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