.5
EFD-15	10	7.3	18.2	21.35	2.5	15
EFD-15	10	7.5	19.3	22.6	3.0	16.7
EFD-20	10	9.4	25.3	27.7	3.75	21.7
EFD-20	12	9.7	24	26.8	3	20
EFD-25	10	13.4	29.7	35.4	5	25
EFD-25	10	12.6	29.7	31.5	5	25
EFD-30	12	12.6	31.6	35.5	5	30

Table3: ETD type Transformer Parameters

 

HORIZONTAL COILFORMER  DIMENSIONS (mm)
TYPE	A	B	C	D	E	F	G	H	I	J	K
ETD29	35.3	21.6	11.8	10	6.4	25	3.5	35.2	21.2	19.4	0.7
ETD34	39.6	25	13.4	11.4	-	34.6	4.5	42.8	23.4	20.9	1
ETD39	44.6	28.9	15.1	13.1	-	37	4.5	47.8	28.2	25.7	1
ETD44	49.6	31.9	17.7	15.5	-	39.9	4.5	52.2	32	29.5	1
ETD49	54.5	35.7	19.2	17	-	42.4	4.5	57.2	35.2	32.7	1
ETD54	61.5	39.15	22	19.8	-	46	4.5	61.5	39.3	36.8	1
ETD59	66.9	42.65	24.9	22.4	-	49.2	4.5	66.4	43.7	41.2	1

1).Features:
 Has a strong anti-interference, distributed capacitance, impedance, attenuation of low transmission, firm
structure,can fine-tune the inductance, etc., are widely used in fax
machines, PBX.

2). Applicable frequency range: 20 to 100kHz :
Operating frequency: higher than 200kHz
High magnetic flux and low loss magnetic materials
With low leakage inductance and high efficiency .
 
3).Applications: 
PCB circuits, computer, TV, monitor, scanner, duplicator, mobile adapters, printer and other equipments and instruments.
UL insulation system for Class B (130), F (155), H (180)
 
4). Can make other customized Ferrite transformers:
Power range: core type using N67 grade material
<5: RM4, P11/7, EF12.6 and U10
5 to 10: E (F) 16, RM5 and P14/8
10 to 20: RM6, E (F) 20, P18, U15 and EFD15
20 to 50: RM8, P22, RM10 ETD29, E25 and EFD20
50 to 100: ETD29, ETD34, RM12, P30 and EFD25
100 to 200: ETD34, ETD39, ETD44, P36, E30, E42 and EFD30
200 to 500: ETD44, ETD49 and E55
>500: ETD54, ETD59 and E65
 

5)Advantage:
1.UL, CUL, CE, ISO9001:2015
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 ".
Grewin Mission: Growing together side by side,Mutual success hand in hand.
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).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

Contact:                                                       
Cathy
  
Tianjin Grewin Technology Co.,Ltd.
Website:transformer.en.made-in-china.com
Tel:[phone]