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. • Stick packaging also available for autom atic mounting, depending the type relay. Tem perature 120°C 248°F less Time ithin approx. • Preheat according the following conditions. Solderability also improves.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. Solder tem perature 260°C ±5°C 500°F±41°F Soldering tim ithin approx. See “Configuration and Construction” page 72. Use rosin-based non-corrosive flux. J Be sure preheat before using autom atic soldering. Note that the board is pressed down hard enough, flux may even penetrate flux-resistant type relay. If the board pressed down into a flux-soaked sponge shown the right, the flux can easily penetrate a dust-cover type relay. • g Keep the tip the soldering iron clean. 4 g • tic g • Flow solder the optimum method for soldering.g. seconds 66 . ♦ Bad exam ple 3 tin g r U U n uV. tin y f u u • Avoid bending the term inals make the relay self-clinching. Relay performance may degrade due the high thermal capacity these boards. • Unless otherwise specified, solder under the following conditions depending the type relay. ith this style, loss function may occur because of seepage into the relay flux, which is applied the board. Please review the parts construction and characteristics. This could impair relay performance. The type protective structure will determine suitability for automatic soldering autom atic cleaning. Soldering Iron 60W Iron Tip Tem perature 350°C 662°F Soldering Time ithin approx. • Adjust the level solder that does not overflow onto the top the PC board. (Be sure that the relays don't rattle. 1. Relay performance cannot guaranteed if the term inals are bent. Please refer them during installation in order avoid problems. seconds • Please take caution with ulti-layer boards.) Interference may occur internally the gripping force the tab of the surface mounting machine too great. This must observed especially for dust-cover type relays. due a malfunctioning unit) may affect relay characteristics. inutes • Note that long exposure high tem peratures (e. 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. Self-clinching term inal types are available depending on 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. • Correctly drill the board according to the given board pattern illustration