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The RM12 PFC choke is a high-frequency inductor specifically designed for active power factor correction (PFC) circuits in AC-DC power supplies. It plays a critical role in boost converter stages by shaping input current to follow the input voltage waveform, thereby improving overall power efficiency and reducing harmonic distortion.
Built with an RM12 ferrite core, this choke combines compact size, stable inductance characteristics, and reliable thermal performance, making it suitable for medium-power power supply applications.
RM12 ferrite core ensures efficient magnetic flux control
Compact design suitable for high-density PCB layouts
Stable inductance over temperature variations
Optimized core geometry for energy storage applications
RM core structures are widely used in inductors and filters due to their efficient use of PCB space and stable magnetic properties.
Active PFC circuits in AC-DC power supplies
LED drivers and lighting systems
Industrial and telecom power modules
Server and computing power supplies
EV chargers and energy conversion systems
PFC chokes are essential components in modern power electronics to improve efficiency and meet regulatory standards.
Physical Propertie
| Order Code | VIN | L (μH) | n | IR (A) | ISAT (A) | RDC1 max (mΩ) | RDC2 max (mΩ) | VT (V(AC)) |
| INF-RM12-150μH | 195-265V(AC) | 150 | 33:4 | 1.4 | 11 | 80 | 180 | 1500 |
| INF-RM12-200μH | 195-265V(AC) | 200 | 39:5 | 1.4 | 8.4 | 120 | 250 | 1500 |
| INF-RM12-300μH | 85-265V(AC) | 300 | 52:5 | 2.4 | 7.4 | 170 | 250 | 1500 |
| INF-RM12-450μH | 85-265V(AC) | 450 | 10:1 | 1.2 | 5.6 | 330 | 200 | 1500 |
Technical Specifications
| Main Category | Subcategory | Details |
| MOQ | Prototyping & Small-batch | 10 piece minimum order |
| Sample Service | Free proofing & custom service, 5 free samples (shipping at buyer’s cost) | |
| Bulk Order | 5,000 pieces and above with bulk pricing | |
| Lead Time | All Standard Components | Shipped within 5–7 working days |
| Custom Inductance / Pin Design (Sample) | Sample order confirmed within 5–7 working days | |
| Custom Inductance / Pin Design (Mass Order) | Shipped within 15–30 working days | |
| Payment Terms | Main Payment Term | T/T in advance, L/C at sight |
| Procurement Standard | Complies with global enterprise procurement standard for passive components | |
| Quality Deposit | No quality security deposit required | |
| Accepted Terms | FOB Shanghai / Nanjing / Hong Kong, T/T Advance | |
| Quality Assurance | Manufacturing Defects | Free replacement for issues caused by manufacturing defects |
| Inspection Report | Batch inspection reports available as certification upon customer request | |
| Packaging Specifications | Updated Packaging (2026) | Blister tray packaging; Sealed Tape & Reel for SMD products |
| Optional Packaging | Vacuum sealed packaging for customers with strict moisture-proof requirements |
