288

Series 288 Encoder ® 16 mm Rotary Encoders Features • Low cost, robust design • Miniature 16mm style • Bushing mounted • PC terminals, with shaft aprallel or perpendicular to PC board • 2 bit, 4 bit Gray and 4 bit Hexidecimal codes available • 16 detents available • Optional momentary switch • RoHS compliant Electrical and Mechanical Specifications Voltage Rating 5VDC @ 0.5milliamp Current Rating 5mA max. Temperature Rating Operation: -25°C to +100°C Contact Resistance 500 ohms static closed circuit maximum Contact CTS for special requirements Detent Points 16 detents avaialable Resolution Switch Rating 4,6,8,10 or 12 pulses in 360° on 2 bits Total Rotational Angle 360° Rotational Torque 36~216 gfcm (0.5~3 in-oz) Contact CTS for special requirements Rotational Life 50,000 cycles min. Switch Life 15,000 operations for 0.5mm(.020") travel Switch Contact Resistance 100 milliohms maximum initial 200 milliohms maximum after life Switch Operation Force 350 ±150 gf (12.3 oz ±5.3 oz) Switch Bounce 5 milliseconds max. Switch Travel Length 0.5mm (.020”) Pull and Thrust on Shaft Withstand a pushing force and pulling force of 8 kg static load applied to axial direction for 10 ±1 second without physical damage or electrical degradation 1-4 CTS Electronic Components © 2006 CTS Corporation. All rights reserved. Information subject to change. www.ctscorp.com 10/05/06 4 BIT GRAY CODE POS. DENOTES CONTACT CLOSURE TO COMMON A B E F 4 BIT HEXIDECIMAL POS. NO. DENOTES CONTACT CLOSURE TO COMMON A B E F TRUTH TABLE 2 BIT BINARY DENOTES B CONTACT CLOSURE TO A COMMON NO. 0 0 1 0 1 2 1 1 3 1 0 4 0 0 5 0 1 6 1 1 7 1 0 8 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 1 1 0 POS. NO. 9 10 11 12 13 14 15 16 46 47 48 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 00 10 11 01 01 11 11 01 01 11 10 00 00 10 10 00 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 X288 Typical 2-bit Encoder parallel to P.C. Board MTG. SURFACE 10.2±0.4 .402±.016 18.0 .709 "L"± 0.8 .031 "A"±.016 0.4 MAX. 8.5 .335 10.00±0.05 .394±.002 5.00±0.05 .197±.002 MTG. SURFACE 7.9±0.13 .311±.005 MAX. 11.20 .441 6.83±0.05 .269±.002 12.50 .492 3/8-32UNEF-2A B C A Ø1.40 (3) .055 A C 16.4 .646 B DIMENSION : mm INCH X2-288 Typical 4-bit Encoder parallel to P.C. Board MTG. SURFACE MAX. 3/8-32UNEF-2A 8.5 .335 7.9±0.13 .311±.005 11.2 .441 MTG. SURFACE 3.68±0.05 .145±.002 18.0 .709 MAX. A 12.5 .492 Ø1.40 (6)HL'S. .055 E C D B F 8.10±0.05 .319±.002 B F C 16.4 .646 D A E 0.4 "A"± .016 15.1±0.4 .594±.016 0.4 "A"± .016 5.00±0.05 .197±.002 10.00±0.05 .394±.002 DIMENSION : mm INCH 2-4 CTS Electronic Components © 2006 CTS Corporation. All rights reserved. Information subject to change. 