5200 st. patrick st., montreal the old railway, princes street que., h4e 4n9, canada ulverston, cumbria, la12 7nq, uk tel: 514 - 768 - 8000 tel: 01 229 581 551 fax: 514 - 768 - 8889 fax: 01 229 581 5 54 qf - 84 rev 1 norps - 13 cds photocell plastic package description the norps - 13 is a cds photoconductive cell with a spec tral response similar to that of the human eye, encapsulated in a moisture - resistant coating and enclosed in a plastic casing. absolute ratings maximum operating temperature - 60 to +75 c storage temperature - 60 to +75 c voltage (peak ac or dc) 250 vol ts power dissipation at 30 c (2) 250mw electrical characteristics (t a =25 c unless otherwise noted) symbol parameter min. typ. max. units test conditions r l light resistance 2.4 5.6 k w 1 ftc. (1) r d dark resistance 0.5 m w 15 sec. after removal of test light. l p spectral peak 550 nm specifications subject to change without notice 104562 rev 0 notes: (1) cells light adapted at 30 to 50 ftc for 16 hrs minimum prior to electrical tests. (2) derate linearly to zero at 75 c.
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