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E4T Miniature Optical Kit Encoder

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Overview

  • E4T Optical Kit Encoder
  • Push-on hub - spring loaded collet design
  • Minimum shaft length of .275"
  • Fits shaft diameters of .079" to .250"
  • 100 to 500 cycles per revolution (CPR)
  • 400 to 2,000 pulses per revolution (PPR)
  • Single +5V supply

The E4T miniature transmissive optical encoder is designed to provide digital quadrature encoder feedback for high volume, limited space applications. The E4T is designed to be a drop in replacement for the E4P...

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Product Specifications

ParameterValueUnits
Operating Temperature -20 to 100 C
Electrostatic Discharge, IEC 61000-4-2
Single-ended (-S version)
Differential (-D version) 

± 12
± 7

kV
Shock, 6 millisecond, half-sine 75 G
Vibration (20Hz to 2kHz, sinusoidal) 20 G

 

ParameterValueUnits
Max. Shaft Axial Play ± .010 in.
Max. Shaft Runout (TIR) .002 in.
Max. Acceleration 250,000 rad/sec²

Maximum RPM (1)
e.x. CPR = 300, max. rpm = 20000
e.x. CPR = 200, max. rpm = 30000

minimum value of
(6000000/CPR)
and (60000)
RPM
Max. Codewheel Moment of Inertia 5.1 x 10^-7 oz-in-s²
Mounting Screw Size
Default (D-option base)
Metric (M-option base)

#3-48 x 3/16"
M2.5, length 4mm
 
Screw Bolt Circle Diameter .586 ±.005 in.
Minimum Shaft Length (2) .275 in.
Maximum Shaft Length (2) .395 (D option) /
no limit (H option) 
in.
Mounting Screw Torque 2-3 in-lbs
Technical Bulletin TB1001 - Shaft and Bore Tolerances Download

(1) 60000 RPM is the maximum rpm due to mechanical considerations. The maximum RPM due to the module's 100kHz maximum output frequency is (6000000/CPR).

(2) Including axial play.

 

SpecificationsMin.Typ.Max.UnitsNotes
Supply Voltage 4.5 5.0 5.5 V  
Supply Current   25 30 mA no load
Low-level Output     0.4 V IOL = 8 mA
  0.035   V no load
High-level Output 2.4     V IOH = -8 mA
  4.0   V no load
Output Rise Time   100   ns no load
Output Fall Time   50   ns no load
SpecificationsMin.Typ.Max.UnitsNotes
Supply Voltage 4.5 5.0 5.5 V  
Supply Current   27 32 mA no load
Single-Ended Output Voltage High 4.75 5.0   V Min. @ 25mA load, Typ. @ no load
Single-Ended Output Voltage Low   0.25 0.60 V Typ. @ no load, Max. @ 4.5mA load
Differential Output Voltage 3.0 3.8   V RL = 100 ohm
Differential Output Rise/Fall Time     20 ns

e_series_output_0.gif  

ParameterMin.Typ.Max.Units
Symmetry, S 105 180 255 electrical degrees
Quadrature Delay, Q 30 90 150 electrical degrees

(1) A leads B for clockwise shaft rotation, B leads A for counter clockwise shaft rotation viewed from the cover side of the encoder.

(2) Typical values represent the encoder performance at typical mounting alignment, whereas the maximum values represent the encoder performance across the range of recommended mounting tolerance.

4-pin Single-ended (1)6-pin Differential (2)
PinDescriptionPinDescription
1 +5VDC power 1 Ground
2 A channel 2 A channel
3 Ground 3 A- channel
4 B channel 4 +5VDC power
    5 B channel
    6 B- channel

(1) 4-pin single-ended mating connector is CON-MIC4
(2) 6-pin differential mating connector is CON-MIC6

H-option (Hole In Cover)

The H-option adds a 0.295" diameter hole in the cover for the shaft to pass through.

M-option (Metric Mounting Screws)

Provides alternate metric M2.5, length 4mm screws. When M-option is NOT specified the default is #3-48 x 3/16" screws.

1. Centering Tool*

Part #: MCTOOL - (Shaft Diameter)
Description: This reusable tool is used to accurately center the E4T base on the shaft.

2. Spacer Tool*

Part #: SPACER-E4T
Description: This reusable tool is used to properly space the codewheel from the encoder.

 

*Both the MCTOOL and SPACER-E4T tools are included with all packaging options.

TitleDateDescriptionDownload
E4T, S4T and E8T Laser Markings - PCN 6227 8/8/2017 This notification is to inform our customers of a change to product markings for the E4T, E8T, and S4T series of encoders. The new marking will be utilized across all three product lines. We are making this change to improve readability for our customers and to provide consistency across the product lines.
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Product Description

Restriction of Hazardous Substances

The E4T miniature transmissive optical encoder is designed to provide digital quadrature encoder feedback for high volume, limited space applications. The E4T is designed to be a drop in replacement for the E4P that offers higher maximum speed and increased output drive. The E4T utilizes an innovative, push-on encoder disk which accepts shaft diameters of 2.0mm to .250".  

The E4T miniature encoder base provides mounting holes for two #3-48, length 3/16" or two M2.5, length 4mm screws on a .586" bolt circle. The encoder cover is easily snapped onto the base and is marked with the connector pin-out.      

The E4T series encoder is connected using a 4-conductor, high retention, polarized, 1.25mm pitch connector. Mating cables and connectors (see the Cables / Connectors web page) are not included, and are available separately.    

Related

Cable/connector assembly not included and must be ordered separately.

Related Products & Accessories

Product Configuration

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1. CPR
2. Bore
3. Output


4. Cover


5. Base


6. Packaging




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Quantity Unit Price
1 $24.81
5 $22.07
10 $21.20
50 $20.56
Over 50 Call for Quote
Quantity
Unit Price

$24.81

Subtotal

$24.81


For purchasing or volume discounts, please use the above part number and contact us at:

sales@usdigital.com or

800.736.0194 (Toll Free)
360.260.2468 (Local)