yangjie

# Yangjie Technology Manufacturer Skill ## Overview Yangjie Technology is a Chinese semiconductor manufacturer specializing in discrete semiconductors including rectifier diodes, Schottky rectifiers, TVS diodes, and transistors. They are one of China's largest discrete semiconductor manufacturers. ## MPN Structure Yangjie MPNs follow industry-standard patterns: ### YJ-Prefixed Series (Proprietary) ``` YJ[SERIES][RATING][SUFFIX] | | | | | +-- Package code | +-- Voltage/current rating +-- YJ = Yangjie proprietary prefix ``` ### Standard Industry Parts ``` [SERIES][RATING][SUFFIX] | | | | | +-- Package code | +-- Specification code +-- Industry standard prefix (1N, MBR, SMBJ, etc.) ``` ### Example Decoding ``` YJ1N4007G | | | || | | | |+-- G = DO-41 package | | | +-- 7 = 1000V rating | | +-- 400 = Rectifier series | +-- 1N = Diode prefix +-- YJ = Yangjie prefix MBR1045CT | | ||| | | ||+-- T = TO-220 indicator | | |+-- C = Common cathode | | +-- 45 = 45V voltage | +-- 10 = 10A current +-- MBR = Schottky rectifier prefix SMBJ15A | | || | | |+-- A = Unidirectional | | +-- 15 = 15V standoff voltage | +-- J = SMB package indicator +-- SMB = TVS diode series ``` --- ## Product Lines ### YJ Series Rectifier Diodes | Pattern | Description | Current | |---------|-------------|---------| | YJ1N4001-YJ1N4007 | Standard rectifiers | 1A | | YJ1N5401-YJ1N5408 | Power rectifiers | 3A | ### MBR Schottky Rectifiers | Part | Current | Voltage | Package | |------|---------|---------|---------| | MBR1045 | 10A | 45V | TO-220 | | MBR2045 | 20A | 45V | TO-220 | | MBR3045 | 30A | 45V | TO-247 | | MBR1545 | 15A | 45V | TO-220 | | MBR2545 | 25A | 45V | TO-247 | **Format**: MBR[current][voltage] ### SMBJ TVS Diodes (SMB Package) | Part | Standoff | Clamping | Type | |------|----------|----------|------| | SMBJ5.0A | 5.0V | 9.2V | Unidirectional | | SMBJ5.0CA | 5.0V | 9.2V | Bidirectional | | SMBJ15A | 15V | 24.4V | Unidirectional | | SMBJ24A | 24V | 38.9V | Unidirectional | | SMBJ33CA | 33V | 53.3V | Bidirectional | **Suffix**: A = Unidirectional, CA = Bidirectional ### SMAJ TVS Diodes (SMA Package) | Part | Standoff | Type | |------|----------|------| | SMAJ5.0A | 5.0V | Unidirectional | | SMAJ15A | 15V | Unidirectional | | SMAJ24CA | 24V | Bidirectional | ### SS Series Schottky Diodes | Part | Voltage | Current | Package | |------|---------|---------|---------| | SS12 | 20V | 1A | DO-214AC | | SS14 | 40V | 1A | DO-214AC | | SS16 | 60V | 1A | DO-214AC | | SS24 | 40V | 2A | DO-214AC | | SS34 | 40V | 3A | DO-214AC | | SS54 | 40V | 5A | DO-214AC | **Format**: SS[current][voltage_code] ### SK Series Schottky Diodes | Part | Voltage | Current | Package | |------|---------|---------|---------| | SK34 | 40V | 3A | SMB | | SK36 | 60V | 3A | SMB | | SK54 | 40V | 5A | SMB | | SK56 | 60V | 5A | SMB | ### 2N Series Transistors | Part | Type | Application | |------|------|-------------| | 2N7002 | N-Channel MOSFET | Small signal | | 2N3904 | NPN | General purpose | | 2N3906 | PNP | General purpose | **Note**: 2N7002 is classified as MOSFET, not transistor. ### MMBT Series SMD Transistors | Part | Type | Equivalent | |------|------|------------| | MMBT2222 | NPN | 2N2222 | | MMBT3904 | NPN | 2N3904 | | MMBT3906 | PNP | 2N3906 | ### Bridge Rectifiers | Series | Description | Package | |--------|-------------|---------| | YJB | Single-phase bridge | Various | | YJDB | Single-phase bridge | DIP | --- ## Package Codes ### Diode Packages | Suffix | Package | Notes | |--------|---------|-------| | G | DO-41 | Standard axial | | S | SMD | Generic SMD | | FL | SOD-123FL | Flat lead | | L | SOD-123 | SMD signal | | A | DO-41 | Axial variant | ### MBR Package Codes | Suffix | Package | Notes | |--------|---------|-------| | CT | TO-220 | Common cathode | | PT | TO-247 | High power | | FCT | TO-220F | Isolated tab | | S | DO-214AB (SMC) | Surface mount | | D | DPAK | Medium power SMD | | DP | D2PAK | High power SMD | ### TVS Package Mapping | Prefix | Package | |--------|---------| | SMBJ | SMB (DO-214AA) | | SMAJ | SMA (DO-214AC) | ### Transistor Packages | Series | Default Package | |--------|-----------------| | 2N | TO-92 | | MMBT | SOT-23 | ### Bridge Rectifier Packages | Pattern | Package | |---------|---------| | YJB with S | MBS (mini bridge SMD) | | YJB/YJDB | DIP-4 | --- ## Standard 1N Series Voltage Ratings ### 1N400x (1A Rectifiers) | Part | Voltage | |------|---------| | 1N4001 | 50V | | 1N4002 | 100V | | 1N4003 | 200V | | 1N4004 | 400V | | 1N4005 | 600V | | 1N4006 | 800V | | 1N4007 | 1000V | ### 1N540x (3A Rectifiers) | Part | Voltage | |------|---------| | 1N5401 | 100V | | 1N5402 | 200V | | 1N5403 | 200V | | 1N5404 | 400V | | 1N5405 | 500V | | 1N5406 | 600V | | 1N5407 | 800V | | 1N5408 | 1000V | --- ## Handler Implementation Notes ### Pattern Matching ```java // YJ prefixed rectifiers "^YJ1N[0-9]{4}.*" // MBR Schottky rectifiers "^MBR[0-9]{4}.*" // TVS diodes "^SMBJ[0-9]+\\.?[0-9]*[AC]?.*" "^SMAJ[0-9]+\\.?[0-9]*[AC]?.*" // Schottky diodes "^SS[0-9]{2}.*" "^SK[0-9]{2}.*" // Transistors "^2N[0-9]{4}.*" "^MMBT[0-9]{4}.*" // MOSFETs "^2N7002.*" // Bridge rectifiers "^YJB[0-9]+.*" "^YJDB[0-9]+.*" // Standard diodes "^1N[0-9]{4}.*" ``` ### Series Extraction ```java // YJ prefix removed for series "YJ1N4007G" -> "YJ" // MBR base "MBR1045CT" -> "MBR" // TVS voltage "SMBJ15A" -> "SMBJ" "SMAJ24CA" -> "SMAJ" // Schottky "SS14" -> "SS" "SK34" -> "SK" // Transistors - specific series "2N7002" -> "2N7002" // MOSFET "2N3904" -> "2N" // MMBT "MMBT3904" -> "MMBT" // Signal diodes "1N4148" -> "1N4148" "1N914" -> "1N914" // Rectifier series "1N4007" -> "1N4xxx" "1N5408" -> "1N5xxx" ``` ### Replacement Logic ```java // Rectifier voltage upgrade "1N4007" can replace "1N4001-1N4007" // MBR: same ratings, different package "MBR1045CT" == "MBR1045S" (electrically) // TVS: bidirectional can replace unidirectional "SMBJ15CA" can replace "SMBJ15A" // (But A cannot replace CA in AC applications) // SS Schottky: same rating comparison "SS14" vs "SS24" - same voltage, different current // Transistor series "MMBT3904" == "2N3904" (different package) ``` --- ## Component Types | Pattern | ComponentType | |---------|---------------| | YJ1N*, MBR*, SMBJ*, SMAJ*, SS*, SK*, YJB*, YJDB*, 1N* | DIODE | | 2N* (except 2N7002), MMBT* | TRANSISTOR | | 2N7002 | MOSFET | --- ## Related Files - Handler: `manufacturers/YangjieHandler.java` - Component types: `ComponentType.DIODE`, `ComponentType.TRANSISTOR`, `ComponentType.MOSFET` --- ## Learnings & Edge Cases - **2N7002 is a MOSFET**: Despite the 2N prefix (usually transistors), 2N7002 is an N-channel MOSFET. Handler returns MOSFET type. - **YJ prefix**: Yangjie uses YJ prefix for their branded versions of industry standard parts (YJ1N4007 = 1N4007). - **MBR naming**: Format is MBR[current][voltage]. MBR1045 = 10A, 45V. MBR2545 = 25A, 45V. - **TVS polarity**: A suffix = unidirectional, CA suffix = bidirectional. Critical distinction for circuit protection. - **SS/SK current**: First digit is current (1-5A). SS14 = 1A/40V, SS34 = 3A/40V. - **Check suffix ordering**: When extracting packages from SS/SK, check longer suffixes (FL) before shorter (L). - **Bridge rectifier series**: YJB and YJDB are similar bridge rectifiers. YJDB typically in DIP package. - **1N series signal vs rectifier**: 1N4148 is a signal diode (different from 1N4xxx rectifiers). Check specific pattern first.