Rubycon ZLH 35V 1000uF Low-ESR Capacitor

The Rubycon ZLH is a low-ESR, 105°C-rated electrolytic capacitor that FPV builders solder across the ESC battery pads to soak up voltage spikes and electrical noise. Its 1000µF capacity and 35V rating suit 4S to 6S LiPo drones, giving cleaner power to the flight controller, video transmitter and camera.

Key features

• Low-impedance ZLH series — handles the high ripple current that switching ESCs draw.
• 35V rating — headroom above a fully charged 6S pack at 25.2V, plus the spikes motors kick back during braking.
• 105°C rating — tolerates the heat around ESCs and power leads.
• Less electrical noise — reduces the interference that shows up as lines in analog video and can upset the flight controller's gyro.

Specifications

• Capacitance: 1000µF
• Voltage rating: 35V
• Temperature rating: 105°C
• Type: aluminium electrolytic, low ESR
• Series: Rubycon ZLH
• Quantity: 1 capacitor

Mind the polarity: the stripe on the sleeve marks the negative leg. Solder it as close to the ESC pads as possible with short leads, and secure it with heat shrink or a cable tie so it cannot vibrate loose.