Step Down High Frequency Light Transformer with IEC Approval
GREWIN's High Frequency Transformer:
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 .
The following transformer is for EE,ETL, PQ, EFD,ER,EPC,RM series:
Applications:
PCB circuits, computer, TV, monitor, scanner, duplicator, mobile adapters, printer and other equipments and instruments.
Features:
High frequency transformers ferrite core range depends on design parameters and the designers personal preferences.
Indicative power capacity for different core types (chart below) provides general guideline for an initial core selection
UL insulation system for Class B(130), F(155), H(180)
Can make customized lamination 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
3. Can make customized lamination transformers:
ETD COILFORMERS
| HORIZONTAL COILFORMERDIMENSIONS (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 |



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