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Parameter
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Type
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Description
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|---|---|---|
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Applied DC Voltage
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Real (Volts)
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The DC voltage (VDC) applied to the capacitor.
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AC RMS Voltage
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Real (Volts)
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The AC RMS voltage (VAC) applied to the capacitor.
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Operating Voltage
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Real (Volts)
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The description depends on the part type.
• For diodes, the reverse diode voltage.
• For transistors, the applied Vce (Voltage, Collector to Emitter).
• For relays, the reverse relay voltage.
• For resistors, the operating maximum voltage.
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Rated Voltage
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Real (Volts)
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The description depends on the part type.
• For capacitors, the rated voltage (VDC) of the device.
• For diodes, transistors, and resistors, the rated voltage specified by the manufacturer.
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Voltage Ratio
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Real
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Generally, this field is left at #.#. For most parts, the voltage ratio is calculated as follows:
Voltage Ratio = (Operating Voltage / Rated Voltage) * 100
For capacitors, the voltage ratio is calculated as follows:
Voltage Ratio = [(√2 * AC RMS Voltage + Applied DV Voltage) / Rated Voltage] * 100
If you enter a value for this parameter, this value is used in place of a computed voltage ratio. When prediction calculations run, all parts with entered or calculated voltage ratios over 100 are flagged as overstressed parts. Overstressed parts appear in red in the System Tree Items table and Parts Table by default. Under Display in the Options window, the color in which to display overstressed parts is specified. For more information, see Display User Options.
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