Transistor with built-in resistance (BRT)
Example of Transistor with built-in resistance (BRT)
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RN means Toshiba transistor that has a built-in resistance
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Polarity
This number shows the polarity of a product.
Products are classified into three types, as shown below, by the polarity.
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1: NPN (small-signal)
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2: PNP (small-signal)
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4: PNP + NPN
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& 5. Package type
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Serial number
Serial numbers that start from "A1": Dual
Serial numbers that start from "01": Single