I was looking through some components I got in a kit a few years ago, and I found what I think is an op-amp. Unfortunately, any documentation for the kit is long gone. (Although I don't think it was particularly useful to begin with) I would like to identify the component, but I can't seem to find any documentation online from the numbers on the chip. The logo loos like a "yw" but I can't find that anywhere either.

I got this part from a "Minitronics Survival Guts with 60+ components" package that was in a "Make: Raspberry Pi Starter Kit" from radioshack.

The text on the chip, as far as I can make out, reads:

UTC358D (The Logo) P3M6DC

on the bottom of the chip, there is the code "J20" centered in a small circle.

Any Help is appreciated! Thank You!

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  • 2
    \$\begingroup\$ ALmost certainly an LM358 dual op amp, with a UTC part no. \$\endgroup\$
    – user16324
    Jul 15, 2020 at 20:15
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    \$\begingroup\$ Have you tried googling the part number? datasheetspdf.com/pdf-file/774671/UTC/UTC358/1 \$\endgroup\$
    – Hilmar
    Jul 15, 2020 at 20:17
  • 1
    \$\begingroup\$ I did, but I guess I did a bad job of it... Thanks for finding that! \$\endgroup\$ Jul 15, 2020 at 20:30

1 Answer 1


hello it seems to be a dual operational amplifier IC

i hope this helps

  • 2
    \$\begingroup\$ +1 Specifically, a clone of the National Semiconductor (now TI) LM358 made in China by Hangzhou Youwang Electronics. \$\endgroup\$ Jul 15, 2020 at 20:53

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