To design your own transformer? – No!

With transformers for switch-mode power supplies from company Myrra you can avoid a demanding high frequency transformer design and you can focus only on a design of an SMPS according to your own specific demands.

This is an archive article published 11/25/2011. Some information may no longer be up to date and in line with the current state. Please contact us in case of interest.

For a power supply solution it is often more effective to use ready-made DC/DC or AC/DC modules. However if you need a power source with non-standard output voltage or if you decide from any reason for your own design of an switch- mode power supply (SMPS) like flyback or push-pull, you will need a suitable high frequency transformer.

Transformers of the 740xx series from company Myrra offer advantage in a fact, that they are optimized directly for usage with a certain control circuit (chip). That´s why they eliminate a necessity of relatively demanding design of custom transformer, or extensive comparing of parameters according to which you´d have to choose a suitable type. All you need is to choose a transformer of desired power rating and in its datasheet you will find a recommended SMPS control circuit. With some transformer types you can use more types of SMPS control circuits. Transformers provide a high level of safety – they are made of exclusively UL94-V0 listed materials and they feature a high primary/secondary insulation of more than 4000V. You can find appropriate datasheets at given transformer types listed under this article.

In case of interest please contact us at info@soselectronic.com.

To design your own transformer? – No!

Advantages / Features:

  • transformers for switch-mode power supplies
  • usable with various SMPS controllers
  • recommended SMPS controllers are listed in datasheets
  • eliminate a demanding custom transformer design
  • high primary / secondary >4000V
  • made of UL94-V0 materials
  • rated power from 5 to 90 Watts

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Additional products


74000 MYRRA  
74000

SMPS Transformer E16 5W 5V/12V

Transformers for SMPS

Ord. No.: 48842
Manufacturer: MYRRA
in stock 0 pcs
(06/03/2022: 1260 pcs)
1 pcs+
10 pcs+
25 pcs+
100 pcs+
3,12 €
2,74 €
2,34 €
1,99 €
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74001 MYRRA  
74001

SMPS Transformer E16 6W 5V

Transformers for SMPS

Ord. No.: 48844
Manufacturer: MYRRA
in stock 427 pcs
1 pcs+
10 pcs+
25 pcs+
100 pcs+
2,78 €
2,45 €
2,09 €
1,78 €
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74010 MYRRA  
74010

SMPS Transformer E16 12W 5V/12V

Transformers for SMPS

Ord. No.: 48847
Manufacturer: MYRRA
in stock 769 pcs
1 pcs+
10 pcs+
25 pcs+
100 pcs+
2,51 €
2,21 €
1,89 €
1,61 €
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74023 MYRRA  
74023

SMPS Transformer EL19 16W 3,3+5+12+18+30V

Transformers for SMPS

Ord. No.: 48852
Manufacturer: MYRRA
in stock 47 pcs
1 pcs+
1,40 €
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74030 MYRRA  
74030

SMPS Transformer E25 30W 5V+12V/12V

Transformers for SMPS

Ord. No.: 48853
Manufacturer: MYRRA
in stock 0 pcs
(06/17/2022: 1440 pcs)
(07/01/2022: 1680 pcs)
1 pcs+
10 pcs+
25 pcs+
100 pcs+
3,83 €
3,37 €
2,88 €
2,45 €
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74040 MYRRA  
74040

SMPS Transformer ETD29 60W 5V+12V/5V+12V

Transformers for SMPS

Ord. No.: 48855
Manufacturer: MYRRA
in stock 213 pcs
1 pcs+
10 pcs+
25 pcs+
100 pcs+
8,38 €
7,37 €
6,30 €
5,36 €
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74050 MYRRA  
74050

SMPS Transformer ETD34 90W 5V+12V/5V+12V

Transformers for SMPS

Ord. No.: 48857
Manufacturer: MYRRA
in stock 0 pcs
(05/27/2022: 360 pcs)
1 pcs+
10 pcs+
25 pcs+
100 pcs+
8,92 €
7,85 €
6,71 €
5,71 €
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74080 MYRRA  
74080

SMPS Transformer EF20 24W 12V/12V

Transformers for SMPS

Ord. No.: 48860
Manufacturer: MYRRA
in stock 2416 pcs
1 pcs+
10 pcs+
25 pcs+
100 pcs+
2,26 €
1,99 €
1,70 €
1,45 €
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TOP 242 PN POWER INTEGRATIONS  
TOP 242 PN

IC Switching regulator +FET 9/15W DIP8

Ord. No.: 51633
Manufacturer: POWER INTEGRATIONS
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TOP 244 PN POWER INTEGRATIONS  
TOP 244 PN

Switching Regulator +FET 30/65W DIP8

Switching Voltage Regulators

Ord. No.: 50583
Manufacturer: POWER INTEGRATIONS
in stock 5 pcs
1 pcs+
5 pcs+
50 pcs+
100 pcs+
3,82 €
3,40 €
2,99 €
2,92 €
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TOP 244 YN

IC Switching regulator +FET 30/65W TO220

Ord. No.: 50438
Manufacturer: POWER INTEGRATIONS
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TOP 249 YN

IC Switching regulator +FET 120/250W TO220

Ord. No.: 52658
Manufacturer: POWER INTEGRATIONS
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