JR Servos - High Voltage

JR Servos - High Voltage

High Voltage Series

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  1. JR DS9411HV High Voltage Digital Mid MG Sx Servo
    $129.99
    JR DS9411HV High Voltage Digital Mid MG Sx Servo

    Features:

        High-Voltage (HV) servo with operating voltages up 8.5V (2S Li-Po)
        Extremely powerful and accurate - Perfect for jets, scale, high performance racing planes, competition sailplanes, and high performance electrics
        Composite alloy gear set for the ultimate in durability
        Zero deadband provides the legendary precision of JR

    Overview:

    For nearly as long as the JR name has been synonymous with unsurpassed control and feel, it has also been synonymous with compact, powerful servo designs. The latest generation of JR® servos is no exception. Offering the performance you expect, while also being optimized for use with the newest battery technology, this premium servo from JR is the mid-size digital DS9411HV that has ultra torque, metal gears and equipped to work directly with 2-cell lithium power packs.

    Imagine locating servos where no servo has gone before. Due to their compact size, these small digital ultra-torque servos are perfect in applications that require servos driven by space restrictions, such as those found in a jet, sailplane, pylon racers, or a complex scale model. Eliminate long accuracy-robbing linkages by locating servos closer to the point of operation.

    The DS9411HV servos are truly in a class of their own.

    Specifications:

    • Size Category: Minis and Micros
    • Type: Digital
    • Application: Aerobatic mid-size model scale model and sailplane
    • Torque: 92 oz-in (6.6 kg-cm) @ 7.4V (2S Li-Po)
    • Speed: 0.10 sec/60-deg @ 7.4V (2S Li-Po)
    • Length: 1.41 in (36mm)
    • Width: 0.71 in (18mm)
    • Height: 1.03 in (26mm)
    • Weight: 1.36 oz (38.6 g)
    • Bushing Or Bearing: Bearing
    • Bearing: Dual
    • Motor Type: Coreless
    • Connector Type: JR
    • Gear Type: Metal
    • Voltage: 6.0V-7.4V
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  2. JR DS398HV HV Digital Precision MG Thin Wing Servo
    $74.99
    JR DS398HV HV Digital Precision MG Thin Wing Servo

    Features:

    •     High-voltage application servo
    •     Low-profile for thin-wing applications
    •     Side-mounting lugs for easy installation
    •     Ultra-precision electronics
    •     Ideal for performance electrics, sailplanes and pylon models


    Overview:
    The DS398HV digital precison metal gear thin-wing servo offers class-leading holding torque, zero deadband and the legendary high resolution of JR® servos in a package that's ideal for high-performance sailplanes and electrics that require high-voltage application servos. By re-engineering certain internal components, the JR brand has improved upon the precision of the previous generation DS378HV servo to give the DS398HV servo the performance advantage JR customers demand.

    Specifications:

    • Size Category: Specialty
    • Type: Digital
    • Application: High-performance scale sailplanes, electrics and pylon models requiring High Voltage servos
    • Torque: 75 oz-in (5.4 kg-cm) @ 7.4V
    • Speed: 0.13 sec/60-deg @ 7.4V
    • Length: 1.18 in (30mm)
    • Width: 0.43 in (11mm)
    • Height: 1.14 in (29mm)
    • Weight: 0.7 oz (19.8 g)
    • Bushing Or Bearing: Bearing
    • Bearing: Dual
    • Gear Type: Metal
    • Voltage: High-voltage (direct 2S Li-Po/Li-Fe) compatible
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  3. DS390HV Digital Precision Micro Metal Gear Servo
    $49.99
    DS390HV Digital Precision Micro Metal Gear Servo

    DS390HV Digital Precision Micro Metal Gear Servo

    Features:

    •     High-voltage application servo
    •     Ultra precision electronics
    •     Thin and lightweight
    •     Ideal for performance electrics, sailplanes and pylon models
    •     Durable metal gear train


    Overview:

    The DS390HV digital high-voltage precision micro metal gear servo offers class-leading holding torque, zero deadband and the legendary high resolution of JR® servos in a package that's ideal for high-performance sailplanes and electrics requiring high-voltage application servos. By re-engineering certain internal components, the JR brand has improved upon the precision of the previous generation DS388HV servo to give the DS390HV servo the performance advantage JR customers demand.

