Zener Diode 5231B replacement?

[ronniedee]

got one other item (Zener Diode 5231B)  that can;t seem to find a replacement for? 

[thelonious]

1N5231B. Mouser has them. http://www.mouser.com/Semiconductors/Discrete-Semiconductors/Diodes-Rectifiers/Zener-Diodes/_/N-ax1mhZscv7?P=1z0z63x&Keyword=5231B&FS=True

Any 5.1V, 1/2W zener should do. Smallbear has a 1W version - http://smallbear-electronics.mybigcommerce.com/diode-zener-1n4733a/ - which is a 1N4733A