AS1A4020

Product Introduction

Sunlord AS1A4020 is the low-DCR 4020 member of the 2025 AS1A automotive power inductor platform. Magnetic shielding plus closed magnetic circuit and AEC-Q200 qualification deliver efficient 1–100μH filtering for LED headlights, BMS, OBC and DC-DC rails from -55°C to +150°C.

Core Advantages

• Low DCR from 27mΩ: high efficiency across mid-power automotive rails.
• 1–100μH wide coverage: one footprint for buck, boost and filter values.
• Isat up to 6.5A: strong DC-bias performance in the 4020 class.
• Heat-resistant +150°C: 2025 AS1A platform for high-temperature environments.
• AEC-Q200 qualified: magnetic shielding, halogen-free, RoHS compliant.

Key Specifications

Cross Reference & Replacement

Cross-reference alternatives: TDK (same-size AEC-Q200 shielded wire-wound), Murata (globally stable automotive supply) and Fenghua Advanced (short lead-time alternative). AS1A4020 matches their pads and key electricals.

Applications

FAQ

Q: How efficient is AS1A4020?

A: DCR from 27mΩ typical with Isat up to 6.5A — low conduction loss in always-on rails.

Q: Is AS1A4020 drop-in compatible with TDK 4020 parts?

A: Yes — metric 4020 pads, comparable DCR/Isat and the same magnetic shielding with AEC-Q200.

Related Products

• → AS1A4010
• → AS1A4030
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