require 3 characters or more.
Transistor with built-in resistance (BRT)
Example of Transistor with built-in resistance (BRT)
- RN means Toshiba transistor that has a built-in resistance
This number shows the polarity of a product.
Products are classified into three types, as shown below, by the polarity.
- 1： NPN (small-signal)
- 2： PNP (small-signal)
- 4： PNP + NPN
- & 5. Package type
- Serial number
Serial numbers that start from "A1"： Dual
Serial numbers that start from "01"： Single
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