Stylish LED Lights Arrays Controlled by Diotec’s Dual Transistor BC846S
A gentle revolution has entered our homes, offices and public places: LED lights have replaced almost everywhere the traditional incandescent bulbs. In terms of light quality and energy saving, LEDs offer several advantages. Conventional light sources convert only about five percent of the consumed energy into light, whereas LEDs are seven times more efficient in converting energy into light. They have a higher luminous intensity, providing a clearer and more luminous light. LEDs are highly energy-efficient, saving up to 90% electricity compared to incandescent lamps. Thus, they generate very little heat, reducing the risk of fire accidents. Furthermore, LEDs have a much longer service life, lasting up to 50,000 operating hours – saving costs and helping to reduce material use, energy consumption and finally waste.
LED arrays can be arranged in almost every kind of shape. Their driver circuit is built by few components only, an input rectifier, current limiting diode; a PWM controller IC and just a switching transistor. The BC846S by DIOTEC Semiconductor is a dual NPN transistor in the fully lead-free SOT-363 case outline. It offers 100 mA of output current and 250mW of total power dissipation. Enough to drive medium power LEDs used in array assemblies. The lead-free part is a plus for the environment and covers a rising demand in consumer applications.
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本文由玄子转载自DIOTEC News，原文标题为:Stylish LED Lights Arrays – Controlled by the Dual Transistor BC846S，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。
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MMBTRC116SS ... MMBTRC121SS SMD Digital NPN Transistors
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BC807 ... BC808 SMD General Purpose PNP Transistors
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DIOTEC Bipolar Transistors选型表
DIOTEC Bipolar Transistors 双极晶体管提供以下参数选型： Collector Emitter Voltage VCEO[V]：-400~700、DC Collector Current Ic[mA]：-5000~4000、Junction Temperature Tjmax [℃]：150、Power Dissipation Ptot[W]：0.15~25、DC Current Gain hfe：20~630、DC Current Gain VCE[V]：-1~10、DC Current Gain IC[mA]：-1000~500、Collector Saturation Voltage VCEsat[mA]：0~1600、Collector Saturation Voltage IC[mA]：-100~2000、Collector Saturation Voltage IB[mA]：-150~200、Gain Bandwidth Product ft[MHz]：0~600、Gain Bandwidth Product IC[mA]：-100~500、Gain Bandwidth Product VCE[V]：-4~20、Gain Bandwidth Product f[MHz]：0~200
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产品型号
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品类
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Type
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Package
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Collector Emitter Voltage VCEO[V]
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DC Collector Current Ic[mA]
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Polarity pol
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Junction Temperature Tjmax [℃]
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Power Dissipation Ptot[W]
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DC Current Gain hfe
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DC Current Gain VCE[V]
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DC Current Gain IC[mA]
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Collector Saturation Voltage VCEsat[mA]
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Collector Saturation Voltage IC[mA]
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Collector Saturation Voltage IB[mA]
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Gain Bandwidth Product ft[MHz]
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Gain Bandwidth Product IC[mA]
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Gain Bandwidth Product VCE[V]
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Gain Bandwidth Product f[MHz]
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2N2222A
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Bipolar Transistors
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Wire-lead
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TO-92
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40
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600
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NPN
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150
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0.625
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100
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10
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150
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300
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150
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15
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250
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20
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20
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100
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选型表 - DIOTEC 立即选型
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