GDS65M12B1
650V 65A SiC MOSFET module with 18mΩ RDS(on), ideal for industrial drives and automotive DC-DC.
Product Overview
Description
650V 65A SiC MOSFET module with 18mΩ RDS(on). Silicon carbide technology for high-frequency operation.
Easy1B package with integrated NTC and low parasitic inductance. Supports switching up to 150kHz.
In stock for industrial and automotive applications. FAE support for gate drive and system design.
Product Series
650V SiC
Primary Application
Key Features
- Silicon carbide MOSFET with 18mΩ RDS(on) at 25°C
- Zero reverse recovery charge with SiC Schottky diode
- Ultra-high switching frequency: up to 150kHz
- Low switching losses for high efficiency
- Easy1B package with RthJC = 0.5K/W
- Integrated NTC temperature sensor
- 650V rating optimized for 400V systems
Specifications
| Voltage | 650V |
|---|---|
| Current | 65A |
| Rds On | 18mΩ |
| Switching Frequency | 150kHz |
| Package | Easy1B |
| Stock | In Stock |
| Slug | gds65m12b1 |
Applications
400V industrial drives
Industrial application for
Automotive onboard chargers
Industrial application for
DC-DC converters
Industrial application for
Power factor correction
Industrial application for
Solar optimizers
Industrial application for
FAE Expert Insights
"GDS65M12B1 is the optimal choice for 400V automotive and industrial applications. The 650V rating provides the right balance of performance and cost for these systems. Customers migrating from IGBT to SiC in 400V drives and onboard chargers see significant efficiency improvements and size reductions. The module's automotive qualification and proven reliability make it a safe choice for demanding applications."
Optimal for 400V systems
— Senior FAE, BeiLuo
Frequently Asked Questions
What is the recommended gate drive voltage for GDS65M12B1?
GDS65M12B1 is optimized for +18V turn-on and -3V to -5V turn-off gate drive: (1) +18V VGS(on) ensures low RDS(on) and minimizes conduction losses. (2) Negative turn-off voltage (-3V to -5V) is critical to prevent false turn-on due to high dv/dt. (3) Gate resistor selection affects switching speed and EMI - typical values are 5-12Ω for both turn-on and turn-off. (4) The gate drive should provide 4-8A peak current for fast switching. (5) Active Miller clamp is recommended for high dv/dt immunity. The 650V rating allows slightly lower gate resistance than 1200V devices.
Contact our FAE team for SiC gate driver IC recommendations and circuit design.
What is the thermal resistance of GDS65M12B1?
GDS65M12B1 in Easy1B package has the following thermal characteristics: (1) Junction-to-case thermal resistance RthJC = 0.5K/W. (2) Maximum junction temperature Tj(max) = 175°C. (3) Recommended operating junction temperature Tj(op) = -40°C to +150°C. For continuous operation at 65A with 18mΩ RDS(on), the conduction loss is 76W at 150°C. This requires a heatsink with thermal resistance of approximately 0.6K/W or better to maintain junction temperature below 150°C at 40°C ambient. Natural convection or light forced air cooling may be sufficient for many applications.
Contact our FAE team for thermal simulation and cooling system design.
Can GDS65M12B1 be used for automotive onboard charger applications?
Yes, GDS65M12B1 is excellent for automotive onboard charger (OBC) applications. Its characteristics make it ideal for this demanding application: (1) 650V rating is optimal for 400V battery systems (nominal 350V, max 450V). (2) 65A current rating supports OBCs up to 11-22kW. (3) 150kHz switching enables compact magnetics for onboard applications. (4) High efficiency reduces cooling requirements in space-constrained automotive environment. (5) AEC-Q101 qualified versions available for automotive applications. (6) Compact Easy1B package fits automotive form factors. The module is widely used in EV onboard charger designs.
Contact our FAE team for automotive OBC design support and AEC-Q101 qualification data.
What is the advantage of 650V rating vs 1200V for 400V systems?
GDS65M12B1's 650V rating offers significant advantages over 1200V devices for 400V systems: (1) Lower RDS(on) - 650V devices typically have 30-40% lower RDS(on) than 1200V devices for same die size, reducing conduction losses. (2) Lower cost - 650V devices are generally less expensive than 1200V equivalents. (3) Lower gate charge - faster switching with less gate driver power. (4) Optimized for 400V - adequate margin (1.5x) for 450V max battery voltage. (5) Better efficiency - lower switching and conduction losses. For 400V systems, 650V SiC is the optimal choice unless future-proofing for 800V systems is required.
Contact our FAE team for 650V vs 1200V SiC selection based on your system voltage requirements.
How does GDS65M12B1 compare to GDS50M12B1?
GDS65M12B1 and GDS50M12B1 serve different voltage requirements: (1) GDS65M12B1 (650V, 65A, 18mΩ) is optimized for 400V systems with higher current capability. (2) GDS50M12B1 (1200V, 50A, 25mΩ) is for 800V systems with higher voltage margin. GDS65M12B1 has lower RDS(on) and is more cost-effective for 400V applications. GDS50M12B1 provides voltage margin for 800V systems and better future-proofing. Both use the same Easy1B package and have similar thermal performance. Selection depends on system voltage and whether 400V or 800V architecture is used.
Contact our FAE team for SiC module selection based on your system voltage and current requirements.
What is the short-circuit capability of GDS65M12B1?
GDS65M12B1 has limited short-circuit withstand capability typical of SiC MOSFETs: (1) Short-circuit withstand time is typically 2-5μs vs 10μs for IGBT. (2) This is due to higher current density and faster thermal runaway in SiC. (3) Fast desaturation detection (<2μs) is critical for protection. (4) Soft turn-off is recommended to avoid overvoltage spikes. (5) Current limiting during startup and fault conditions is important. Starpower provides recommended protection circuits and desaturation detection guidelines. The fast switching of SiC helps in quickly limiting fault current.
Contact our FAE team for short-circuit protection design and desaturation detection circuits.