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