RLC2HD miniature rotary PCB level incremental magnetic encoder

RLC2HD miniature rotary PCB level incremental magnetic encoder

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RLC2HD is a PCB level incremental encoder sensor system consisting of a PCB sensor and magnetic scale or ring. It has been designed for embedded motion control applications as a position control loop feedback element in space constraint applications.

The information carrier is a periodically magnetised scale with a pole length of 2 mm. Radial or axial reading of the ring is possible.

State of the art position sensing assures highly repeatable position measurement under wide installation tolerances and temperature ranges.

The position information is output in incremental quadrature format with the option of a periodic reference mark (every pole).

The maximum traverse velocity depends on the chosen resolution and minimum edge separation time, to 7.5 m/s at 1 µm and to 75 m/s at approx. 10 μm.

The RLC2HD is a moisture sensitive device. It should be soldered immediately after the transportation packaging has been opened. If not, baking procedure should be performed.

Output type - HD - Incremental
Pole length 2 mm
Available resolutions and maximum speed
MR047B040B076B00 (radial ring, 76 poles)
MR061C051B090B00 (axial ring, 90 poles)
MR061C051B092B00 (axial ring, 92 poles)
Repeatability Better than unit of resolution for movement in the same direction
Hysteresis < 2 μm up to 0.2 mm ride height
Output type - HD - Incremental
Power supply 5 V ± 0.25 V
Power consumption (without load) < 20 mA
Output signals
Digital – TTL-level (A, B, Z)
   Saturation voltage hi (I = –4 mA) Vdd - 0.4 V
   Saturation voltage lo (I = 4 mA) 0.4 V
   Rise and fall time (cc = 50 pF) 60 ns
ESD susceptibility of all pins 2 kV (HBM 100 pF, discharge through 1.5 kΩ)
AWG for connection wires 21
Output type - HD - Incremental
Mass RLC: 1.25 g; MR050C: 8 g; MR047B: 9 g
Output type - HD - Incremental
Temperature Operating     -30 °C to +85 °C
Storage         -40 °C to +85 °C
Vibrations (55 Hz to 2000 Hz) 300 m/s2 (IEC 60068-2-6)
Shocks (11 ms) 300 m/s2 (IEC 60068-2-27)
Moisture level MSL6 (IPC/JEDEC-J-STD-020)
Baking procedure 48 h/125 °C or according to IPC/JEDEC-J_STD_033


  • Miniature design
  • Incremental quadrature TTL output signals A, B, Z
  • Periodic, bidirectional index impulse
  • Resolutions up to 622,592 cpr for rotary applications (76 pole ring)
  • High speed operation
  • RoHS compliant

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