SWPA4012S

Product Introduction

Sunlord SWPA4012S is a wire-wound SMD power inductor from the SWPA series in 4012 (4.0×4.0×1.2mm). Magnetic-glue coating provides shielding with very low buzz noise, and metallised electrodes add shock resistance; 0.82μH~100μH operates from -40°C~+125°C (including self-heating) in smartphone, TV, STB, notebook, car-navigation, VR/AR and LED-lighting DC-DC rails.

Core Advantages

• Wire Wound SMD Power Inductors (SWPA): 4012 (4.0×4.0×1.2 mm), 0.82–100 μH — magnetic-glue shielding with metallised impact-resistant electrodes and very low buzz noise.
• Low DCR, high current: DCR 0.05Ω~2.210Ω; saturation current up to 3.3A — high DC-bias performance in a 4012 body.
• Supply: YQM ELECTRONICS holds Sunlord stock with fast samples, datasheets and FAE support for volume programs.

Key Specifications

Cross Reference & Replacement

Cross-reference alternatives:

• TDK — A same-spec part from a globally recognized passive-component maker — compatible footprint, matched process and key parameters, stable worldwide supply; a proven drop-in for this application class.
• Murata — A same-spec part from a leading passive-component maker — matched core features such as magnetic shielding and low DCR; widely used as an alternative in the supply chain.
• Fenghua Advanced — A same-spec part from a leading Chinese passive-component maker — land-pattern compatible, ample domestic capacity, short lead times and strong cost-performance for localized BOM programs.

Applications

FAQ

Q: How is Isat / Irms defined for SWPA inductors?

A: Isat is the current at which inductance drops about 30 %; Irms is the current causing a 40 °C temperature rise (ΔT = 40 °C).

Q: Is SWPA4012S mechanically robust?

A: Yes — metallised electrodes and the magnetic-glue body improve shock resistance versus conventional molded parts.

Related Products

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