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Add : Room 701, Building A1, No. 55 Runfa Road, Jiangning District, Nanjing, China
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SQ2119/3120/3125 Horizontal
INF
Adopts flat wire winding + closed magnetic circuit structure, with low magnetic leakage, low distributed capacitance, and excellent high-frequency EMI suppression performance.
Low DC resistance (DCR) and good heat dissipation, enabling high current carrying capacity in a compact size.
Available in vertical and horizontal mounting types, highly adaptable to limited PCB space and thin‑design equipment.
Stable structure, strong anti‑vibration performance, high mechanical strength, and reliable welding.
Using high‑performance magnetic materials, with stable inductance, low loss, and long service life.
Fully compliant with RoHS environmental standards, suitable for automated mass production and industrial applications.
Switching Mode Power Supplies (SMPS) and power adapters
LED drivers and lighting equipment
Industrial control modules, inverters, and PLC systems
Consumer electronics such as monitors, audio equipment, and set-top boxes
Communication power supplies, server power, and UPS systems
New energy power modules and automotive electronics
Model Comparison Table
Test Condition:1KHz/0.3V AT(25℃)
Specifications and Electrical Characteristics
SQ2119 Horizontal
| INF Code | Inductance | Wire Diameter | Turns | DC Resistance | Applicable Enameled Wire Diameter | Operating Current | Applicable Power |
| SQ2119H-30mH | 4.0mH | 0.15*1.0 | 51 | 180mΩ MAX | 0.45 | 1.5～2.25A | 150～200W |
SQ3120 Horizontal
SQ3125 Horizontal
Dimensions:[mm]
| 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 |
