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Lib-electronic-components nichicon

Nichicon Manufacturer Handler Skill

install
source · Clone the upstream repo
git clone https://github.com/Cantara/lib-electronic-components
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/Cantara/lib-electronic-components "$T" && mkdir -p ~/.claude/skills && cp -r "$T/.claude/skills/manufacturers/nichicon" ~/.claude/skills/cantara-lib-electronic-components-nichicon && rm -rf "$T"
manifest: .claude/skills/manufacturers/nichicon/SKILL.md
source content

Nichicon Manufacturer Handler Skill

Overview

NichiconHandler manages Nichicon components including aluminum electrolytic capacitors, polymer capacitors, and supercapacitors (EDLC).

Supported Component Types

  • CAPACITOR
  • CAPACITOR_ELECTROLYTIC_NICHICON
  • CAPACITOR_FILM_NICHICON
  • SUPERCAP_NICHICON

MPN Patterns

Standard Grade

PrefixDescription
UUDxStandard grade
UUExStandard grade, higher voltage

High Temperature

PrefixDescription
UHSx125C high temp
UHEx135C high temp
UHWx105C high temp

Long Life

PrefixDescription
UESxLong life, standard grade
UEWxLong life, high ripple
UKLxExtra long life

Low Impedance

PrefixDescription
UPWxLow impedance
UPSxUltra low impedance

Polymer

PrefixDescription
PCJxPolymer, standard
PCSxPolymer, low profile
PCRxPolymer, high reliability

Miniature

PrefixDescription
UMAxMiniature, general purpose
UMDxMiniature, high temp

Photo Flash

PrefixDescription
PFxPhoto flash capacitors

Super Capacitors (EDLC)

PrefixDescription
JJDxStandard EDLC
JJSxHigh power EDLC

Package Code Extraction

Extracted from case code in MPN:

  • For U/PC series: 4th or 5th character indicates diameter
    • 04 = 4x7mm
    • 05 = 5x7mm
    • 06 = 6.3x7mm
    • 08 = 8x10mm
    • 10 = 10x12.5mm
    • 12 = 12.5x15mm
    • 16 = 16x15mm

Series Extraction

Returns human-readable series names:

  • "Standard Grade", "Standard High Voltage"
  • "125C High Temp", "135C High Temp", "105C High Temp"
  • "Long Life Standard", "Long Life High Ripple", "Extra Long Life"
  • "Low Impedance", "Ultra Low Impedance"
  • "Polymer Standard", "Polymer Low Profile", "Polymer High Reliability"
  • "Miniature General", "Miniature High Temp"
  • "Photo Flash"
  • "Standard EDLC", "High Power EDLC"

Replacement Logic

  • Must be same series and case size
  • Higher temperature rating can replace lower:
    • 135C -> 125C -> 105C
  • Long life series can replace standard series
  • Same voltage rating required

Test Patterns

When testing NichiconHandler:

  1. Use documentation tests for 
    matches()
    behavior
  2. Use assertions for 
    extractPackageCode()
    , 
    extractSeries()
    , null handling
  3. Instantiate directly: 
    new NichiconHandler()

Known Handler Issues

All issues fixed in PR #86