Manufacturers

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Jiangsu Macro Micro-Tech

Jiangsu Macro Micro-Tech

LocationChangzhou, Jiangsu, ChinaEstablished2006-08-18Registered capitalCNY212,884,185IndustriesNew Energy Vehicle PartsLast reviewed2026-08-22

Company profile

Jiangsu Macro Micro-Tech is a verified Chinese manufacturer in the new-energy vehicle supply chain. Its documented manufacturing scope includes Automotive-grade IGBT modules, SiC power modules, Power-semiconductor devices.

Products

Automotive-Grade IGBT Power Modules

Product overview

MacMic IGBT power modules span 600 V/650 V/750 V/1000 V/1200 V/1700 V voltage classes and use M3i/M4i/M6i/M7i micro-trench chip technologies, with flat-baseplate, copperless-baseplate and pinfin-baseplate packages. Topologies cover half-bridge, three-phase full bridge, three-level I-NPC/T-NPC, PIM power integration, six-pack rectifier, boost chopper and single switch. Certified to automotive grade, they suit new-energy-vehicle traction drives plus industrial and renewable-energy scenarios.

Key specifications

Voltage classes 600/650/750/1000/1200/1700 V; current 10–950 A; chip technologies M3i/M4i/M6i/M7i; packages flat baseplate/copperless baseplate/pinfin baseplate; topologies half-bridge/three-phase bridge/three-level I-NPC/three-level T-NPC/PIM/six-pack rectifier/boost chopper/single switch.

Applications
  • New energy vehicle traction drive
  • PV inverter
  • Energy-storage inverter
  • Industrial frequency converter
  • Welding machine
  • UPS power supply
Product evidence ↗

Hybrid SiC Power Modules

Product overview

Silicon-carbide hybrid modules integrate SiC diodes into IGBT power modules to form high-power-density integrated power modules. Compared with non-hybrid modules they offer lower switching losses and a higher operating temperature, making them suitable for high-power applications with strict efficiency and loss requirements. They use GHP/GWB packages, cover 650 V and 1200 V, and reach a junction temperature of 175 °C.

Key specifications

Voltage 650 V/1200 V; current 300/450/600 A; VCE(sat) 1.40–1.90 V; junction temperature 175 °C; packages GHP/GWB.

Applications
  • PV inverter
  • Energy-storage system
  • Charging pile
  • Industrial power supply
  • New energy vehicles
Product evidence ↗

SiC MOSFET Power Modules

Product overview

MacMic SiC MOSFET power modules use silicon-carbide MOSFET dies and deliver high-frequency, high-voltage and high-temperature operation for demanding, high-reliability scenarios such as automotive electric drives, charging piles and PV inverters. Packages include NV, NCB and SOT-227, with a 1200 V voltage class.

Key specifications

Voltage 1200 V; current 100–107 A; RDS(on) 1.57–13.4 mΩ; junction temperature 150/175 °C; packages NV/NCB/SOT-227.

Applications
  • Automotive electric drive
  • Charging pile
  • PV inverter
  • Energy-storage system
Product evidence ↗

Fast Recovery Diode (FRD) Power Modules

Product overview

MacMic fast recovery diode (FRD) power modules cover 200–1700 V voltage classes and use localized minority-carrier lifetime control technology, giving short reverse recovery time, low forward voltage drop, soft recovery behaviour and high avalanche capability. Package families include FS/FY/FJ/FN/FZ/FYB/FD, meeting the need for efficient rectification in industrial control and renewable energy.

Key specifications

Voltage 200/400/500/600/700/1200/1700 V; current 2x60 A–600 A; VF 0.90–3.00 V; trr 49–500 ns; packages FS/FY/FJ/FN/FZ/FYB/FD.

