Electrostatic screening protects against noise which can otherwise occur between the coil drive and high voltage circuits. This new screening is in addition to Pickering’s internal mu-metal screen which eliminates magnetic interaction when devices are closely stacked.
Series 67 and 68 high voltage reed relays are constructed using a leadframe in a Single-in-Line format and feature former-less coils which means that they can be housed in a smaller package than is usual for this type of device, that measures just 58.4 x 12.6 x 14.5mm. Series 67 relays feature PCB connections to switch and coil and provide the highest power switch capability in the Pickering portfolio – up to 200W . Series 68 devices have PCB connections to coil and flying leads to the switch which keeps high voltage away from the PCB. Configurations include:
- 1 Form A SPST up to 10kV stand-off, 7.5kV switching at 50W (max);
- 1 Form A SPST up to 8kV stand-off, 6kV switching at 200W (max);
- 1 Form C SPDT up to 5kV stand-off, 2.5kV switching at 100W (max);
- 5, 12 or 24V coils are available with the option of an internal diode across the coil connections
Commented Kevin Mallett, Technical Specialist at Pickering Electronics: “Pickering continuously looks to improve our product offering. Electrostatic screening adds a new level of protection, ensuring our relay families provide the optimum performance for high voltage applications.”
