lelon

# Lelon Electronics Manufacturer Skill ## MPN Structure Lelon MPNs follow this general structure: ``` [SERIES]-[CAP_CODE][TOLERANCE][VOLTAGE][TR][PACKAGE] | | | | | | | | | | | +-- Package code (0605=6.3x5mm) | | | | +-- TR=Tape and Reel | | | +-- Voltage code (1C=16V, 1E=25V) | | +-- Tolerance (M=20%, K=10%, J=5%) | +-- 3-digit capacitance code (101=100uF) +-- Series prefix (VE, VR, VZ, REA, REB, REC, OVZ, OVR) ``` ### Example Decoding ``` VE-101M1CTR-0605 | | | | | | | | | | | +-- Package: 6.3x5mm | | | | +-- TR = Tape and Reel | | | +-- 1C = 16V | | +-- M = +/-20% tolerance | +-- 101 = 100uF (10 x 10^1) +-- VE = Low Impedance series REA221M1CTR-0810 | | | | | | | | | | | +-- Package: 8x10mm | | | | +-- TR = Tape and Reel | | | +-- 1C = 16V | | +-- M = +/-20% tolerance | +-- 221 = 220uF (22 x 10^1) +-- REA = Radial Lead series (no hyphen after prefix) ``` --- ## Series Reference ### V-Series (with hyphen) | Series | Description | Application | |--------|-------------|-------------| | VE | Low Impedance | Power supply filtering, high ripple current | | VR | Standard | General purpose applications | | VZ | High Temperature | Automotive, harsh environments | ### RE-Series (radial lead, no hyphen) | Series | Description | Application | |--------|-------------|-------------| | REA | Radial Lead Type A | Through-hole general purpose | | REB | Radial Lead Type B | Through-hole standard | | REC | Radial Lead Type C | Through-hole compact | ### OV-Series (polymer, with hyphen) | Series | Description | Application | |--------|-------------|-------------| | OVZ | Conductive Polymer Z | Long life, high reliability | | OVR | Conductive Polymer R | High ripple current | --- ## Voltage Codes Voltage codes appear after capacitance and tolerance codes. | Code | Voltage | Code | Voltage | |------|---------|------|---------| | 0G | 4V | 1H | 50V | | 0J | 6.3V | 1J | 63V | | 1A | 10V | 2A | 100V | | 1C | 16V | 2C | 160V | | 1E | 25V | 2D | 200V | | 1V | 35V | 2E | 250V | | | | 2G | 400V | | | | 2W | 450V | --- ## Capacitance Codes Uses 3-digit EIA code for electrolytic capacitors (value in uF): | Code | Value | Calculation | |------|-------|-------------| | 100 | 10uF | 10 x 10^0 | | 101 | 100uF | 10 x 10^1 | | 221 | 220uF | 22 x 10^1 | | 470 | 47uF | 47 x 10^0 | | 471 | 470uF | 47 x 10^1 | | 102 | 1000uF | 10 x 10^2 | --- ## Package Codes Package codes are 4 digits indicating diameter x height in mm (DDLL format): | Code | Dimensions | Code | Dimensions | |------|------------|------|------------| | 0405 | 4x5mm | 1012 | 10x12mm | | 0505 | 5x5mm | 1016 | 10x16mm | | 0605 | 6.3x5mm | 1225 | 12.5x25mm | | 0607 | 6.3x7mm | 1315 | 13x15mm | | 0810 | 8x10mm | 1620 | 16x20mm | | 0811 | 8x11mm | 1825 | 18x25mm | --- ## Handler Implementation Notes ### Pattern Recognition ```java // V-series with hyphen: VE-, VR-, VZ- "^VE-[0-9]+.*" // Low impedance "^VR-[0-9]+.*" // Standard "^VZ-[0-9]+.*" // High temperature // RE-series without hyphen: REA, REB, REC "^REA[0-9]+.*" // Radial lead A "^REB[0-9]+.*" // Radial lead B "^REC[0-9]+.*" // Radial lead C // OV-series with hyphen: OVZ-, OVR- "^OVZ-[0-9]+.*" // Polymer Z "^OVR-[0-9]+.*" // Polymer R ``` ### Package Code Extraction ```java // Package code is the last 4 digits // VE-101M1CTR-0605 -> 0605 -> 6.3x5mm // Steps: // 1. Check last 4 chars for numeric pattern // 2. Map DDLL to diameter x height String lastFour = mpn.substring(mpn.length() - 4); if (lastFour.matches("[0-9]{4}")) { // Decode: 06 = 6.3mm diameter, 05 = 5mm height } ``` ### Series Extraction ```java // Check prefix to determine series type if (mpn.startsWith("VE-")) return "VE Low Impedance"; if (mpn.startsWith("VR-")) return "VR Standard"; if (mpn.startsWith("VZ-")) return "VZ High Temperature"; if (mpn.startsWith("REA")) return "REA Radial Lead"; // No hyphen // etc. ``` --- ## Replacement Rules The handler supports these replacement scenarios: 1. **VE can replace VR**: Low impedance can replace standard (better performance) 2. **VZ can replace VR/VE**: High temp can replace standard (wider temp range) 3. **OVZ/OVR can replace VR**: Polymer can replace standard (longer life) Package dimensions must match for any replacement. --- ## Related Files - Handler: `manufacturers/LelonHandler.java` - Component types: `CAPACITOR` - Supported types: CAPACITOR, IC --- ## Learnings & Edge Cases - **Hyphen placement**: V-series and OV-series use hyphen after prefix (VE-), but RE-series does not (REA) - **Package code position**: Always the last 4 digits of the MPN - **Voltage code position**: After capacitance (3 digits) and tolerance (1 letter) - **Tolerance codes**: M=20% (most common), K=10%, J=5% - **TR suffix**: Indicates tape and reel packaging <!-- Add new learnings above this line -->