High temperature miniature high voltage reed relay meets EV and solar needs
Able to meet a wide range of applications including electric vehicles (EVs), solar and high voltage instrumentation IC testers, the Series 104HT relay can operate at up to 125 degrees C, said Pickering Electronics.
The high temperature, high voltage, single in line reed relay is available in the SIL package on a 6.35mm (0.25in) pitch and with a stand-off voltage capability of up to 4kV.
“High temperature can significantly affect the performance of reed relays, and many devices are only able to operate at up to 85 degrees C,” explained Pickering Electronics’ technical specialist, Kevin Mallet. “By designing these devices with increased magnetic drive and using specialist potting materials to sustain insulation resistance, Pickering can now offer reed relays that perform at elevated temperatures, and which can be stored at up to 150 degrees C,” he explained.
The Pickering Series 104 reed relays feature internal mu-metal screening to counter any magnetic interference. Electrostatic shielding is also available as an option. The relays are available in a range of configurations, including 1 Form A, 2 Form A and 1 Form B, and can be fitted with coils of either 5.0, 12 or 24V, with optional internal diode protection.
There are four types of dry switches available ensuring the relays are capable of standing off 1.5, 2.0, 3.0 or 4kV DC. Where higher stand off voltages are required, the 3kV and 4kV versions have been designed with an increased clearance between the switch and coil pins to accommodate the higher voltage. If the user requires even higher voltage ratings, Pickering provides a variety of build options, or fully customised designs. Mercury wetted devices are also available for applications where bounce-free switching is required. These are rated at 1500V DC minimum standoff, 500V DC switching at up to 50W.
Typical applications for the relays include mixed signal semiconductor testers, high-end cable testers, backplane testers, medical electronics, electric vehicles, solar energy and high voltage instrumentation.
