Tag Archives: fuse

Nexperia has created a pair of 17mΩ 13.5A resettable electronic fuses for 12V hot-swap applications in 3 x 3 x 0.75mm DFN3030-10 (SOT8037-1) packaging. NPS3102A and NPS3102B operate with 9 to 18V on the input (21V abs. max) and can limit output current to anywhere between 2 and 13.5A range, programmed using a resistor – the voltage across which can ...

Puls has introduced a range of DIN rail electronic circuit breakers for 24V loads from 90 to 480W. “With a width of only 22.5mm, PISA-M is the smallest four-channel electronic circuit breaker in the market,” according to the company. “PISA-M features a digital coded interface providing a way to remotely control the devices and to monitor the operational system status. ...

Bourns has created a series of self-resetting fuses that can carry from 12 to 20A at 60°C. Called Model NX, they measure 2.8 x 9.8mm including two 2.8 x 2.5mm flat connecting tabs, one at each end. Height is just under 1mm. “While our new Model NX Series has the same footprint as our Model NR series, it can carry ...

Microchip has used silicon carbide power transistors in an electronic fuses demonstrator for electric vehicle batteries. “The demonstrator can detect and interrupt fault currents in microseconds, 100 – 500 times faster than traditional mechanical approaches,” according to the company. “The fast response substantially reduces peak short-circuit currents from tens of kilo-amps to hundreds of amps, which can prevent a fault ...

Bel Fuse is aiming at hazardous environments with a series of 3 x 8.4mm fast-acting ceramic tube fuses. Type 0AMA fuses are designed for barrier circuits in intrinsic safety applications – particularly medical and industrial hazardous locations. They have “a patented design that allows them to withstand surges and excess over-current without blowing out prematurely or failing at higher temperatures.”, ...

Texas Instruments has created an 60A electronic fuse for system protection and power management (right), and a 50A version with added PMBus control. Called TPS25985x, the 60A device “provides multiple protection modes using very few external components and is a robust defence against overloads, short-circuits and excessive inrush current”, according to the company. Inside is a 0.59mΩ switch, and the ...

Schurter has introduced a through-hole fuse holder specifically designed to be compatible with reflow soldering. It is branding this as ‘THR’ for ‘through-hole reflow’. “Highly integrated electronic circuits are almost exclusively assembled with surfact-mount components and soldered in a reflow oven, however, it is sometimes necessary to include through-hole components on the circuit board,” according to the company. “THR components ...

Schurter has added a low-trip-temperature variant to its RTS thermal fuse range, originally launched in 2018. Rather than >210°C, they are rated at >175°C. They have been developed to protect power semiconductors from over-heating – particularly from thermal-runaway when the semiconductors are in a confined space. In such an event, the thermal fuse interrupts the circuit, now from as early as ...

Vishay has introduced fast-acting AEC-Q200 qualified 0603 surface-mount fuses for automotive applications. Called MFU 0603 AT, versions of the one-time fuses are rated between 0.5 and 5A, with operation at up to 63 and 32V respectively, and over -55 to +125°C. The parts are 1.55 x 0.85 x 0.45mm. “The devices will be used in electric and hybrid electric vehicles, where ...

Bourns has introduced two series of high-grade surface-mount fuses, rated to 150°C. SF-0603SA-M and SF-1206SA-M have slow-blow characteristics, conducting for at least four hours at rated current, and clearing within 5s at room temperature and 2.5x rated current. They come in EIA 0603 and 1206 footprints respectively, and are of multilayer ceramic construction with protection against thermal shock, salt spray and mechanical ...