Miniature Rotary Torque Transducer | YDSA

Small and Accurate, with a High RPM Capability

  • Lead Time: 4 - 6 weeks
  • Buy online:
YDSA Miniature Rotary Torque Transducer

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. They utilise a slip ring for excitation and signal transmission and offer low capacity torque measurement, high accuracy and high RPM capability.

Typical applications include the monitoring of high speed, low torque electrical motors and pumps.

For easy installation the YDSA 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