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、TI 、ST、ALTERA、 XILINX 、 PIC、STC，自己压货，高价诚心诚信回收，24小时恭候你的来电。
长期回收以下型号：
TPMD337K006R0035
TPMD337K010R0035
TPMD337M004R0025
TPMD337M004R0035
TPMD337M006R0025
TPMD337M006R0035
TPMD337M010R0035
TPMD476K016R0100
TPMD476K020R0045
TPMD476K020R0055
TPMD476K025R0055
TPMD476M016R0100
TPMD476M020R0045
TPMD476M020R0055
TPMD476M025R0055
TPMD477K004R0025
TPMD477K004R0035
TPMD477K006R0030
TPMD477M004R0025
TPMD477M004R0035
TPMD477M006R0030
TPMD686K016R0040
TPMD686K016R0050
TPMD686M016R0040
TPMD686M016R0050
TPMD687K004R0025
TPMD687M004R0025
TPME106K050R0120
TPME106M050R0120
TPME107K020R0035
TPME107K020R0045
TPME107K025R0045
TPME107K025R0060
TPME107M020R0035
TPME107M020R0045
TPME107M025R0045
TPME107M025R0060
TPME108K004R0018
TPME108K004R0023
TPME108K006R0025
TPME108M004R0018
TPME108M004R0023
TPME108M006R0025
TPME156K050R0075
TPME156K050R0100
TPME156M050R0075
TPME156M050R0100
TPME157K016R0030
TPME157K016R0040
TPME157K020R0035
TPME157M016R0030
TPME157M016R0040
TPME157M020R0035
TPME158K002R0012
TPME158K002R0015
TPME158K002R0018
TPME158K004R0015
TPME158K004R0018
TPME158M002R0012
TPME158M002R0015
TPME158M002R0018
TPME158M004R0015
TPME158M004R0018
TPME226K035R0060
TPME226K035R0100
TPME226K050R0075
TPME226K050R0100
TPME226M035R0060
TPME226M035R0100
TPME226M050R0075
TPME226M050R0100
TPME227K016R0025
TPME227K016R0040
TPME227M016R0025
TPME227M016R0040
TPME228K002R0018
TPME228M002R0018
TPME336K035R0050
TPME336K035R0065
TPME336M035R0050
TPME336M035R0065
TPME337K010R0023
TPME337K010R0035
TPME337K016R0050
TPME337M010R0023
TPME337M010R0035
TPME337M016R0050
TPME476K025R0065
TPME476K035R0055
TPME476K035R0065
TPME476M025R0065
TPME476M035R0055
TPME476M035R0065
TPME477K006R0018
TPME477K006R0023
TPME477K006R0030
TPME477K010R0023
TPME477K010R0030
TPME477M006R0018
TPME477M006R0023
TPME477M006R0030
TPME477M010R0023
TPME477M010R0030
TPME686K025R0045
TPME686K025R0055
TPME686M025R0045
TPME686M025R0055
TPME687K004R0018
TPME687K004R0023
TPME687K006R0018
TPME687K006R0023
TPME687M004R0018
TPME687M004R0023
TPME687M006R0018
TPME687M006R0023
TPMU108K004R0018
TPMU108K004R0023
TPMU108M004R0018
TPMU108M004R0023
TPMU158K002R0018
TPMU158K002R0023
TPMU158M002R0018
TPMU158M002R0023
TPMU227K016R0030
TPMU227K016R0040
TPMU227M016R0030
TPMU227M016R0040
TPMU477K010R0023
TPMU477K010R0030
TPMU477M010R0023
TPMU477M010R0030
TPMU687K006R0018
TPMU687K006R0023
TPMU687M006R0018
TPMU687M006R0023
TPMV108K004R0018
TPMV108K006R0020
TPMV108M004R0018
TPMV108M006R0020
TPMV687K006R0023
TPMV687M006R0023
TPMY107K010R0045
TPMY107M010R0045
TPMY157K010R0045
TPMY157M010R0045
TPMY227K006R0030
TPMY227M006R0030
TPN11003NL
TPN11006NL
TPN11006PL
TPN1110ENH
TPN1200APL
TPN13008NH
TPN14006NH
TPN1600ANH
TPN1R60L
TPN2010FNH
TPN22006NH
TPN2R203NC
TPN2R304PL
TPN2R503NC
TPN2R703NL
TPN2R805PL
TPN2R90L
TPN30008NH
TPN3021RL（意法）
TPN3300ANH
TPN3R704PL
TPN4R203NC
TPN4R303NL
TPN4R712MD
TPN4R806PL
TPN5900CNH
TPN5R20L
TPN6R003NL
TPN6R303NC
TPN7R006PL
TPN7R504PL
TPN7R506NH
TPN8R903NL
TPPM0110DWP
TPPM0110DWPR
TPPM0111DWP
TPPM0301DR
TPPM0302DGN
TPPM0303D
TPPM0303DG4
TPPM0303DR
TPS16630PWPR
TPS16630RGER
TPS16630RGET
TPS16632RGER
TPS16632RGET
TPS1H000AQDGNRQ1
TPS1H100AQPWPRQ1
TPS1H100BQPWPRQ1
TPS1H200AQDGNRQ1
TPS1HA08AQPWPRQ1
TPS1HA08BQPWPRQ1
TPS1HA08CQPWPRQ1
TPS1HA08DQPWPRQ1
TPS1HA08EQPWPRQ1
TPS1HB08BQPWPRQ1
TPS1HB16BQPWPRQ1
TPS1HB35BQPWPRQ1
TPS1HB50BQPWPRQ1
TPS2000CDGK
TPS2000CDGKR
TPS2000CDGN
TPS2000CDGNR
TPS2001CDGK
TPS2001CDGKR
TPS2001CDGN
TPS2001CDGNR
TPS2001DDBVR
TPS2001DDBVT
TPS2001DDGK
TPS2001DDGKR
TPS2002CDRCR
交流电的过零点检测方案较多，目前较常见的也是我之前所使用的方案如所示：交流电光耦过零检测电路的电路可以检测到交流电经过零点的时间，但是它存在诸多的弊端，现列举如下：电阻消耗功率太大，发热较多。220V交流电，按照有效值进行计算三个47K的电阻平均每个电阻的功率为220^2/(3*47k)/3=114.42mw。对于0805的贴片电阻按照1/8w的功率计算，当前的消耗功率接近其额定功率，电阻发热大较大。