RS Pro 564497

Electronic components and automation solutions from RS Pro has been offering no compromise between quality, price and efficiency since 1937. Quality is the company’s passion, that is why every item gets audited, inspected and tested for compliance with internal and international standards by highly qualified engineers.T5.5 Telephone SlideFilament lamps will perform to specification and give optimum life when:a) They are powered at the rated voltage from a stabilized 50 Hz AC supply.b) Ambient temperature is in the range 20°C to 25°C.c) No mechanical vibration is present.Deviations from these criteria have a significant effect on lamp life, particularly with low current filaments (80mA).Power from a DC supply at the rated voltage can reduce the listed life by up to 50%.The effect of deviation from the rated operating voltage should be noted:5% above will reduce lamp life by up to 50%.5% below will significantly increase lamp life.Power consumption may vary up to ±10% compared to the listed values at the rated supply voltage. Therefore particular care should be taken when a number of lamps are connected in series. In such applications it is recommended that the rated voltage be reduced by 10% to prevent premature failure of individual lamps.