Electronic Devices - Semiconductor Diodes - Discussion

Discussion Forum : Semiconductor Diodes - General Questions (Q.No. 28)
28.
What is the maximum power rating for LEDs?
150 mW
500 mW
1 W
10 W
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
6 comments Page 1 of 1.

Sabar said:   9 years ago
How to get the maximum current of LED?

Sriram said:   1 decade ago
Max voltage level at which LED's operates = 3.3 v.

Max current at which LED's can stand = 45.4 mA.

P = V*I.

P = 45.4*3.3 = 149.82.

It is nearly 150 mW.

Manu M said:   1 decade ago
These are old things. Now LEDs are available with wattage >10W easily. Philips 22-W led light can be available.

But still, for exam basis, 150mW maybe right :(.

Rekha Garg said:   1 decade ago
Max voltage level at which LEDs operates= 3.3v

Max current at which LEDs can stand = 45.4mA

Torab said:   1 decade ago
How do we find the max voltage = 5v ?

Singh said:   1 decade ago
Max voltage=5V max current=0.3mA(approx)then power=v*i

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