TT Electronics/Welwyn - Welwyn Components, a TT electronics company, designs and manufactures electronic components for customers across defence and aerospace, medical, transportation, energy and industrial electronics markets. More...
Key applications are circuit protection, power and energy management, medical device equipment and signal conditioning.
Products include: fixed resistors – current sense, high power, precision, fusible, flameproof, high voltage/value, surge/pulse, general purpose and dividers. Less...
|ULW Series Wirewound Resistors - TT Electronics/Welwyn ULW series wirewound resistors overcome the problems associated with conventional flameproof resistors caused by the ceramic rod at the resistor's core acting as a heat sink for the wire element. This can delay fusing, resulting in high enough temperatures to fragment the coating and ionize the air near to where fusing occurs. If ionization occurs close to the cap edge and at a voltage peak in the mains cycle, it can initiate a momentary flashover outside the component body, releasing far more energy than is required to fuse the wire element.
|RC Series Metal Film Resistors - TT Electronics/Welwyn RC series resistors can be supplied matched for tolerance and TCR down to ±0.02 percent and ±2ppm/°C, either as separate resistors or pre-assembled and encapsulated within a plastic box. The individual resistors within a set or module can be manufactured with a tolerance of ±0.05 percent and TCR of ±5ppm/°C.
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