This Product Selection Guide contains information to help select products in the Isolation Transformers and Autotransformers, Step Up, Step Down category on DigiKey.com
Products in this family are used in conjunction with AC utility power, for safety or functional reasons. Isolation transformers are used to transfer electrical power without the use of a galvanic electrical connection, and are commonly used in repair or product development environments to mitigate shock hazards. Autotransformers are used for scaling the voltage of an available source up or down to meet a functional requirement when isolation between input and output is not required.
SelectionCharacteristics
Type: Refers to the classification of the Isolation Transformer or Autotransformer based on intended application or functionality.
Voltage - Primary: Indicates nominal AC input voltages with which a device is designed for use: multiple values indicate different connection options, allowing production of the listed secondary voltages from any of the listed primary voltages.
Voltage - Secondary: Nominal AC RMS output voltage(s) available from the device’s outputs when the nominal primary voltage is applied to the inputs.
Power - Max: Typically this represents the maximum power rating to which a device will meet its given specifications. Exceeding this power rating may damage the device and other system components.
1st Connector: Indicates the style/format of the connector used to supply power to a device.
2nd Connector: Indicates the style/form of connector through which a device supplies power.
ProductExamples
| MFR PART # | 171E |
|---|---|
| DIGI-KEY PART # | HM1560-ND |
| MANUFACTURER | Hammond Manufacturing |
| DESCRIPTION | TRANSFM ISOL 115 TO 115VAC 500VA |
| DATASHEET | Click Here |
| MFR PART # | N-51X |
|---|---|
| DIGI-KEY PART # | 237-1859-ND |
| MANUFACTURER | Triad Magnetics |
| DESCRIPTION | TRANSFORMER ISOL |
| DATASHEET | Click Here |
| MFR PART # | MD-250-U |
|---|---|
| DIGI-KEY PART # | 237-2077-ND |
| MANUFACTURER | Triad Magnetics |
| DESCRIPTION | TRANSFORMER ISOLATION MEDICAL |
| DATASHEET | Click Here |
| MFR PART # | 176G |
|---|---|
| DIGI-KEY PART # | HM1563-ND |
| MANUFACTURER | Hammond Manufacturing |
| DESCRIPTION | TRANSFORMER AUTO STEP UP/PLG |
| DATASHEET | Click Here |
| MFR PART # | N-1X |
|---|---|
| DIGI-KEY PART # | 237-1849-ND |
| MANUFACTURER | Triad Magnetics |
| DESCRIPTION | AUTOTRANSFORMER NON-ISOL 50 VA |
| DATASHEET | Click Here |
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MediaLinks
Videos
Signal Transformer Ecotran Series
Triad Magnetics MD Series Isolated AC Power Source
TechForum
Understanding the Five Transformer Types