Analysts See iPhone 4S Supply Constraints Throughout Holiday Quarter

Fortune summarizes a pair of analyst reports out today suggesting that Apple may be experiencing some supply constraints on the iPhone 4S during this holiday quarter. The company has obviously been working hard to demand for the device as shipping estimates through iPhone carrier partners and even Apple itself have at times been lengthy, but beyond high demand the new reports suggest that Apple may be having some trouble meeting its own production goals for the device.

The first report, from Rodman and Renshaw analyst Ashok Kumar, cites shortages of an unidentified "key component" for the iPhone 4S that is holding back production.

In a note entitled "Limited near-term upside for iPhone," Rodman & Renshaw's Ashok Kumar alerted clients that low yields on an unidentified "key component" is likely to constrain production of the iPhone 4S this quarter.

Including an estimated four million iPhone 4S units that were manufactured but not shipped in the prior quarter, Kumar says that Apple could sell 30 million iPhones this quarter, still a healthy number but leaving Apple without the ability to completely satisfy consumer demand.

The second note comes from Susquehanna Financial's Jeff Fidacaro and similarly cites "supply constraints" as the reason behind his reduction in quarterly iPhone sales of about three million units, moving from 26-28 million units to 23-25 million units. He notes that demand appears to remain strong but that Apple is having a hard time producing enough iPhones to meet that demand.