Recognize these inrush current limiting devices?

  • Thread starter Thread starter phyzguy
  • Start date Start date
  • Tags Tags
    Board Circuit
Click For Summary
The discussion centers on identifying a failed inrush current limiting device on a circuit board, specifically one marked with a logo resembling a superimposed letter V. Users suggest it may be a transient voltage suppression (TVS) diode or a resettable fuse, with some speculating that the number "103" could indicate a power rating of 1000 watts. A Google Images search has yielded results pointing to a PTC resettable fuse, and further investigation reveals the double-V logo is associated with a company acquired by Littelfuse. The thread emphasizes the need for assistance in recognizing these components.
phyzguy
Science Advisor
Messages
5,288
Reaction score
2,355
TL;DR
Help me recognize these inrush current limiting devices
I have a circuit board, and one of these inrush current limiting devices (yellow arrows) has failed. Does anyone recognize them? Failing that, does anyone recognize the logo that looks like a letter V and an upside down V superimposed? I have searched in several places, but have been unable to identify them.
CSAT3B_board.png
 
Engineering news on Phys.org
phyzguy said:
TL;DR Summary: Help me recognize these inrush current limiting devices

I have searched in several places, but have been unable to identify them
Perhaps clamping diode ie a TVS ( transient voltage suppression ) .
the 103 could mean 1000 watts but that's a guess.
 
  • Like
  • Informative
Likes cnh1995, phyzguy, Borek and 2 others
Hello! I want to generate an RF magnetic field at variable frequencies (from 1 to 20 MHz) using this amplifier: https://www.minicircuits.com/WebStore/dashboard.html?model=LZY-22%2B, by passing current through a loop of current (assume the inductive resistance is negligible). How should I proceed in practice? Can i directly connect the loop to the RF amplifier? Should I add a 50 Ohm in series? Thank you!

Similar threads

Replies
21
Views
7K
  • · Replies 12 ·
Replies
12
Views
6K
Replies
7
Views
2K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 6 ·
Replies
6
Views
1K
  • · Replies 11 ·
Replies
11
Views
2K
Replies
1
Views
1K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K