Apple (Nasdaq: AAPL), the world's most valuable technology company, should reap another windfall from selling the iPhone 5, because component costs are only around $167.50, engineers at UBM TechInsights reported.

Apple plans to sell the iPhone 5 starting next Friday at prices ranging from $199 to $399. The Cupertino, Calif.-based company may sell as many as 42 million units of the new smartphone by Dec. 31, estimates UBS analyst Steven Milunovich.

Apple's main mobile carriers pay about $450 for every unit they sell.

Teams at engineering groups such as UBM TechInsights and IHS iSuppli, a unit of IHS (NYSE: IHS), a global research company, tear down electronic products and evaluate them for clients.

On a preliminary basis, TechInsights said components for the iPhone 5 cost $35 more than for the year-old iPhone 4S. The biggest increase is for the long-term evolution, or LTE, chip from Qualcomm Inc. (Nasdaq: QCOM), which speeds uploading and downloading content. The chip plus circuitry costs $25, or $11 more than the equivalent chip in its predecessor.

Also, the main A6 processor at the heart of the phone costs $28, which is $7 more than its predecessor cost. Apple hasn't disclosed its manufacturer, which previously was Samsung Electronics (Seoul: 005930), but it could be Taiwan Semiconductor Manufacturing Co. (Taipei: 2330). The A6 designs usually come from ARM Holdings (Nasdaq: ARMH) of the UK, which lacks production lines of its own.

TSMC is the principal manufacturer of chips for Qualcomm, as well as Broadcom (Nasdaq: BRCM), which provides the connectivity circuit.

The engineers will know for sure when they open up an actual product.

The higher-resolution display adds another $3, the engineers said. They are believed to come from Samsung, LG and Sharp Corp. (Tokyo: 6753), which set up a supply arrangement with Apple earlier this year.

Apple shares set another record high of $696.98 on Friday before easing back to $691.28, up $8.30 by the close of trading.

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