®
Electrocomponents
Precision
Miniature 9mm Size
Rotary Encoder
Features
• Miniature Size
• High Resolution (20 pulses)
• Optional Momentary Switch
• Continuous Rotation
• Durable Metal Shaft & Bushing
• Long Rotational Life (50K, 100K)
• Available with 20 Detents
• RoHS Compliant
Series 290
Data Sheet
Rotary Encoder
Electrical and Mechanical Specifications
Encoder:
Contact Resistance
1Ω maximum
Voltage Rating (each channel)
12 VDC @ 10mA maximum
Phase Difference (FIG. 1)
T1, T2, T3, T4 - 4.0 milliseconds
minimum @ 60 rpm
Chatter (FIG. 3)
t1, t3 – 3.0 milliseconds maximum
@ 60rpm
Bounce (FIG. 3)
t2 – 3.0 milliseconds maximum
@ 60rpm
Detent Points
20 detents available
Rotational Life
Standard: 50,000 cycles
Available: 100,000 cycles
Resolution
20 pulses in 360°
Insulation Resistance
100MΩ minimum at 250 VDC
Temperature Range
Operating: -30°C - +70°C
Storage: -40°C - +85°C
Rotational Torque
10 - 120 gf.cm
Solder Heat Resistance
260°C for 5 seconds
Push-Pull Strength of Shaft
10 kg minimum for 10 seconds
Special
Consult CTS for customized or not listed
features including other detent points,
resolution, torque and mounting style.
1-3
CTS Electrocomponents
© 2010 CTS Corporation. All rights reserved. Information subject to change.
03/23/10
www.ctscorp.com
Electrical and Mechanical Specifications
(continued)
Optional Momentary Switch:
Switch Contact Resistance
Initial: 100mΩ maximum
After Life Cycles: 200mΩ maximum
Switch Rating
16 VDC @ 0.5A maximum
Switch Bounce
5 milliseconds maximum
Switch Operating Force
600 ± 300 g (21 ± 11 oz.)
Switch Life
100,000 operations
Switch Travel
0.5mm (.020”)
TYPE MC-290V
Typical 2-Bit Encoder With Momentary Switch, Shaft Perpendicular to PC Board
5.5
.216
6.3
.248
7.0
.276
7.5
.295
+0.1
Ø1.0 -0.0
(5)
+.004
.039 -.000
B
A
+.004
.071 -.000
+0.1
1.8 -0.0
S2
CENT.
5.00
.197
B
11.4
.449
9.8
.386
.197
11.10
5.0
.437
S2
S1
S1
A
10.6
.417
SWITCH
STROKE
+0.4
0.5 -0.3
+.016
.020 -.012
+0.1
2.6 -0.0
+.004
.102 -.000
φ6.00
.236
MOUNTING HOLE DETAIL VIEWED
FROM MOUNTING SIDE
+0.5
"L"± -.020
"M"
"LB"
6.2
.244
MOUNTING SURFACE
3.5
.138
3.5
.138
2.5 ±0.1
.098±.004
7.0
.276
7.5
.295
10.1
.398
11.4
.449
0.8 ±0.1 (5)
.031 ±.004
CENT.
5.00
.197
C
C
DIMENSION:
mm
inch
OUTPUT SIGNAL
(FIG.1)
CW
OFF
SINGNAL A
ON
OFF
SINGNAL B
ON
T1 T2 T3 T4
TYPICAL CIRCUIT
(FIG.2)
OFF
5V
5KΩ
TERMINAL A
5KΩ
TERMINAL B
BOUNCE / CHATTER
(FIG.3)
3.5V
1.5V
ENCODER
PHASE DIFFERENCE
TERMINAL C
ON
t2
t1
t3
2-3
CTS Electrocomponents
© 2010 CTS Corporation. All rights reserved. Information subject to change.
03/23/10
www.ctscorp.com
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