(In the field of LED lamp beads, there are 13 industry experience.) It has technical precipitation and high -quality products are more guaranteed. The LED lamp beads produced by Technology Co., Ltd. use regular squares. The following is the production of LED lamp beads for technology Co., Ltd. 14 important parameters: 1. Positive working current IF: It refers. In actual use, you should choose if the if is below 0.6 · ifM. 2. Positive working voltage VF: The working voltage given in the parameter table is obtained under a given forward current current. Generally measured when IF = 20mA. Lighting diode is positive working voltage VF at 1.4 3V. When the outside temperature rises, VF will decline. 3. V-I characteristics: The relationship between the voltage and current of the emitting diode and the current. When the forward voltage is less than a certain value (called the threshold), the current is extremely small and does not emit light. When the voltage exceeds a certain value, the forward current increases rapidly with the voltage, glowing. 4. Luminous strength IV: The light emitting intensity of the light emitting diode usually refers to the light emitting strength in the direction of the method line (to the cylindrical luminous pipe refers to its axis). If the radiation intensity is (1/683) w/sr in this direction, glow 1 Candra (CD). Due to the small intensity of the light emitting diodes of LEDs, candlelights (Kandla, MCD) are commonly used as units in the luminous intensity. 5. Ore angle of LeD: -90 - 90 6. Spectrum semi-width : It indicates the spectral purity of the optical pipe. 7. Half -value angle 1/2 and perspective: 1/2 refers to the angle between the direction of the emitting strength value of half of the axial strength and the angle of light (method direction). 8. Full shape: According to the angle of the LED luminous stereo corner, also called the plane angle. 9. Perspective angle: refers to the maximum angle of LED light, depending on the perspective, the application is also different, also called the light strong angle. 10. Half -shaped: The angle between the method between 0 and the maximum luminous intensity/2. Strictly speaking, the angle of the maximum luminous intensity and the maximum luminous intensity value/2. LED's packaging technology leads to the maximum lighting angle of light is not the strong value of 0 . The introduction of deviation angle, which refers to the angle between the maximum luminous intensity and the angle between the method from 0 . 11. The maximum positive DC current IFM: The maximum positive DC current allowed to be allowed. More than this value can damage the diode. 12. Maximum reverse voltage VRM: The maximum reverse voltage allowed by the allowed to add is the breakdown voltage. More than this value, the light emitting diodes may be broken and damaged. 13. Working environment TOPM: The environmental temperature range that can work normally. Below or higher than this temperature range, the light emitting diode will not work properly, and the efficiency is greatly reduced. 14. Allowable power consumption PM: The maximum value of the accumulation of the direct DC voltage and flowing through the current of the two ends of the LED. More than this value, LED fever and damage. This article comes from LED lamp bead manufacturers. Reprinting needs to indicate the source HTTP: // Welcome to inquire: 13902912109 Mr. Jiang 310S stainless steel pipe personal resume template 304 stainless steel pipe Tibetan scriptures
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