AS1A4020
High performance and high strength ferrite materials, high current and high reliability
- Brand： Sunlord
- Size/Package： 4.0×4.0×2.0mm
- Parameter： 1.0-100μH
- Rated Current： 0.5-3.4A
- Package： SMD
- Operating Temp： -55℃~+150℃
- Applications： ADAS/Infotainment system/LED Lighting/Airbag/Intemet of vehicle
- Parameters
- Brand： Sunlord
- Size/Package： 4.0×4.0×2.0mm
- Parameter： 1.0-100μH
- Rated Current： 0.5-3.4A
- Package： SMD
- Operating Temp： -55℃~+150℃
- Applications： ADAS/Infotainment system/LED Lighting/Airbag/Intemet of vehicle
Automotive Power Inductors | 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
| Parameter | Value |
|---|---|
| Type | Power Circuits (Automotive) |
| Package Size | Metric 4020 |
| Operating Temperature | -55°C–+150°C |
| Environmental Compliance | Halogen-free, RoHS compliant |
| Inductance | 1μH–100μH |
| Tolerance | ±20% |
| DC Resistance (DCR) | 0.027 Ω–1.260 Ω (typ.) |
| Saturation Current (Isat) | 0.57A–6.5 A (typ.) |
| RMS Current (Irms) | 0.55A–3.9A (typ.) |
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
LED headlight drivers, ambient lighting, DRL
BMS, OBC, DC-DC converters
infotainment, instrument cluster, displays
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
- → AS1A3010
- → Automotive Power Inductors
- → Power Inductors
- → Sunlord Products
- → All Inductors
- → Browse All Products
Contact YQM ELECTRONICS for fast samples, competitive pricing, and expert FAE support.
Contact YQM Customer Service
Copy product links
Long by picture save/share
Copyright By © YQM ELECTRONICS INTL LIMITED SITEMAP
Email: sales@yqmec.com
