Frame Core Chokes SQ2119/3120/3125 Horizontal

Core Advantages

• 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.

Typical 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

SQ3120 Horizontal

SQ3125 Horizontal

Dimensions:[mm]