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

MBR Schottky Rectifiers

Format: MBR[current][voltage]

SMBJ TVS Diodes (SMB Package)

Suffix: A = Unidirectional, CA = Bidirectional

SMAJ TVS Diodes (SMA Package)

SS Series Schottky Diodes

Format: SS[current][voltage_code]

SK Series Schottky Diodes

2N Series Transistors

Note: 2N7002 is classified as MOSFET, not transistor.

MMBT Series SMD Transistors

Bridge Rectifiers

Package Codes

Diode Packages

MBR Package Codes

TVS Package Mapping

Transistor Packages

Bridge Rectifier Packages

Standard 1N Series Voltage Ratings

1N400x (1A Rectifiers)

1N540x (3A Rectifiers)

Handler Implementation Notes

Pattern Matching

// 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

// 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

// 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

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.