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This tool provides you with a simple 3 steps for checking the basic and frequency characteristics of TDK electronic parts.
 STEP1 : Select a Category
Select a category in Step 1.
The TDK part series name currently contained in that category will be displayed to the right of the category name.

STEP1

 STEP2 : Search Parts
Step 2 enables you to narrow down the part list to be displayed in Step 3.
You can enter multiple items and an "and" search of those items is carried out. If you enter nothing here, all parts recorded in the current category will be displayed in Step 3.
By clicking the link to Step 1 at the top of the screen, you can always go back to Step 1.

STEP2

Basic Characteristics
Part No. Enter the characters contained in a part no. Wildcards (* or ?) cannot be used.
Size A list of sizes contained in the current category will be displayed in a pull-down menu, so make your selection.
Series Name A list of series names contained in the current category will be displayed in a pull-down menu, so make your selection.
Rated Current (mA) max. Enter a range of a maximum rated current.

For example, if you enter 100-200 in the input box, parts with a maximum rated current of 100mA or 150mA will be displayed but not for parts of 80mA.
Rated Voltage (V) max. Enter the range of the maximum rated voltage.

For example, if you enter 10-25 in the input box, parts with a maximum rated voltage of 16V or 25V will be displayed but not for parts of 50V.
DC Resistance (ohm) max. Enter the range of the maximum DC resistance.

For example, if you enter 0.5-1 in the input box, parts with a maximum DC resistance of 0.5ohm or 0.8ohm will be displayed but not for parts of 1.2ohm.
Temp. Characteristic A list of temperature characteristics contained in the current category will be displayed in a pull-down menu, so make your selection.

Frequency Characteristic
This step enables you to narrow down from the frequency characteristic.

Use the pull-down menu to select the characteristic you want to search and specify a range and frequency at that time. Specify the range including errors as the data applies to values actually measured.

For example, if you want to search for a part with impedance of 120ohm, setting "100<=Impedance/ohm<=140" allows you to run a search with good precision.
In search of S parameter (|S11| or |S12|, etc.), the reference impedance is 50ohm for 2-port parts and common mode 25ohm and differential mode 100ohm for 4-port parts.


 STEP3 : Display Characteristics
Step 3 is a main screen.
A list of parts narrowed down in Step 1 and 2 will be displayed in a tree view on the left of the screen. The characteristics of the parts will be displayed on the right of the screen.
By clicking the link to Step 1 or Step 2 at the top of the screen, you can always go back to each step.

STEP3

Selection of a part

This tool displays the basic and frequency characteristics of a selected part in the characteristic display area on the right of the screen by selecting a part. Expand a tree view on the left of the screen to select a part. If you select a part, the characteristic data on the right of the screen is updated immediately.

Drawing mode There are two radio buttons at the upper left of the screen that allows you to select a drawing mode. There are two drawing modes, "Overlap" and "Redraw".

If you select "Overlap", you can overwrite characteristics for up to four parts, so you can compare parts easily.
If you select "Redraw", the characteristics of the selected part only will be displayed.
Basic Characteristics Some basic characteristics will be displayed by category on the right of the main screen. By clicking the part no, you can display detailed data in compliance with JEITA. (Not all parts' detailed data can be displayed).

By clicking the "Delete" button, you can delete the part from the characteristic display. By clicking the "Delete all data" button, you can delete all the parts currently displayed from the characteristic display.
Characteristic Graphs 2-port parts can display a maximum of 27 kinds of frequency characteristics, and 4-port parts can display a maximum of 70 kinds.

Several frequency characteristics will be displayed by category on the right of the main screen. Clicking the "ZOOM" button displays an enlarged graph in a separate window.
More Graphs If you want to display frequency characteristics other than those displayed on the main screen, select one from the pull-down menu and click the "VIEW" button. An enlarged graph will be displayed in a separate window.


Enlarged graph

It is possible to set an axis of X/Y or change the reference impedance of the S parameter in the enlarged graph. It is also possible to display value data of the displayed frequency characteristics by clicking the "Display data" button. If you copy the displayed value data, you can process it using spreadsheet software or the like.

*Input a value of X-Axis(frequency) between 0 to 1E+9.
*Input a value of Y-Axis between -1E+9 to 1E+9.
*Input a value of reference impedance between 0(not contain 0) to 1E+9.


STEP3 : 2-port parts S parameter STEP3 : 4-port parts S parameter
[ 2-port parts S parameter ]                     [ 4-port parts S parameter ]


Meaning of 2-port S parameter
S11 the ratio reflected when signal is incided into Port 1
S12 the ratio transmitted to Port 1 when signal is incided in to Port 2
S21 the ratio transmitted to Port 2 when signal is incided in to Port 1
S22 the ratio reflected when signal is incided in to Port 2
U1 power scattering ratio when signal is incided in to Port 1
U2 power scattering ratio when signal is incided in to Port 2


Meaning of 4-port S parameter
Scc11 the ratio reflected in the common mode when common mode signal is incided into Port 1 and 3
Scc12 the ratio transmitted in the common mode to Ports 1 and 3 when common mode signal is incided in to Port 2 and 4
Scc21 the ratio transmitted in the common mode to Ports 2 and 4 when common mode signal is incided in to Port 1 and 3
Scc22 the ratio reflected in the common mode when common mode signal is incided in to Port 2 and 4
UC1 power scattering ratio when common mode signal is incided in to Port 1 and 3
UC2 power scattering ratio when common mode signal is incided in to Port 2 and 4
Scd11 the ratio converted to the common mode and reflected when differential mode signal is incided in to Port 1 and 3
Scd12 the ratio converted to the common mode and transmitted to Ports 1 and 3 when differential mode signal is incided in to Port 2 and 4
Scd21 the ratio converted to the common mode and transmitted to Ports 2 and 4 when differential mode signal is incided in to Port 1 and 3
Scd22 the ratio converted to the common mode and reflected when differential mode signal is incided in to Port 2 and 4
Sdc11 the ratio converted to the differential mode and reflected when common mode signal is incided in to Port 1 and 3
Sdc12 the ratio converted to the differential mode and transmitted to Ports 1 and 3 when common mode signal is incided in to Port 2 and 4
Sdc21 the ratio converted to the differential mode and transmitted to Ports 2 and 4 when common mode signal is incided in to Port 1 and 3
Sdc22 the ratio converted to the differential mode and reflected when common mode signal is incided in to Port 2 and 4
Sdd11 the ratio reflected in the differential mode when differential mode signal is incided in to Port 1 and 3
Sdd12 the ratio transmitted to Ports 1 and 3 in the differential mode when differential mode signal is incided in to Port 2 and 4
Sdd21 the ratio transmitted to Ports 2 and 4 in the differential mode when differential mode signal is input to Port 1 and 3
Sdd22 the ratio reflected in the differential mode when differential mode signal is incided in to Port 2 and 4
UD1 power scattering ratio when differential mode signal is incided in to Port 1 and 3
UD2 power scattering ratio when differential mode signal is incided in to Port 2 and 4

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