SGM450HF12B4TFD
1200 V / 450 A Silan SGM industrial half-bridge IGBT module in B4, 1.8 V VCE(sat), for large inverters and solar.
The SGM450HF12B4TFD is a 1200 V / 450 A Silan industrial IGBT module in the B4 half-bridge package, with a typical saturation voltage of 1.8 V. It delivers high current from a single half-bridge leg, which suits large inverters, central solar converters, UPS and industrial power supplies where paralleling smaller modules would add complexity and current-sharing risk. The B4 package combines a low-inductance internal layout with a large insulating substrate for effective heat spreading, and the low 1.8 V saturation voltage keeps conduction loss small at 450 A, which is a meaningful efficiency advantage in continuous-duty conversion. Two switches with their anti-parallel diodes form the half-bridge, and three modules build a three-phase bridge for large drives. Silan manufactures the chips in-house, keeping quality consistent. Every module is factory-traceable and ships with import declaration, certificate of origin and RoHS documentation. Because it is a high-current part, confirm busbar inductance, gate-drive strength and thermal design with our FAE team before layout sign-off. BeiLuo reserves supply against forecast volumes and confirms lead time before you commit.
FAE Professional Review
The SGM450HF12B4TFD is the module we recommend when a single leg must carry several hundred amps with low loss. The 1.8 V saturation voltage keeps conduction loss in check at 450 A, and the B4 low-inductance layout keeps turn-off overshoot manageable. At this current the busbar and gate loop dominate, so design them carefully.
| Parameter | Value |
|---|---|
| VCES (V) | 1200 V |
| IC (A) | 450 A |
| Topology | Half-bridge |
| Package | B4 |
| VCE(sat) typ (V) | 1.8 |
Application Circuits
Large industrial inverters
Reference circuits and application schematics for Large industrial inverters are available from our FAE team.
Central solar inverters
Reference circuits and application schematics for Central solar inverters are available from our FAE team.
UPS and power supplies
Reference circuits and application schematics for UPS and power supplies are available from our FAE team.
Need a reference schematic or design review? Our FAE engineers can share verified circuits and layout guidance for this part.
Related Documents
Alternative Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| SGM300HF12A3TFD | A3 | Lower-current 2-pack module in the same voltage class | View |
Complementary Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| SCDP120R013N2P4B | TO-247B-4L | SiC MOSFET for a high-frequency companion stage | View |
| SGT40N60NPFDPN | TO-247 | Discrete IGBT for auxiliary switches | View |
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Frequently Asked Questions
When should I choose the 450 A half-bridge module?
Choose it when one leg must carry several hundred amps and you want to avoid paralleling modules and managing current sharing, and when the low 1.8 V saturation voltage helps your efficiency target. It suits large inverters, central solar converters and UPS stages.
For lower current, the SGM300HF12A3TFD is more economical.
What busbar and gate design do I need?
High current demands a low-inductance laminated busbar and a stiff, low-inductance gate loop. Keep the commutation loop tight and measure turn-off overvoltage at the module terminals, not at the bus.
Our FAE team can review your layout.
Is lead time longer for high-current modules?
High-current modules can be allocation-managed, so confirm annual volume early. BeiLuo sources through Silan's authorized channel and reserves supply against your forecast.
Share your forecast for current lead time.