Transformer classic or an electronic one?

If we´re deciding whether to use a classic transformer or better a modern electronic switch-mode power supply (SMPS), it´s good to realize pros and cons of both technologies.

Switch mode power supplies Myrra series 47000 already found their stable place on the market and they gradually replace classic transformers. Why is it so?

Switch-mode power supplies definitely win in a perhaps the most important requirement of these days - in efficiency (in a whole load range) and in a low no-load consumption (Standby). Similarly also many other factors say in favor of switch-mode power supplies, for example power/ weight ratio, size, simple elimination of a high inrush current, silent operation, minimum stray magnetic field, ...

From these reasons for the majority of applications it´s better and often even cheaper to use an “electronic replacement” of transformer - for example modules series Myrra 47xxx or AC/DC modules Traco Power for higher power ratings.

Maybe it´s worth to question, whether there´s still any reason to use a classic transformer in usual applications with power demands say 1-1000W? Surely yes, for example in application very sensitive to HF radiation (HF receivers, pre-amplifiers,…) but also in applications with a demand for the highest reliability for decades. Transformer is a component which almost doesn´t age and if properly sealed in a resin, then it´s lifetime is extremely long. As a transformer doesn´t contain any semiconductors, capacitors etc, it´s also very resistant to various spikes, overvoltages and noise in a power line...

Power supplies of 47000 series have a very low no-load power consumption - only 200 mW, resp. 300 mW at unregulated types. With the 4000VAC isolation (input/output), they´re ready for a class II – reinforced isolation. With a built-in protection against shortcut and over-temperature, they´re ready for usage in a virtually any device with power demands up to approx. 5-5,4W.

Detailed information will provide you the Myrra 47000 datasheet and the article Save energy and production costs with Myrra 47000 switch-mode power supplies.

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

Gain the AC/DC module Myrra for free!

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What´s the input voltage range of Myrra 47000 series?

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Additional products
image type / kind / description Ord.number manufacturer in stock price/pc excl. VAT
47114

AC/DC Power Supply for PCB 2,4W 12V/0,2A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

128755
S

MYRRA

in stock 66 pcs

1 pcs+ 6,0500 €

5 pcs+ 4,9000 €

25 pcs+ 4,3200 €

100 pcs+ 3,9500 €

250 pcs+ 3,7200 €

47121

AC/DC Power Supply for PCB 2,5W 3,3V/0,75A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

101290
S

MYRRA

in stock 749 pcs
Currently in stock 750 pcs
Reserved for customers 1 pcs
Currently available 749 pcs
If you are interested in bigger quantity that is currently available in stock, please contact our sales assistant or click on Get Quote.
(19.08.2016: 500 pcs)

1 pcs+ 5,3700 €

5 pcs+ 4,3500 €

25 pcs+ 3,8300 €

100 pcs+ 3,5000 €

250 pcs+ 3,3000 €

47122

AC/DC Power Supply for PCB 2,75W 5V/0,55A

More info: 47122.pdf

PCB Mount AC/DC Converters

101291
S

MYRRA

in stock 110 pcs
Currently in stock 430 pcs
Reserved for customers 320 pcs
Currently available 110 pcs
If you are interested in bigger quantity that is currently available in stock, please contact our sales assistant or click on Get Quote.
(23.09.2016: 1000 pcs)

1 pcs+ 5,2100 €

5 pcs+ 4,2100 €

25 pcs+ 3,7200 €

100 pcs+ 3,4000 €

250 pcs+ 3,2000 €

47123

AC/DC Power Supply for PCB 2,5W 9V/0,27A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

101292
S

MYRRA

in stock 3 pcs
(05.08.2016: 50 pcs)

1 pcs+ 5,3100 €

5 pcs+ 4,3000 €

25 pcs+ 3,7900 €

100 pcs+ 3,4600 €

250 pcs+ 3,2600 €

47124

AC/DC Power Supply for PCB 2,5W 12V/0,21A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

101293
S

MYRRA

in stock 470 pcs
(29.07.2016: 72 pcs)
(23.09.2016: 1000 pcs)

1 pcs+ 5,2500 €

5 pcs+ 4,2500 €

25 pcs+ 3,7500 €

100 pcs+ 3,4200 €

250 pcs+ 3,2200 €

47125

AC/DC Power Supply for PCB 2,5W 15V/0,17A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

101294
S

MYRRA

in stock 0 pcs
Currently in stock 130 pcs
Reserved for customers 500 pcs
Currently available 0 pcs
If you are interested in bigger quantity that is currently available in stock, please contact our sales assistant or click on Get Quote.
(05.08.2016: 200 pcs)

1 pcs+ 5,9300 €

5 pcs+ 4,8000 €

25 pcs+ 4,2300 €

100 pcs+ 3,8700 €

250 pcs+ 3,6400 €

47126

AC/DC Power Supply for PCB 2,5W 24V/0,11A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

