Hi all,
Probably a v simple one, I was ordering parts last night and needed some 1n4148 diodes, I'm designing a new pcb and thought I'd use surface mount diodes instead of through holes to save space. One of the diodes is a half wave rectifier for a FDX-B rfid reader chip, the other four are used for 'diode feedback'. I noticed there are different types of 1n4148's? The through hole ones are signal diodes and some of the surface mount are down as rectifier diodes. This made me wonder a. which ones I should chose? b. could a different 'type' of diode improve the perfomance of my circiut? I picked the 1n4148's as thats what was on the data sheet, but only picked a signal diode type as that was the one that would plug in my breadboard! The function of the diode feedback is somthing I've yet to figure out, I've asked here before but know one really seems to know. I've no formal training so this may seem basic, I dont know much about diodes! Any advice would be welcome.
Thanks Geoff
Probably a v simple one, I was ordering parts last night and needed some 1n4148 diodes, I'm designing a new pcb and thought I'd use surface mount diodes instead of through holes to save space. One of the diodes is a half wave rectifier for a FDX-B rfid reader chip, the other four are used for 'diode feedback'. I noticed there are different types of 1n4148's? The through hole ones are signal diodes and some of the surface mount are down as rectifier diodes. This made me wonder a. which ones I should chose? b. could a different 'type' of diode improve the perfomance of my circiut? I picked the 1n4148's as thats what was on the data sheet, but only picked a signal diode type as that was the one that would plug in my breadboard! The function of the diode feedback is somthing I've yet to figure out, I've asked here before but know one really seems to know. I've no formal training so this may seem basic, I dont know much about diodes! Any advice would be welcome.
Thanks Geoff