2SB553 Bipolar Transistor

Characteristics of 2SB553 Transistor

  • Type: PNP
  • Collector-Emitter Voltage, max: -50 V
  • Collector-Base Voltage, max: -70 V
  • Emitter-Base Voltage, max: -5 V
  • Collector Current − Continuous, max: -7 A
  • Collector Dissipation: 40 W
  • DC Current Gain (hfe): 70 to 240
  • Transition Frequency, min: 10 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-220

Pinout of 2SB553

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

Classification of hFE

The 2SB553 transistor can have a current gain of 70 to 240. The gain of the 2SB553-O will be in the range from 70 to 140, for the 2SB553-Y it will be in the range from 120 to 240.

Marking

Sometimes the "2S" prefix is not marked on the package - the 2SB553 might only be marked "B553".

Complementary NPN transistor

The complementary NPN transistor to the 2SB553 is the 2SD553.

Replacement and Equivalent for 2SB553 transistor

You can replace the 2SB553 with the 2SA1290, 2SA1291, 2SA1328, 2SA1329, 2SA1451, 2SA1451A, 2SA1452, 2SA1452A, 2SA1470, 2SA1471, 2SB1018, 2SB1018A, 2SB1019, 2SB1135, 2SB1136, 2SB825, 2SB826, 2SB870, 2SB946, 2SB992, 2SB993, BD204, BD304, BD536, BD538, BD544A, BD544B, BD544C, BD546A, BD546B, BD546C, BD798, BD800, BD802, BD808, BD810, BDT82, BDT82F, BDT84, BDT84F, BDT86, BDT86F, BDX78, D45H11, D45H11FP or D45H8.
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