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Help Topics

How to Checkout

Step 1: Create Your Cart

  • Once you've completed shopping by adding all part numbers and quantities to your shopping cart, click the "Checkout" button.
  • Note: Error messages are displayed in red within the cart. Only parts without errors will be processed through checkout.

Step 2: Log In (Optional)

  • Returning customers with a "My Mouser" account should log in.
  • First time customers, or those who do not wish to create an account, can use the "Checkout Without Log In" option.

Step 3: Addresses

  • Enter, review or edit your Billing and Shipping addresses.
  • Click "Continue Checkout".

Step 4: Shipping Options

  • If your order contains backordered parts, you will be asked to select your backorder shipping preference. You can choose to hold shipment until all items are in stock, or ship in stock items now and the balance when they arrive.
  • Select a shipping method for your order. If you have any items that will not ship immediately, you will also have the option to select a shipping method for your pending items.
  • If you would like a customer service representative to review your order, enter any special shipping instructions. Please note that reviewing your order is a manual process and will delay its processing.
  • Click "Continue Checkout".

Step 5: Payment Options

  • Select your payment method.
  • You may enter a Purchase Order Number, but it is not required. This number is strictly used for your internal reference.
  • Click "Continue Checkout".

Step 6: Review and Submit

  • Review your order information
  • Set applicable Sales Tax, VAT or IVA preferences.
  • Click the "Submit Order" button.

Sharing Your Shopping Cart

In the Shopping Cart click on the link to "Share this Cart with a Colleague". Then follow the instructions on-screen. An e-mail will be sent to your colleague so that they can access a copy of your shopping cart and place the order for you. They will be able to access the shopping cart by clicking on a link in the e-mail that is sent to them or they can enter the access ID number on our Project and Cart Sharing page.

Saving Multiple Shopping Carts

In the Shopping Cart click on the link to "Save this Cart". Then follow the instructions listed. You can save as many shopping carts as you like and order them multiple times. You can view your saved carts by retaining the Access ID number and entering that on our Project and Cart Sharing page, or use the URL that is e-mailed to you. You can also view your saved carts in Order History.

"My Mouser" Account

While not required to order online, there are many advantages to having a My Mouser account, such as::

  • Store your personal information, eliminating the need to retype it each time you make a purchase
  • Modify your billing, shipping or e-mail address and change your password
  • Store as many shipping addresses as you need when ordering online
  • Use the BOM Tool to import a spreadsheet and save it as a project
  • Use the Project Manager tool to create, save, share and manage multiple design projects
  • View your Order History
  • Track shipments
  • View the status of any pending shipments
  • Print out invoice copies
  • Obtain account statements
  • Easily reorder products you have ordered in the past

All of these features will enhance your experience on Mouser.com. Sign up for free by clicking here.

Creating a "My Mouser" Account

Complete a My Mouser account registration form. All fields marked with a red asterisk must be filled in to process your registration.

Then click the "Create Account" button to complete the registration process. You will receive a message advising that your registration was successful. If any required fields were not completed, a message will display advising which fields need to be completed to process your registration.

Be sure to save your user name and password for future reference. You will receive an e-mail confirming your account, however it will not include your password for security purposes. If you ever forget your password or user name, you can request it by clicking on the "Request your User Name and Password" link on the My Mouser log in page.

Updating Account Information

Log in to your My Mouser account.

On the "My Account Summary" page, use the links on the left to update your personal information. The following options are available:

  • Edit Contact Information
  • Add or Edit Billing Address
  • Add or Edit Shipping Address
  • Change User Name
  • Change Password
  • Add or Edit Tax/VAT information

BOM Import Tool

Use the BOM Import Tool to upload materials/parts lists to Mouser, and receive current pricing, availability and other product details in a customizable, ready-to-purchase format.

To get started, log into your My Mouser account and click on any "BOM Import Tool" links. From there, follow the instructions on each step of the import wizard to complete the import process. When complete, use the provided tools to view, buy and export your BOM.

For additional information, please visit the BOM Import Tool Help Center.

EZ Buy Tool

If you know the exact part numbers you want to order, you can save time by adding them to your shopping cart all at once.

  • Under the "Services & Tools" item in the top navigation menu, choose "EZ Buy Tool".
  • If you need to order more than 5 part numbers, use the "Add lines to form" field in the top left. EZ Buy can support up a maximum of 99 lines.
  • Enter the Mouser or manufacturer part numbers, your internal part numbers (optional), and the quantities to order.
  • When you are ready to order, send the items to your cart by simply clicking on the "Add to My Order" button.
  • If you are logged in to your "My Mouser" account, you can also use this form to add multiple Mouser Part numbers into a new or existing project or saved cart.

Online Catalog

Our entire catalog can be accessed online in a variety of formats. The online catalog is fully integrated into our website and provides: current product availability and pricing information, as well as the ability to add products directly to your cart.

