1. BYD IGBT Module Product Overview
BYD Microelectronics offers IGBT products in bare chip, discrete, and power module forms, covering 650V to 1700V voltage platforms. These modules are widely applied in industrial control, variable-frequency appliances, photovoltaic systems, energy storage, and new energy vehicles.
IGBT Module Form Factors
• Bare chips for custom integration; Discrete transistors in TO-247/TO-220; Power modules in 34mm and 62mm packages; Half-bridge topology for industrial applications; 650V-1700V voltage platform coverage
Key Electrical Parameters
• VCE(sat) as low as 1.65V at 25C; Eon values from 1.9mJ to 12.5mJ; Eoff values from 2.6mJ to 15.98mJ; Collector current from 50A to 150A+; Junction temperature up to 150C
| Part Number | Package | VCES(V) | IC(A) | VCE(sat)(V) | Topology | Grade |
|---|---|---|---|---|---|---|
| BG50B12UX3-I | 34mm | 1200 | 50 | 2.3 | Half-Bridge | Industrial |
| BG75B12UX4-I | 34mm | 1200 | 75 | 2.3 | Half-Bridge | Industrial |
| BG100B12UX4-I | 34mm | 1200 | 100 | 2.3 | Half-Bridge | Industrial |
| BG150B12UX2S-I | 34mm | 1200 | 150 | 2.3 | Half-Bridge | Industrial |
| BG150B12LX4-I | 34mm | 1200 | 150 | 2.05 | Half-Bridge | Industrial |
| BG150B12UY4-I | 62mm | 1200 | 150 | 2.3 | Half-Bridge | Industrial |
| BG150B12LY4-I | 62mm | 1200 | 150 | 2.1 | Half-Bridge | Industrial |
| BG150B12Y13S6 | 62mm | 1200 | 150 | 1.65 | Half-Bridge | Industrial |
2. Application Areas
BYD IGBT modules serve multiple high-power application segments, each with distinct requirements for voltage, current, and reliability.
New Energy Vehicles
• EV motor drive inverters; Electric power steering systems; On-board chargers and DC-DC converters; Regenerative braking energy recovery; 1200V platform for mainstream EV systems
Industrial and Energy
• Variable frequency drives for manufacturing; Photovoltaic inverters; Energy storage PCS systems; Industrial welding equipment; UPS and backup power systems
3. Package and Topology Selection
Selecting the right IGBT module package and topology depends on system power level, cooling method, and application requirements.
Package Options
• 34mm half-bridge for compact applications; 62mm half-bridge for higher power; Standard industrial grade qualification; Custom configurations available on request; Bare chip option for integrated designs
Topology Considerations
• Half-bridge for motor drives and inverters; Six-pack for three-phase motor control; PIM for integrated drive solutions; NPC for three-level medium voltage; CIB for compact appliance drives
4. Thermal and Reliability Design
Proper thermal management ensures long-term IGBT module reliability. BYD modules are designed for industrial-grade thermal cycling and power cycling performance.
Thermal Management
• Junction-to-case thermal resistance specifications; Heat sink design considerations; Thermal interface material selection; Air cooling vs liquid cooling trade-offs; Power cycling capability curves
Reliability Standards
• Industrial grade qualification testing; Temperature cycling validation; Power cycling endurance; Electrical overstress protection; Quality traceability throughout production
FAQ
1：What voltage platforms do BYD IGBT modules cover?
BYD IGBT modules cover 650V to 1700V voltage platforms, with 1200V being the most common for industrial and EV applications. The 650V platform serves lower voltage applications, while 1700V modules address higher voltage industrial systems.
2：What is the difference between BG150B12LX4-I and BG150B12UX4-I?
Both are 1200V 150A half-bridge modules in 34mm packages, but BG150B12LX4-I has a lower VCE(sat) of 2.05V compared to 2.3V for the UX4 variant, offering lower conduction losses at the expense of potentially different switching characteristics.
3：Are BYD IGBT modules automotive qualified?
BYD provides both industrial-grade and automotive-grade IGBT modules. The -I suffix indicates industrial grade. Automotive-grade modules undergo additional AEC-Q101 qualification testing. Contact BYD for automotive-grade part numbers.
