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 917 z 1090

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seconds 66 .Excerpts from Technical Information RELAY SOLDERING AND CLEANING GUIDELINES In keeping with making devices compact, it becoming more common weld the relay board along with the sem iconductors instead using the previous plug-in type which relays were plugged into sockets.g. • g Keep the tip the soldering iron clean. If the board pressed down into a flux-soaked sponge shown the right, the flux can easily penetrate a dust-cover type relay. Soldering Iron 60W Iron Tip Tem perature 350°C 662°F Soldering Time ithin approx. Never use this method. For dust-cover type relays and flux-resistant type relays, preheating acts prevent the penetration flux into the relay when soldering. Solder tem perature 260°C ±5°C 500°F±41°F Soldering tim ithin approx. This must observed especially for dust-cover type relays. 4 g • tic g • Flow solder the optimum method for soldering. J Be sure preheat before using autom atic soldering. Relay performance may degrade due the high thermal capacity these boards. tin y f u u • Avoid bending the term inals make the relay self-clinching. Tem perature 120°C 248°F less Time ithin approx.) Interference may occur internally the gripping force the tab of the surface mounting machine too great. Use rosin-based non-corrosive flux. Please review the parts construction and characteristics. • Adjust the level solder that does not overflow onto the top the PC board. Solderability also improves. inutes • Note that long exposure high tem peratures (e. Note that the board is pressed down hard enough, flux may even penetrate flux-resistant type relay. 1. due a malfunctioning unit) may affect relay characteristics. f \ Bad exam ple 2 lic tio n Adjust the position the board so that flux does not overflow onto the top of it. Relay performance cannot guaranteed if the term inals are bent. • Correctly drill the board according to the given board pattern illustration. Therefore, the following precautions are provided for soldering relay onto board. ith this style, loss function may occur because of seepage into the relay flux, which is applied the board. The type protective structure will determine suitability for automatic soldering autom atic cleaning. Please refer them during installation in order avoid problems. • Stick packaging also available for autom atic mounting, depending the type relay. • Preheat according the following conditions. • Unless otherwise specified, solder under the following conditions depending the type relay. seconds • Please take caution with ulti-layer boards. (Be sure that the relays don't rattle. ♦ Bad exam ple 3 tin g r U U n uV. See “Configuration and Construction” page 72. Self-clinching term inal types are available depending on the type relay. This could impair relay performance