This part is a kind of semiconductor called 61FC4.

Function of this product has EA61FC4.

Manufacturers : Nihon Inter Electronics

Image and pinout :

Some of the text within the PDF file :

FRD Type : EA6 EA61FC4 1FC4 OUTLINE DRAWING FEATURES * TO-251AA Case * Ultra – Fast Recovery * Low Forward Voltage drop * Low Power Loss * High Surge Capability * 200 Volts thru 600 Volts Types Available Maximum Ratings Rating Repetitive Peak Reverse Voltage Non-repetitive Peak Reverse Voltage P.C.Board Average Rectified mounted * Output Current RMS Forward Current Surge Forward Current Operating JunctionTemperature Range Storage Temperature Range Symbol VRRM VRSM IO IF(RMS) IFSM Tjw Tstg 45 1.7 6.0 Ta=26°C Tc=109°C Approx Net Weight:0.35g EA61FC4 400 440 50Hz Full Sine Wave Resistive Load Unit V V A A A °C °C 6.66 50Hz Full Sine Wave,1cycle, Non-repetitive - 40 to + 150 - 40 to + 150 Electrical • Thermal Characteristics Characteristics Peak Reverse Cur [ ... ]

61FC4 PDF Datasheet Download