This part is a kind of semiconductor called 3H3.

Function of this product has Material Specification.

Manufacturers : Ferroxcube

Image and pinout :

Some of the text within the PDF file :

FERROXCUBE DATA SHEET 3H3 Material specification Supersedes data of September 2004 2008 Sep 01 Ferroxcube Material specification 3H3 SPECIFICATIONS A low frequency filter material optimized for frequencies up to 0.2 MHz. CONDITIONS µi B 25 °C; 10 kHz; 1200 A/ m 100 °C; 10 kHz; 1200 A/ m tanδ/µi ηB DF αF 25 °C; 0.25 mT; 30 kHz 25 °C; 0.25 mT; 100 kHz 25 °C; 100 kHz; 1.5 to 3 mT 0.25 mT; 10 kHz: 25 °C 40 °C ≤ 10 kHz; 0.25 mT; 5 to 25 °C 25 to 55 °C 25 to 70 °C DC; 25 °C 10 4 handbook, halfpage µ's , µ'' s 10 3 µs ' µ'' s MBW274 3H3 3H3 VALUE ≈ 360 ≈ 270 ≤ 1.6 × 10− 6 ≤ 2.5 × 10− 6 ≤ 0.6 × 10− 3 ≤ 3 × 10−6 ≤ 3 × 10−6 UNIT mT 25 °C; ≤ 10 kHz; 0.25 mT 2000 ±20% 10 2 T− 1 10 10 1 1 10 f (MHz) 10 2 K− [ ... ]

3H3 PDF Datasheet Download