The WE-MK series multilayer ceramic inductor in 0402 SMT package is designed for general-purpose electronic applications requiring compact size and stable inductance.

Key Technical Specifications

• Inductance (L) @ 100 MHz: 27 nH ±5 %
• Q-Factor @ 100 MHz: min. 8
• DC Resistance (RDC) @ 20 °C: max. 0.67 Ω
• Rated Current (ΔT = 20 K): max. 300 mA
• Self-Resonant Frequency (SRF): min. 1600 MHz

Temperature and Operating Conditions

• Ambient Temperature (reference to IR profile): -55 °C to +105 °C
• Operating Temperature Range: -55 °C to +125 °C
• Storage Conditions in Original Packaging: < 40 °C / < 75 % RH
• Moisture Sensitivity Level (MSL): 1

Compliance and Qualifications

• RoHS compliant according to EU 2011/65/EU & 2015/863
• REACh compliant (EC 1907/2006)
• Halogen-free per JEDEC JS709B and IEC 61249-2-21
• AEC-Q200 Grade 1 qualified

Package and Mounting Details

• Package Size: 0402 SMT
• Recommended land pattern available in the datasheet

Soldering Profile (Reflow)

• Pre-heat: Ts min 150 °C – Ts max 200 °C / 60–120 s
• Liquidus Temperature (TL): 217 °C, time above TL: 60–150 s
• Peak Temperature (Tp): ≤ 260 °C for components < 350 mm³
• Cooling rate: max. 6 °C/s

Packaging Information

• Tape & Reel packaging according to IEC 60286-3:2019
• Tape width: 8 mm; cover tape peel force: 0.1–1.0 N

Application Notes

This product is intended for general electronic applications only. It is not qualified for use in high-reliability or safety-critical systems (such as automotive, aerospace, medical, or nuclear equipment) unless specifically approved by the manufacturer. The user is responsible for verifying component suitability in the intended design.

Key Benefits for B2B Customers

With its compact 0402 form factor and high self-resonant frequency (≥ 1600 MHz), the 7447840127 inductor is ideal for miniaturized and high-frequency designs. Low DC resistance and stable inductance ensure efficient circuit performance. Full compliance with RoHS, REACh, and AEC-Q200 Grade 1 standards guarantees high quality, reliability, and long-term availability.