Relay

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 ...

Toshiba has created a pair of highspeed photo relays for pin-switching in semiconductor test equipment. “Improved infrared LEDs and optimised photodiode arrays in these models enable switch-on times to be reduced to 150µs while maintaining signal quality,” according to distributor Rutronik, which is stocking the parts. “In addition, the S-VSON4T package saves space on the circuit board.” – it measures ...

Menlo Microsystems is demonstrating a way to scale its MEMS relays – micro electromechanical relays – to “power distribution and control systems to 10MW and beyond” today at PICM in Nuremberg. Based on the company’s MM9200 300V 10A single-pole single-throw switch, the demonstration is of technology behind a 1,000V and 10,000A circuit breaker being designed for the US Navy. According ...

Vishay has introduced a 5A 30V solid-state relay in a SOP-4 surface-mount  package. VOR1003M4T is an industrial-grade relay with a 1 Form A (single-pole normally-open) contact. On the output side there are back-to-back mosfets allowing ac or dc to be switched. Typical output-side figures are: 0.7Ω Rds(on), 500μs Ton, 100μsToff and <1μA leakage. These switching times are with 10mA drive ...

A deeper dive into another board in the ancient cnc lathe revealed further quirks. The aim was to work out how the safety interlock worked – which uses the two relays on a board with digital logic and a big area with no components (photo). Find more cnc lathe project blogs here This took a while as there is a ...

FCL Components has introduced signal switching relays for electric vehicle power monitoring. “Conventional signal relays have often been used to switch signals for on-board equipment in electric vehicles,” according to the company. “However, electric vehicle batteries usually use 300 to 400Vdc. This exceeds the expected usage range of many signal relays.” There are three types, each available in multiple variants: ...

Standex Electronics has created a reed relay that measures 7.95 x 4.67 x 3.6mm and can switch 100V, 200mA, 3W or 8GHz. 8GHz is the -3dB frequency, at which the switch offers -5dB isolation when open. There are two versions: UJ-103RF has a 3.3V 90Ω coil UJ-105RF has a 5V 150Ω coil “This series is designed to meet the demand ...

Toshiba Electronics has introduced a 60V 1A single-contact photo-relay in a 2.6 x 7mm 4pad SO4 package. Called TLP3640A, it can switch 60Vdc or 60Vac peak, with a typical on-resistance of 0.14Ω and maximum off-state leakage of 1µA. 100ms pulses of up to 3A can be carried. Operation is over -40 to +110°C, and de-rating starts at 25°C, dropping linearly ...

Omron has designed a relay that can interrupt 200A at 500V, aiming to displace contactors from dc electric vehicle chargers, batteries and solar inverters. “A proprietary gas-less design cools arcs without the need for any special parts or materials in the manufacturing process, while eliminating the possibility of gas leakage,” according to the company. Gas-less? “G9EA, G9EC, and G9EH relays ...

Toshiba has released a “high-speed” low-voltage photo-relay “particularly suitable for the pin electronics of semiconductor testers”, it said. High-speed? “Turn-on switching time is below 80μs,” according to Toshiba. “Compared to the previous generation – TLP3450 – this represents a 40% improvement.” It has a single normally-open ‘contact’, consisting of back-to-back mosfets making it suitable for switching ac or dc signals. ...