About the SimSurfing selection tools | Design Support Software SimSurfing

Considering all the things you need to think about when
selecting appropriate electronic components for a specific circuit configuration,
wouldn't you agree that design development resources are necessary?

You need expertise to select the right electronic components.
You also need to consider how multiple electronic components will behave in combination.
To achieve a good circuit configuration, you need to select optimally suitable electronic components.

Main functions of the selection tools

There are selection tools for a variety of circuit configurations, and you can utilize them when designing circuits.
By setting some simple conditions, you can identify electronic components that satisfy your criteria.
You can obtain selection suggestions that reflect the expertise gained from Murata’s extensive design research.

How to use the selection tools

Here we introduce the basics of how to use the selection tools, which are available for different types of circuit.

Medium voltage Capacitor Selection Tool
DC-DC Converter Design Support Tool
Noise Filter Design Support Tool Plus
Bias-T Inductor Design Support Tool
IC-Timing Device Search Tool
NTC Thermistor Performance Simulator
PTC Thermistor Performance Simulator

Medium voltage Capacitor Selection Tool

Here we will display the part numbers of capacitors optimized for high-frequency and high-voltage circuits.

1Select the usage conditions (applied voltage and current).
2Click the “Calculation” button.
The part numbers of the optimal capacitors are displayed.
3Display results for required number of components connected in series, number of components connected in parallel, mounting area, etc.

An operation manual is available.

The user’s manual contains many examples of how to use the tools, including detailed explanations of various tool functions such as displaying a graph of the permissible voltage or correspondence of user-defined loads to waveforms.

Total 11 pages, PDF format

Click here to download.

DC-DC Converter Design Support Tool

Here we will display the part numbers of power inductors and multilayer ceramic capacitors optimized for DC-DC converter circuits.

1Enter the operating conditions.
2Click the “Efficiency Calculation” and “Calculate” buttons.
Part numbers are displayed in order of highest efficiency [%].
3Display the results of a simulation using the selected power inductors.

An operation manual is available.

The user’s manual contains many examples of how to use the tools, including detailed explanations of circuit selection and other operations.

Total 37 pages, PDF format

Click here to download.

Demonstration video is available

Now we will explain the procedure for selecting power inductors that best match specified DC-DC converter operating conditions, using the DC-DC converter design support tool.

Click here for the demonstration video

Noise Filter Design Support Tool Plus

A noise filter matching the circuit conditions, as well as the frequency band where noise needs to be eliminated is generated automatically.

1Select the application, rated current/rated voltage, and target noise frequency band
2Configure a filter circuit for whose insertion loss you want to calculate and press the [Optimize] button
Display the results of a simulation using the selected part numbers.
3The insertion loss graph and mounting area with the specified circuits and configuration part numbers are displayed

An operation manual is available.

The user's manual contains a number of tool application cases including detailed introductions on how to change circuit configuration diagram item configurations.

Total 18 pages, PDF format

Click here to download.

Bias-T Inductor Design Support Tool

Here we will display PoC bias inductor combinations and part numbers optimized for bias-T circuits.

1Select the circuit and criteria.
2Set the rated current value.
3Click the "Optimize" button.
The optimal combination of inductors including part numbers is proposed.
4Display the results of a simulation of the selected inductors in combination.

An operation manual is available.

The user’s manual includes detailed introductions of tool functions such as circuits that can be simulated and board stray capacitance settings, and also provides numerous examples of tool usage.

Total 43 pages, PDF format

Click here to download.

Demonstration video is available

This video explains Bias-T Inductor Selection Tool operations in an easy-to-understand manner. Here is a brief explanation of the procedure on how to use our Bias-T Inductor Design Support Tool to automatically select PoC bias-T inductors that satisfy the criteria and filter the selection results.

Click here for the demonstration video

IC-Timing Device Search Tool

Search for part numbers of timing devices and circuit constants optimized for the IC you are using.

1Enter search conditions such as the IC manufacturer.
2Click the “Search” button.
3Display a list of part numbers of optimal timing devices.
4Display recommended circuit constants for the selected timing devices.
5You can immediately request free samples of the selected timing devices.

An operation manual is available.

The user’s manual contains many examples of how to use the tools, including detailed explanations of various tool functions such as entering search conditions.

Total 19 pages, PDF format

Click here to download.

NTC Thermistor Performance Simulator

Use simulations to compare the characteristics of ground circuits for NTC thermistors and resistors.

1Select the part number and circuit.
2Click the “Simulation” button.
3Click the “+” button. Perform steps 1 and 2 for a different part number.
Overlay a characteristics graph of the selected NTC thermistor circuit.
4Compare characteristics graphs of the selected NTC thermistor circuits in a single graph.

An operation manual is available.

The user’s manual contains many examples of how to use the tools, including detailed explanations of various tool functions such as changing simulation conditions.

Total 38 pages, PDF format

Click here to download.

PTC Thermistor Performance Simulator

Use simulations to compare the output voltage and temperature characteristics of ground circuits for PTC thermistors and resistors.

1Select the circuit conditions and part numbers.
2Click the “Start Simulation” button.
3Render a characteristics graph for the selected PTC thermistor circuit.

An operation manual is available.

The user’s manual contains many examples of how to use the tools, including detailed explanations of various tool functions such as optimizing a circuit.

Total 24 pages, PDF format

Click here to download.