Specification: Part Number 1037901 Moment of inertia of the rotor: 40 gcm² Operating torque: 0.6 Ncm (+20 °C) Start up torque: 0.8 Ncm (+20 °C) Working temperature range: -30 °C ... +100 °C Operating voltage range: 4.5 V ... 5.5 V Measuring step: 90 ° / electronically/number of lines Shaft diameter: 12 mm Max. angular acceleration: 500,000 rad/s² Maximum operating speed: 9,000 /min MTTFd: mean time to dangerous failure: 300 a (EN ISO 13849-1) Bearing lifetime: 3.6 x 10^10 revolutions Resistance to shocks: 60 g (according to EN 60068-2-27) Permissible relative humidity: 90 % (condensation of the optical scanning not permitted) Enclosure rating: IP 65 (according to IEC 60529), shaft side, IP 67 (according to IEC 60529), housing side Mass: 0.2 kg Reference signal, number: 1 Electrical interface: 4.5 V ... 5.5 V, TTL/RS422, Cable, 8-pin, universal, 5 m EMC: (according to EN 61000-6-2 and EN 61000-6-3) Error limits: ± 0.03 ° Connection type: Cable, 8-wire, universal, 5 m Reference signal, position: 90 °, electronically, gated with A and B Initialization time: 40 ms Storage temperature range: -40 °C ... +100 °C, without package Load current max.: 30 mA Maximum output frequency: 820 kHz Permissible movement radial static/dynamic: ± 0.3 mm, ± 0.05 mm Permissible movement axial static/dynamic: ± 0.5 mm, ± 0.01 mm Shaft material: Metal Mechanical interface: Through hollow shaft Resistance to vibration: 20 g, 10 Hz ... 2,000 Hz (according to EN 60068-2-6) Pulses per revolution: 65,536