Tag Archives: relay

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 ...

CUI Devices has added 300 parts to its line of power relays. “This product introduction more than doubled our previous offering,” a spokesman for the company told Electronics Weekly. “The notable feature additions are Class F coil insulation, epoxy sealed models, expanded coil voltages from 3 to 110Vdc, silver tin oxide contact material and extended temperature range models from -55 ...

FCL Components has announced a 60A 400Vdc relay for PCB-mount automotive applications that does not need a reduction in coil voltage after actuation. Called FTR-E1-HC, its coil only dissipates ~1.2W at rated voltage. Dielectric strength is 5kVac (1 minute) between coil and contacts, and 2.5kVac between contacts. “The FTR-E1-HC also features arc extinguishing technology which use a cleverly placed permanent ...

All credit to Thomas Langewouters for an unusual reed switch ladder circuit for liquid level sensing. You can find it on his website here. He went on to use a more traditional two-terminal design, but this four-terminal circuit, as he points out, can be used to get a little more information. Fluid level sensing with reed switches involves a fixed ...

Standex Electronics has created a series of mini magnetic field sensing reed switches, optimised to control up to 10W, 200V or 500mA. Called MK33, they are bare glass surface-mount reed switches with a footprint only 2.2mm wide and only 2.3mm high. Construction is with a short length of 1mm diameter wire welded transversely across the ends for pre-solder-flow stability. “Mechanically, ...

Pickering Electronics has introduced a single-in-line reed relay  family that mounts on a 0.25inch pitch while switching 80W or 2A. Called Series 144, they feature sputtered ruthenium contacts so they can switch at high power and low-level signals. There is also an internal mu-metal screen to eliminate magnetic interaction between closely stacked devices. Maximum carry current is 3A in all ...

Toshiba is eyeing semiconductor test applications with a tiny photo-relay that operates at 1.6Vin “making it suitable for use with 1.8V FPGAs”, according to the company. “A resistor is built in on the primary side, enabling voltage-controlled operation.” Called TLP3412SRLA, it draws 6.6mA at the nominal operating voltage of 1.8V. Inside is a single Form-A (normally-open) ac or dc contact that ...

Pickering Electronics had added a single-in-line reed relay which can stand-off 5kV and switch 1.5kV to its Series 104. Inside is a single-pole normally-open contact (‘1 Form A’). Footprint is 6.22 x 24.1mm, and the relays stand 8.1mm tall above the PCB. “This is particularly advantageous where a compact design is essential, as the devices can stack at just 6.35mm,” ...

Looking like a general-purpose problem solver for process control, Teledyne Relays has introduced a seven-function DIN rail mount timing relay that works over 100ms to 100 hours and offers a 5A 240Vac change-over (SPDT) contact, that can handle “small inductive loads” at 2.5A. Operation is over a wide range of ac or dc supplies. There are two versions: MFT02A12 12-240Vdc ...

Panasonic has launched a series of 70A PCB-mount power relays designed to US standards “The HE-R2A relay series is suited for modern wall box designs, and we are happy that we can offer a UL508-compliant sibling of the HE-R type for European four-phase systems, enabling the consolidation of switching functions onto PCBs with space savings,” said Panasonic product manager Bernd ...