Where do i find photocells that have actual resistance ratings??

[Tyler1144]

All the sites i go to it just gives me the diameter or something stupid like that, but it doesnt say ANYTHING about light resistance and dark resistance or voltage or anything. Wheres a good site to buy (preferrably smaller) photocells??

[SineHacker]

do you mean light dependent resistors? - A techy at the uni told me off for calling them photocells before  apparently they are different but loads of web pages state otherwise!

most sites should provide the 'dark resistance' which is the total resistance in the absence of light, cpc do:

http://cpc.farnell.com/silonex/mpy54c569/light-dependent-resistor/dp/RE00180?Ntt=lightdependentresistor

[Circuitbenders]

no offence intended here but do you actually do any searching before posting on this board? You do seem to be starting a fair few threads that could easily be answered using the forum search function or by just using google.

Virtually any decent components site like CPC or Rapid has full dark/light resistance specs, usually along with spectral reponse, response time and voltage ratings.

[Tyler1144]

no offence intended here but do you actually do any searching before posting on this board? You do seem to be starting a fair few threads that could easily be answered using the forum search function or by just using google.

Virtually any decent components site like CPC or Rapid has full dark/light resistance specs, usually along with spectral reponse, response time and voltage ratings.

Yeah i had checked partexspress and ebay and a few others, it may have been because i called them photocells

[Dylan]

Plug it up to your multimeter and cover it with tape. Then read the S.O.B.