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TRACOPOWER

Traco TSR, TMA - when every Watt is precious

DC/DC switch mode regulators TRACO will save the most precious substance - energy. And now they´re even more affordable thanks to a lower price and better stock.

This is an archive article published 07.05.2014. Some information may no longer be up to date and in line with the current state. Please contact us in case of interest.
Maybe, switch-mode regulators are familiar to you from your own praxis or at least from our articles New switch-mode stabilisers Traco TSRN-1 for positive and negative output or Try the effective replacement for standard 78xx regulators and many other.
Fortunately even in this segment it´s true, that thanks to a still bigger popularity of these regulators their price drops down. Moreover, thanks to our close cooperation with the producer - Traco Electronic AG and still bigger stocks we gain a better purchase price and that´s why a better sale price for you as a result. It´s the most obvious in the most popular versions like for example TSR1-2450 and TSR1-24120 with output voltage of 5V or 12V.
And the main difference between series TSR1 and TMA? TSR is a so called POL (point of load, non-isolated) regulator, thus it works as “almost lossless load” (buck converter) regulating output power similarly like classic regulators (7805, 7812), only naturally with a substantially higher efficiency. Similarly excellent is also an output voltage stability at a load variation ( typ. 0,4% / 10-100% load). Series TSRxx has the same max. output current for all output voltages, i.e. for example 5V/1A or 12V/1A. In many applications it can be beneficial that TSR operates with up to 36V input voltage.
On the other hand, series TMA is an isolation DC-DC module with an output transformer operating at high frequency (tens to hundreds of kHz). Advantage of the TMA series is a complete galvanic isolation of an output voltage (so called floating voltage) and that´s why it´s suitable even for power supplying of various measuring probes, AD converters and other devices requiring isolated power supply or elimination of ground loops. Despite a significant advantage in a form of an isolated output this type of DC-DC modules has somewhat worse output voltage stability at a load change (max +-10%/20-100% záťaž). Max. output power is constant for a given series (TMA-1W, TMR-2, TEN3-3W, ...) i.e. versions with a higher output voltage provide a lower current.
The most comprehensive overview of available DC-DC and AC-DC modules will provide you the short-form Traco catalogue and datasheets at particular types.

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

Advantages/ Features of DC-DC modules:

  • high efficiency
  • usually it´s not necessary to use a heatsink
  • industry-standard packages
  • replacement of classic 78xx regulators in a TO220 package
  • compact solution including inductor and capacitors (no external components are necessary)
  • operating temperature range is usually -40°C to +85°C
  • wide portfolio for various applications

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Gain the TSR1 module for free!

Competition with the following question has been published here:

Does the TSR1 require a minimum load?

The correct answer was: No
We have drawn the following winners:
Jozef Vician [SK]
Tomáš Brudný [CZ]
Ivan Sadlek [SK]
Richter Mathias [DE]
Péter Riszter [HU]
Congratulations to winners. We´ll inform them by e-mail.

Additional products


TSR 1-2418 TRACOPOWER  
TSR 1-2418

DC/DC Module 4,6-36V/1,8V/1A SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 86213
Manufacturer: TRACOPOWER
in stock 145 pcs
1 pcs+
5 pcs+
10 pcs+
7,70 €
6,97 €
6,43 €
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TSR 1-2425 TRACOPOWER  
TSR 1-2425

DC/DC Module 4,6-36V/2,5V/1A SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 71578
Manufacturer: TRACOPOWER
in stock 20 pcs
1 pcs+
5 pcs+
10 pcs+
20 pcs+
7,70 €
6,97 €
6,43 €
5,80 €
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TSR 1-2433 TRACOPOWER  
TSR 1-2433

DC/DC Module 4,75-36V/3,3V/1A SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 70569
Manufacturer: TRACOPOWER
in stock 1786 pcs
1 pcs+
5 pcs+
10 pcs+
20 pcs+
5,52 €
5,07 €
4,62 €
4,17 €
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TSR 1-2450 TRACOPOWER  
TSR 1-2450

DC/DC Module 6,5-36V/5V/1A SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 70570
Manufacturer: TRACOPOWER
in stock 7412 pcs
1 pcs+
5 pcs+
10 pcs+
20 pcs+
5,52 €
5,07 €
4,62 €
4,17 €
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TSR 1-24120 TRACOPOWER  
TSR 1-24120

