Shenzhen ZTW Model Science&Technology Co.,ltd
| BEC | 6V-8.4V(MAX 9V) |
| Size | 60*36*23mm |
| Signal Wires | 60C 150mm Brown/Red/Orange JR |
| Module | Backup Capacitor 25F |
| Weight | 41g |
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Product Specification
| BEC | 6V-8.4V(MAX 9V) | Size | 60*36*23mm |
| Signal Wires | 60C 150mm Brown/Red/Orange JR | Module | Backup Capacitor 25F |
| Weight | 41g | ||
| High Light | ZTW Backup Capacitor 25F ，8.4V ZTW Backup Capacitor ，6V Backup Capacitor | ||
ZTW Backup Capacitor 25F 6V-8.4V 25A Receiver Power Backup for RC Helicopter, Airplane and Fail-Safe Servo Power
Automatic Receiver Power Backup
If the ESC's BEC drops out or the main battery fails mid-flight, the Backup Capacitor instantly takes over, supplying power to the receiver and servos so the pilot retains control and can land safely instead of suffering a total flyaway or crash.
25 Farad Capacitance
The 25F supercapacitor bank stores enough energy to power standard receiver and servo setups for approximately 20-30 seconds depending on servo count and load — sufficient time to autorotate a helicopter or glide a fixed-wing to a safe landing.
6V-8.4V Input for 2S HV Systems
Designed for 6V to 8.4V BEC systems (max 9V), matching 2S LiFe, 2S LiHV, and high-voltage 7.4V/8.4V BEC setups common in 500-700 class RC helicopters and larger airplanes.
Two Activation Modes
The 3-pin orange signal wire supports two control methods: switch mode (manual arming via a transmitter channel) or automatic throttle-signal mode (50-600Hz detection), allowing flexible integration with different radio systems.
25A Burst Output
Delivers up to 25A instantaneous output to cover high-current servo spikes during control surface deflection, ensuring servos do not brown out even under heavy aerodynamic loads.
Compact 41g Package
At 60×36×23mm and 41g with a 60-core silicone JR lead, the unit mounts easily on a helicopter frame tray or inside a fuselage without significant weight penalty.
Fail-Safe for Professional Platforms
Beyond RC sport flying, the Backup Capacitor provides an additional layer of power redundancy for commercial UAVs and professional aerial platforms where a BEC brownout could result in equipment loss or mission failure.
Company Details
Business Type:
Manufacturer
Year Established:
2007
Total Annual:
>20 Million
Employee Number:
100~500
Ecer Certification：
Verified Supplier
About ZTW Shenzhen ZTW Model Science & Technology Co., Ltd. is a high-tech enterprise specializing in the R&D, manufacturing, and sales of brushless electronic speed controllers (ESCs) and propulsion systems for RC models, UAVs, and industrial applications. Since our founding in 2007, we hav... About ZTW Shenzhen ZTW Model Science & Technology Co., Ltd. is a high-tech enterprise specializing in the R&D, manufacturing, and sales of brushless electronic speed controllers (ESCs) and propulsion systems for RC models, UAVs, and industrial applications. Since our founding in 2007, we hav...
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