1N4989,DIODE ZENER 200V 5W AXIAL
1N4989US,DIODE ZENER 200V 5W D5B
1N4990,DIODE ZENER
1N4990US,ZENER DIODE
1N4991,DIODE ZENER
1N4991.TR,240V ZENER 5W TR
1N4991US,DIODE ZENER
1N4991US.TR,240V ZENER 5W SM TR