    Specifications:

    • Size Category: Minis and Micros
    • Type: Digital
    • Application: High-performance scale sailplanes, electrics and pylon models requiring high-voltage servos
    • Torque: 75 oz-in (5.4 kg-cm) @ 7.4V
    • Speed: 0.13 sec/60 deg @ 7.4V
    • Length: 1.18 in (30mm)
    • Width: 0.43 in (11mm)
    • Height: 1.14 in (29mm)
    • Weight: 0.7 oz (19.8 g)
    • Bushing Or Bearing: Bearing
    • Bearing: Dual
    • Gear Type: Metal
    • Voltage: High-voltage (direct 2S Li-Po/Li-Fe) compatible
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  4. JR DS821HV HV Digital Sport High Torque
    $29.99
    JR DS821HV HV Digital Sport High Torque

    DS821HV HV Digital Sport High Torque

    Product Description

    Key Features

    • High Voltage (direct 2S LiPo/LiFe battery) compatible
    • Lower price point, but higher performance value
    • Longer-lasting plastic composite gear material
    • Ball bearing-supported output shaft

    Overview

    The JR 821HV is one of the latest updates for JR. Based on the original and successful DS821, it has the new high voltage motor allowing it to be used unregulated when using 2-cell Li-Po power source. The DS821HV servo is a powerful, accurate sport digital servo recommended for RC airplane applications up to 1.20-size. For helicopters, the DS821HV operates best with 30-size glow models and up to 500-size electric.

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  5. JR DS285MGHV Sub-Micro HV Digital
    $59.99
    JR DS285MGHV Sub-Micro HV Digital

    DS285MGHV HV Digital Hi-Torque Sub-Micro MG Servo

    Key Features

    • High Voltage application servo
    • Fast transit time for superb control responce
    • Extremely lightweight and small size, perfect for small electric, DLG sailplanes, and micro heli applications
    • Zero deadband provides legendary JR precision

    Overview

    The JR 285MGHV is part of the continuing development of HV servos for JR. Based on the original and successful 285, it has a new high voltage motor allowing it to be used unregulated when using 2-cell Li-Po or Li-Fe battery power. With the added performance generated by the new HV motor this servo is one of the most powerful in its class. Not only is it suitable for the many DLG sailplane configurations, it is also very suitable for many smaller EDF Jet offerings and the large variety of indoor models now available.

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  6. JR DS3711HV High Voltage Digital Mini Torque MG Servo
    $94.99
    JR DS3711HV High Voltage Digital Mini Torque MG Servo

    DS3711HV High Voltage Digital Mini Torque MG Servo

    Key Features

    • Designed for High voltage - Native 2S lipo operation Eliminates the need for a regulator
    • High performance Excellent power vs. size
    • Digital precision for Accuracy and performance
    • High torque
    • Metal gear train
    • JR's 3 year warranty

    Overview

    The JR 3711HV is the latest update for JR. Based on the original and successful 3421, it has the high voltage motor that allows it to be used unregulated when using 2-cell Li-Po power. With the added performance generated by the HV motor this servo packs quite a punch. Not only does its usage have many options, including many sailplane configurations, it is also very suitable for many of the Jet offerings now available to the market, especially the new and exciting EDF’s.

    Battery chemistries such as LiPo, LiIon, and LiFe have become very popular within the RC community. They are the standard for powering electric motors and have also gained popularity as receiver battery packs. The issue is the output voltage of these batteries is higher then the previous standard 4 - and 5-cell NiCd and NiMH packs, 4.8V and 6V respectively. The higher voltage is not an issue with the receivers but can be for the servos. Many servos will not operate at these higher voltages for very long before burning out the motors or electronics.

