Here is an image showing the pin diagram of this transistor.
Classification of hFE
The KTD863-GR transistor can have a current gain of 160 to 320. The gain of the KTD863 will be in the range from 60 to 320, for the KTD863-O it will be in the range from 60 to 120, for the KTD863-Y it will be in the range from 100 to 200.
SMD Version of KTD863-GR transistor
The 2SC3444 (SOT-89), 2SC3444-E (SOT-89), 2SD1615 (SOT-89), 2SD1622 (SOT-89), 2SD602A (SOT-23), 2SD874A (SOT-89), BSP41 (SOT-223), BSR41 (SOT-89), FMMTA05 (SOT-23), KST05 (SOT-23), MMBTA05 (SOT-23), PZTA05 (SOT-223) and SMBTA05 (SOT-23) is the SMD version of the KTD863-GR transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.
KTD863-GR Transistor in TO-92 Package
The 2SD863-F is the TO-92 version of the KTD863-GR.
Replacement and Equivalent for KTD863-GR transistor