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Custom Magnetics

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With over 50 years of magnetics innovation, Bourns offers end-to-end design and manufacturing for custom transformers, inductors, and common mode chokes. Our global engineering teams leverage advanced simulation tools and rapid prototyping to deliver high-performance, application-specific magnetics — from single prototypes to full-volume production.

To begin, simply fill out our custom design worksheets and we will get in touch with you.


Rapid Prototyping • AEC-Q200 Certified • ANSYS Simulation • Global Manufacturing


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Trusted Across Diverse Applications

Proven in Real-World Designs

Engineering Drawings

Year Semiconductor Company IC Technology Application Bourns Part Number Reference
2024 TI GaN 4.4 kW String Inverter Common Mode Choke 047708
Double Boost Inductor 145451
Bidirectional Boost DC-DC Inductor 145452
PFC Inductor 145453
EMI Filter Inductor 145454
Inductor, Shielded, Powdered Iron SRP1038A-1R0M
Inductor, Drum Core, Ferrite SRN3015-100M
SMD Power Inductor, Shielded MS0311
TIDA-010938
2024 TI GaN 1.6 kW Micro Inverter Signal Line Ferrite Bead MH1608-601Y
Inductor, Shielded, Ferrite SRP6540-150M
Inductor, Wirewound, Ferrite SRF2012-361YA
PFC Inductor 145450
Common Mode Choke 047690
1.6 kW LLC Transformer 181923
Power Transformer 1: 1.3 PAD002-T764113S 
TIDA-010933
2025 TI SiC 10KW BiD T Type Inverter Boost Inductor B181108 D6665 V2 145814
WK 3260A Common Mode Choke 047684 
TIDA-01606
2025 TI GaN 600W GaN-based Single-Phase Cycloconverter Transformer B181134V1
Inductor 5uH B181125V0
Inductor, Drum Core, Ferrite, 33 uH, 3.7 A, 0.052 ohm, SMD SRR1210-330M
Inductor, Drum Core, Ferrite, 15 uH, 0.65 A, 0.4 ohm, SMD SDR0302-150ML
TIDA-010954
2025 TI GaN Universal Input, 500W Constant Current and Constant Voltage E-Bike Charger
PFC Inductor MAG-3001497
Flyback Transformer MAG-3001498
LLC Transformers MAG-3001499
LLC Inductors MAG-3001500
PMP41106