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The SF1890 is an AC/DC wall mount adapter manufactured by Tri-Mag, LLC. It provides a fixed 9V output at up to 2A, delivering 18W of power. The unit accepts an input voltage range of 90 to 264 VAC and features a polarized barrel connector with 2.1mm inner diameter and 5.5mm outer diameter. Designed for ITE commercial applications, it operates within a temperature range of 0°C to 40°C. The adapter meets VI efficiency standards and holds cUL, FCC, and UL certifications under standard 60950-1.
Verify the specific part number suffix against official Tri-Mag documentation to confirm pinout and certification status. Note that this component may be obsolete; check current availability through authorized distributors. Ensure the replacement adapter matches the original polarity, voltage, current rating, and connector dimensions to prevent damage to the connected equipment.
Select this adapter only if the target device requires a 9V DC supply with a minimum 2A current capacity. Confirm compatibility with the required input voltage range of 90-264 VAC. Verify that the physical dimensions and wall-mount style fit the installation environment. Ensure the application falls within the specified operating temperature range of 0°C to 40°C.
The SF1890 belongs to the Tri-Mag ICM18 series of 18W AC/DC adapters. This series is designed for commercial ITE applications requiring reliable external power conversion. Tri-Mag, LLC, now a subsidiary of Curtis Industries, manufactures these units to meet specific international safety and efficiency standards for business and industrial environments.
The L6R20-090 is listed as a similar substitute part by Tri-Mag, LLC. Verify electrical specifications and connector compatibility before substitution.