Sometimes the datasheet will specify max current at a particular duty cycle. Do you have a link to that datasheet? Strictly gut feel, but I'd think that 50mA at a 30% duty cycle would be ok.
I betcha that is Absolute Max of 30mA, and 150mA rated like this:Peak Forward Current (1/10th duty cycle, 0.1ms pulse width)so 150mA at 30% duty cycle will overheat them and lead to early failure.
I am saying read your datasheet to understand its limitations and be sure. I cannot access the link you posted at the moment.
Here's the link to the datasheet pointed to by that website:http://docs-europe.electrocomponents.com/webdocs/0332/0900766b80332ad6.pdfOn it it says:Absolute Maximum Ratings at 25C:Power Dissipation:150mWDC Forward Current: 30mAPeak Forward Current : 195mANotes:1. 1/10 Duty Cycle, 0.1ms Pulse WidthSo, the Max DC current is 30mA. The Max Peak current is 195mA (at 25C).50mA at 30% duty cycle? You're probably fine up to about 60mA (which averages to about 20mA, without ever approaching the max peak value).
what is the 195mA they specify then? Is this the current you are never allowed to exceed no matter the condition?
And they stay on for 5ms.
Or are they saying that if u use a 10% duty cycle you can pump max 195mA through them provided your pulse width is 0.1ms?