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YEP 120A HV (4~14S) Brushless Speed Controller (OPTO)

YEP 120A HV (4~14S) Brushless Speed Controller (OPTO)

98 Reviews

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Product Description

YEP ESC series offers a super smooth linear throttle response making them exceptional fixed-wing and helicopter ESCs. The features offered in this ESC are only matched by the most expensive European brands at a fraction of the cost. The super-smooth soft start, along with its ultra-high-resolution throttle response puts this ESC in a class of its own!

YEP ESCs are built with the highest quality components to ensure true-to-rating current handling and high-efficiency operation. Although quality is a tag line mentioned by many manufacturers you'll notice the difference the moment you remove the YEP ESC from the box.

All YEP ESCs can be programmed via an optional programming card or by transmitter stick inputs.

Features:
• HV capability for use with up to 14S (51.8V) LiPo
• Optional programming card for convenient setup
• ESC had separate programming lead built-in so there is no need to unplug from RX
• Super fine throttle resolution provides first-rate and highly accurate linearity
• Super smooth adjustable start-up mode
• Constant RPM mode (governor mode)
• Adjustable F3A brake.
• 3 steps adjustable normal EMF brake
• High anti-interference capability
• Low voltage cut-off protection with automatic adjustment for NiCd/NiMH/Li-Ion/LiPo/LiFePO4
• Soft cut-off option at low voltage slows motor RPM gradual rather than hard cutoff (LVC)
• Low voltage cut-off can be disabled
• Variable cut-off voltage / cell
• Active free-wheeling circuit allows for unlimited "partial load" capability
• LED status display
• Adjustable motor timing from 0° to 30°
• Blocked rotation protection (senses a jammed motor and stops motor rotation)
• Over-temperature protection and overload alarm
• Anti sparking circuit: reduces connection sparks
• Throttle signal loses protection. If the signal is lost for 3 seconds, the power will automatically cut-off.
• Safe power-on. (Motor will not start until throttle is returned to lowest position)

Specification:
Max Cont Current: 120A
Max Burst Current: 140A for 10 seconds
Input Voltage: 4-14 cells li-XX or 12-42 Ni-MH/Ni-Cd battery
BEC: None (OPTO)
PWM: 8~16 KHz
Max RPM: 240,000rpm for 2 Poles Brushless Motor
PCB Size: 68x53mm
Weight: 164g (including wires)

Recommended
YEP programming card required to access the full suite of programming options.

Product Specifications

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Reviews

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Ralf | Verified Buyer

Quality
Overall
Value

Gut und guenstig

Feb 28, 2021

An 12S und 70A tut er was er soll!
Motor Joker6360

leo | Verified Buyer

Quality
Overall
Value

werkt zeer goed

Dec 25, 2020

mijn esc van 300 dollar is opgebrand met een xpwr 40cc, vervangen door deze yep en nu heb ik geen problemen meer. Nice product, prijs kwaliteit veel beter

clarissima | Verified Buyer

Quality
Overall
Value

guter Preis, gute Qualität

Nov 25, 2020

In the first time the YEP 120A didn´t work. Therfore I asked for a new one. and I got it. The new YEP is now working very good. Thank you very much.

Ronald | Verified Buyer

Quality
Overall
Value

NOT EXACTLY!

Sep 17, 2020

SORRY PERFORMANCE
I purchased 2 for my large scale twin aircraft. On the first bench test, using a 12S (48V, 50.4 PEAK) battery pack, when the Aerodrive 6374/192 motor pulled 58 amps and the Temp Gauge showed 102 Degrees Fahrenheit, with plenty of cooling air, the first one burned up before I could shut it down. The second one would not reach a cruise power power setting and would shut down before I could get over 50 amps! I only need between 31 & 32 volts for 6000 RPM/Cruise.
This 48# aircraft needs 4800 watts to produce decent flight characteristics.
I've tinkered with the timing on the programming card. Motor has 12 winds.
All this should NOT be a problem for these controllers.
WELL THAT'S NOT THE CASE!

Mel | Verified Buyer

Quality
Overall
Value

Does not seem to recognise end point programming

Sep 15, 2020

Spent two weeks so far but cannot get this ESC to recognise the transmitter end points. Motor control only occurs over about 40% of throttle movement. It is not a transmitter problem.

E | Verified Buyer

Quality
Overall
Value

Good thing, but they don't write anything about full programming!

Aug 17, 2020

Programming with the card is not complete.

OzGhost | Verified Buyer

Quality
Overall
Value

This is my standard ESC for my scale models - flexible setup gives options for a slow start and is reliable

Jul 12, 2020

Have used these for many years - need a reliable and good governor for my scale models

nick | Verified Buyer

Quality
Overall
Value

Its been months and nothing has arrived

Jun 04, 2020

seriously its been ages and I have had nothing and they will not even give me tracking information.
0/10 would not use again.

Ján | Verified Buyer

Quality
Overall
Value

Good ESC

May 21, 2020

Good ESC with lots od settings. Work together with Turnigy G160/290kv. There are some issues to setup the ESC and engine (autotiming ect.) but this ESC is for good price.

Basti | Verified Buyer

Quality
Overall
Value

Perfect

May 14, 2020

Works well in my Logo690SX.
After calibrate and setup the Governor the Heli flies very well.

Manuals/Files

Customer files

HV dual regulator wiring diagram	Download [55]
sensorless ESC theory	Download [1357]
simple YEP programming.	Download [50]
How i mod my ESC	Download [400]
Manual for YEP Series of ESC	Download [184]