What ChangJing Elec Tech does

ChangJing Elec Tech (Jiangsu Changjing Electronics Technology Co., Ltd. / 江苏长晶科技股份有限公司) is a privately held Chinese power semiconductor IDM headquartered in Nanjing, Jiangsu Province, with a South China sales office in Shenzhen. Founded in 2018 and led by Chairman Yang Guojiang, the company operates an Integrated Device Manufacturer model covering the full supply chain — chip design, wafer fabrication, and packaging and testing — through its operating subsidiary Jiangsu Changjing Pulian Power Semiconductor. Its product portfolio spans discrete power semiconductors (diodes, bipolar transistors, MOSFETs in Trench/SGT/Planar/Super Junction variants, IGBTs, IPMs), third-generation wide-bandgap semiconductors (SiC MOSFETs, SiC SBDs, GaN HEMT), analog and power management ICs (CJ6216/CJ6214/CJ6213 LDO regulators, full Logic IC ecosystem), and supporting components (crystal oscillators, crystal resonators, thyristors, composite tubes).

The company serves four primary end markets — automotive electronics, industrial control, consumer electronics, and new energy — and has built a particularly deep automotive franchise with over 3,500 products certified to AEC-Q101 standards, batch-supplied to mainstream automakers and Tier 1 suppliers at million-level monthly shipment volumes for domain controllers, water pumps, oil pumps, motor drives, and BMS applications. Customer-facing capabilities are organized regionally across East/Central/North China (Mr. Chen, [email protected]), South China (Mr. Yang, [email protected]), a dedicated distributor/agent channel, and an overseas sales team (Summer Zhang).

Commercially, the company monetizes primarily through direct hardware sales of discrete semiconductor components and ICs to enterprise customers via field sales and authorized distributors, with quote-based pricing and no public price list. It has been named among the Top 10 Power Device Enterprises in China's Semiconductor Industry by the China Semiconductor Industry Association for six consecutive years (2019-2024), won the 2026 Annual Influential Automotive Chip award, and holds IATF16949, ISO9001/14001/45001/27001, QC080000, and GB/T29490 certifications alongside full RoHS, REACH, halogen-free, POPs, TSCA, and RBA/RMI conflict-mineral compliance. Strategic shareholders have included Oppo, Xiaomi, Haitong Capital, Huaye Tiancheng, and most recently Blue Sky Investment and the Jiangsu Energy Conservation and Environmental Protection Strategic New Industry Fund in a $13.9M round closed August 2025.

Name

ChangJing Elec Tech

Legal name

江苏长晶科技股份有限公司

Website

https://jscj-elec.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

51–100 employees

Short description

ChangJing Elec Tech is a privately held Chinese IDM power semiconductor manufacturer headquartered in Nanjing, producing discrete devices (diodes, MOSFETs, IGBT, IPM, SiC, GaN), LDO regulators, and logic ICs for automotive, industrial, consumer, and new-energy markets.

Ownership category

akta.pro rank

Product category

Power Semiconductors

NAICS

Semiconductor and Other Electronic Component Manufacturing (33441)

SIC

Semiconductors & Related Devices (3674), Electronic Components & Accessories (3670)

akta.pro primary industry

High-Voltage, Power Discretes & Modules (IGBT/MOSFET/SiC/GaN) (HDAHAAAK)

akta.pro secondary industries

Automotive & Industrial-Grade IDMs (HDAHAAAI), Power Management & Power ICs (HDAHAAAE), Power Modules (IGBT/MOSFET/SiC/GaN Modules) (HDAHAHAH)

Keywords

• Power semiconductor devices
• Discrete semiconductor components
• Automotive-grade MOSFETs
• Integrated device manufacturer
• Wide bandgap semiconductors

Headquarters

HQ city

Nanjing

HQ country

China

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Discrete Semiconductor Device Sales: Revenue primarily from manufacturing and selling discrete semiconductor components including diodes, bipolar transistors (triodes), MOSFETs, IGBTs, IPMs, third-generation semiconductors (SiC, GaN), logic ICs, crystal oscillators, crystal resonators, and SCRs (thyristors). Products sold through direct sales teams and distributor networks to consumer electronics, industrial control, automotive, and new energy end markets.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels3 records

