This part is a kind of semiconductor called PC44PQ35-35Z-12.

Function of this product has Cores.

Manufacturers : TDK

Image and pinout :

Some of the text within the PDF file :

(39/71) PQ Series PQ20/16 Cores Parameter Core factor Effective magnetic path length Effective cross-sectional area Effective core volume Cross-secti onal center pole area Minimum cross-sectional center pole area Cross-secti onal winding area of core Weight (approx.) C1 em Ae Ve Acp Acp min. Acw mm–1 m mm2 mm3 mm2 mm2 mm2 g 0.605 37.4 62 2310 60.8 58.1 47.4 13 ø8.8 ± 0.2 10.3 ± 0.3 16.2 ± 0.2 14.0 ± 0.4 Dimensions in mm 20.5 ± 0.4 18.0 ± 0.4 12.0 – 0 Part No. PC44PQ20/16Z-12 ∗ Coil: AL-value (nH/N2) 3880±25% (1kHz, 0.5mA)∗ 5210 min. (100kHz, 200mT) Core loss (W) at 100°C 100kHz, 200mT 0.84 max. Calculated output power (forward converter mode) 70W (100kHz) ø0.35 2UEW 100Ts NI limit vs. AL-value for PC44PQ20/16 gapped core (Typical) 10 3 Temperature: 100˚C AL [ ... ]

PC44PQ35-35Z-12 PDF Datasheet Download