« previous next »
Pages: [1]   Go Down

Author Topic: Is this a signal diode or a zener?  (Read 500 times)

0 Members and 1 Guest are viewing this topic.

Offline NivagSwerdnaTopic starter

  • Super Contributor
  • ***
  • Posts: 2495
  • Country: gb
Is this a signal diode or a zener?
« on: September 16, 2021, 04:26:07 pm »
Could this be a signal diode?

Thanks
Logged
 

Offline Manul

  • Super Contributor
  • ***
  • Posts: 1108
  • Country: lt
Re: Is this a signal diode or a zener?
« Reply #1 on: September 16, 2021, 04:35:35 pm »
It is likely 1N4148, is there also "41" written on the other side?
Logged
 

Offline NivagSwerdnaTopic starter

  • Super Contributor
  • ***
  • Posts: 2495
  • Country: gb
Re: Is this a signal diode or a zener?
« Reply #2 on: September 16, 2021, 05:01:40 pm »
Stupidly I put it back before taking photos of the other side... but at an oblique angle...



Looks like what I thought were just lines could be a 41!
Logged
 

Offline NivagSwerdnaTopic starter

  • Super Contributor
  • ***
  • Posts: 2495
  • Country: gb
Re: Is this a signal diode or a zener?
« Reply #3 on: September 16, 2021, 05:04:28 pm »
What about this one...

Looks like 3V9... so that would be a zener even though it looks similar?  The board marking is a bit ambiguous due to the coincidence with the square?
Logged
 

Online Gyro

  • Super Contributor
  • ***
  • Posts: 9475
  • Country: gb
Re: Is this a signal diode or a zener?
« Reply #4 on: September 16, 2021, 05:29:46 pm »
Yes, a 1N4148 and a 3V9 400mW zener.
Logged
Best Regards, Chris
 
The following users thanked this post: tooki, NivagSwerdna
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee