New Ohmite High Energy Resistors deal with Power Surges
A new range of high energy resistors from Ohmite combine the benefits of non-inductive performance and high power density. Resistant to power surges such as lightning strikes, the first in the series, the TP810, would commonly be used to buffer the energy required to switch on and turn off components like large compressors and motors or spikes caused by faulty wiring or problems with the utility such as downed power lines.
Providing the impulse energy capability which is normally associated with wirewound or composition resistors, the TP810 resistor uses a double-sided screen printing process of pulse-tolerant thick film ink, coupled with a sophisticated scan-cut laser trimming process, to maximise the energy withstanding capabilities.
Occupying very little PCB space, the TP810 (10 watt) is the first of a platform of high energy thick film resistors which Ohmite has designed in both radial leaded and SMD packaging. TP810 resistors are offered in 8 off-the-shelf resistance values ranging from 10-10K ohms at 5% tolerance and have been successfully tested at 100 Joules (watt/seconds) over a 100 millisecond pulse.
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