101295
S

MYRRA

in stock 240 pcs

1 pcs+ 5,9900 €

5 pcs+ 4,8500 €

25 pcs+ 4,2800 €

100 pcs+ 3,9100 €

250 pcs+ 3,6800 €

47132

AC/DC Power Supply for PCB 2,5W 5V/0,5A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

128759
S

MYRRA

in stock 140 pcs

1 pcs+ 5,5400 €

5 pcs+ 4,4800 €

25 pcs+ 3,9600 €

100 pcs+ 3,6100 €

250 pcs+ 3,4000 €

47133

AC/DC Power Supply for PCB 3,2W 9V/0,36A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

114286
S

MYRRA

in stock 410 pcs

1 pcs+ 4,9500 €

5 pcs+ 4,0000 €

25 pcs+ 3,5300 €

100 pcs+ 3,2300 €

250 pcs+ 3,0400 €

47134

AC/DC Power Supply for PCB 3,2W 12V/0,27A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

126357
S

MYRRA

in stock 507 pcs

1 pcs+ 5,3500 €

5 pcs+ 4,3300 €

25 pcs+ 3,8200 €

100 pcs+ 3,4900 €

250 pcs+ 3,2800 €

47135

AC/DC Power Supply for PCB 3,2W 18V/0,18A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

128760
S

MYRRA

in stock 25 pcs

1 pcs+ 5,6700 €

5 pcs+ 4,5900 €

25 pcs+ 4,0500 €

100 pcs+ 3,7000 €

250 pcs+ 3,4800 €

47136

AC/DC Power Supply for PCB 3,2W 24V/0,13A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

128761
S

MYRRA

in stock 76 pcs

1 pcs+ 5,7500 €

5 pcs+ 4,6500 €

25 pcs+ 4,1000 €

100 pcs+ 3,7500 €

250 pcs+ 3,5300 €

47151

AC/DC Power Supply for PCB 4,2W 3,3V/1,35A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

101296
S

MYRRA

in stock 170 pcs

1 pcs+ 5,9100 €

5 pcs+ 4,7800 €

25 pcs+ 4,2200 €

100 pcs+ 3,8500 €

250 pcs+ 3,6300 €

47152

AC/DC Power Supply for PCB 4,5W 5V/0,9A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

101297
S

MYRRA

in stock 558 pcs
Currently in stock 810 pcs
Reserved for customers 252 pcs
Currently available 558 pcs
If you are interested in bigger quantity that is currently available in stock, please contact our sales assistant or click on Get Quote.
(29.07.2016: 700 pcs)
(09.09.2016: 400 pcs)
(09.09.2016: 400 pcs)

1 pcs+ 5,1500 €

5 pcs+ 4,1700 €

25 pcs+ 3,6800 €

100 pcs+ 3,3600 €

250 pcs+ 3,1600 €

47153

AC/DC Power Supply for PCB 5W 9V/0,55A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

101298
S

MYRRA

in stock 418 pcs

1 pcs+ 5,1300 €

5 pcs+ 4,1500 €

25 pcs+ 3,6600 €

100 pcs+ 3,3400 €

250 pcs+ 3,1500 €

47154

AC/DC Power Supply for PCB 5W 12V/0,42A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

101299
S

MYRRA

in stock 0 pcs
Currently in stock 0 pcs
Reserved for customers 753 pcs
Currently available 0 pcs
If you are interested in bigger quantity that is currently available in stock, please contact our sales assistant or click on Get Quote.
(29.07.2016: 1250 pcs)
(29.07.2016: 1250 pcs)

1 pcs+ 5,1000 €

5 pcs+ 4,1300 €

25 pcs+ 3,6400 €

100 pcs+ 3,3300 €

250 pcs+ 3,1300 €

47155

AC/DC Power Supply for PCB 5W 15V/0,32A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

101300
S

MYRRA

in stock 124 pcs
Currently in stock 1000 pcs
Reserved for customers 876 pcs
Currently available 124 pcs
If you are interested in bigger quantity that is currently available in stock, please contact our sales assistant or click on Get Quote.
(12.08.2016: 200 pcs)

1 pcs+ 5,1500 €

5 pcs+ 4,1700 €

25 pcs+ 3,6800 €

100 pcs+ 3,3600 €

250 pcs+ 3,1600 €

47156

AC/DC Power Supply for PCB 5W 24V/0,22A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

101301
S

MYRRA

in stock 648 pcs

1 pcs+ 5,1500 €

5 pcs+ 4,1700 €

25 pcs+ 3,6800 €

100 pcs+ 3,3600 €

250 pcs+ 3,1600 €

47162

AC/DC Power Supply for PCB 4,5W 5V/0,9A

More info: Myrra_47162.pdf

PCB Mount AC/DC Converters

128762
S

MYRRA

in stock 56 pcs
(05.08.2016: 30 pcs)
(23.09.2016: 20 pcs)

