Miniature High Voltage Reed Relay Series 104HT

Miniature High Voltage Reed Relay Series 104HT

Pickering Electronics, a renowned leader in reed relay miniaturization and performance advancements for over 50 years, has introduced an innovative solution to meet the demands of high-temperature and high-voltage applications. The newly launched Series 104HT relay, part of their miniature high voltage reed relay family, boasts a remarkable operating temperature of up to 125°C. Encased in a single-in-line (SIL) package with a compact 6.35mm (0.25in) pitch, this relay offers an impressive stand-off voltage capability of up to 4kV.

Reed relays can be significantly affected by high temperatures, often limiting their operational range to 85°C. However, Pickering Electronics has overcome this challenge by incorporating increased magnetic drive and utilizing specialized potting materials to ensure sustained insulation resistance. As a result, the Series 104HT relays not only deliver exceptional performance at elevated temperatures but can also be stored safely at up to 150ºC. Kevin Mallett, Technical Specialist at Pickering Electronics, emphasizes the company’s dedication to pushing the boundaries of reed relay technology and enabling reliable operation in high-temperature environments.

The Pickering Series 104 reed relays feature internal mu-metal screening, effectively countering any magnetic interference. As an added option, electrostatic shielding is also available. These versatile relays come in a range of configurations, including 1 Form A, 2 Form A & 1 Form B, and can be fitted with coils of either 5, 12 or 24V, with optional internal diode protection.

With four types of dry switches to choose from, these relays are capable of standing off 1.5, 2, 3 or 4 kV DC. For those requiring higher stand off voltages, the 3 kV and 4 kV 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 customized designs tailored to meet unique requirements. Mercury wetted devices are also available for applications where bounce free switching is required. These are rated at 1500V DC minimum stand-off, 500V DC switching at up to 50W.

For users requiring a reliable reed relay that can perform well in high temperature environments, the new Series 104 high temperature, high voltage reed relays are worth considering. Suiting a variety of applications, including mixed signal semiconductor testers, high-end cable testers, backplane testers, medical electronics, electric vehicles, solar energy and high voltage instrumentation.

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