Digi-Key, in collaboration with Ametherm, presents a PTM describing transformer protection from inrush current using the NTC thermistor. This will provide a problem statement describing the inrush ...

Most petrochemical industrial facilities have numerous small (30kVA or 45kVA) transformers spread throughout the process units serving lighting and power distribution panelboards. In the U.S., the ...

One of the most dangerous locations in a power distribution system with regard to incident energy is that first panelboard on the secondary of a transformer. With some thought in your design — even if ...

MALVERN, Pa., Sept. 23, 2025 (GLOBE NEWSWIRE) -- Vishay Intertechnology, Inc. (VSH) today announced that its Vishay Ametherm SL2220007 bigAMP inrush current limiting negative temperature coefficient ...

CARSON CITY, NV--(Marketwired - Jun 24, 2014) - Ametherm today announced that global electronic components distributor Digi-Key Corporation is now stocking the company's SURGE-GARD™ series of NTC ...

TDK-EPC has extended its range of EPCOS inrush current limiters (ICL). The P11 series (B57211P*) covers a resistance range from 4 to 25 ohms (R25). These types are designed for currents from 2.5 to 5 ...

Often we try to find solutions to common power magnetics issues in engineering manuals. In the process, we encounter conflicting theories among publications with no definitive solutions offered. This ...

However much care is taken, it is very difficult to keep all traces of transformer-induced hum out of the signal circuitry. It is highly irritating to find that despite the cunning use of low-noise ...

Inrush current effect is common in electric motors. Sometimes, in case of ill-designed electrical wiring systems, switching on the motor may activate the fuse. It is caused by the inrush current – ...