Diotec Semiconductor. 1N5381B Zenerova dióda. Uz = 130V, Ptot 5W,  

Case type: DO201 PLASTIC 
Rozmery ca.: Ø 4,5 x 7,5mm 
Tolerancia: ±5% 
Montáž: THT 
Balenie: voľne 
Iné označenie: ZD 130V/5W 

Silicon planar power Zener diodes.
For use in stabilizing and clipping circuits with high power rating.
Aplications for Voltage stabilization.