1 pcs+ 5,8200 €

5 pcs+ 4,7100 €

25 pcs+ 4,1500 €

100 pcs+ 3,7900 €

250 pcs+ 3,5700 €

47163

AC/DC Power Supply for PCB 5W 9V/0,55A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

128763
S

MYRRA

in stock 640 pcs

1 pcs+ 5,4400 €

5 pcs+ 4,4000 €

25 pcs+ 3,8900 €

100 pcs+ 3,5500 €

250 pcs+ 3,3400 €

47164

AC/DC Power Supply for PCB 5W 12V/0,42A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

109921
S

MYRRA

in stock 410 pcs

1 pcs+ 5,0400 €

5 pcs+ 4,0800 €

25 pcs+ 3,6000 €

100 pcs+ 3,2900 €

250 pcs+ 3,1000 €

47165

AC/DC Power Supply for PCB 5W 18V/0,28A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

115658
S

MYRRA

in stock 100 pcs

1 pcs+ 5,9900 €

5 pcs+ 4,8500 €

25 pcs+ 4,2800 €

100 pcs+ 3,9100 €

250 pcs+ 3,6800 €

47166

AC/DC Power Supply for PCB 5W 24V/0,21A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

109922
S

MYRRA

in stock 69 pcs

1 pcs+ 6,1400 €

5 pcs+ 4,9700 €

25 pcs+ 4,3800 €

100 pcs+ 4,0000 €

250 pcs+ 3,7700 €

47243

AC/DC Power Supply for PCB 4W 10,5V/0,38A 7V/0,1A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

128765
S

MYRRA

in stock 100 pcs

1 pcs+ 6,4300 €

5 pcs+ 5,2000 €

25 pcs+ 4,5900 €

100 pcs+ 4,1900 €

250 pcs+ 3,9500 €

47245

AC/DC Power Supply for PCB 4W 12V/0,13A 5,5V/0,3A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

128767
S

MYRRA

in stock 69 pcs

1 pcs+ 6,4300 €

5 pcs+ 5,2000 €

25 pcs+ 4,5900 €

100 pcs+ 4,1900 €

250 pcs+ 3,9500 €

47246

AC/DC Power Supply for PCB 4W 5V/0,4A 12V/0,17A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

101302
S

MYRRA

in stock 680 pcs

1 pcs+ 7,0400 €

5 pcs+ 5,7000 €

25 pcs+ 5,0300 €

100 pcs+ 4,5900 €

250 pcs+ 4,3200 €

47247

AC/DC Power Supply for PCB 4W ±15V/0,13A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

103094
S

MYRRA

in stock 90 pcs
Currently in stock 100 pcs
Reserved for customers 10 pcs
Currently available 90 pcs
If you are interested in bigger quantity that is currently available in stock, please contact our sales assistant or click on Get Quote.

1 pcs+ 6,3900 €

5 pcs+ 5,1700 €

25 pcs+ 4,5600 €

100 pcs+ 4,1700 €

250 pcs+ 3,9200 €

47252

AC/DC Power Supply for PCB 3,5W 5V/0,6A 5V/0,6A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

103895
S

MYRRA

in stock 990 pcs

1 pcs+ 5,3400 €

5 pcs+ 4,3200 €

25 pcs+ 3,8100 €

100 pcs+ 3,4800 €

250 pcs+ 3,2800 €

47254

AC/DC Power Supply for PCB 5W 12V/0,165A 12V/0,165A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

103185
S

MYRRA

in stock 400 pcs

1 pcs+ 6,1600 €

5 pcs+ 4,9900 €

25 pcs+ 4,4000 €

100 pcs+ 4,0200 €

250 pcs+ 3,7800 €

47255

AC/DC Power Supply for PCB 5W 2x15V/0,17A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

121875
S

MYRRA

in stock 294 pcs

1 pcs+ 5,8800 €

5 pcs+ 4,7600 €

25 pcs+ 4,2000 €

100 pcs+ 3,8400 €

250 pcs+ 3,6100 €

47257

AC/DC Power Supply for PCB 4W 5V/0,4A 12V/0,17A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

103306
S

MYRRA

in stock 340 pcs

1 pcs+ 5,9600 €

5 pcs+ 4,8200 €

25 pcs+ 4,2600 €

100 pcs+ 3,8900 €

250 pcs+ 3,6600 €

47258

AC/DC Power Supply for PCB 5W 18V/0,15A 8V/0,15A

More info: myrra47000.pdf

PCB Mount AC/DC Converters

128764
S

MYRRA

in stock 160 pcs

1 pcs+ 6,3300 €

5 pcs+ 5,1200 €

25 pcs+ 4,5200 €

100 pcs+ 4,1300 €

250 pcs+ 3,8900 €

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