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New switch-mode stabilisers Traco TSRN-1 for positive and negative output

Novelty from Traco Power – switch-mode regulator TSRN-1, as a direct replacement for linear stabilisers 78xx, offers a few improvements in comparison to the recent type TSR-1.
This is an archive article published 09/13/2011. Some information may no longer be up to date and in line with the current state. Please contact us in case of interest.

TSR-1 series already found many supporters, thanks to its features, like ability to directly replace linear stabilisers, high efficiency and a functionality even without input and output capacitors. Novelty TSRN-1, with improved features, spreads possibilities of usage of these regulators (DC/DC modules).

Similarly like TSR-1, offers TSRN-1 a direct compatibility (pin to pin) with 78xx stabilisers, contains filter capacitors, doesn´t require heatsink, has a shortcut protection and many other positive properties. Novelty is, that in comparison to type TSR-1, it offers a full load operation up to +70°C, and a derated operation up to +85°C, and moreover it contains a thermal protection, thus providing a higher protection to powered devices in case of unpredicted overheating of a device. For some applications, it can be an advantage, that TSRN-1 has also a wider input voltage range – up to 42V.

TSRN-1 is able to create negative supply thanks to a switch mode principle, thus without a necessity of another transformer winding, you have available negative power supply without extra costs.

SMD version TSRN-1 SM offers a possibility to adjust output voltage and it has a 1 extra pin for remote control (on/off) for decreasing of power consumption. TSRN-1 SM series is available in 6 versions, with a wide range of output voltage adjustment. Required output voltage is obtainable with more types, it is only necessary to choose, which one is the most suitable for your application, mainly depending on the input voltage.

On the 20-th anniversary occasion of SOS electronic brands, we offer to you a possibility to gain free samples of TSRN-1 SM.

For more informations click here.


New types are already in stock, readilay available. In case of interest, please contact us at info@soselectronic.com.

New switch-mode stabilisers Traco TSRN-1 for positive and negative output
Advantages / Features:
  • switch-mode stabiliser with a high efficiency
  • SIP package fits existing TO-220 footprint
  • direct replacement of linear stabilisers 78xx series
  • suitable for positive and negative output, without necessity of a separate input voltage
  • built-in filter capacitors
  • specified temperature -40 to +85°C
  • no heatsink required
  • shortcut and thermal protection
  • input voltage up to 42V
  • excellent line/load regulation
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TSRN 1-2450SM TRACOPOWER  
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TSRN 1-24150 TRACOPOWER  
TSRN 1-24150

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TSRN 1-2433 TRACOPOWER  
TSRN 1-2433

Non-Isolated DC/DC Converter 3,3W 4,6-36V/3,3V 1A SIP3

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TSRN 1-2450 TRACOPOWER  
TSRN 1-2450

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Additional products


TSRN 1-24120SM TRACOPOWER  
TSRN 1-24120SM

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TSRN 1-24150SM TRACOPOWER  
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TSRN 1-0525SM TRACOPOWER  
TSRN 1-0525SM

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TSRN 1-24120 TRACOPOWER  
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TSRN 1-24120A TRACOPOWER  
TSRN 1-24120A

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TSRN 1-2415 TRACOPOWER  
TSRN 1-2415

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TSRN 1-24150A TRACOPOWER  
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TSRN 1-2415A TRACOPOWER  
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TSRN 1-2418 TRACOPOWER  
TSRN 1-2418

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TSRN 1-2418A TRACOPOWER  
TSRN 1-2418A

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Non-isolated Step-down Regulators (POL)

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TSRN 1-2425 TRACOPOWER  
TSRN 1-2425

Non-Isolated DC/DC Converter 2,5W 4,6-36V/2,5V 1A SIP3

Non-isolated Step-down Regulators (POL)

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Manufacturer: TRACOPOWER
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TSRN 1-2425A TRACOPOWER  
TSRN 1-2425A

Non-Isolated DC/DC Converter 2,5W 4,6-36V/2,5V 1A SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113144
Manufacturer: TRACOPOWER
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TSRN 1-2433A TRACOPOWER  
TSRN 1-2433A

Non-Isolated DC/DC Converter 3,3W 4,6-36V/3,3V 1A SIP3

Non-isolated Step-down Regulators (POL)

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Manufacturer: TRACOPOWER
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TSRN 1-2450A TRACOPOWER  
TSRN 1-2450A

Non-Isolated DC/DC Converter 5W 6,5-36V/5V 1A SIP3

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TSRN 1-2465 TRACOPOWER  
TSRN 1-2465

Non-Isolated DC/DC Converter 6,5W 8-36V/6,5V 1A SIP3

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TSRN 1-2465A TRACOPOWER  
TSRN 1-2465A

Non-Isolated DC/DC Converter 6,5W 8-36V/6,5V 1A SIP3

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TSRN 1-2490 TRACOPOWER  
TSRN 1-2490

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Non-isolated Step-down Regulators (POL)

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TSRN 1-2490A TRACOPOWER  
TSRN 1-2490A

Non-Isolated DC/DC Converter 9W 10,5-36V/9V 1A SIP3

Non-isolated Step-down Regulators (POL)

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Manufacturer: TRACOPOWER
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TSRN 1-2490SM TRACOPOWER  
TSRN 1-2490SM

Non-Isolated DC/DC Converter 12,6W 10,5-42V/4,5-12,6V 1A SMD

Non-isolated Step-down Regulators (POL)

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Manufacturer: TRACOPOWER
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