Operating and Storage Junction Temperature Range: -55 to +150 °C
Package: TO-3P
Pinout of 2SC4688
Here is an image showing the pin diagram of this transistor.
Classification of hFE
The 2SC4688 transistor can have a current gain of 55 to 160. The gain of the 2SC4688O will be in the range from 80 to 160, for the 2SC4688R it will be in the range from 55 to 110.
Marking
Sometimes the "2S" prefix is not marked on the package - the 2SC4688 might only be marked "C4688".
Complementary PNP transistor
The complementary PNP transistor to the 2SC4688 is the 2SA1803.
SMD Version of 2SC4688 transistor
The BDP951 (SOT-223) is the SMD version of the 2SC4688 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.