Isolated DC-DC Converters

Isolated DC-DC converters convert a source of direct current (DC) from one voltage to another, and contain an electrical barrier between the input and output to improve safety. They are suitable for a range of applications, including telecommunication equipment, industrial equipment and consumer electronics.


What are isolated DC-DC converters used for?

Isolated DC-DC converters are used within equipment and devices containing different circuits or sub-circuits where it is necessary to convert the voltage of a DC supply from one level to another. For converting AC to DC, an AC-DC converter would be used.


Types of isolated DC-DC converters

Isolated DC-DC converters come in a wide range of input and output voltages and a variety of mountings, such as:

  • Chassis mount
  • DIN Rail mount
  • Flange mount
  • PCB mount
  • Rack mount
  • Surface mount
  • Through hole

The advantages of isolated DC-DC converters:

  • Meet international safety standards and regulations.
  • Electrical isolation provides additional safety to personnel in case of internal failure.
  • Wide range of voltage conversion with high efficiency.

Certain models are railway- and medical-approved.


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Description Price Output Voltage Input Voltage Range Output Voltage Adjustment Range Input Voltage Nominal Power Rating Isolation Voltage Output Current Mounting Type Number of Outputs Package Efficiency Medical Approved Minimum Temperature Railway Approved
RS Stock No. 906-8566
Mfr. Part No.TDL 2-2422
BrandTRACOPOWER
SGD33.24
Each
units
±12V dc 18 → 36 V dc - 24 V dc 2W 1.5kV dc ±83mA Through Hole 1 DIP 86% - -40°C -
RS Stock No. 161-6664
Mfr. Part No.TDL 2-2422
BrandTRACOPOWER
SGD279.40
1 Tube of 10
Tube(s)
±12V dc 18 → 36 V dc - 24 V dc 2W 1.5kV dc ±83mA Through Hole 1 DIP 86% - -40°C -
RS Stock No. 161-6683
Mfr. Part No.TDL 3-1212
BrandTRACOPOWER
SGD308.31
1 Tube of 10
Tube(s)
12V dc 9 → 18 V dc - 12 V dc 3W 1.5kV dc 250mA Through Hole 1 DIP 87% - -40°C -
RS Stock No. 906-8513
Mfr. Part No.TDL 2-0523
BrandTRACOPOWER
SGD33.24
Each
units
±15V dc 4.5 → 10 V dc - 5 V dc 2W 1.5kV dc ±67mA Through Hole 1 DIP 85% - -40°C -
RS Stock No. 906-8623
Mfr. Part No.TDL 3-1212
BrandTRACOPOWER
SGD33.86
Each
units
12V dc 9 → 18 V dc - 12 V dc 3W 1.5kV dc 250mA Through Hole 1 DIP 87% - -40°C -
RS Stock No. 166-6091
Mfr. Part No.TDN 3-1221WI
BrandTRACOPOWER
SGD345.16
1 Tube of 10
Tube(s)
±5V dc 4.5 → 18 V dc ±4.95 V dc, ±5.05 V dc 12 V dc 3W 1.5kV dc ±300mA Through Hole 2 DIP 80% - -40°C -
RS Stock No. 906-8588
Mfr. Part No.TDL 2-4821
BrandTRACOPOWER
SGD33.24
Each
units
±5V dc 36 → 75 V dc - 48 V dc 2W 1.5kV dc ±200mA Through Hole 1 DIP 82% - -40°C -
RS Stock No. 899-8233
Mfr. Part No.TDN 3-1221WI
BrandTRACOPOWER
SGD36.53
Each
units
±5V dc 4.5 → 18 V dc ±4.95 V dc, ±5.05 V dc 12 V dc 3W 1.5kV dc ±300mA Through Hole 2 DIP 80% - -40°C -
RS Stock No. 161-6647
Mfr. Part No.TDL 2-0523
BrandTRACOPOWER
SGD314.19
1 Tube of 10
Tube(s)
±15V dc 4.5 → 10 V dc - 5 V dc 2W 1.5kV dc ±67mA Through Hole 1 DIP 85% - -40°C -
RS Stock No. 161-6671
Mfr. Part No.TDL 2-4821
BrandTRACOPOWER
SGD269.50
1 Tube of 10
Tube(s)
±5V dc 36 → 75 V dc - 48 V dc 2W 1.5kV dc ±200mA Through Hole 1 DIP 82% - -40°C -
RS Stock No. 906-8581
Mfr. Part No.TDL 2-4822
BrandTRACOPOWER
SGD33.24
Each
units
±12V dc 36 → 75 V dc - 48 V dc 2W 1.5kV dc ±83mA Through Hole 1 DIP 84% - -40°C -
RS Stock No. 899-8289
Mfr. Part No.TDN 3-4813WI
BrandTRACOPOWER
SGD35.76
Each
units
15V dc 18 → 75 V dc ±1% 48 V dc 3W 1.5kV dc 200mA Through Hole 1 DIP 83% - -40°C -
RS Stock No. 906-8585
Mfr. Part No.TDL 2-4823
BrandTRACOPOWER
SGD33.24
Each
units
±15V dc 36 → 75 V dc - 48 V dc 2W 1.5kV dc ±67mA Through Hole 1 DIP 84% - -40°C -
RS Stock No. 166-6090
Mfr. Part No.TDN 3-1212WI
BrandTRACOPOWER
SGD303.51
1 Tube of 10
Tube(s)
12V dc 4.5 → 18 V dc ±1% 12 V dc 3W 1.5kV dc 250mA Through Hole 1 DIP 83% - -40°C -
RS Stock No. 913-9205
Mfr. Part No.TDN 5-0911WI
BrandTRACOPOWER
SGD41.55
Each
units
5V dc 4.5 → 12 V dc - 9 V dc 5W 1.5kV dc 1A Through Hole 1 4-Pin DIP - - -40°C -
RS Stock No. 161-6689
Mfr. Part No.TDL 3-2413
BrandTRACOPOWER
SGD308.31
1 Tube of 10
Tube(s)
15V dc 18 → 36 V dc - 24 V dc 3W 1.5kV dc 200mA Through Hole 1 DIP 87% - -40°C -
RS Stock No. 906-8632
Mfr. Part No.TDL 3-1223
BrandTRACOPOWER
SGD37.53
Each
units
±15V dc 9 → 18 V dc - 12 V dc 3W 1.5kV dc ±100mA Through Hole 1 DIP 87% - -40°C -
RS Stock No. 899-8220
Mfr. Part No.TDN 3-1210WI
BrandTRACOPOWER
SGD34.81
Each
units
3.3V dc 4.5 → 18 V dc ±1% 12 V dc 3W 1.5kV dc 700mA Through Hole 1 DIP 76% - -40°C -
RS Stock No. 906-8614
Mfr. Part No.TDL 3-1211
BrandTRACOPOWER
SGD33.86
Each
units
5V dc 9 → 18 V dc - 12 V dc 3W 1.5kV dc 600mA Through Hole 1 DIP 83% - -40°C -
RS Stock No. 906-8529
Mfr. Part No.TDL 2-1212
BrandTRACOPOWER
SGD30.58
Each
units
12V dc 9 → 18 V dc - 12 V dc 2W 1.5kV dc 167mA Through Hole 1 DIP 87% - -40°C -