cosmo

# Cosmo Electronics Manufacturer Skill ## Overview Cosmo Electronics is a Taiwanese manufacturer specializing in optocouplers and photo interrupters. Their product lines use the "KP" prefix family. ## MPN Structure Cosmo MPNs follow these general patterns: ### KP Series (Phototransistor Optocouplers) ``` KP[SERIES][VARIANT][-SUFFIX] | | | | | +-- Optional: -1=DIP-4, C/S=SMD | +-- Variant letter (optional) +-- 4-digit series (e.g., 1010, 2010, 4010) ``` ### KPC Series (High Isolation) ``` KPC[SERIES][CTR-GRADE][PKG-IND][-SUFFIX] | | | | | | | +-- Optional suffix | | +-- Package indicator (S/G=SMD, T=SOP) | +-- CTR Grade: A/B/C/D +-- 3-digit series (e.g., 817, 357) ``` ### Example Decoding ``` KP1010-1 | | | | | +-- -1 = DIP-4 package | +-- 1010 = Single channel phototransistor +-- KP = Phototransistor optocoupler series KPC817C-1 | | | | | | | +-- -1 = DIP-4 package | | +-- C = CTR grade (200-400%) | +-- 817 = General purpose high isolation +-- KPC = High isolation optocoupler KPH121S | | | | | +-- S = SMD package | +-- 121 = High speed single channel +-- KPH = High speed optocoupler ``` --- ## Product Lines ### KP Series - Phototransistor Optocouplers | Series | Description | Channels | |--------|-------------|----------| | KP1010 | Single channel phototransistor | 1 | | KP1020 | Single channel (variant) | 1 | | KP2010 | Dual channel phototransistor | 2 | | KP4010 | Quad channel phototransistor | 4 | ### KPC Series - High Isolation Optocouplers | Series | Description | Output | |--------|-------------|--------| | KPC817 | General purpose, high isolation | Phototransistor | | KPC357 | Darlington output | Darlington | **Note**: KPC817 is functionally equivalent to Sharp PC817. ### KPH Series - High Speed Optocouplers | Series | Description | Channels | |--------|-------------|----------| | KPH121 | High speed single channel | 1 | | KPH141 | High speed dual channel | 2 | ### KPS Series - SMD Optocouplers | Series | Description | Package | |--------|-------------|---------| | KPS1010 | SMD version of KP1010 | SMD | | KPS2010 | SMD version of KP2010 | SMD | ### KPTR Series - Reflective Sensors | Series | Description | Type | |--------|-------------|------| | KPTR1200 | Reflective photo interrupter | Sensor | | KPTR1201 | Reflective photo interrupter | Sensor | --- ## CTR (Current Transfer Ratio) Grades For KPC817 series: | Grade | CTR Range | Application | |-------|-----------|-------------| | A | 80-160% | Highest gain | | B | 130-260% | High gain | | C | 200-400% | Medium gain | | D | 300-600% | Wide range | --- ## Package Codes ### Suffix-Based Packages | Suffix | Package | Notes | |--------|---------|-------| | -1 | DIP-4 | Standard 4-pin DIP | | C | SMD | Compact SMD variant | | S | SMD | Surface mount | | G | SMD | SMD variant | | T | SOP | Thin SOP variant | | -F | Lead-free | RoHS compliant | | -TR | Tape and reel | Packaging option | ### Default Packages by Series | Prefix | Default Package | |--------|-----------------| | KP | DIP-4 | | KPC | DIP-4 | | KPH | DIP | | KPS | SMD (always) | | KPTR | SMD (always) | --- ## Channel Count by Series | Series Pattern | Channels | |----------------|----------| | 1010, 1020, 817, 357, 121, 1200, 1201 | 1 | | 2010, 141 | 2 | | 4010 | 4 | --- ## Handler Implementation Notes ### Pattern Matching ```java // KP series: 4-digit series number "^KP\\d{4}.*" // KP1010, KP2010, KP4010 // KPC series: 3-digit series number "^KPC\\d{3}.*" // KPC817, KPC357 // KPH series: 3-digit series number "^KPH\\d{3}.*" // KPH121, KPH141 // KPS series: 4-digit series number "^KPS\\d{4}.*" // KPS1010, KPS2010 // KPTR series: 4-digit series number "^KPTR\\d{4}.*" // KPTR1200, KPTR1201 ``` ### Series Extraction ```java // Returns prefix + series number "KP1010-1" -> "KP1010" "KPC817C" -> "KPC817" "KPH121S" -> "KPH121" "KPS2010C" -> "KPS2010" "KPTR1200" -> "KPTR1200" ``` ### Package Extraction Logic ```java // Check for -1 suffix first "KPC817C-1" -> "DIP-4" // KPS series is always SMD "KPS1010" -> "SMD" // KPTR series is always SMD "KPTR1200" -> "SMD" // Check package indicators for KPC "KPC817CS" -> "SMD" // S = SMD "KPC817CT" -> "SOP" // T = SOP thin // Check variant letter for KP/KPH "KP1010C" -> "SMD" "KPH121S" -> "SMD" // Default packages "KP1010" -> "DIP-4" "KPC817C" -> "DIP-4" "KPH121" -> "DIP" ``` ### CTR Grade Extraction ```java // KPC series: letter after 3-digit number "KPC817A" -> "A" "KPC817B-1" -> "B" "KPC817CS" -> "C" // C is CTR, S is package ``` --- ## Component Types The handler maps to these ComponentTypes: | Prefix | ComponentTypes | |--------|----------------| | KP, KPC, KPH, KPS | IC, OPTOCOUPLER_TOSHIBA | | KPTR | IC, SENSOR | **Note**: Uses `OPTOCOUPLER_TOSHIBA` as the generic optocoupler type (historical naming). --- ## Cross-Reference / Equivalents | Cosmo | Equivalent | Notes | |-------|------------|-------| | KPC817 | Sharp PC817 | Pin-compatible | | KPC817 | Toshiba TLP817 | Pin-compatible | | KPC357 | Sharp PC357 | Darlington output | --- ## Related Files - Handler: `manufacturers/CosmoHandler.java` - Component types: `ComponentType.IC`, `ComponentType.OPTOCOUPLER_TOSHIBA`, `ComponentType.SENSOR` --- ## Learnings & Edge Cases - **CTR grade vs package indicator**: For KPC series, the first letter after digits is CTR grade (A-D), subsequent letters may be package indicators (S/G/T). Order matters. - **KPS always SMD**: The KPS prefix indicates SMD package regardless of any suffix. - **KPTR is a sensor**: KPTR series are reflective sensors, not optocouplers. They map to SENSOR type. - **Channel count from series**: 1010/1020 = single, 2010 = dual, 4010 = quad. The first digit often indicates channel count. - **Replacement compatibility**: Same series with different packages (DIP vs SMD) are not direct replacements due to footprint differences. <!-- Add new learnings above this line -->