High Voltage

Pickering has introduced a reed relay that can stand-off 20kV. “The relay features 12.5kV switching at a maximum of 50W,” according to the company. “Tungsten-plated contacts ensure a long and reliable life, supporting up to 100 million operations when cold switching.” Footprint is 63.5 x 19mm, and they have coil terminals on the bottom and the high-voltage contact terminals on ...

Vishay has introduced 1, 2 and 3kV multi-layer ceramic capacitors for commercial applications. In seven case sizes from 1206 to 2225, they are made with either C0G (NP0) or X7R dielectric. C0G types are rated at 2kVdc or 3kVdc and come in values between 1.5pF and 82nF, with a temperature coefficient of 0±30ppm/°C from -55 to +125°C. X7R types are ...

Stackpole is aiming at accurate high-voltage measurement with a family of resistors that are 100% tested for voltage-induced resistance variation. Called ‘HVCR’, the family incudes resistors between 10 and 100MΩ, specified to have a voltage coefficient of resistance  better than -5ppm/V for the 1206 size and -2ppm/V for the 2512 size. “Applications such as testing equipment, instrumentation, high voltage inverters, battery ...

Omron has launched a high-capacity PCB-mount relay for switching dc in 15 to 40kW household electricity storage systems, bi-directional EV chargers and uninterruptible power systems. G9KB-E is based on the earlier G9KB family, and is the same size and weight (37 x 50mm footprint and 50mm tall), but can switch higher power, up to maximums of 800Vdc or 100A. Envisaged ...

Samsung has created a 630V 100nF multi-layer ceramic capacitor in 1210 size (3.2 x 2.5mm) specifically for electric vehicle dc-dc converters and on-board chargers. CL32B104KHU6PN has an X7R dielectric (±15% capacitance -55 to +125°C) and a maximum rated voltage of 630V. “A dc-dc converter converts high voltages to 12Vdc in order to operate in-vehicle infotainment systems, for example,” according to ...

Teledyne has introduced a high-voltage connector system for use up to 13.5kV and 70,000 feet (21km) altitude. Called DHM, they use the company’s self-contained ‘Hi/Mate’ inserts, pre-wired inside sub-D housings and back-shells – they are only available made-up onto cables. “These inserts leverage Teledyne’s advanced interface sealing system, rendering them suitable for a wide range of aerospace and defense electronic ...

Electrocube has created a series of metallised polypropylene film capacitors for high power inverters in military and commercial, land and sea, applications. Voltage ratings of 400, 600 and 1,000V are available, and capacitances from 100nF to 10μF, plus 15 and 20μ in the 400V range “Able to handle high surge currents without degrading, Electrocube’s 985B is a rugged, non-inductively wound ...

Bourns has introduced a series of gas discharge tubes for protecting equipment against high-voltage surges. The bidirectional GDT28H series has devices with breakdown voltages from 1 to 3.3kVdc, and all are 8mm in diameter and 6mm long, with out without axial leads. Picking the nominally 2kV GDT28H-200 as an example, breakdown is between 1,600 and 2,400V (100V/s). Arc voltage is ...

Amphenol is aiming at vehicles with high-voltage versions of its MicroSpace connectors. “The LV214 Severity-2 compatible connectors are compact, robust and versatile,” according to distributor Mouser, which is stocking the parts. “With a rating of up to 1,200V and 4A, these connectors are suitable for higher power applications, including automotive navigation, infotainment and HVAC clusters.” Selectively-loading a higher pin-count connector ...

Pickering Electronics has announced 125°C versions of its 104 series high-voltage reed relays. 104HT relays will be available in a 1 Form A configuration (SPST NO) rated to stand-off 4kV. Full data has yet to be unveiled but, using the original (-20 to +85ºC) 4kV 104 relays as a guide, switching capacity is likely to be 1kVdc at 25W, and ...