2SB1223 Bipolar Transistor

Characteristics of 2SB1223 Transistor

  • Type: PNP
  • Collector-Emitter Voltage, max: -60 V
  • Collector-Base Voltage, max: -70 V
  • Emitter-Base Voltage, max: -6 V
  • Collector Current − Continuous, max: -4 A
  • Collector Dissipation: 20 W
  • DC Current Gain (hfe): 2000
  • Transition Frequency, min: 20 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-220F

Pinout of 2SB1223

Here is an image showing the pin diagram of this transistor.


Sometimes the "2S" prefix is not marked on the package - the 2SB1223 might only be marked "B1223".

Complementary NPN transistor

The complementary NPN transistor to the 2SB1223 is the 2SD1825.

Replacement and Equivalent for 2SB1223 transistor

You can replace the 2SB1223 with the 2SA1259, 2SB1020, 2SB1020A, 2SB1024, 2SB1224, 2SB1225, 2SB1251, 2SB1251-P, 2SB1251-Q, 2SB1252, 2SB1252-P, 2SB1252-Q, 2SB1626, 2SB1626-O, 2SB1626-P, 2SB1626-Y, 2SB601, 2SB601-K, 2SB601-L, 2SB601-M, 2SB673, 2SB674, 2SB675, 2SB751-P, 2SB751-Q, 2SB751A-P, 2SB751A-Q, 2SB880, 2SB881, 2SB882, 2SB950, 2SB950-P, 2SB950-Q, 2SB950A, 2SB950A-P, 2SB950A-Q, 2SB951, 2SB951-P, 2SB951-Q, 2SB951A, 2SB951A-P, 2SB951A-Q, MJF127, MJF127G, MJF6668, MJF6668G or TTB1020B.
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