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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Main products


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 30 pcs
508 pcs in 5-15 days
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TSRN 1-2450SM TRACOPOWER  
TSRN 1-2450SM

DC/DC module 6,5-42V/2,5-8,0V/1000mA SMD

Non-isolated Step-down Regulators (POL)

Ord. No.: 112937
Manufacturer: TRACOPOWER
in stock 568 pcs
1 pcs+
5 pcs+
10 pcs+
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11,20 €
10,40 €
9,54 €
9,21 €
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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 20 pcs
205 pcs in 5-15 days
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5 pcs+
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12,30 €
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10,10 €
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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 123 pcs
1074 pcs in 5-15 days
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11,10 €
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9,45 €
9,21 €
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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 125 pcs
1644 pcs in 5-15 days
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11,20 €
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9,50 €
9,26 €
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Additional products


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
245 pcs in 5-15 days
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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
187 pcs in 5-15 days
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TSRN 1-0525SM TRACOPOWER  
TSRN 1-0525SM

DC/DC module 5,0V/1,2-3,6V/1000mA SMD

Non-isolated Step-down Regulators (POL)

Ord. No.: 112932
Manufacturer: TRACOPOWER
1550 pcs in 5-15 days
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20 pcs+
50 pcs+
100 pcs+
11,00 €
10,50 €
9,88 €
9,29 €
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TSRN 1-24120 TRACOPOWER  
TSRN 1-24120

DC/DC module 12V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113140
Manufacturer: TRACOPOWER
3754 pcs in 5-15 days
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100 pcs+
10,80 €
10,20 €
9,64 €
9,08 €
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TSRN 1-24120A TRACOPOWER  
TSRN 1-24120A

DC/DC modul 12V/1000mA 90° SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113149
Manufacturer: TRACOPOWER
383 pcs in 5-15 days
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10,50 €
9,98 €
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TSRN 1-2415 TRACOPOWER  
TSRN 1-2415

DC/DC module 1,5V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113133
Manufacturer: TRACOPOWER
176 pcs in 5-15 days
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10,50 €
9,98 €
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8,88 €
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TSRN 1-24150A TRACOPOWER  
TSRN 1-24150A

DC/DC modul 15V/1000mA 90° SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113150
Manufacturer: TRACOPOWER
708 pcs in 5-15 days
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20 pcs+
50 pcs+
100 pcs+
11,30 €
10,80 €
10,30 €
9,86 €
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TSRN 1-2415A TRACOPOWER  
TSRN 1-2415A

DC/DC modul 1,5V/1000mA 90° SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113142
Manufacturer: TRACOPOWER
10 pcs+
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10,50 €
9,98 €
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8,88 €
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TSRN 1-2418 TRACOPOWER  
TSRN 1-2418

DC/DC module 1,8V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113134
Manufacturer: TRACOPOWER
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9,98 €
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TSRN 1-2418A TRACOPOWER  
TSRN 1-2418A

DC/DC modul 1,8V/1000mA 90° SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113143
Manufacturer: TRACOPOWER
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9,98 €
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TSRN 1-2425 TRACOPOWER  
TSRN 1-2425

DC/DC module 2,5V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113135
Manufacturer: TRACOPOWER
97 pcs in 5-15 days
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TSRN 1-2425A TRACOPOWER  
TSRN 1-2425A

DC/DC modul 2,5V/1000mA 90° SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113144
Manufacturer: TRACOPOWER
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10,50 €
9,98 €
9,43 €
8,88 €
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TSRN 1-2433A TRACOPOWER  
TSRN 1-2433A

DC/DC modul 3,3V/1000mA 90° SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113145
Manufacturer: TRACOPOWER
470 pcs in 5-15 days
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10,20 €
9,81 €
9,40 €
9,00 €
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TSRN 1-2450A TRACOPOWER  
TSRN 1-2450A

DC/DC modul 5,0V/1000mA 90° SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113146
Manufacturer: TRACOPOWER
300 pcs in 5-15 days
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10,20 €
9,81 €
9,40 €
9,00 €
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TSRN 1-2465 TRACOPOWER  
TSRN 1-2465

DC/DC module 6,5V/1000mA 90° SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113138
Manufacturer: TRACOPOWER
197 pcs in 5-15 days
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10,50 €
9,98 €
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8,88 €
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TSRN 1-2465A TRACOPOWER  
TSRN 1-2465A

DC/DC modul 6,5V/1000mA 90° SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113147
Manufacturer: TRACOPOWER
100 pcs in 5-15 days
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20 pcs+
50 pcs+
100 pcs+
10,50 €
9,98 €
9,43 €
8,88 €
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TSRN 1-2490 TRACOPOWER  
TSRN 1-2490

DC/DC module 9,0V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113139
Manufacturer: TRACOPOWER
1170 pcs in 5-15 days
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TSRN 1-2490A TRACOPOWER  
TSRN 1-2490A

DC/DC modul 9,0V/1000mA 90° SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113148
Manufacturer: TRACOPOWER
90 pcs in 5-15 days
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50 pcs+
100 pcs+
10,50 €
9,98 €
9,43 €
8,88 €
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TSRN 1-2490SM TRACOPOWER  
TSRN 1-2490SM

DC/DC module 10,5-42V/4,5-12,6V/1000mA SMD

Non-isolated Step-down Regulators (POL)

Ord. No.: 112938
Manufacturer: TRACOPOWER
1635 pcs in 5-15 days
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20 pcs+
50 pcs+
100 pcs+
10,50 €
9,98 €
9,43 €
8,88 €
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