DC/DC Module 15-36V/12V/1A SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 70571
Manufacturer: TRACOPOWER
in stock 319 pcs
(18.10.2019: 1000 pcs)
1 pcs+
5 pcs+
10 pcs+
20 pcs+
5,52 €
5,07 €
4,62 €
4,17 €
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TSR 1-24150 TRACOPOWER  
TSR 1-24150

DC/DC Module 18-36V/15V/1A SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 70789
Manufacturer: TRACOPOWER
in stock 744 pcs
1 pcs+
5 pcs+
10 pcs+
20 pcs+
7,70 €
6,97 €
6,43 €
5,80 €
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TSRN 1-24120SM TRACOPOWER  
TSRN 1-24120SM

DC/DC module 13,5-42V/4,5-13,5V/1000mA SMD

Non-isolated Step-down Regulators (POL)

Ord. No.: 112939
Manufacturer: TRACOPOWER
in stock 2 pcs
1 pcs+
5 pcs+
10 pcs+
10,60 €
9,60 €
8,78 €
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TSRN 1-24150 TRACOPOWER  
TSRN 1-24150

DC/DC module 15V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113141
Manufacturer: TRACOPOWER
in stock 86 pcs
1 pcs+
5 pcs+
10 pcs+
11,10 €
10,10 €
9,24 €
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TSRN 1-24150SM TRACOPOWER  
TSRN 1-24150SM

DC/DC module 16,5-42V/4,5-15,5V/1000mA SMD

Non-isolated Step-down Regulators (POL)

Ord. No.: 112940
Manufacturer: TRACOPOWER
in stock 46 pcs
1 pcs+
5 pcs+
10 pcs+
20 pcs+
11,10 €
10,10 €
9,24 €
8,33 €
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TSRN 1-2433 TRACOPOWER  
TSRN 1-2433

DC/DC module 3,3V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113136
Manufacturer: TRACOPOWER
in stock 54 pcs
1 pcs+
5 pcs+
10 pcs+
20 pcs+
10,10 €
9,15 €
8,33 €
7,52 €
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TSRN 1-2433SM TRACOPOWER  
TSRN 1-2433SM

DC/DC module 4,6-42V/1,5-5,5V/1000mA SMD

Non-isolated Step-down Regulators (POL)

Ord. No.: 112933
Manufacturer: TRACOPOWER
in stock 234 pcs
1 pcs+
5 pcs+
10 pcs+
20 pcs+
10,10 €
9,24 €
8,42 €
7,61 €
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TSRN 1-2450 TRACOPOWER  
TSRN 1-2450

DC/DC module 5,0V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113137
Manufacturer: TRACOPOWER
in stock 49 pcs
(18.10.2019: 100 pcs)
1 pcs+
5 pcs+
10 pcs+
20 pcs+
10,10 €
9,15 €
8,33 €
7,52 €
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TMA 0505D TRACOPOWER  
TMA 0505D

DC/DC module 1W 5VDC/±5VDC ±100mA SIP7

Isolated DC/DC Converters

Ord. No.: 3567
Manufacturer: TRACOPOWER
in stock 550 pcs
1 pcs+
5 pcs+
10 pcs+
20 pcs+
4,35 €
3,98 €
3,62 €
3,26 €
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TMA 0505 S TRACOPOWER  
TMA 0505 S

DC/DC module 1W 5VDC/5VDC 200mA SIP7

Isolated DC/DC Converters

Ord. No.: 5089
Manufacturer: TRACOPOWER
in stock 648 pcs
(18.10.2019: 1000 pcs)
1 pcs+
5 pcs+
10 pcs+
3,53 €
3,17 €
2,90 €
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TMA 0512D TRACOPOWER  
TMA 0512D

DC/DC module 1W 5VDC/±12VDC ±40mA SIP7

Isolated DC/DC Converters

Ord. No.: 3049
Manufacturer: TRACOPOWER
in stock 745 pcs
1 pcs+
5 pcs+
10 pcs+
4,35 €
3,98 €
3,62 €
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TMA 0512 S TRACOPOWER  
TMA 0512 S

DC/DC module 1W 5VDC/12VDC 80mA SIP7

Isolated DC/DC Converters

Ord. No.: 4117
Manufacturer: TRACOPOWER
in stock 126 pcs
1 pcs+
5 pcs+
10 pcs+
4,07 €
3,71 €
3,35 €
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TMA 0515D TRACOPOWER  
TMA 0515D

DC/DC module 1W 5VDC/±15VDC ±30mA SIP7

Isolated DC/DC Converters

Ord. No.: 2981
Manufacturer: TRACOPOWER
in stock 554 pcs
1 pcs+
5 pcs+
10 pcs+
4,35 €
3,98 €
3,62 €
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TMA 0515S TRACOPOWER  
TMA 0515S

