www.DataSheet4U.com SEI Electronics - Company Profile A Little History .
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SEI Electronics started manufacturing resistors in 1928, as part of the Stackpole Carbon Company in St.
Mary’s Pennsylvania.
To this day, SEI continues to focus on resistor products and nothing else.
In 1986, the senior managers of Stackpole’s resistor business bought the resistor operations from the Stackpole Corporation and established a separate company under the name Stackpole Electronics.
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