Use this LED resistor calculator to find out the suitable resistance for your LED circuit consisting of one or more LEDs.Inputs Source Voltage (Vs): Volt LED Forward Voltage (Vf): Volt (Typical value: 2v) LED Forward Current (If) Milliamps (Typical value: 20mA) No. of LEDs in Series...
led限流电阻计算 LED限流电阻的大小计算（原创） 很多时候电路中都用LED做指示，这就涉及到限流电阻，这个怎么选取呢？ 可以举个例子,贴片蓝色LED datasheet上参数如下 要注意理解LED Datasheet上的参数。最重要的三个参数如下：VF——正向电压。这个正向电压是在IF=20mA的情况下...
Our LED calculator will help you determine the value of the current limiting series resistor when driving a single or an array of low-current LEDs.
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However, they will have to be both CC or CA to get a result from both. This is really useful if you want to compare the colour of two different RGB LEDs. This whole area has resistors selected based on a forward voltage of 3V and a current of 10mA per chip, giving a total of 30...
LM301B 0.2 W, 3 V mid power LED Luminous Flux: 38.8 lm @ 65 mA Luminous Efficacy: 220 lm/W CONTACT US CALCULATOR WHERE TO BUY Tech Spec Wattage0.2 W Forward Voltage2.71 V Luminous Flux38.8 lm Luminous Efficacy220 lm/W Condition5000K, 65 mA, 25°C ...
LH181B CSP LEDs LH181B Wattage (Max) : 4.5 W @ 1.4 A Luminous Flux: 173 lm @ 350 mA Size: 2.36 x 2.36 mm CONTACT US CALCULATOR WHERE TO BUY Tech Spec Wattage (Max)4.5 W @ 1.4 A Forward Voltage2.9 V Luminous Flux (Typ)173 lm @ 350 mA...
The LED series/parallel array wizard is a calculator that will help you design large arrays of LEDs. The LED calculator was great for single LEDs--but when you have several, the wizard will help you arrange them in a series or combined series/parallel configuration. The wizard determines the...
3030 LEDs Relaxing Lighting Solution Minimization of Melanopic Ratio Fine Tuned-spectrum for More Relaxing Effect CONTACT US CALCULATOR WHERE TO BUY Tech Spec Wattage0.9 W Forward Voltage6.1 V MDER0.58 Luminous Flux121 lm Luminous Efficacy133 lm/W ...
The circuit diagram in Figure 1 shows how to apply input voltage and thermal correction to a typical LED. A simple design guide for a single LED driver has also been put forward. The equations can generate a design capable of sourcing up to 200mA LED current, when used with the Zetex ...