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The Diotec Semiconductor 15SQ045-3G is a third-generation Schottky barrier rectifier diode designed for high-efficiency power conversion. It features an average forward current (IFAV) of 15 A and a repetitive peak reverse voltage (VRRM) of 45 V. The device utilizes a compact Ø 5.4 x 7.5 mm package, which is smaller than standard industry dimensions. Key electrical characteristics include a maximum forward voltage (VF) of less than 0.43 V at 5 A and 25°C, with a typical value of 0.27 V. Peak forward surge currents reach 260 A at 50 Hz and 290 A at 60 Hz. The component supports a junction temperature range from -50°C to +150°C in DC mode, with a maximum rating of 200°C.
Verify the specific ordering suffix when purchasing. The base model 15SQ045-3G represents the commercial/industrial grade standard version. Suffixes such as -Q or -AQ indicate AEC-Q101 compliance or qualification respectively. Confirm that the required automotive or industrial reliability grade matches the exact part number suffix before finalizing procurement orders.
Select this component for applications requiring low forward voltage drop and high surge current handling within a compact footprint. Ensure the thermal design accounts for the typical thermal resistance values provided in the datasheet. Verify that the operating ambient temperature allows for the full 15 A rating, as derating may be necessary at higher temperatures.
This component belongs to Diotec's third-generation Schottky Barrier Rectifier Diodes series. It is manufactured by Diotec Semiconductor AG, a company specializing in discrete semiconductors. The product is classified under HS Code 85411000 and is intended for standard commercial and industrial applications requiring ordinary reliability levels.
No public confirmed substitute part numbers are documented in the source material.