Entering Siemens Optical Components
The following table describes the part parameters required for optical devices when Siemens is the selected calculation model. This Siemens component model is based on Siemens Norm SN 29500-12, Edition 2008-02, Failure Rates of Components: Expected Values for Optical Components.
Parameter
Type
Description
Type
Choice List
The type of device. Choices vary by subcategory.
Secondary Type
Choice List
Required only for certain types of some subcategories.
The subtype of the device. Choices vary by subcategory.
Lambda Reference
Real
Required only for certain types of some subcategories.
The base failure rate to use.
Reference Junction Temp
Real
Required only for certain types of some subcategories.
The junction temperature to use in degrees C.
Activation Energy
Real
Required only for certain types of some subcategories.
The activation energy value to use in the Arrhenius equation.
Reference Ambient Temperature
Real
Required only for certain types of some subcategories.
The ambient temperature to use in degrees C.
Package Type
Choice List
Required only for certain types of some subcategories.
Indicates how the device is packaged. Choices are:
Hermetically Enclosed
Plastic
Construction
Choice List
Required only for certain types of some subcategories.
The type of construction. Choices are:
Standard
Thin Film
[Voltage Parameters]
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Required only for certain types of some subcategories.
For more information, see Voltage Parameters.
[Current Parameters]
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Required only for certain types in the LED, IRED, Laser Diode, Transmitter subcategory.
For more information, see Current Parameters
[Temperature Parameters]
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For more information, see Basic Temperature Parameters.