The WPN4012H220MT is a shielded wire-wound SMD power inductor manufactured by Sunlord Electronics. Belonging to the WPN series, this component features a nominal inductance of 22μH, an inductance tolerance of ±20%, and a rated current of 0.9A. It is designed for efficient power management and energy storage applications in various electronic devices.
The inductor utilizes a shielded magnetic structure with a closed magnetic circuit, helping reduce magnetic flux leakage and electromagnetic interference (EMI). Its construction provides reliable inductance characteristics and supports stable operation in electronic power circuits.
The WPN4012H220MT features a maximum DC resistance of 0.679Ω and a typical DC resistance of 0.566Ω, helping reduce power losses during operation. Its saturation current is 1.05A, while the rated current is 0.9A, making it suitable for various low-power and medium-current power conversion applications.
This component has a self-resonant frequency of 7MHz and an inductance test frequency of 1MHz. Its electrical characteristics make it suitable for DC-DC converters, switching power supplies, voltage regulation circuits, and other power management applications.
The WPN4012H220MT features a compact 4.0 × 4.0 × 1.2mm surface-mount package, making it suitable for space-constrained PCB layouts and automated surface-mount technology (SMT) assembly. Its shielded design helps improve electromagnetic compatibility in densely populated electronic circuits.
The inductor operates across a temperature range of -40°C to +125°C, including self-heating, supporting reliable performance in various operating environments.
The Sunlord WPN4012H220MT is widely suitable for smartphones, set-top boxes, VR and AR devices, notebook computers, desktop computers, servers, portable gaming devices, GPS navigation systems, and multimedia electronics.
The component is supplied in tape-and-reel packaging, supporting automated pick-and-place assembly and high-volume electronic manufacturing.
Key Features:
- Manufacturer: Sunlord Electronics
- Part Number: WPN4012H220MT
- Product Series: WPN Series
- Product Type: Shielded Wire-Wound Power Inductor
- Inductance: 22μH
- Inductance Tolerance: ±20%
- Rated Current: 0.9A
- Saturation Current: 1.05A
- Maximum DC Resistance: 0.679Ω
- Typical DC Resistance: 0.566Ω
- Self-Resonant Frequency: 7MHz (Minimum)
- Inductance Test Frequency: 1MHz
- Package Dimensions: 4.0 × 4.0 × 1.2mm
- Construction: Wire Wound
- Shielding: Shielded Magnetic Structure
- Mounting Type: Surface Mount (SMD/SMT)
- Operating Temperature: -40°C to +125°C
- Packaging: Tape and Reel
Typical Applications:
- DC-DC converters
- Switching power supplies
- Power management circuits
- Voltage regulation circuits
- Smartphone power systems
- Set-top boxes
- VR and AR electronic devices
- Notebook and desktop computers
- Servers and computer peripherals
- Portable gaming devices
- GPS navigation systems
- Multimedia electronic equipment
The Sunlord WPN4012H220MT combines 22μH inductance, 0.9A rated current, and a shielded wire-wound construction in a compact 4.0 × 4.0mm SMD package. Its closed magnetic circuit, low DC resistance, and reliable electrical characteristics make it a practical solution for electronic manufacturers, hardware engineers, and procurement teams seeking dependable power inductors for modern electronic applications.
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