Precision, reliability, and compact design are essential in modern high-voltage power systems. Whether it’s driving GaN (gallium nitride) FETs in solar inverters or managing isolation in EV chargers, engineers need components that deliver flawless performance.
The Bourns SM91243L gate driver transformer combines advanced design-for-manufacturing (DFM) overmoldingwith fully automated production to offer consistent, high-isolation performance in a compact form factor.
Automated Manufacturing: Ensuring Precision and Reliability
Unlike traditional transformers that rely on manual winding, the SM91243L benefits from fully automated DFM overmolding. This approach offers:
- Repeatable quality: Every unit meets precise standards.
- High reliability: Reduced human error minimizes defects.
- Cost efficiency: Faster production cycles and lower labor costs.
Automation also ensures tight control over key parameters like interwinding capacitance (Ciw) and leakage inductance (Lk), which are critical for supporting the fast-switching speeds of modern GaN gate drivers.
In gate driver applications, the SM91243L safely transmits PWM (pulse-width modulation) signals and delivers gate bias power to the secondary side, making it ideal for high-performance power electronics.
A Compact Design with High Isolation
The SM91243L transformer is engineered for high-voltage reliability in industrial, automotive, and renewable energy systems. Key features include:
- Reinforced insulation for safe operation
- 10mm creepage and clearance distances
- High-voltage isolation up to 5kVDC
- Compliance with RoHS and REACH standards
Consistent performance is guaranteed thanks to automated manufacturing, giving engineers confidence in large-scale applications.
Cost-Effective, Scalable, and Efficient
Automation also reduces production costs while improving efficiency:
- Minimizes material waste
- Reduces labor costs
- Accelerates production for space-constrained designs
These advantages make the SM91243L suitable for data centers, robotics, and clean energy systems, where high-volume production and tight design tolerances are essential.
As the industry moves toward wide bandgap semiconductors like GaN and silicon carbide (SiC), compact high-isolation transformers like the SM91243L become crucial to unlock their full potential.
Seamless Integration with GaN Gate Drivers
The SM91243L is optimized for use with Allegro MicroSystems AHV85000 and AHV85040 GaN gate driver chipsets, making it a perfect fit for:
- Next-generation AC-DC converters
- High-efficiency DC-DC converters
- EV chargers and solar inverters
Engineers benefit from a smarter, safer, and more scalable power system when using these integrated solutions.
Key Takeaways
The Bourns SM91243L gate driver transformer combines automation, innovation, and compact design to deliver:
- High-voltage isolation for industrial, renewable, and automotive systems
- Reliable and repeatable performance through automated production
- Compact form factor ideal for space-constrained designs
- Optimized compatibility with GaN and SiC power devices
For engineers designing modern power systems, the SM91243L provides precision, efficiency, and scalability in one high-performance transformer.
