Jump to content

Banner.jpg.b89429c566825f6ab32bcafbada449c9.jpg

Surface Mount IC Pin 1 identification


symmetal

Recommended Posts

Making my first surface mount PCB and the TSOT23-8 IC has these markings only. There are no beveled edges or cut-outs/indents to indicate pin 1 and the manufacturer states a dot is used. As you can see it's tiny 😬, with 0.65mm pin spacing and I can only assume the arrow indicates pin 1. Web searches haven't helped, so before I attempt to hand solder it on the board it would be nice to know for sure. If anyone can confirm it's pin 1 it would be helpful. 😀

It's a LTC4365, overvoltage, undervoltage and reverse supply protection controller and thought it's worth checking it out as protection for an imaging setup against faulty supplies which could be costly. It's only available in this package size.

IMG_2833.jpg.f4d7933ff034abc433592d9179d7f6d7.jpg

SOT-23.png.71be44dedc7da62f8a987747bd0760ac.png

Alan

Link to comment
Share on other sites

My guess - it is the little arrow under the "L"

If you turn your photo upside down then the lettering on the diagram is oriented the same and the little arrow is in the same position as the dot.

Edited by Lorstin
Further explanation
  • Like 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.