Teardown Report: DJI 140W GaN Charger Uses YMIN NPX Series Solid Capacitors

The ” Imprint” in DJI’s 140W Charger

Recently, ChargerLAB published a teardown report of the DJI Power 140W 2C1A GaN charger. As DJI’s first 140W GaN charger, this product adopts a PFC+AHB power architecture, supports PD3.1 140W output, is compatible with all DJI devices, and supports intelligent power allocation.

During ChargerLAB’s detailed teardown, a key discovery attracted industry attention— solid-state capacitors were used in the charger’s output filtering stage.

This allows capacitors to enter DJI’s high-power charging products within the drone ecosystem, providing component support for rapid power replenishment of DJI drones, action cameras, handheld gimbals, and other mobile imaging devices. This collaboration also marks a deep integration of , DJI, and drones in the high-end power supply field.

Disassembly List: Capacitors Confirmed

In the output filtering section, disassembly revealed that the DJI 140W charger uses multiple solid-state capacitors, specifically:

NPX Series: (Main Output Filtering Unit)

· 1 35V 330μF solid-state capacitor

· 2 35V 470μF solid-state capacitors

Image source: Charger teardown report

This series features miniaturization, low ESR, high ripple current tolerance, and high temperature resistance (105℃/2000H). Voltage ranges from 6.3 to 100V, and capacitance ranges from 2.2 to 10000μF. It effectively suppresses power conversion ripple, ensuring stable 140W high-power output.

LKF Series: (Automotive-grade long-life solution)

· One 35V 470μF liquid capacitor

This series supports a wide operating temperature range of -55℃ to 105℃, is AEC-Q200 automotive-grade certified, and boasts a lifespan of 7000~10000 hours at 105℃, making it suitable for demanding operating conditions with extremely high reliability and lifespan requirements.

The two series work together to balance ripple suppression capabilities for high-power output with long-term reliability, providing a solid guarantee for DJI chargers to deliver continuous and stable power under dynamic loads and high-temperature environments.

Beyond Drones

Capacitors’ High-Power Power Supply Landscape

This teardown showcases not only the application of capacitors in a charger, but also demonstrates the application potential of domestically produced capacitors in drone and high-end consumer electronics power systems.

Focusing on high power output, miniaturized design, multi-device power supply, and complex load switching requirements, solid-state capacitors can be further applied to: drones and their charging equipment/robot power systems/high-power gallium nitride chargers/action cameras and imaging equipment/outdoor power supplies/smart terminal adapters, and other high-power-density power products.

From the drone ecosystem to robotics, from mobile imaging equipment to high-power fast charging, continuously improves its capacitor solutions for different application conditions, providing complete selection materials, specifications, electrical performance test reports, and free samples for on-site verification.

【Abstract】

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“Applicable Scenarios”: “Drone chargers, high-power GaN fast chargers, robot power systems, outdoor power supplies, action camera/handheld gimbal charging devices, smart terminal adapters”,

“Core Advantages”: “Low ESR effectively suppresses output ripple, high allowable ripple current ensures stable 140W output, miniaturized design adapts to compact PCBA layout, 105℃/2000H long-life solid-state solution, AEC-Q200 automotive-grade certification handles harsh operating conditions with wide temperature range”,

“Recommended Models”: “NPX series: 35V 330μF 6.3×15mm, 36V 470μF 8×10mm; LKF series: 35V 470μF 10×16mm, 36V 471μF 12.5×14mm; VPX series: small size, high capacitance, 6.3×5.8mm standard package; VPT series: supports a wide temperature range of -55℃ to 125℃, ESR as low as 36mΩ; Multilayer polymer series: ESR as low as 3mΩ; KCX/KCG series: high-voltage input liquid aluminum electrolytic capacitors.