smd三极管（sot-23封装）的表示方法
90111t
90122t
9013j3
9014j6
9015m6
9016y6
9018j8
s8050j3y
s85502ty
8050y1
8550y2
2sa1015ba
2sc1815hf
2sc945cr
mmbt39041am
mmbt39062a
mmbt22221p
mmbt54012l
mmbt5551g1
mmbta421d
mmbta922d
bc807-165a
bc807-255b
bc807-405c
bc817-166a
bc817-256b
bc817-406c
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bc846b1b
bc847a1e
bc847b1f
bc847c1g
bc848a1j
bc848b1k
bc848c1l
bc856a3a
bc856b3b
bc857a3e
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bc858a3j
bc858b3k
bc858c3l
2sa733cs
un2111v1
un2112v2
un2113v3
un2211v4
un2212v5
un2213v6
2sc3356r23
2sc3838ad
2n7002702
不过从不同厂家出的表示方法还有些差异
