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Contact: Amy Walker
Company: Tianjin Grewin Technology Co.,ltd.
RM1013 2#Building MeiNian Plaza No.16 DongTing Road HeXi Distr, 300222 Tianjin China.
Tianjin 300222
China
Phone: +862284943756
E-Mail: Send Inquiry
Date/Time:  8/16/18 7:59 GMT
 

RM Etd Efd Frerrite Core Transformer for Switching Power Supply

EFD type Transformer ParametersRM Etd Efd Frerrite Core Transformer for Switching
Power Supply
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

RM Etd Efd Frerrite Core Transformer for Switching Power Supply



Table3: ETD type Transformer Parameters
RM Etd Efd Frerrite Core Transformer for Switching Power Supply

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

RM Etd Efd Frerrite Core Transformer for Switching Power Supply


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:
Amy

Tianjin Grewin Technology Co.,Ltd.
Website:www.grewin-tech.com
Tel:86- , 22-84943756
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