Bom dia!
Não consigo arranjar o esquema desta fonte(BN44-00349B), alguem me consegue identificar este transistor smd

Veja se esta cábula ajuda
BN44-00349B

não tem nada que eu preciso.
aqui está a foto do smd
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MMBT100 Bipolar Transistor


Characteristics of MMBT100 Transistor
Type - NPN
Collector-Emitter Voltage: 45 V
Collector-Base Voltage: 75 V
Emitter-Base Voltage: 6 V
Collector Current: 0.5 A
Collector Dissipation - 0.35 W
DC Current Gain (hfe) - 100 to 450
Transition Frequency - 250 MHz
Noise Figure - 5 dB
Operating and Storage Junction Temperature Range -65 to +150 °C
Package - SOT-23
Electrically Similar to the Popular PN100 transistor


Pinout of MMBT100
Here is an image showing the pin diagram of the this transistor.
Pinout of the MMBT100 smd sot-23 transistor, smd marking code NA


Marking
The MMBT100 transistor marking is "NA".
Complementary PNP transistor
The MMBT200 is a complementary PNP transistor for the MMBT100.
MMBT100 Transistor in TO-92 Package
The PN100 is the TO-92 package version of the MMBT100.
Replacement and Equivalent for MMBT100
You can replace the MMBT100 with the 2SC3912, 2SC3913, 2SC3914, 2SC3915, BC817, BCW66, BCX19, FMMT619, FMMTA05, FMMTA06, KST05, KST06, MMBTA05, MMBTA06, PMBTA06, SMBTA05 or SMBTA06.