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Hobbyking 100amp OPTO ESC with 5 Amp External UBEC

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Hobbyking 100amp OPTO ESC with 5 Amp External UBEC

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Here's an ESC for those that like to push their equipment a little - hotliner and EDF pilot's this means you!

The Hobbyking 100amp ESC is Opto-isolated from the receiver, meaning that it has no internal UBEC to power your receiver and servos.

Historically, you would need to purchase either an external UBEC or a separate receiver battery to complete your power system when utilising an Opto-coupled ESC.

Not any more - We have a solution! This ESC is supplied with a pre-wired 5amp external UBEC, not just any UBEC, this is jumper adjustable to provide 5, 5.5 or 6 volt output to your radio equipment. The UBEC is wired directly to the battery input cables to the ESC.

This arrangement will add a margin of safety to high powered (or highly strung) models. In the event that the ESC was to fail, the receiver and servos will remain powered and the pilot should be able to land his model safety.

The only incident this system won't safeguard you against is Lipo cell failure - Always be sure your Lipo's are up to the task at hand and that you are drawing less than their rated 'C' current.

User programmable features:
Brake Setting: On/Off
Setting for battery type: LiPo  or NiCd /NiMh
Low-voltage protection : low / medium / high
Motor timing setting: low/medium/high
Start up type: soft/medium/hard
Mode: Normal or Helicopter mode
Motor rotation: cw/ccw
PWM operating frequency: 8KHz / 16KHz
LVP type: slow down or dead cut

Continuous current: 100A
Max current (10 seconds): 150A
Input Voltage: 2-6s LiPo (7.4- 22.2v)  / 5-18 NiMh
BEC type: OPTO/UBEC 5amp (external)
Standard configuration: 5.5V/5A (external)
Jumper setting: 5/5.5/6 volts
Dimensions: 70*32*20 mm

  • HK Opto UBEC
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David | Verified Buyer

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Customer Rated

Jul 19, 2013

You get what you pay for?
Mine worked for about 2 minutes. Then it suddenly died (no warning no explanation).
Now i need to go buy something new. Maybe choose something more expensive and hope it works for more than 2 minutes.

cody | Verified Buyer

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Customer Rated

Apr 21, 2013

Works great bought and had under estamated my setup plane pulls 95 amps and peeks well past the limits i know im messin with fire but its held up very well so far waiting for it to die on me its a great value the proper esc would cost more then plane is worth so if it dies it die.

CptNemo | Verified Buyer

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Customer Rated

Jan 05, 2013

Installed in a HK550 6S setup. The BEC fried on the third power up, as I was installing the electronics. I opened the heatshrink covering the BEC. A yellow surface mount capictor (I think), blew out. It shot a spark about 2' into the air! I clipped it off and threw it away and ordered the Turnigy 8A-15ABurst UBEC. So far so good with this one. I mis-clicked on the overall rating it should have been 2 Crowns.

microballoon | Verified Buyer

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Customer Rated

Jan 04, 2013

ENCORE aucune documentation !

AUCUNE indication concernant l'une ou l'autre carte de rglage.

On devine et on vole ainsi ou on jette le bidule la poubelle (ce serait peut-tre plus prudent, non ?)


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Spec and jumper settings Download [125]
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