This part is a kind of semiconductor called FMB-34M.

Function of this product has Schottky Barrier Diodes 40V.

Manufacturers : Sanken electric

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Some of the text within the PDF file :

Schottky Barrier Diodes Absolute Maximum Ratings Parameter Type No. VRM (V) I F (AV) (A) IFSM (A) 50Hz Half-cycle Sinewave Single Shot 40V Electrical Characteristics (Ta = 25°C) Others Rth ( j-c) (°C/ W) Mass Fig. (g) IF (A) IR (mA) VR = VRM IR (H) (mA) VR=VRM, Ta=100°C Tj (°C) Tstg (°C) max per element VF (V) trr (ns) IF /IRP (mA) max per element max per element FMB-24 FMB-24M FMB-24L FMB-24H FMB-34S FMB-34 FMB-34M 40 4.0 6.0 50 60 0.55 2.0 3.0 5.0 5.00 35 4.0 7.5 0.58 0.55 6.0 7.5 15.0 7.50 5.00 10.00 20.00 50 35 65 100 2.0 5.5 B 2.1 A 10.0 15.0 12.0 15.0 30.0 100 75 150 300 –40 to +150 100 100/100 FMB-24 5 TcIF(AV) Derating t /T = 1/2 D.C. VF IF Characteristics (Typical) 20 10 20 10 VR IR Characteristics (Typical) Ta = 125ºC 100ºC 1 60ºC 0.1 I FMS [ ... ]

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