10/05/06 www.ctscorp.com T288 Typical 2-bit Encoder With Solder Lug Terminals MTG. SURFACE 10.2±0.4 .402±.016 "L"±0.8 ±.031 "A"±0.4 ±.016 MAX. 18.0 .709 MAX. 8.5 .335 11.2 .441 10.9 .429 A 2.18X1.52 HL'S(3) .086X.060 C 16.4 .646 B 2.92±0.08 .115±.003 mm INCH 7.9±0.13 .311±.005 3/8-32UNEF-2A DIMENSION : V288 Typical 2-bit Perpendicular to P.C. Board MTG. SURFACE 10.2±0.4 .402±.016 3/8-32UNEF-2A 18.0 .709 MAX. 8.5 .335 5.00±0.05 .197±.002 10.00±0.08 .394±.003 CENTER LINE OF ENCODER Ø1.40(3) HL'S .055 A C B 7.9±0.13 .311±.005 MAX. 0.4 "A"± .016 6.4 .252 0.8 "L"± .031 12.5 .492 A C 16.4 .646 B 12.70 .500 DIMENSION : mm INCH MC-V288 Typical 2-bit Encoder With Momentary Switch Perpendicular to P.C. Board MTG. SURFACE 12.26 .483 10.76 .424 "L"± 3/8-32UNEF-2A 0.8 .031 7.9±0.13 .311±.005 MAX. 18.0 .709 Ø1.70 (2) .067 B 12.5 .492 2.5±0.13(2) .098±.005 7.0±0.13 .276±.005 S1 S2 C 8.5 MAX. .335 (2) HL'S Ø1.40 (3) HL'S .055 5.00±0.13 (2) .197±.005 4.87 .192 "A"± 0.4 .016 A 0.5 TRAVEL .020 (REFERENCE) C 16.4 .646 B A 13.30±0.13 .524±.005 DIMENSION : mm INCH MC-X288 Typical 2-bit Encoder With Momentary Switch Parallel to P.C. Board 12.26 .483 10.76 .424 MTG. SURFACE 3/8-32 UNEF-2A 8.5 MAX. .335 18.0 .709 MAX. 10.00±0.08 .394±.003 5.00±0.05 .197±.002 7.9±0.13 .311±.005 6.83±0.13 .269±.005 B C A MTG. SURFACE 12.5 .492 Ø1.40 (5)HL'S. 0.5 TRAVEL .020 (REFERENCE) 0.4 "A"± .016 "L"± 0.8 .031 A 4.0 .157 16.4 .646 1.00±0.13(5) 0.39±.005 C B 3.07±0.13 .121±.005 2.5±0.05 .098±.002 PANEL PIERCING S2 S1 2.5±0.05 .098±.002 DIMENSION : mm INCH 3-4 CTS Electronic Components © 2006 CTS Corporation. All rights reserved. Information subject to change. 10/05/06 www.ctscorp.com Ordering Information 288 TERMINAL STYLE * T – SOLDER LUG X – PC V – PC FORMED TO REAR * Not available in switch construction. T B 24 F 40 2 A SWITCH CODE A – NONE * B – MOMENTARY SWITCH * 2 BIT MODELS ONLY 1 DETENT SHAFT TRIM "A" BUSHING LENGTH mm A=5.0mm B=6.35mm C=7.0mm D=9.53mm ALL M8X.75P 1 – NONE * 2 – 16 DETENTS ENCODER CODE 1 – 2 BIT BINARY * 2 – 4 BIT GRAY * 3 – 4 BIT HEXIDECIMAL * 16-16 COM (4 PULSES) ONLY * 16-16 COM (4 PULSES) ONLY inch 2=.250" 3=.375" 8=1.000" ALL 3/8-32 UNEF-2A R – ROUND F – F x 4.5mm (For metric size) .375 x .156" (For inch size) K – 18 TEETH (For metric size) 24 TEETH (For inch size) S – SD SLOT COMBINATION 16-16 COM (4 PULSES) 24-24 COM (6 PULSES) 32-32 COM (8 PULSES) 40-40 COM (10 PULSES) 48-48 COM (12 PULSES) "L" SHAFT LENGTH mm A0=10mm A5=15mm B0=20mm B5=25mm C0=30mm C5=35mm ALL 6.0mm Dia. inch 20=.625" 24=.750" 28=.875" 32=1.000" ALL .250" Dia. METRIC BUSHING EQUIPPED WITH METRIC SHAFT. 4-4 CTS Electronic Components © 2006 CTS Corporation. All rights reserved. Information subject to change. 10/05/06 www.ctscorp.com