FSFR1800XS. Assembly/installation: PCB through-hole mounting. Dimensions: 26.2x10.7x3.4mm. Frequency: 100kHz. Function: Power Switch for Half-Bridge Resonant Converter. Housing (according to data sheet): SIP-9. Housing: SIP / SIL. ID (T=25°C): 7A. Id(imp): 23A. Note: output frequency 100kHz. Number of terminals: 10. On-resistance Rds On: 0.95 Ohms. Operating temperature: -40...+130°C. Pd (Power Dissipation, Max): 120W. RoHS: yes. Spec info: High-Side Floating Supply Voltage. Supply voltage: 25V. Voltage Vds(max): 500V. Original product from manufacturer: Fairchild. Quantity in stock updated on 13/11/2025, 12:23