The NEMICON OEW2‑01‑2MHC is a compact incremental rotary encoder from the OEW2 series, offering 100 pulses per revolution (PPR), AB quadrature output with 90° phase difference plus a zero signal, and a high‑voltage open‑collector output (HC type). It is designed for small shaft applications where reliable feedback and compact size are critical.
⚙️ Key Specifications
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Series / Model: OEW2‑01‑2MHC
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Encoder Type: Incremental rotary encoder (shaft type)
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Resolution: 100 pulses per revolution (01 = 100 PPR)
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Output Mode: AB quadrature signals (90° phase difference) + Zero signal (2M option)
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Output Circuit: HC = High‑voltage open collector output
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Supply Voltage: 5–12 V DC (depending on variant)
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Cable Length: Standard 2 m (custom lengths available)
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Mounting: Miniature shaft encoder, compact housing for tight spaces
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Operating Temperature: −10 °C to +60 °C (typical for OEW2 series)
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Applications: Counters, small motors, robotics, automation systems requiring compact feedback devices
📊 Product Highlights
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Compact design: OEW2 series is known for miniature encoders, ideal for space‑constrained installations.
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Quadrature + zero signal: Provides directional information and a reference pulse for precise positioning.
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Flexible outputs: Available in multiple output types (open collector, push‑pull, line driver, CMOS). The “HC” variant supports high‑voltage open collector.
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Resolution range: OEW2 family supports 20–3600 PPR, with the “01” variant specifically at 100 PPR.
🔍 Hidden Insights
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Model code breakdown:
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OEW2 = Encoder series
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01 = 100 PPR resolution
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2M = AB quadrature + zero signal output
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HC = High‑voltage open collector output
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Application fit: The 100 PPR resolution is relatively low, making it suitable for speed monitoring or coarse positioning rather than ultra‑precise control.
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Family scalability: If higher resolution is needed, other OEW2 variants (e.g., 1024 PPR, 2048 PPR, 3600 PPR) are available with the same mechanical footprint.