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What is A7D?

This electronic component, produced by the manufacturer "Omron Electronics", performs the same function as "Thumbwheel Switch".


A7D Datasheet PDF - Omron Electronics

Part Number A7D
Description Thumbwheel Switch
Manufacturers Omron Electronics 
Logo Omron Electronics Logo 


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Thumbwheel Switch
A7D/A7DP
Ultra-small, Low-cost, Push-operated
Switches
• All-in-one design means fewer parts are required. This product
delivers high reliability at a low cost.
• Uses long-lasting resin springs to achieve a long mechanical
durability expectancy of 30,000 operations.
• Models with stoppers for restricting the setting range are available.
• The series includes a complete range of pen-push models that
prevent accidental operation.
CSM_A7D_A7DP_DS_E_2_1
Ordering Information
Switches (Single Switch Units)
Model
A7D
Screw mounting (back mounting)
Snap-in (front mounting)
Classification
(See note 1.)
A7DP
Snap-in (front mounting)
Output code Terminals
number
Color
06 (binary coded decimal)
Light gray
A7D-106
Black
A7D-106-1
PCB terminals
Light gray
Black
A7D-206
A7D-206-1
Light gray
A7DP-206
Black
A7DP-206-1
Note: 1. The classification diagrams show 4 Switch Units combined with End Caps to create 4-digit displays.
2. The model numbers given above are for 1 Switch Unit.
3. Models with stoppers are also available. Add “-S@@” after the “106” or “206” in the model number and specify the display range in the @@. For example, to
specify the range 0 to 6, add “-S06” to the model number (e.g., A7D-106-S06-1).
4. Models with +, - displays are also available. Add “-PM” after the “106” or “206” in the model number (e.g., A7D-106-PM or A7D-106-PM-1).
Accessories (Order Separately)
Use accessories, such as End Caps and Spacers, with the Switch Units.
Classification
Accessory
Color
Screw mounting (back mounting)
Light gray
Black
Snap-in (front mounting)
Light gray
Black
End Caps (1 pair)
Spacer
A7D-1M *
A7D-1P@
(See note.)
A7D-1M-1 *
A7D-1P@-1
(See note.)
A7D-2M *
A7D-2P@
(See note.)
A7D-2M-1 *
A7D-2P@-1
(See note.)
Note: The @ in the Spacer model number stands for a letter in the range A to U. (Refer to the table in the following explanation about Spacers.)
* The minimum order is for 10 End Caps.
End Caps
End Caps are used on the Switch Units at each end and allow all the Switch Units to be securely mounted to a panel. They come in pairs, one for
the left and one for the right.
Spacers
Spacers are used for creating extra space or gaps between the Switch Units and have the same dimensions as the Switch Units themselves.
There are alsoSpacers with engraved characters or symbols thatcan be used for indicating units, such as time andlength. (Refer to the following
table.) Consult your OMRON representative for details.
Symbol A B C D E F G
Stamp
No desig-
nation
SEC
MIN
H
g
kg mm
Symbol H J K L Q T
Stamp cm
m
°C
PCS
x 10
SEC
0
U
http://www.Datasheet4U.com
1

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A7D equivalent
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or
comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS
OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT
SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the
result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
2008.12
In the interest of product improvement, specifications are subject to change without notice.
(c)Copyright OMRON Corporation 2008 All Right Reserved.


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