The iPhone 5 launch on Wednesday, Sept. 12, is sure to be the most important event for tech investors this year. The Motley Fool will be hosting a live chat where our top tech analysts will answer your questions and break down what the announcement means for Apple and tech investors everywhere. Be sure to swing by Fool.com at 12:45 p.m. ET tomorrow for all your coverage of Apple's next big announcement.

Sept 12.

That's the date the tech world will be watching as Apple (Nasdaq: AAPL) unveils its iPhone 5 to the world. That puts us at T-minus one day to the event, so investors need to make sure they're fully prepared for the opportunities that lie within.

Source: The Loop.

This year's model will put up massive unit sales figures. Some estimates range as high as 250 million units throughout the product's life cycle, which would more than double lifetime unit sales to date. For numerous component suppliers, that spells profits as they ride on Apple's coattails to riches. Leading up to the event, I'm going to outline a handful of companies that I think will be winners of the iPhone 5.

Touchscreen microcontroller: Texas Instruments
The touchscreen microcontroller has always gone to Texas Instruments (Nasdaq: TXN), holding off smaller rivals such as Atmel or Cypress Semiconductor (NYSE: CY). Apple taps Cypress for touchscreen microcontrollers in other products, including MacBooks and the iPod Nano. With that component being fairly commoditized, I see little reason for Apple to switch away from TI.

If TI is expected to score the same seat it has occupied for the past several years, why would I only consider it a "sorta" winner? The answer to that question is within the comprehensive iPhone 5 report I've put together as a bonus for subscribers of The Motley Fool's premium research service all on Apple. The complete report is available at no additional cost when you sign up, so be sure to grab your copy today and position yourself to profit on the most important smartphone launch of the year.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.