1.现金超高价收购工厂库存、呆料、库存配件、IC芯片、内存芯片、贴片二三极管、贴片（直插）电容电阻等。
2.各类IC，二三极管，BGA各种电容电阻，发光管，接收头，咪头，晶振。宁波回收单片机上门收购
3.手机IC，CPU电源，字库，功放，中频，排线等。
4.电脑内存条，硬盘，CPU，主板，显卡、VGA内存芯片：K4、K9、HY开头字母等。 宁波回收单片机上门收购
5.各种液晶屏及摄像配件的电子料。收购电子元件收购IC求购电子元件,收购电子元件收购电子元器件,收购库存电子元件,回收电子元件
,回收库存电子元件,回收电子元器件,电子回收,电子收购,回收集成电路,收购集成电路,收购库存呆滞料，回收电子料件，回收单片机，
回收硬盘；宁波回收单片机上门收购
长期收购库存积压各种电子元件，家电、通讯、电脑、设备、数码等方面的所有电子元件,配件,半成品,成品等等，收购IC，晶体，二极管，三极管，单片机，钽电容，电解电容，片容片阻，FLASH，电感，继电器，电位器等等，收购内存条、网卡、显卡
、硬盘、手机咪头、喇叭、液晶屏。 中介付佣，以诚相待，欢迎有库存电子的单位和个人来电洽谈。
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UMT2N（长电SOT-363）
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UMV-1050-R16-G
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UMX18N(罗姆)
UMX18N（长电SOT-363）
UMX1N(罗姆)
UMX1N（长电SOT-363）
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UMX2N（长电SOT-363）
UMX3N（长电SOT-363）
UMY1N(罗姆)
UMY1N（长电SOT-353）
UMZ-104-A16-G
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UMZ1N(罗姆)
UMZ1N（长电SOT-363）
UMZ1NFHA(罗姆)
UMZ1NT1G
UMZ27NUM(罗姆)
UMZ2N（长电SOT-363）
UMZ30NUM(罗姆)
UMZ36NUM(罗姆)
UMZ-442-A16-G
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UMZ-533-D16-G
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UMZ8.2NUM(罗姆)
UMZ-867-D16-G
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UNAT-1+
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UNAT-9+
UNMP-5075 +
UNMP-5075-33 +
UNMP-5075-33R +
UNMP-R5075-33 +
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开关型稳压电路近年来广泛应用的新型稳压电源是开关型稳压电源。它的调整管工作在开关状态，本身功耗很小，所以有效率高、体积小等优点，但电路比较复杂。开关稳压电源从原理上分有很多种。它的基本原理框图见。图中电感L和电容C是储能和滤波元件，二极管VD是调整管在关断状态时为L、C滤波器提供电流通路的续流二极管。开关稳压电源的开关频率都很高，一般为几～几十千赫，所以电感器的体积不很大，输出电压中的高次谐波也不多。