DC/DC module 1W 5VDC/15VDC 65mA SIP7

Isolated DC/DC Converters

Ord. No.: 2869
Manufacturer: TRACOPOWER
in stock 652 pcs
1 pcs+
5 pcs+
10 pcs+
4,07 €
3,71 €
3,35 €
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TMA 1205 D TRACOPOWER  
TMA 1205 D

DC/DC module 1W 12VDC/±5VDC ±100mA SIP7

Isolated DC/DC Converters

Ord. No.: 9461
Manufacturer: TRACOPOWER
in stock 108 pcs
1 pcs+
5 pcs+
10 pcs+
4,35 €
3,98 €
3,62 €
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TMA 1205S TRACOPOWER  
TMA 1205S

DC/DC module 1W 12VDC/5VDC 200mA SIP7

Isolated DC/DC Converters

Ord. No.: 2908
Manufacturer: TRACOPOWER
in stock 453 pcs
1 pcs+
5 pcs+
10 pcs+
4,07 €
3,71 €
3,35 €
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TMA 1212 D TRACOPOWER  
TMA 1212 D

DC/DC module 1W 12VDC/±12VDC ±40mA SIP7

Isolated DC/DC Converters

Ord. No.: 3960
Manufacturer: TRACOPOWER
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TMA 1212 S TRACOPOWER  
TMA 1212 S

DC/DC module 1W 12VDC/12VDC 80mA SIP7

Isolated DC/DC Converters

Ord. No.: 4625
Manufacturer: TRACOPOWER
in stock 33 pcs
1 pcs+
5 pcs+
10 pcs+
4,07 €
3,71 €
3,35 €
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TMA 1215 D TRACOPOWER  
TMA 1215 D

DC/DC module 1W 12VDC/±15VDC ±30mA SIP7

Isolated DC/DC Converters

Ord. No.: 4263
Manufacturer: TRACOPOWER
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TMA 1505 D TRACOPOWER  
TMA 1505 D

DC/DC module 1W 15VDC/±5VDC ±100mA SIP7

Isolated DC/DC Converters

Ord. No.: 6692
Manufacturer: TRACOPOWER
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TMA 1515 S TRACOPOWER  
TMA 1515 S

DC/DC module 1W 15VDC/15VDC 65mA SIP7

Isolated DC/DC Converters

Ord. No.: 5326
Manufacturer: TRACOPOWER
in stock 93 pcs
1 pcs+
5 pcs+
10 pcs+
4,07 €
3,71 €
3,35 €
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TMA 2405S TRACOPOWER  
TMA 2405S

DC/DC module 1W 24VDC/5VDC 200mA SIP7

Isolated DC/DC Converters

Ord. No.: 2707
Manufacturer: TRACOPOWER
in stock 39 pcs
1 pcs+
5 pcs+
10 pcs+
4,71 €
4,26 €
3,89 €
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TMA 2412D TRACOPOWER  
TMA 2412D

DC/DC module 1W 24VDC/±12VDC ±40mA SIP7

Isolated DC/DC Converters

Ord. No.: 2868
Manufacturer: TRACOPOWER
in stock 148 pcs
1 pcs+
5 pcs+
10 pcs+
4,71 €
4,26 €
3,89 €
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TMA 2412 S TRACOPOWER  
TMA 2412 S

DC/DC module 1W 24VDC/12VDC 80mA SIP7

Isolated DC/DC Converters

Ord. No.: 9300
Manufacturer: TRACOPOWER
in stock 976 pcs
1 pcs+
5 pcs+
10 pcs+
20 pcs+
4,71 €
4,26 €
3,89 €
3,53 €
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TMA 2415D TRACOPOWER  
TMA 2415D

DC/DC module 1W 24VDC/±15VDC ±30mA SIP7

Isolated DC/DC Converters

Ord. No.: 2879
Manufacturer: TRACOPOWER
in stock 1312 pcs
1 pcs+
5 pcs+
10 pcs+
4,71 €
4,26 €
3,89 €
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TMA 2415 S TRACOPOWER  
TMA 2415 S

DC/DC module 1W 24VDC/15VDC 65mA SIP7

Isolated DC/DC Converters

Ord. No.: 4676
Manufacturer: TRACOPOWER
10 pcs+
20 pcs+
50 pcs+
100 pcs+
4,12 €
3,88 €
3,66 €
3,43 €
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