Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Help identifying component

Status
Not open for further replies.

PAULEL88

New Member
Trying to identify this component...any help out there?
component1.jpg
 
It has no designation but is connected between the 24V and 0V of the power supply on a hydraulic pump controller. There is a dead short between 0V and 24V due to this component, so thinking it's a Schottky diode.. just need to know what to replace it with.
 
I would imagine it's just a reverse protection diode?, so goes short if the supply is connected the wrong way, and blows the fuse. Any similar shape shape and size of diode should be fine, it just has to be able to withstand the voltage (not difficult on 24V) and have a high enough current rating (I imagine most diodes of that size will be fine). What value fuse feeds the board?, presumably that blew?.

Also, does the board work perfectly without it? - making absolutely 100% sure NOT to connect the power the wrong way - as it has no effect on the operation of the board.
 
It could be a TVS diode, which is a Transient Voltage Suppression diode. It behaves much like a zener and clamps voltages that are too large. If a single direction TVS is used, that will also act as a reverse protection diode by shorting out reverse voltages above about 0.6 V.

TVS diodes normally fail short circuit when they have been absorbing too much energy.
 
Status
Not open for further replies.

Latest threads

New Articles From Microcontroller Tips

Back
Top