    To get around this issue modelers have had to use a regulator to drop the voltage to an acceptable operating range for their servos, usually around 5 to 6 volts. The addition of a regulator adds a component that, should it fail, can cause the loss of a model.

    JR’s HV servos are designed with motors and electronics that operate off the direct voltage of a 2-cell LiPo, LiIon, or LiFe receiver battery pack (6.6V to 7.4V nominal voltage). This eliminates the need for a regulator and lowers the chance for a power failure that can cause a catastrophic failure of your model. Also note that the HV servo specs are shown at the higher voltage (7.4V 2S LiPo) but will still operate on a standard 5-cell 6V NiCd, Ni MH battery with a reduction in performance of approximately 10% in speed and torque.

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  7. JR DS8911HV Ultra Torque Servo
    $149.99
    JR DS8911HV Ultra Torque Servo

    Discontinued: See Replacement JRPSNX8931

    DS8911HV Ultra Torque Servo

    Key Features

    • Designed for high voltage native 2S Li-Po operation
    • Digital precision for increased accuracy and performance
    • Provides high torque for large aircraft in a standard-size servo package
    • Metal gears provide longer life cycle and a higher level of durability

    Overview

    The 8911HV servo is the perfect option for pilots who want the outstanding performance of JR's legendary servos without the high cost.  The 8911 provides impressive torque for giant-scale applications and is covered by JR's outstanding 3-year limited warranty.

    Battery chemistries such as LiPo, LiIon, and LiFe have become very popular within the RC community. They are the standard for powering electric motors and have also gained popularity as receiver battery packs. The issue is the output voltage of these batteries is higher then the previous standard 4 - and 5-cell NiCd and NiMH packs, 4.8V and 6V respectively. The higher voltage is not an issue with the receivers but can be for the servos. Many servos will not operate at these higher voltages for very long before burning out the motors or electronics.

    To get around this issue modelers have had to use a regulator to drop the voltage to an acceptable operating range for their servos, usually around 5 to 6 volts. The addition of a regulator adds a component that, should it fail, can cause the loss of a model.

    JR’s HV servos are designed with motors and electronics that operate off the direct voltage of a 2-cell LiPo, LiIon, or LiFe receiver battery pack (6.6V to 7.4V nominal voltage). This eliminates the need for a regulator and lowers the chance for a power failure that can cause a catastrophic failure of your model. Also note that the HV servo specs are shown at the higher voltage (7.4V 2S LiPo) but will still operate on a standard 5-cell 6V NiCd, Ni MH battery with a reduction in performance of approximately 10% in speed and torque.

     

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  8. JR DS8711HV High Voltage Ultra Torque Servo
    $199.99
    JR DS8711HV High Voltage Ultra Torque Servo

    Discontinued: See Replacement JRPSNX8931

    DS8711HV High Voltage Ultra Torque Servo

    Key Features

    • Rugged new aluminum case
    • JR® SuperSteel™ gears for high precision, long wear
    • Exclusive motor designed for high voltage applications
    • Outstanding precision combined with outlandish performance

    Overview

    The 8711HV delivers unheard of power through a new SuperSteel gear train and does it all on a 2S LiPo battery pack—without a regulator!

    Add its rugged new aluminum case, high voltage motor, legendary JR quality, and true, zero-deadband precision—plus its blistering, 0.12 second speed—and the 8711HV represents a whole new level of big model servo performance.

    Specs

    • Size Category:Standard
    • Type:Digital
    • Application:Giant-Scale aircraft
    • Torque:480 oz/in (2S LiPo battery)
    • Speed:.12 sec/60° (2S LiPo battery)
    • Dimensions (WxLxH):.82 x 1.58 x 1.57 in
    • Weight:2.6 oz
    • Bushing Or Bearing:Bearing
    • Bearing:Dual
    • Motor Type:Coreless
    • Connector Type:JR
    • Gear Type:Metal
    • Gear Material:SuperSteel™
    • Voltage:7.4V (2S LiPo battery)
    • Deadband:Less than .001ms

     

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