Electrostatic shielding option features formerless coils
High voltage reed relays, the Series 67 and Series 68, minimise noise between the coil drive and high voltage circuits. The 10kV high voltage reed relays are available from Pickering Electronics.
Electrostatic screening protects against noise which can otherwise occur between the coil drive and high voltage circuits. This screening is in addition to Pickering’s internal mu-metal screen which eliminates magnetic interaction when devices are closely stacked.
The Series 67 and 68 high voltage reed relays are constructed using a leadframe in a single-in-line (SiL) format. They feature formerless 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.
The 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) and 5.0, 12 or 24V coils are available with the option of an internal diode across the coil connections
Kevin Mallett, technical specialist at Pickering Electronics, said: “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.”
Pickering Electronics was formed over 50 years ago to design and manufacture high quality reed relays, intended principally for use in instrumentation and test equipment. Today, Pickering’s (SIL/SIP) range has more than 25 per cent more devices than competitors. The company’s small SIL/SIP reed relays are sold in high volumes to large ATE and semiconductor companies throughout the world.
The privately-owned Pickering Group comprises three electronics manufacturers: reed relay company Pickering Electronics; Pickering Interfaces, designers and manufacturers of modular signal switching and simulation products, and Pickering Connect which designs and manufactures cables and connectors.
