Sun Hydraulics now offers a selection of 770 (round) coils without transient voltage spike, or TVS, surge suppression diodes. The TVS diodes are included in DC coils to clamp the voltage spikes that occur when the coils are de-energized. The TVS diodes protect the electrical system from flyback voltage.
The new coils without TVS diodes should only be used when surge suppression is included elsewhere in the electrical system. Note: The TVS diode may need to be omitted in some systems, some with certain brand electrical controllers for example. Controller manufacturers can advise whether a TVS diode is necessary or must be omitted.
Coils now available without TVS surge suppression diodes:
Connectors Voltage DIN 43650 Form A Amp Jr. Timer Twin Leads Metri Pack Deutsch DT04-2P 12 VDC 770-212N 770-612N 770-712N 770-812N 770-912N 14 VDC 770-214N 770-814N 770-914N 24 VDC 770-224N 770-624N 770-724N 770-824N 770-924N