AMWPH4018S
High saturation current, low DC resistance, Excellent temperature stability
- Brand： Sunlord
- Size/Package： 4.0×4.0×1.8mm
- Parameter： 1.0-100μH
- Rated Current： 0.4-2.7A
- Package： SMD
- Operating Temp： -40℃~+125℃
- Applications： Infotainment system/LED Lighting/Airbag/ADAS
- Parameters
- Brand： Sunlord
- Size/Package： 4.0×4.0×1.8mm
- Parameter： 1.0-100μH
- Rated Current： 0.4-2.7A
- Package： SMD
- Operating Temp： -40℃~+125℃
- Applications： Infotainment system/LED Lighting/Airbag/ADAS
Automotive Power Inductors | AMWPH4018S
Product Introduction
Sunlord AMWPH4018S is the metric 4018 (4.0×4.0×1.8mm) member of the AEC-Q200 AMWPH automotive power inductor family. Ferrite plus precision winding with magnetic-glue full shielding achieves high power density with low DCR and strong DC-bias performance, sized for BMS, smart cockpit and ADAS mid-power rails from -55°C to +125°C.
Core Advantages
- High power density: 4018 platform balances 4×4mm footprint with 1.8mm height and up to 5.5A saturation current.
- Low DCR: from 30mΩ typical — less conduction loss in always-on automotive rails.
- Wide 1–100μH range: covers buck, boost and SEPIC filter values in one P/N family.
- Magnetic-glue full shielding: closed magnetic circuit keeps EMI low for ADAS and sensor supply units.
- AEC-Q200 + RoHS: automotive-grade reliability, halogen-free materials for global compliance.
Key Specifications
| Parameter | Value |
|---|---|
| Type | Power Circuits (Automotive) |
| Package Size | Metric 4018 |
| Operating Temperature | -55°C–+125°C |
| Environmental Compliance | Halogen-free, RoHS compliant |
| Inductance | 1μH–100μH |
| Tolerance | ±20% |
| DC Resistance (DCR) | 0.030 Ω–1.227 Ω (typ.) |
| Self-Resonant Frequency (SRF) | 6.4MHz–98MHz |
| Saturation Current (Isat) | 0.5A–5.5 A (typ.) |
| RMS Current (Irms) | 0.5A–3A (typ.) |
Cross Reference & Replacement
Cross-reference alternatives: Cyntec (global wire-wound benchmark, same pads), ROHM (100% footprint-compatible AEC-Q200 shielded inductors) and TAI-TECH (Taiwan supply chain option with competitive cost). AMWPH4018S matches their core electricals and shielding.
Applications
LED headlight drivers, ambient lighting, DRL
BMS, OBC, DC-DC converters
infotainment, instrument cluster, displays
ADAS modules, sensor supply units
FAQ
Q: Is AMWPH4018S pin-compatible with ROHM 4018 inductors?
A: Yes — metric 4018 footprint with 100% pad compatibility, matching DCR/Isat and shielding characteristics.
Q: What current can AMWPH4018S handle?
A: Saturation current 0.5–5.5A depending on inductance value; RMS current 0.5–3A.
Related Products
- → AMWPH3015S
- → AMWPH5030S
- → AMWPH6045S
- → Automotive Power Inductors
- → Power Inductors
- → Sunlord Products
- → All Inductors
- → Browse All Products
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