Core offering

ChangJing Elec Tech is an IDM (Integrated Device Manufacturer) that designs, manufactures (chip design, wafer fabrication, packaging and testing), and sells discrete and integrated power semiconductor components. The portfolio covers diodes, bipolar transistors, MOSFETs (Trench, SGT, Planar, Super Junction, SiC), IGBTs, IPMs, third-generation semiconductors (GaN HEMT, SiC MOSFET, SiC SBD), LDO voltage regulators, Logic ICs, crystal oscillators, crystal resonators, and thyristors/SCRs, with over 3,500 products certified to AEC-Q101 automotive standard. These products are sold to automotive, industrial control, consumer electronics, and new energy applications.

Product overview

ChangJing Elec Tech (江苏长晶科技股份有限公司 / Jiangsu Changjing Electronics Technology Co., Ltd.) is a leading domestic IDM (Integrated Device Manufacturer) semiconductor company in China with full-chain capabilities spanning chip design, wafer fabrication, and packaging/testing. The company operates as a platform-plus-product-lines architecture offering comprehensive power semiconductor solutions. Core products include Diodes (including TVS, ESD, Schottky, fast recovery, and SiC SBD), Bipolar Transistors, MOSFETs (Trench, SGT, Planar, Super Junction, and SiC), IGBTs, IPMs (Intelligent Power Modules), and Third Generation Semiconductors (GaN HEMT, SiC MOSFET). The company has developed specific product lines including the CJ6216/CJ6214/CJ6213 LDO series for power management in HD camera applications, Logic ICs (HC/HCT, AHC/AHCT, AVC/AUP, AC/ACT, LV/LVC/LVT, CBTLV/CB3Q, GTL/TS/TB/LSF, 4000 series), and automotive-grade products (over 3,500 AEC-Q101 certified items). Additional offerings include crystal oscillators, crystal resonators, thyristors, and composite tubes. Products serve industrial control, consumer electronics, automotive electronics, and new energy sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Diodes Comprehensive portfolio of power diodes for power electronics applications including switching, rectification, protection (TVS/ESD), and wide-bandgap SiC variants, serving automotive, industrial, consumer, and new energy markets.
• Bipolar Transistors Bipolar junction transistors for signal amplification and switching circuits, including general-purpose, Darlington, digital, and dual-transistor configurations for industrial and consumer applications.
• MOSFETs Metal-oxide-semiconductor field-effect transistors for power switching across low to high voltage ranges, including advanced SGT, Planar, Super Junction, and SiC variants for automotive, industrial, and new energy applications.
• ICs (Integrated Circuits) Integrated circuits including LDO voltage regulators for power management and a complete Logic IC ecosystem covering logic gates, flip-flops, decoders, analog switches, buffers/inverters, oscillators, multiplexers, and level shifters, with industrial-grade -40°C to +125°C operating temperature range.
• IGBTs Insulated Gate Bipolar Transistors designed for high-power switching applications in motor drives, inverters, and power conversion systems across industrial and new energy markets.
• IPMs (Intelligent Power Modules) Intelligent Power Modules that integrate power devices with gate drivers and protection circuits, designed to simplify power system design for motor drives, inverters, and power conversion applications.
• Third Generation Semiconductors Wide-bandgap semiconductor products including GaN HEMT, SiC MOSFETs, and SiC SBDs designed for high-efficiency power applications in new energy, automotive, and high-voltage industrial systems.
• Automotive Electronics Product Line Automotive-grade semiconductor components certified to AEC-Q101 standard, including diodes, bipolar transistors, MOSFETs, and modules, serving automotive applications such as headlights, taillights, EPS, seats, smart cockpits, wipers, electric doors, pumps, fans, and thermal management systems.
• Crystal Oscillators and Resonators / Other Discrete Devices Additional discrete semiconductor and frequency control products including crystal oscillators, crystal resonators, thyristors/SCRs, and composite tubes combining multiple device types in single packages for various industrial and consumer applications.
• CJ6216 LDO Voltage Regulator Ultra-high PSRR and ultra-low noise LDO voltage regulator with 4.5µVRMS output noise and 98dB PSRR at 1kHz, designed for CMOS image sensor power supply in HD cameras for automotive ADAS, security surveillance, drones, and smartphones.
• AD-CJAN1R1SN04AH Automotive SGT MOSFET N-channel enhanced power MOSFET built on SGT advanced process, AEC-Q101 certified, with VDS=40V, ultra-low RDS(on) of 0.87mΩ, and 274A current rating, targeting automotive domain controllers, water pumps, oil pumps, motor drives, and BMS applications.
• Logic IC Product Series Complete Logic IC ecosystem covering HC/HCT, AHC/AHCT, AVC/AUP, AC/ACT, LV/LVC/LVT, CBTLV/CB3Q, GTL/TS/TB/LSF, and 4000 series, including logic gates, flip-flops, decoders, analog switches, buffers/inverters, oscillators, multiplexers, and level shifters, with industrial-grade specifications.

