The SCS109 from Vanguard Electronics is a Space Qualified Power Transformer with an inductance of 86 mH. This transformer has a peak withstanding current of 20 A and a direct current resistance of 6 Ohms. It has a turns ratio of 1:200 and requires a primary voltage of 288 V. The SCS109 is built to meet MIL-STD-981 specifications and features tin-lead terminations and welded internal connections. It has a minimum insulation resistance of 10K MOhms and a dielectric withstanding voltage of 500 Vac. The transformer has an SMD mounting type and measures 0.535 × 0.535 × 0.31 inches.