2SC2551-O Bipolar Transistor

Characteristics of 2SC2551-O Transistor

  • Type: NPN
  • Collector-Emitter Voltage, max: 300 V
  • Collector-Base Voltage, max: 300 V
  • Emitter-Base Voltage, max: 6 V
  • Collector Current − Continuous, max: 0.1 A
  • Collector Dissipation: 0.4 W
  • DC Current Gain (hfe): 50 to 150
  • Transition Frequency, min: 80 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-92

Pinout of 2SC2551-O

The 2SC2551-O is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, collector, and base leads.
Here is an image showing the pin diagram of this transistor.

Classification of hFE

The 2SC2551-O transistor can have a current gain of 50 to 150. The gain of the 2SC2551 will be in the range from 30 to 150, for the 2SC2551-R it will be in the range from 30 to 90.

Marking

Sometimes the "2S" prefix is not marked on the package - the 2SC2551-O might only be marked "C2551-O".

Complementary PNP transistor

The complementary PNP transistor to the 2SC2551-O is the 2SA1091-O.

SMD Version of 2SC2551-O transistor

The 2SC4497 (SOT-23), 2SC4497-O (SOT-23), BF620 (SOT-89), BF820 (SOT-23) and PMBTA42 (SOT-23) is the SMD version of the 2SC2551-O transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.

Replacement and Equivalent for 2SC2551-O transistor

You can replace the 2SC2551-O with the 2N6517C, 2SC2271, 2SC2482, 2SC3468, KSC1506 or KSC2330.
If you find an error please send an email to mail@el-component.com