Applications
  • Frequency converter
  • Switching power supply
  • Welding power supply
  • UPS power supply
  • Industrial control power supply
Product evidence ↗

Rectifier Bridge Modules

Product overview

MacMic rectifier bridge modules are compact, carry high current and withstand high voltage; circuit configurations cover half-bridge, common-cathode, single-unit and three-phase rectifier bridges across 1600 V/1800 V/2000 V classes. Packages are extensive (DA/DAB/DE/DEB/DF/DFB/DL/DS) and are widely used in frequency converters, switching power supplies and medical power supplies.

Key specifications

Voltage 1600/1800/2000 V; current 50–300 A; IFSM 500–9000 A; packages DA/DAB/DE/DEB/DF/DFB/DL/DS.

Applications
  • Frequency converter
  • Switching power supply
  • Welding power supply
  • Medical power supply
Product evidence ↗

IGBT Discrete Devices

Product overview

MacMic IGBT discrete devices cover 650 V/1200 V and 10–140 A, using micro-trench chip technology for fast switching and strong short-circuit withstand capability. Packages include TO-247-3L/4L, TO-247 Plus-3L/4L, TO-247 LP-4L and TOLT, targeting PV inverters, energy storage, motor drives and charging piles.

Key specifications

Voltage 650/1200 V; current 10–140 A; VCE(sat) 1.45–2.15 V; packages TO-247/TO-247 Plus/TOLT.

Applications
  • PV inverter
  • Energy-storage system
  • Industrial power supply
  • Motor drive
  • Charging pile
  • Home appliances
Product evidence ↗

SiC SBD Discrete Devices

Product overview

MacMic silicon-carbide Schottky barrier diode (SiC SBD) discrete devices offer low switching loss, high-speed switching performance and excellent thermal behaviour, and are widely used in air conditioners, power supplies, photovoltaic generation systems and fast chargers for electric vehicles. The products are industrially certified and packaged in SOT-227 and TO-247-2L.

Key specifications

Voltage 1200 V; current 2x60 A/20 A; VF 1.4 V; IFSM 180/380 A; junction temperature 175 °C; packages SOT-227/TO-247-2L.

Applications
  • Air conditioner
  • Switching power supply
  • Photovoltaic generation
  • Electric vehicle fast charging
Product evidence ↗

SiC MOSFET Discrete Devices

Product overview

MacMic silicon-carbide MOSFET discrete devices deliver excellent high-frequency, high-voltage and high-temperature performance; replacing conventional silicon IGBTs in a system can raise switching frequency and power density while lowering total cost. The devices feature low switching loss, high operating junction temperature, low on-resistance and adequate ruggedness across a 1200 V voltage class. The product list is rendered dynamically by front-end JavaScript.

Key specifications

Voltage 1200 V; VGS,op -4/+18 V; junction temperature 175 °C; features low switching loss/low RDS(on)/high junction temperature; applications PV/energy storage/industrial power supply/new energy vehicles/motor drive/charging pile (see the official product list for specific part numbers).

Applications
  • PV inverter
  • Energy-storage system
  • Industrial power supply
  • New energy vehicles
  • Motor drive
  • Charging pile
Product evidence ↗

MOSFET Discrete Devices

Product overview

MacMic MOSFET discrete devices feature low on-resistance, fast switching and high avalanche capability, covering high-voltage, high-current scenarios. Packages include TO-247, TO-263 and TO-3PF, suited to switching power supplies, industrial power supplies and home-appliance lighting applications.

Key specifications

Voltage 1500 V; current 2.5 A; RDS(on) 9 Ω; PD 63 W; tf 61 ns; packages TO-247/TO-263/TO-3PF.

Applications
  • Switching power supply
  • Industrial power supply
  • Home appliances
  • Lighting
Product evidence ↗

FRED Discrete Devices

Product overview

MacMic FRED (fast recovery epitaxial diode) discrete devices cover 300–1700 V and 8–100 A with ultrafast recovery time and soft recovery behaviour, plus low reverse recovery charge, low leakage current and high avalanche energy. A broad package range (TO-220/TO-247/TO-3PB and others) supports welding machines, UPS, home appliances and charging piles.

