# What is this 9609SB?

This IC is from a power supply for an LED domestic light

This appears to be a 7 legged IC, at least it doesn’t seem to have had the 7th leg snipped.

The markings seem to be

9609SB
G8EMOS


I was looking for the same IC and found the WS9002. I've checked the pin out and it is correct.

Use Google to help with the datasheet: https://datasheetspdf.com/pdf-file/1351316/Winsemi/WS9002/1

Please, reply if you find any replacement or a easy way of dimming it.

Check this out pin out. Looks similar to the part reference in the question.

This application circuit has similar components per the question. Example Pin 4 SW is connected to diode.

Here is link to the datasheet.

https://www.neumueller.com/datenblatt/macroblock/MBI6655%20Datenblatt%20-%20Datasheet.pdf

Additionally MB10 looks like a bridge rectifier. These should help identify the components.

• Similar, but not quite, as pin 8 of the IC in my PCB is used (it's connected to two resistors). I will add a schematic of the PCB, it will probably help. Aug 31 '20 at 15:08