S16 Micro Rotary Shaft Encoder

S16 Webproduct 01 Product Photo

S16 Features

  • Small size — 16 mm OD (0.63 in.)
  • 10 Resolutions from 250 to 4,096 CPR (1,000 to 16,384 PPR)
  • 3 Shaft sizes: 1/8 in., 6 mm, 1/4 in.
  • Three shaft torque options
  • A/B quadrature output with index
  • High retention connection cable (sold separately)

See more info below

Configure the S16

US Digital S16 Micro Rotary Encoder Description

Restriction of Hazardous Substances

The S16 miniature optical rotary encoder converts shaft position or speed into a quadrature output signal with index. This optical shaft encoder delivers resolutions up to 16,384 PPR in a housing measuring about 16 mm (5/8 in.) in diameter. It is available in 3 shaft sizes: 1/8 in., 6 mm, 1/4 in.

US Digital offers three different shaft torque options to suit a range of applications:

  • Default (-D): sleeve bushing with higher damping for human interface applications.

  • Ball bearing (-B): miniature precision ball bearings suitable for high-speed applications.

  • Light static drag (-N): sleeve bushing with lower damping for low-speed applications.

This S16 miniature encoder is designed for use with a polarized high retention connector. After you make your selections in the Product Configurator, compatible cables will be displayed below and must be ordered separately.

Product Specifications

ENVIRONMENTAL

PARAMETER VALUE UNITS
Operating Temperature -40 to 100 C
Electrostatic Discharge, IEC 61000-4-2 ±12 kV
Vibration (10Hz to 2kHz, sinusoidal) 20 G
Shock (6 milliseconds, half-sine) 75 G

MECHANICAL

SPECIFICATION SLEEVE BUSHING BALL BEARING
Max. Acceleration 10000 rad/sec² 250000 rad/sec²
Max. Shaft Speed (1)
(mechanical)		 100 RPM 15000 RPM
Max. Shaft Torque 0.5 in-oz (D-option)
0.3 in-oz (N-option)		 0.05 in-oz (B-option)
Max. Shaft Loading 2 lbs. dynamic
20 lbs. static		 1 lb.
Bearing Life > 1000000 revolutions L10 = (22/Fr)³ *
Where L10 = bearing life in millions of revs, and
Fr = radial shaft loading in pounds
Weight 0.48 oz. 0.43 oz.
Max. Shaft Runout 0.0015 in. T.I.R. 0.0015 in. T.I.R.
Max. Panel Nut Tightening Torque 20 in-lbs 20 in-lbs
Technical Bulletin TB1001 - Shaft and Bore Tolerances Download

* Only valid with negligible axial shaft loading.

(1) The maximum speed due to electrical considerations is dependent on the CPR. See the E16 product page.

ELECTRICAL

PARAMETER MIN. TYP. MAX. UNITS NOTES
Supply Voltage 4.5 5.0 5.5 V  
Supply Current   18 26 mA no load
Low-level Output  
0.1		 0.4 V
V		 IOL= 4 mA, Vcc = 5V
no load
High-level Output 4.7
4.9		   V
V		 IOH= 4 mA, Vcc = 5V
no load
Output Rise Time   80 135 ns no load
Output Fall Time   80 135 ns no load
Maximum Output Frequency
250/256 CPR
500/512 CPR
1,000/1,024 CPR
2,000/2,048 CPR
4,000/4,096 CPR
0.2
0.4
0.8
1.6
1.85		    
MHz
MHz
MHz
MHz
MHz		  

PHASE RELATIONSHIP

  • Specifications apply over the entire operating temperature range.
  • Values are for the worst error over full rotation.
  • Refer to the timing diagram below.
PARAMETER SYMBOL MIN. TYP. MAX. UNITS
Symmetry X, Y 150 180 210 °e
Quadrature Z 60 90 120 °e
Index Pulse Width Po 60 90 120 °e
Ch. I Rise After Ch. B or Ch. A Fall t1   10   ns
Ch. I Fall After Ch. B or Ch. A Rise t2   10   ns

TIMING DIAGRAM

S16 Timing Diagram

B leads A for clockwise shaft rotation, and A leads B for counterclockwise rotation viewed from the shaft side of the encoder.

PIN-OUT

PIN DESCRIPTION
1 Ground
2 Index
3 A channel
4 +5VDC power
5 B channel

Additional Information

Product Notes

  • Cables and connectors are not included and must be ordered separately.
  • For ordering information please configure the product and you'll see the Compatible Cables / Connectors section above.
  • US Digital® warrants its products against defects in materials and workmanship for two years. See complete warranty for details.

Related

3D Model Downloads

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    Datasheet

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