United Kingdom
74000 series flyback switch-mode transformers
Supplier: Myrra
Technology type: Switch-mode Transformers
There are many different topologies for switch-mode power supplies/converters topologies, but the most popular is the flyback option. The typical structure of the transformer is based on high-frequency magnetic materials, (ferrite, amorphous, nanocrystalline, and alloy powder cores) and composed of a primary winding, one or more secondaries, and an auxiliary winding.
Designers design transformer parameters according to the controller that will be used in their project, therefore it is important that transformer design is aligned to the semiconductor’s characteristics.
Myrra standard 740xx product line has been developed according to the most popular circuit controller. They are compact, efficient, and cost-effective.
Exclusively using UL94-V0 materials, they offer high quality and allow a faster certification process.
Range features
A high level overview of what this range offers
- Primary/secondary insulation >= 4000V
- Creepage distance primary/secondary >= 6mm
- Ambient temperature up to 120°C
- Construction conforms to IEC950, IEC335, IEC61558-2-16 for reinforced insulation
- Certified class B UL electrical insulation system E113497-B1
- Fast modified standard products
- Range with and without aux winding
- Single or multiple outputs configurations
- Primary/auxiliary insulation >= 1500V
- Primary shielded option available
- Power handling range from 1W up to 200W
- Custom solutions available upon request
What's in this range?
All the variants in the range and a comparison of what they offer
|
Model |
Core size |
Max output power (W) |
Number of outputs |
Output voltages (Vdc) |
|---|---|---|---|---|
|
74004 – 74005 |
E16-H |
1.7 |
1 |
4 – 7V/ 8 – 12V |
|
74290 – 74293 |
E16-V |
1.5 – 3.1 |
1 |
3.3 – 6/ 7.5 – 15 |
|
74200 |
E16-V |
5 |
2 |
3.3 – 7/ 8.0 – 17.0 |
|
74201 – 74203 |
E16-V |
6 |
1 – 2 |
2 – 4/ 3 – 6/ 9 – 18 |
|
74294 – 74295 |
E16-V |
9 |
1 |
3.3 – 6/ 7.5 – 15 |
|
74210 – 74214 – 74215 |
E16-V |
12 |
2 – 3 |
3.3 – 7/ 4 – 6/ 8 – 17/ 12 – 18/ 15 – 30/ 19.2 – 28 |
|
74020 – 74021 – 74023 |
EL19 |
16 – 18 |
2 and 5 |
3.3 – 7/ 8 – 16.5/ 2.8 – 3.8/ 4.25 – 5.75/ 10.2 – 13.8/ 15.3 – 20.7/ 25.5 – 34.5 |
|
74087 – 74089 |
EF20 |
20 – 24 |
2 – 3 |
2.8 – 3.8/ 4.25 – 5.75/ 3 – 7.5/ 9 – 15/ 10.2 – 13.8/ 15 – 30 |
|
74030 |
E25 |
30 |
3 |
3.3 – 7/ 8 – 16 |
|
74040 |
ETD29 |
60 |
4 |
3.3 – 7/ 8 – 16.5 |
|
74043 |
ERL28 |
60 |
5 |
2.8 – 3.8/ 4.25 – 5.75/ 10.2 – 13.8/ 15.3 – 20.7/ 25.5 – 34.5 |
|
74050 – 74060 |
ETD34 – ETD39 |
90 |
4 |
3.3 – 6.5/ 8.5 – 17 |
|
74070 |
ETD44 |
180 |
4 |
3.3 – 6.5/ 8.5 – 17 |
Enquire
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Within the Magnetics Products Technology Centre, we offer an array of services to help create customised solutions.
With the largest team of technical support specialists in Europe, we are at the forefront of a design led approach to delivering challenging and custom solutions for magnetic cores or components for production.
Whether your need is simple or complex, we can develop a solution to achieve your goals. With in- house experts we can design, develop and test prototypes that meet performance and environmental requirements of your application.
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