Which diode is this? and resistor?

Passives Resistors
,
1

BOSE SOLO SOUND SISTEM II
-which black component is this? placed, before gate of F60N IMG-3977-1-11zon hosted at ImgBB — ImgBB.

2

Greetings Gigioooo8,
Welcome.

The first photo marked 40C. If following marking code standard EIA-96 40c marking stands for 25.5K ohm 1% tolerance. This should help with identifying a replacement resistor. You may need to also measure the L x W dimensions to filter options -
Chip Resistor - Surface Mount

S3 Marking does come up as a diode marking for part number 1N914BWS
Description DIODE STANDARD 75V 150MA SOD323F

Datasheet FAIR-S-A0000573112-1.pdf

3

thanks for reply, the post made me upload only 2 photos, the unknown component in the first photo, is the black one below the resistor, without footprint.

  • thanks for S3 recognition :slight_smile: , my doubt was, in the second photo, about the resistor above S3 diode
  • thanks!
4

are u sure S3 is diode 1N914BWS?
the package seems a sod123 not 323

5

Hello Gigioooo8,
Thank you for contacting Digikey Technical Support.
Digikey Tech support only can offer suggestions.
It is up to the customer to go through datasheet and decide whether the suggestions will work for them.

6

Hi gigioooo8

If you’re pretty sure it’s a SOD-123, then it may well be an SD101CW. A couple of our vendors use that marking for the SD101CW.

Regarding the little black part in your first image, my best guess is a resistor, but in a package too small to mark. That doesn’t help you find a replacement, however. Your best bet might be to get hold of schematics and figure it out from that.