Shanghai Hengxiang Optical Electronic Co., Ltd. 86-21-54613487
Solid Shaft 2.5mm OD 18mm Miniature Rotary Encoder

Solid Shaft 2.5mm OD 18mm Miniature Rotary Encoder

  • High Light

    OD 18mm Miniature Rotary Encoder


    Solid Shaft Miniature Rotary Encoder


    360 Resolution Miniature Rotary Encoder

  • Product Name
    Outer Diameter 18mm Solid Shaft 2.5mm Miniature Rotary Encoder ABZ Phase 360 Resolution
  • External dimensions
    Solid Shaft Diameter: ⌀2.5mm
  • Resolution 
  • Output phase
    Phase A,B,Z
  • Supply voltage
    DC5V ; DC8-30V
  • Outlet Type
    Cable Out From Back
  • Place of Origin
  • Brand Name
  • Certification
  • Model Number
    S18 incremental encoder
  • Minimum Order Quantity
    1pcs encoder to start order
  • Price
  • Packaging Details
    each 1 piece/ packed into single carton box
  • Delivery Time
    3-5 working days for sample order, 7-15 working days for mass order
  • Payment Terms
    D/A, D/P, T/T, Western Union, Credit Card, Master Card,Paypal, etc
  • Supply Ability
    100K pieces per year

Solid Shaft 2.5mm OD 18mm Miniature Rotary Encoder

Outer diameter 18mm solid shaft 2.5mm miniature rotary encoder ABZ phase 360 resolution


     Product Description


Our  Matters Needing Attention


 1. Must choose the power supply voltage: DC5V or DC8-30V

 2. Must choose leaf spring plate model number if you select hollow shaft encoder

 3. Please advise the motor speed (RPM) that you actually use

 4. If you have any other requirements, please provide detail parameters


Our Selling Points


 •  Quick response once received customer’s quotation query

 •  Professional engineer team, to solve your problems at any time

 •  Strictly inspection before shipment

 •  Various encoder models to be selected

 •  Short lead time

 •  High quality standard


S18 Incremental Encoder Parameter Table


Product Name Outer diameter 18mm solid shaft 2.5mm miniature rotary encoder ABZ phase 360 resolution
External Dimensions  External diameter: 18mm
 Thickness: 18mm
 Solid Shaft diameter: ⌀2.5mm
Resolution  36;50;60;100;200;250;256;360;400;500;512;720;800;1000;1024;1440;1600
Output Phase  Phase A,B,Z
Supply Voltage  DC5V ; DC8-30V
Outlet Type  Cable out from side
 Cable out from back
Output Mode  Collector open circuit output(NPN &PNP)
Environmental Temperature  Operating temperature: -20~+80° (Non cing)
 Storage temperature: -25~+85° (Non icing)
Environmental Humanity  Operating and storage: 35~85%RH (non-condensing)
Top Response Frequency  100kHz Max
Vibration(endure)  Amplitude 0.75mm,10-50Hz,1 hour for X/Y/Z direction individually
Shock(endure)  49/m/s2,three times for X,Y,Z direction individually
Shaft Material  304 stainless steel
Cable Length  150mm
Shell  aluminum Alloy
Package  Carton box
Net Weight  About 20g (with package)
Certification  CE


Solid Shaft 2.5mm OD 18mm Miniature Rotary Encoder 0

Encoder Catalogue


If you have already selected the encoder model you are going to order, please email us directly or contact online service right now to get the latest catalogue.

But if you are still have any doubts on choosing a right encoder model number, you are also free to contact us to get the related catalogue.


Encoder Operation Method


oday most incremental encoders have a Push-Pull (HTL) or RS422 (TTL) output driver, these have replaced most of the older output circuits like Open Collector NPN, Open Collector PNP, Voltage Output.

Push-Pull (HTL) circuits, also known as Totem Pole, provide a signal level which corresponds to the applied supply voltage. The supply voltage typically ranges from 8 to 30 VDC.

With proper connections you can use the Push Pull interface to replace true open collector circuits by using an external diode connected in a way to limit the direction of the current for RS422 (TTL) circuits provide a constant 5 V signal level that is not dependent on the supply voltage. Two supply voltage ranges can be selected: From 4.75 to 5.5 VDC (can be used to replace open collector output drivers) or from 8 to 30 VDC. Using differential signals the output fully complies to the RS422 standard.

The differential outputs have the highest frequency response capability and the best noise immunity. To ensure this the receiver should also be a differential.

Replacement of Older Output Drivers


Production Date


  3-5 working days for sample after full paid

  7-15 days for mass production after full paid