KEMET Software

KEMET Spice
KEMET Net List Files
KEMET FIT Calculator

KEMET Spice Software

KEMET Spice Software
Version 3.7.4x

The KEMET Spice program is freeware intended to aid design engineers in analyzing the performance of these capacitors over frequency, temperature, ripple, and dc bias conditions. The capacitor types include ceramic (MLCC), tantalum, polymer, and aluminum-polymer capacitor types. Each capacitor type behaves differently to the conditions of the circuit, some showing no changes to moderate changes, while others showing very large changes to these conditions. Although it is a stand-alone, Windows based program, it can create files that can be imported into some commercial versions of SPICE software. Setup / Installation File: If this is the first version of KEMET Spice being loaded on the targeted computer, or if the previous version is lower than 3.5.3, then you must use the setup program (9400 kBytes) to load the required .DLL and .OCX files into the System32 directory. Because it will write these files to the System32 directory and write to the registry, you will need administrative rights to load the program successfully. A "Freeware" declaration is in PDF format, adjacent to the setup download program. The instructional manual ("Instructions for KEMET Spice 3.7.4x.pdf") details the operation of this software. If you have a version of KEMET Spice of 3.5.3 or later, you can use the Update program (6517 kBytes) as the system files were already loaded and not changed since version 3.5.3.		NOTE - Windows Vista users: You must right-click on the downloaded setup file and choose “Run as administrator” to install.

KEMET Spice Software - Version 3.7.4x
KEMET Spice Software Update - Version 3.7.4x (Use the "Update" only if you have version 3.5.3x already on your system.)
KEMET Spice Software Manual - Version 3.7.4x
KEMET Spice Freeware Designation

Rev 3.7.42 (13 Jan 2010)

Modified ceramic ESR seed values for ceramics to represent actual ESR calculated, and show minimum ESR in parameter review and edit. Makes creation of seed tables easier.
Added High Temperature C0G (+457 part types) ceramic part types and reviewed.

Rev 3.7.41 (20 Dec 2009)

Added X8L (+61) and X8R (+158) ceramic dielectric part types and reviewed.
Added High Voltage C0G (+933) ceramic part types and reviewed.

Rev 3.7.4 (5 Dec 2009)

Included capability for ordering samples directly from KEMET Spice program - links to “myKemet” web site.
Corrected Combined Impedance calculation error in version 3.7.23.
Model creations:
- Added selection or exclusion of ceramics by dielectric
- Added “.CIR” file type to NetList
- NetList creation with “.END” or “.ENDS” closing line.
- Allows for single piece model creation for Cadence - creating individual *.txt, *.dcl, and *.dcm files.
- Single models created for multiple part types as read from optional 'Part List.XLS' file.
Eliminated L1R_10, L1R_20, L1R_60, L1C_10, L1C_20, and L1C_60 from available capacitance listing as these part types are not yet in catalog (Mil-PRF-49470 Ceramic Stacked Capacitors, F3114C 1/08).
Error in loading T494 tantalum:
- Was loading T495 product and listing it as T4945....
- Corrected by loading T491 product and changing PN prefix to T494....
Added LDE, 2220 surface mount film capacitors as preliminary to entire series.
Changing seed elements compared to original elements to define “Changed” status - if elements are reset to original dropped “Changed” status.
Modified Rth for 'MDx' series Film DIL A52, A54, and A58 packages.
Added warning to Ripple Current & Ripple Voltage vs. Frequency plots if ESR would increase with allotted temperature rise.
- This capability is based on power allowed and ambient ESR, but internal temperature rise will create increase in ESR.
- The Ripple Current vs. Temperature plots are based on power and ESR, but the ESR is adjusted to ambient plus incremental temperature rise.

Program Manual
This software has many capabilities that increase with each release and every attempt was made to detail the software and reveal its capabilities in this illustrated manual. It contains instructions on manipulating the temperature, voltages and frequency ranges. It shows the various plot types available as well as plots involving multiple pieces and combined impedances. Here is the 77 page manual to date:

View the KEMET Spice Software Manual - Version 3.7.4x

Part List.XLS
Here is the Excel spreadsheet of part numbers. It is a collection of part numbers used to guide the creation of models exported from KEMET Spice for the purpose of importing these models into the various commercial design programs. The intended location for this file is in the "CKTs" subdirectory of the directory where KEMET Sp.EXE is loaded (i.e., "C:\Program Files\KEMET_Spice\CKTs\"). These represent mostly decade values of many styles, dielectrics, voltage ratings, and sizes:

Download KEMET "KEMETSpicePartList.XLS"

KEMET Net List Files

KEMET Net List Files

The KEMET Spice program has the capability to create ASCII files for importing as models into commercial Spice software. The listing below will allow jumps to appropriate pages which will contain a listing of all models specifically created for that software or model format.

Click here for Ansoft
Click here for Cadence
Click here for Mentor
Click here for NetList
Click here for S_Parameters
Click here for Sigrity
Click here for SIMPLIS
Click here for Touchstone
Click here to download circuit diagrams (.jpg and .slb) "KEMETSpiceCircuitDrawings.zip"

KEMET FIT Calculator

KEMET FIT Calculator Software
Version 3.1.0

A method of predicting reliability based on stress and environmental factors has been available for many capacitor types. The calculations found in MIL-HDBK-217 (revision F) allow the ambient temperature, application bias, and environmental factors to create multipliers of established failure rates for many military part types. Based on the monitored reliability of the non-military, commercial part types, these same multipliers can be used to define a projected application failure rate. The failure rates are listed as “FIT” (failures in time), and “MTBF” (mean time before failure).

This calculator software is intended to follow the calculations spelled out in this handbook for the specific part types that KEMET manufactures: ceramic multilayer capacitors, solid-tantalum capacitors, and the latest, the solid-aluminum capacitors. Just enter the capacitance, the voltage rating, and the part type, and the calculations are immediate. Manipulate the temperature and the voltage to see the impacts instantly.

Download the FIT Calculator Software manual in PDF format to see the impact of each element of the program, or activate the Help screen to search for additional information on the calculations and all of the elements.

This software is applicable for Windows(95, 98, 2000 and XP) and NT. Please refer to the program for a revision history from previous versions.

Download KEMET FIT Software - Version 3.1.0 Once you have downloaded the application to your system, click on it to install it.

Add this file to update from previous versions without the need to have administrative rights (no dll or ocx files are copied to the system directory).

Download Quick KEMET FIT Update - Version 3.1.0

View the KEMET FIT Software Manual - Version 2.3.3 and higher (1,391K)
View the KEMET FIT Freeware Designation

NOTIFY ME OF CHANGES.