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    Miniature Rotary Torque Transducer | YDSA

    Accurate yet Small Torque Sensor with a High RPM Capability
    YDSA Miniature Rotary Torque Transducer
    Lead Time
    4 - 6 weeks
    Prices From
    (excl. VAT)
    Accelerated delivery available
    Quantity, OEM & educational discounts

    At a Glance

    • Capacities: 0-0.2Nm to 0-50Nm
    • 1.3mV/V Output
    • Very Compact Size
    • Non-Linearity: <±0.2%/Rated Capacity
    • Max Speed: 8000rpm
    • Ultra Compact for Mounting in Tight Spaces
    • Ideal for Electrical Motors, Pumps and Gearboxes
    • Integrated Mounting Pedestal and a Detachable Cable Assembly
    • Slip Ring Based Design


    The YDSA series of miniature rotary torque transducers have a shaft-to-shaft configuration and offer a very small size for mounting in compact spaces. These small torque sensors utilise a slip ring for excitation and signal transmission and offer low-capacity torque measurement, high accuracy and high RPM capability.

    Thanks to the small torque sensors’ compact size, ideal applications include the monitoring of high-speed, low-torque electrical motors and pumps.

    For easy installation, the YDSA miniature rotary torque sensor features an integrated mounting pedestal and a detachable cable assembly.

    Want an analogue output with a rotary torque sensor? Try our DRBK low cost rotary torque sensor with internal signal amplifier offering high 1kHz frequency response.

    Need a static miniature torque sensor? Try our YDNS miniature static reaction torque sensor ideal for electrical motors, pumps and gearboxes.

    Technical Specifications

    Rated Capacity (RC)Nm0.2, 0.5, 1, 2, 3, 5, 10, 30, 50
    Rated Output (FSO)mV/V1.3 nominal
    Zero Balance/Offset±%/Rated Output<1 typical
    Output Symmetry (cw vs ccw)±%/Rated Output<0.5
    Non-Linearity±%/Full Scale Output0.2
    Hysteresis%/Full Scale Output0.2
    Repeatability±%/Full Scale Output0.1
    Temperature Effect on Zero±%/Full Scale Output/ ˚C<0.005
    Temperature Effect on Output±/Applied Torque/ ˚C<0.009
    Bridge ResistanceOhms350 nominal
    Insulation ResistanceMegaohms @ 500Vdc300
    Excitation VoltageVolts AC or DC10 recommended (2-15 acceptable)
    Operating Temperature Range˚C-20 to +70
    Compensated Temperature Range˚C-10 to +60
    Storage Temperature Range°C-20 to +70
    Safe Overload% of Rated Capacity150
    Ultimate Overload% of Rated Capacity300
    IP Rating (Environmental Protection)IP50
    Fatigue Rating108 cycles typical
    Cable Length (as standard)3 metres
    Cable TypeØ4mm, 4-core screened
    Frequency Responsems<10 typical
    Resolution1 part in 50,000 (with appropriate instrumentation)

    Product Dimensions

    YDSA Miniature Rotary Torque Transducer Outline Drawing
    0-0.2, 0-0.5, 0-1, 0-284521660812134.032425.559708000
    0-3, 0-5885616601212134.032425.559708000
    0-10, 0-309058167218125x540.532466.572868000
    Capacity (Nm) ABCØDØEFG
    0-0.2, 0-0.5, 0-1, 0-2845216608121
    0-3, 0-58856166012121
    0-10, 0-309058167218125x5
    Capacity (Nm) MNOØPQRRPM
    0-0.2, 0-0.5, 0-1, 0-234.032425.559708000
    0-3, 0-534.032425.559708000
    0-10, 0-3040.532466.572868000

    All dimensions are in mm.

    Wiring Details

    Red+ve excitation (Pin A)
    White-ve excitation (Pin C)
    Black+ve signal (Pin D)
    Green-ve signal (Pin B)
    ScreenTo ground - not connected to transducer body (Pin E)

    Ordering Codes & Options

    Core ProductCapacity (inc Engineering Units)Cable Length (m)Specials CodeResult

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