High voltage reed relays on display at TUG 2017
The high voltage Single-In-Line (SIL/SIP) reed relay range from Pickering Electronics has expanded to include three new series that all offer higher packing density. The series 67 and 68 dry reed relay range for up to 10kV, and the series 119 Micro-SIL range for up to 3kV. The company claims that the series 119 is the industry’s smallest high voltage SIL/SIP Reed Relay for up to 3kV stand-off. 1 Form A, 2 Form A and 1 Form B versions are available with either 3, 5 or 12V operating coils.
The 1 Form A, 1kV version has 4 pins on 3.8mm (0.15") pitch, the same as the long-established series 109P. These can be stacked side-by-side for maximum packing density (all Pickering SIL/SIP Relays have full magnetic screening allowing side by side operation).
This series 119 relay is intended for voltages considerably higher than standard small SIL/SIP relays, suitable for cable and backplane testers and mixed signal ATE. Pickering also offer other SIL/SIP High Voltage dry reed relays with the series 104 for use up to 3kV stand-off, 25W switching.
The series 67 and 68 reed relay range are available for up to 10kV stand-off, 7.5kV switching, with an option of either PCB or flying lead switch connections. Similar in specification to the long-established series 60/65, these new relays are manufactured in a SIL/SIP format using former-less coils which dispense with the more usual coil supporting bobbin allowing a smaller package than similar rated devices.
The unusual package design does present some interesting packing possibilities for high density applications such as multiplexers and matrices in instrumentation and test systems. 5, 12 and 24V coils are available as standard, and other voltages can be supplied to special order, as can variations in the lead length of the series 68 range. The relays are suitable for high voltage transformer and cable test and some electro-medical applications such as defibrillators.
The long-established series 60, 62, 63 and 65 are suitable for up to 15kV stand-off, 12.5kV switching at 50W maximum. The series 62 and 63 also come with push on connections on the top face. Like the series 67 and 68, these larger parts all feature robust tungsten plated contacts to ensure a long and reliable life.