------Question for LSR2-08F04-4080-00 Please Put your question below------
I used 2 of these PCBs and the power connector has melted on both of them. There is nothing in their datasheet talking about heatsink. How are we suppose to use these board and keep the power connector ?
Thank you for your inquiry.
The connectors on the device shouldn’t be melting.
What are you using the limit the current to the module? What is your power source?
A 24VDC power supply is used
I am not using anything to limit the current to the module. It should take what it needs
LEDs being solid state devices do not take what they need. Unless there are resistors built into the system, they act like a dead short at any voltage above the forward voltage. You’re frying the LEDs and the connectors.
You need a constant current LED Driver like the following to not cook those connectors:
APC-35-700 MEAN WELL USA Inc. | LED Drivers | DigiKey
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Thank you very much for that information. It is greatly appreciated. I learned something new today. Thank you very much
Some LED Strip modules do take constant voltage, they’ll often have resistors in parallel on the device to limit current, like seen below, but most need a constant current driver to limit current:
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Because the constant current LED Driver is 35W, I guess I will need 1 for each LED board?
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@jean-francois.jacob
It would be correct that for each of the 1672-1139-ND LED modules you would need one of the 1866-1129-ND.
Since the voltage capacity of 1672-1139-ND is 50V You can run two of LSR2-08F04-4080-00 in series since their forward voltage of 22.4V added together would equal 44.8V.
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