Key specifications

Voltage 300/400/600/700/1000/1200/1700 V; current 8–100 A; VF 1.15–2.9 V; trr 17–50 ns; packages TO-220/TO-220C/TO-220F/TO-247/TO-3PB and others.

Applications
  • Welding machine
  • UPS power supply
  • Home appliances
  • Charging pile
  • Switching power supply
Product evidence ↗

Power Semiconductor Chips

Product overview

MacMic fast recovery diode chips use localized minority-carrier lifetime control technology for short reverse recovery time, low forward voltage drop, soft recovery behaviour and high avalanche capability, covering 200–1700 V and 4–400 A. The chips are supplied as bare die and are mainly used in IGBT module assembly and power device manufacturing.

Key specifications

Voltage 210/230/350/420/630/640/660/1260 V (bare die); current 2–75 A; VF 0.90–2.80 V; trr 20–90 ns; multiple die sizes available.

Applications
  • IGBT module assembly
  • Power semiconductor device manufacturing
  • Industrial control
  • Renewable power generation
Product evidence ↗

GV IGBT Modules

Product overview

The GV IGBT module is the automotive-grade power module series from MacMic built with M7i micro-trench chip technology, featuring a distinctive pinfin design and a high-thermal-conductivity baseplate, and focused on new-energy-vehicle traction drive. Recommended as a new product on the official website, the series combines low losses with high heat dissipation.

Key specifications

Chip technology M7i micro-trench; pinfin high-dissipation baseplate; positioning automotive grade/new energy vehicle traction drive; low losses and superior heat dissipation.

Applications
  • New energy vehicle traction drive
  • Charging pile
  • Industrial frequency conversion
Product evidence ↗

1700V GWB IGBT Modules

Product overview

The 1700V GWB IGBT module is a flagship MacMic product with low conduction voltage drop, high current density and excellent power cycling capability, and it uses a distinctive anti-sulfurization process design to extend reliability life. The series addresses demanding industrial scenarios such as high-voltage frequency converters, wind power and energy storage.

Key specifications

Voltage 1700 V; features low Vce(sat)/high current density/excellent power cycling capability; process distinctive anti-sulfurization design; long reliability life.

Applications
  • High-voltage frequency converter
  • Wind power generation
  • Energy-storage system
  • Industrial power supply
Product evidence ↗

GWQ IGBT Modules

Product overview

The GWQ IGBT module uses MacMic M7i chip technology to combine low Vce(sat) with low switching losses; the representative part MMG600WQ100PD6T7 is a 1000 V/600 A three-level I-NPC module. The series suits efficient power conversion scenarios such as PV inverters and energy-storage inverters.

Key specifications

Chip technology M7i; voltage 1000 V; current 600 A (representative part); topology three-level I-NPC; package GWQ/flat baseplate; VCE(sat) 1.80 V.

Applications
  • PV inverter
  • Energy-storage inverter
Product evidence ↗

IcyPack Series DSC Dual-Side Cooling Modules

Product overview

The IcyPack series DSC dual-side cooling module adopts a Double Side Cooling structure that markedly improves device current-output efficiency and integrates current and temperature sensors to precisely monitor device safety status. A flagship MacMic product, the series targets high-power-density, high-reliability new-energy and automotive-grade applications.

Key specifications

Structure dual-side cooling (DSC); feature improved current-output efficiency; integrated current sensor and temperature sensor; precise safety monitoring.

Applications
  • New energy vehicle traction drive
  • High-power-density inverter
  • Energy-storage system
  • Industrial frequency conversion
Product evidence ↗

Production evidence

Official or authoritative public materials confirm manufacturing capability for Automotive-grade IGBT modules, SiC power modules, Power-semiconductor devices.

This profile is based on confirmed public information. It is not an audit, certification or commercial endorsement.

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