1. Discrete IGBT Product Range
Voltage ratings: 600V, 650V, 1200V; Current ratings: 5A to 100A; TO-220, TO-247, D2PAK packages; With or without integrated freewheeling diode; Automotive grade options available
2. Package Options
Each package style is optimized for specific power levels and assembly methods.
Comparison Table
| Package | Voltage | Typical Current | Mounting Type |
|---|---|---|---|
| TO-247 | 600V – 1200V | 30A – 100A | Through-hole |
| TO-220 | 600V – 650V | 10A – 50A | Through-hole |
| D2PAK / DPAK | 600V | 5A – 30A | Surface-mount |
| TO-252 | 600V | 3A – 20A | Surface-mount |
TO-247 Package
The TO-247 package offers excellent thermal performance for higher power discrete applications.
• Higher current capability up to 100A; Three-pin configuration with isolated tab; Suitable for through-hole assembly; Commonly used in switch-mode power supplies
TO-220 Package
The TO-220 package provides a cost-effective solution for medium-power designs.
• Current ratings typically 10A to 50A; Compact footprint; Widely available mounting hardware; Suitable for volume consumer products
3. Application Scenarios
Discrete IGBTs find use in a broad range of products where modular solutions may be too large or costly.
Consumer Electronics
Home appliances and consumer power systems use discrete IGBTs for efficient power conversion.
• Induction cooktops; Microwave ovens; Switch-mode power supplies; Air conditioner inverters
Automotive
Automotive-grade discrete IGBTs support various vehicle power electronics subsystems.
• Ignition systems; Electric vehicle on-board chargers; HVAC compressors; PTC heaters
4. Selection Guidelines
Choosing the right discrete IGBT involves evaluating several design parameters.
• Determine required collector current with derating; Select voltage rating with sufficient safety margin; Consider switching frequency and loss budget; Evaluate thermal resistance of package and heatsink; Verify short-circuit withstand requirements
5. Find the Right Solution for Your Application
Need reliable discrete IGBTs for your power supply or motor drive design? Browse TO-247 and TO-220 packaged IGBT transistors with various voltage and current ratings to match your application requirements.
6. Frequently Asked Questions
1：When should I use discrete IGBTs instead of IGBT modules?
Use discrete IGBTs when your power per phase is below approximately 10kW, when you need maximum design flexibility, when cost is a primary consideration, or when space constraints require a distributed component layout. Discretes are also preferred for low-volume production or prototyping where module tooling costs are not justified. For higher power levels or where assembly simplicity matters, modules are generally the better choice.
2：Can I parallel multiple discrete IGBTs for higher current?
Yes, discrete IGBTs can be paralleled to increase current capability, but you must ensure proper current sharing. Key considerations include using devices from the same manufacturing batch for matched parameters, symmetric PCB layout with equal trace lengths and impedances, common gate drive signals, and matched thermal conditions. Significant current imbalance between parallel devices can lead to thermal runaway and premature failure.
3：What is the difference between TO-247 and TO-220 packages?
TO-247 packages offer higher current and power handling with lower thermal resistance, making them suitable for higher power applications. TO-220 packages are smaller and lower cost but have lower current ratings and higher thermal resistance. TO-247 also provides more creepage distance for higher voltage isolation requirements. Choose based on your current rating, voltage class, thermal budget, and available board space.
