This part is a kind of semiconductor called MDS100.

Function of this product has 3-Phases Rectification Bridge Modules.

Manufacturers : Techsem

Image and pinout :

Some of the text within the PDF file :

www.DataSheet.co.kr MDS100 Three Phases Rectification Bridge Modules Features： n n n n n n Isolated mounting base 2500V~ Pressure contact technology with Increased power cycling capability Space and weight savings Inverter Inductive heating Chopper IO VRRM IFSM I2t 100 A 600~1600 V 1.2 A×103 7.2 A2 S*103 Typical Applications SYMBOL CHARACTERISTIC TEST CONDITIONS EM Tj(°C) VALUE Type Min Max 100 150 150 600 1600 8 150 1.2 150 7.2 0.8 150 4.5 25 1.3 0.2 0.07 2500 4 6 -40 200 220F5/218F5/219F5 125 UNIT IO DC output current Three-phase full wave rectifying circuit, TC=100°C VRRM tp=10ms VRSM= VRRM+200V at VRRM A VRRM IRRM IFSM It VFO rF VFM Rth(j-c) Rth(c-h) Viso Fm 2 Repetitive peak reverse voltage Repetitive peak current Surge forward current I T for fusing coordination T [ ... ]

MDS100 PDF Datasheet Download