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About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

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Bipolar Transistors

Clicking on product's category allows you to see Transistors Part Naming Conventions.

Small-Signal Transistor

Example of JEITA-Registered Small-Signal Transistor

1. Transistor

2. Circuit configuration

  • A: PNP or similar transistor
  • C: NPN or similar transistor

3. JEITA registration number

4. Revision code

5. Package (may be null)
MFV: VESM (SOT-723)
CT: CST3

Example of In-House-Registered Small-Signal Transistor

1. Transistor

2. Circuit configuration

  • A: PNP or similar transistor
  • C: NPN or similar transistor

3. JEITA registration number

4. Revision code

5. Package
FU: USM (SOT-323, SC-70)

Transistor with built-in resistance (BRT)

Example of Transistor with built-in resistance (BRT)

1. RN means Toshiba transistor that has a built-in resistance

2. Polarity
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

3. & 5. Package type

4. Serial number
Serial numbers that start from "A1": Dual
Serial numbers that start from "01": Single

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