For more information, please visit the product page. rev. DESCRIPTION: rotary encoder PART NUMBER: EC252AB ELECTRICAL SPECIFICATIONS output waveform output signals current consumption output voltage Square wave A, B phase 20 mA max. Vcc ~ 0.5 V min. 0.7 V max. -0.1 mA max. 3.3 V dc ± 5% 50 100 Hz “H” “L” output current supply voltage output resolution (ppr) frequency response MECHANICAL SPECIFICATIONS max shaft load, radial: axial: starting torque rotational angle maximum speed rotational life weight 1 kgf 1 kgf 0.4 ±0.2 N·cm max. (41 ±20 gf·cm max.) 360° continuous 120 RPM 1,000,000 cycles 20 g ENVIRONMENTAL SPECIFICATIONS operating temp storage temp humidity vibration shock 0° to +60° C -20° to +80° C 85% RH, no condensation 10 ~ 55 Hz. 1.5 mm, 2 hours 50 G, 6 ms, 3 axes, 3 reps ORDERING INSTRUCTIONS EC252X050X Detent: A = Without detent B = With detent Termination options: A = Solder holes B = Connector C = Cable D = PC board mount 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 page 1 of 2 date 08/2008 For more information, please visit the product page. rev. page 2 of 2 date 08/2008 DESCRIPTION: rotary encoder PART NUMBER: EC252AB OUTPUT CIRCUIT OUTPUT WAVEFORM (Clockwise rotation viewed from front) EXTERNAL CIRCUIT INTERNAL CIRCUIT Detent Position 1 +3.3V EC251X R1 A R2 +3.3V R3 PI1 2 Ch B PI2 3 Ch A 1 74HC14 2 Output B 74HC14 3 B 4 GND 4 5 NC R2, R3: 100 k Ω 6 NC MECHANICAL DRAWING EC252X050A 25 3.5 12.5 M9 P=0.75 17 +0 8 -+00.1 Ø6 - 0.1 2 Ø3 14.5 16 10 4 C 6-ø1 2 10 8 20 Pin #1 8.2 13 Mounting Hole Dimensions PCB Footprint 2-Ø2.2 10 14.5 8.1 23.1 2 6-Ø1 ø9.2 EC252X050B EC252X050C EC252X050D AWG28 UL1007 JST: B6B-PH-K-S 0.5 4.5 JST: 6P-SAN 6 1.8 150 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 3.5 Output A