Quantifiable outcome

• Automotive MOSFET achieves only 24mV transient voltage deviation under 1µs/1mA→500mA load step, better than all competing products
• +3 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• China Semiconductor Industry Association (CSIA)minorOthers · 25 July 2025Deputy Secretary General Xu Dongmei and Secretary General of the Discrete Devices Branch Zhao Xiaoning led a delegation to visit the company's Jiangsu Changjing Pulian Power Semiconductor production base on July 25, 2025. Association leaders toured the exhibition hall and intelligent production line, reviewed the company's development history, core technology deployment, and strategic planning. They highly praised the company's achievements and encouraged alignment with national industrial strategy.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Silan Microelectronics (士兰微): Leading Chinese IDM with overlapping power discrete, MOSFET, IGBT, and power IC portfolio serving automotive, industrial, and consumer markets; closest domestic competitor to ChangJing across discrete power semiconductor categories.
• China Resources Microelectronics (华润微电子): Major Chinese power semiconductor IDM with full chain from design to packaging; directly comparable as a domestic alternative for automotive-grade MOSFETs, IGBTs, and power management ICs.
• JieJie Microelectronics (捷捷微电): Chinese specialty power discrete semiconductor maker focused on thyristors, MOSFETs, and protection devices; comparable product overlap in discrete power components for industrial and consumer applications.
• StarPower Semiconductor (斯达半导): Chinese specialist in IGBT power modules for automotive and industrial drives; directly comparable on automotive-grade power semiconductor qualification and IDM-style vertical integration for high-power applications.
• BYD Semiconductor (比亚迪半导体): In-house Chinese automotive power semiconductor arm of BYD producing IGBT, SiC, and MCU for EV applications; comparable automotive customer profile and Chinese domestic substitution positioning.
• Nexperia (闻泰科技子公司): Global leader in discrete power semiconductors (diodes, MOSFETs, bipolar transistors) now under Chinese ownership via Wingtech; directly comparable product portfolio in standard power discretes with massive scale advantage.
• Oriental Semiconductor (东微半导 / Oriental): Chinese power semiconductor specialist focused on high-performance MOSFETs including SGT and super junction technologies; highly comparable technology positioning in the automotive-grade discrete space.

Broad incumbents

• Infineon Technologies: Global #1 power semiconductor leader across MOSFETs, IGBTs, SiC, and power management ICs; benchmark for product breadth, automotive qualification depth, and technology roadmap that ChangJing competes against domestically.
• ON Semiconductor (onsemi): Global power discrete and analog IC supplier with strong automotive traction; comparable automotive-grade MOSFET and power management offerings that define the competitive frontier for ChangJing's auto products.
• Rohm Semiconductor: Japanese power semiconductor leader with strong SiC roadmap and automotive customer base; comparable on SiC MOSFET product positioning that ChangJing is building toward in its third-generation semiconductor line.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance14 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds3 records

Investors6 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ChangJing Elec Tech