• Relay storage requirements

    Relay storage requirements Generally MEISHUOs products should not be exposed to extreme high temperatures, high humidity or damaging media such as sulphurous, acid or basic atmospheres. Unless other specific requirements are documented, MEI...

  • Cleaning of relay

    Cleaning of relay Preferably a non-clean flux process should be used; in this case there is no need to wash the PCB and we recommend avoiding washing processes in order to protect the environment. If cleaning is necessary, certain precautio...

  • Diagnostics of relays, recommendations

    Diagnostics of relays, recommendations For the development of diagnostic routines these effects need to be considered: ■ The contact resistance may be higher than indicated in the datasheet and due to the fritting phenomena, also may show...

  • Cares should be taken when handling the relay during all sta

    Cares should be taken when handling the relay during all stages of production Modern relays are high precision components, sensitive to mechanical stress and abusive handling. Care must be taken when handling the relay during all stages of...

  • Precautions should be taken when mounting relay on PCB's

    Precautions should be taken when mounting relay on PCBs ■The relays have to be removed from the packaging in an orderly way, processing of relays in bulk is not permitted. Dimensions and PCB layout indicated in the datasheet are indicated...

  • Precautions must be taken during handling & processing

    Precautions must be taken during handling processing Handling during processing Relays are high precision components, sensitive to mechanical stress and abusive handling. Care must be taken when handling the relay during all stages of produ...

  • Vent hole, nip-off pin, opening

    Vent hole, nip-off pin, opening Most PCB relays, reflow solderable relays as well as THR and SMD relays, are provided with a closed vent hole on top of the cover (removable sealing pin on relay cover). Inside a sealed relay certain load con...

  • Transient suppression of relay coils

    Transient suppression of relay coils When the relay coil is de-energized, the inductive energy stored in it may generate a surge voltage of up to 1500V on the DC power line. As the use of solid devices continues to increase, the relay coil...