Hi Sujatha,
Thanks for your reply. I'm sorry, but I am still a bit confused. I find several vendors selling this part number (2M728) online, many even indicate it is for my X200. But all these vendors list it as 4.8 volts. You said it is 6 volts. Either several vendors are all wrong, or someone has given you incorrect information. I apologize for the inconvenience, but can you please double-check the voltage of this part?
Thanks again for your help!