Entering Telcordia Semiconductors
The following table describes the part parameters required for semiconductors when a Telcordia model is selected for the calculation. Only the Telcordia Issue 3 model supports the HBT subcategory for semiconductors.
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Parameter
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Type
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Description
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Quality Level
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Choice List
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The quality screening level used in the manufacturing of the device. For more information, see Telcordia Quality Levels.
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Type
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Choice List
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Required only for the following subcategories: Alphanumeric Display; Diode; GaAs FET; HBT (Telcordia Issue 3 only); Microwave Diode; and Transistor.
The type of device. Choices vary by subcategory.
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# of Characters
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Integer
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Required only for the Alphanumeric Display subcategory.
The number of characters in the display.
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Application
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Choice List
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Required only for the following subcategories: Microwave Power Transistor, Microwave Transistor, and Si FET.
The application for the device. Choices vary by subcategory.
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Package Type
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Choice List [Prior to Telcordia Issue 1]
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Indicates how the chip is packaged. Choices are:
• Hermetic
• Non-Hermetic
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[Current Parameters]
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Real (Amps)
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Required only for the following subcategories: Diode (General Purpose type), Microwave Diode (Detector and Mixer types), and Thyristor. The parameters shown depend on the calculation method selected.
For more information, see Current Parameters.
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Power Rating
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Real (Watts)
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Not required if Method I Case 1 or Method I Case 2 is selected as the calculation method.
For other calculation methods, required only for the following subcategories: Diode (Voltage Regulator, Zener and Varistor types); GaAs FET; Microwave Diode (Varactor, Step, Tunnel type); Microwave Power Transistor; Microwave Transistor; Si FET; Transistor; and Unijunction Transistor.
The rated power of the device.
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[Voltage Parameters]
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Required only for the following subcategories: Diode (General Purpose type) and Transistor (Si NPN, Si PNP, and Ge NPN types).
For more information, see Voltage Parameters.
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[Temperature Parameters]
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Not required if Method I Case 1 or Method I Case 2 is selected as the calculation method.
For more information, see Basic Temperature Parameters.
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[Derating Parameters]
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For more information, see Derating Parameters.
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