RELAYS Panasonic

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Panasonic is part of a large worldwide groupselling relays and associated switching products under different brand names in different territories.The conditions of use in some territories may differ from those customary in Europe. In particular there are often major differences in regard to national and international specifications, such as UL, CSA, VDE, SEV, EVE, SEMKO, etc. Thus, when considering contact loads as stated in this catalogue (e.g. 10 A, 30 VDC for the SP relay) its hould be understood that these values are not necessarily an absolute maximum but tested ratings. Mostly the stated value has been tested for a certain life expectancy as stated by the manufacturer or the respective test house. Thus, under different conditions, the stated “maximum” may, in practice, be safely exceeded.

Vydal: Panasonic Electric Works Czech s.r.o. Autor: Panasonic

Strana 964 z 1090

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Poznámky redaktora
) (Tri sufficient for signal use. This does not mean that is im ediately connected the defect, but it linked troubles that occur after long periods use and with many units in operation. • Due the relay coil current, the difference the voltage point P when Tr2 conducting and point P when Tri conducting creates hysteresis the detection capability of Schm idt circuit, and care must taken in setting the values. (No good) arlington connection (Due excessive consumption power, heat is generated. (High amplification) This circuit trap into which easy to fall when dealing with high circuit Schm idt trigger circuit. This may cause the problems described above. • hen there chattering the input signal because waveform oscillation, an tim constant circuit should be inserted the stage before the 5 lin tio .) (A strong Tr1 necessary) (G ood) itter connection (Tr2 conducts completely.) 6 lta e In switching applications where a sem iconductor (transistor, UJT, etc. This because the drop-out voltage is 10% more the rated voltage, low value compared that for coil, and also there tendency increase the life lowering the drop-out voltage. W hen the signal from the transistor's collector taken and used drive another circuit shown the figure on the right, minute dark current flows to the relay even the transistor off. using coils, there may be reduction in; the danger of incomplete restoration, the contact pressure, and the vibration resistance.) is connected the coil, residual voltage is retained the relay coil which may cause incomplete restoration and faulty operation. (However, the response speed drops.Applications Relays Electronic Circuits compared with the resistance the relay coil. C tio h c lle r ds_x61_en_relay_technical_information_091112D 25 .) technology