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What component is this?

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abhay kulkarni

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I am working on a CFL of Philips make, 11 watt, 220-240 V, 50 Hz.
There is a component called F1, that looks like a resistor, having 4 bands yellow violet black gold.
Is it a fuse? if yes what is the value?,
 

SunnySkyguy

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Logic tells me a 11W load @ 220V would draw 50 mA , which is pretty close to 47 point zero. You would need 5% tolerance of gold with 10% tolerance on voltage and low line would increase the chances of blowing the fuse if on full brightness. Normally the CFL draws more current near end of life , so the fuse is the protection for the switcher and an indicator that the CFL ought to be replaced at the same time.. which can be supplied by Digikey.
 

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