Hobbywing
Platinum-120A-HV-PRO ESC belongs to Hobbywing's "Platinum" series products line,
it is the most significant top-class product for aircraft and helicopter.
*Hobbywing
ESC User Manual:

Features
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Hobbywing Platinum 120A-HV Pro
Brushless Electric Speed Controller ESC
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High performance
microprocessor brings out the best compatibility with all kinds of motors
and the highest driving efficiency.
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Wide-open heat-sink design to
get the best heat dissipation effect.
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With 3 types of start mode:
Normal / Soft / Very-Soft, compatible with aircraft and helicopter.
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Smooth, linear, quick and
precise throttle response.
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Multiple protection features:
Low-voltage cut-off protection / Over-heat protection / Throttle signal loss
protection.
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The throttle signal is
transfered through optically coupled system to avoid the electromagnetic
interference.
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Perfect governor mode for
helicopter.
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The firmware of the ESC can be
updated through the USB adapter on the Professional LCD Program Box.
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User programmable. Several
kinds of program methods are supported: transmitter, digital LED program
card, advanced professional LCD program box, PC software. Very easy to
program the ESC at home or at the flying field.
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Super powerful for 600 class
helicopter (Working with 8 or 10 cells Lipo battery)
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Very powerful for 700 class
helicopter (Working with 10 or 12 cells Lipo battery)
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Super powerful for large scale
aircraft such as F3A
Specifications
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Output: Continuous 120A, burst
180A up to 10 seconds.
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Input Voltage: 5-12 cells
lithium battery or 15-36 cells NIMH battery.
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BEC: None.
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Control Signal Transmission:
Optically coupled system.
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Max Speed: 210,000rpm for 2
Poles BLM, 70,000rpm for 6 poles BLM, 35,000rpm for 12 poles BLM. (BLM:
BrushLess Motor)
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Size: 88mm (L) * 55mm (W) *
15mm (H).
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Weight: 125g.
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