For a digital version of our print catalog that you can save to your local computer, we offer our full catalog in a downloadable PDF format. To use the PDF catalog, you will need Adobe Acrobat Reader.

Navigate through our PDF catalog using the bookmarks in the left-hand window, or flip through the catalog pages using the Back and Next buttons at the top and bottom of every page. You can also browse the PDF catalog by selecting a product category, supplier name or page number in the bookmark window.

In all versions of our digital catalogs, clicking on a blue part number will allow you to view the product details, inventory status or add it to your order on our website. Products not appearing with a blue part number can be displayed and ordered by either typing or copying and pasting the number into the search box located on any page of our website.

Product Comparison Tool

From any Mouser.com search results screen, you may select up to 20 products to compare at a time. Conducting a product comparison will display the product information and specifications of the selected products in a side-by-side format, making it easy to identify similarities and differences between products.

You can compare products by selecting the corresponding check box for an item on the search results screen. When all desired products have been selected, click the "Compare Selected" button. It may take several moments to display the requested data for the selected parts.

On the Product Compare screen you can easily remove, add to cart, or add to project one or more compared parts by selecting the desired part(s) and clicking on the appropriate button at the top or bottom of the page. You may also return to the previous page by clicking the "Return to Search Results" button.

Quote Request

To request a quote for a single item, use the 'Get Quote' links on product detail pages or you may use our Quote Request form. For multi-line quotes, use our Quote Request form and simply click the 'Add Line' button to add all desired parts, quantities, and target dates.

Once on the request form, complete all required fields so we can generate the most accurate quote possible. A quote request can contain up to 99 part numbers. You may also edit the quantity and target date information for any item on your quote, as necessary. Click the 'Submit Quote Request' button at the bottom of the form, to send your quote request for processing.

If you are looking for a particular part and can NOT find it in our catalog or on our website, contact us directly to let us know what you need.

No Minimum Order

No minimum order dollar amount on products normally stocked in our warehouse.

Non-Stocked Items

Contact us for assistance with your request.

Order History & Status

Log in to your "My Mouser" account and click on "Order History". You can also access this information if you do not have a "My Mouser account" by providing 2 pieces of identifying information. Click here for more information. In the Order History area of your account, you will have access to the following information:

  • Track shipments - Locate your order and click on the Tracker Number at the bottom.
  • Reorder a previous order - Locate you order and Click on "Reorder Selected Items".
  • Get current order status
  • View Orders with Open Lines
  • View Shipment History
  • View Order History
  • View an Invoice or account statement

Other Ordering Options

Mouser can accept orders 24 hours a day, 7 days a week via e-mail. Phone and fax orders can be placed during normal business hours Monday through Friday. Please refer to the contact us page to obtain information for your local sales office.

Payment Terms

Accepted Currencies

  • AUD - Australian Dollar
  • CAD - Canadian Dollar
  • CHF - Swiss Franc
  • DKK - Danish Krone
  • EUR - Euro
  • GBP - Pound Sterling
  • HKD - Hong Kong Dollar
  • JPY - Japanese Yen
  • KRW - Korean Won*
  • MYR - Malaysian Ringgit*
  • NOK - Norwegian Krone
  • NZD - New Zealand Dollar
  • PHP - Philippine Peso*
  • RMB - Renminbi
  • SEK - Swedish Krona
  • SGD - Singapore Dollar
  • TWD - New Taiwan Dollar*
  • THB - Thai Baht*
  • USD - US Dollar
  • ZAR - South African Rand

*MYR, PHP, TWD, THB & KRW are only available when paying by AMEX, Visa, MasterCard. More terms are available when ordering in United States Dollar (USD).

Credit Cards

  • American Express
  • MasterCard
  • VISA

Net 30

Net Terms Can be established for businesses, schools and government agencies. Credit limits are dependent upon references and Dun & Bradstreet Ratings. You can obtain a credit application online.

Cash on Delivery

COD is only available from certain carriers within the United States. All COD fees charged by the carrier apply. Not available when shipping via the US Postal Service or using your own freight account number.

Prepaid Wire Transfer/Proforma Invoice

Mouser can accept funds wired to our bank. We will contact you with the total amount which will include shipping charges, applicable taxes and wire transfer fees. We will reserve stock for your order for 10 business days on orders awaiting funds. Orders will be canceled after 15 business days if funds have not been received.


Returns are normally accepted when completed within 30 days from date of shipment. This does not include items identified as "NCNR", "Non-Cancelable/Non-Returnable" ("Non-Standard Products"), Downloadable Software ("Digital Delivery"), or governed by a Purchase Agreement Letter.

Only products originally shipped from Mouser will be returned to Mouser. All others will be promptly quarantined and disposed of or returned to the customer. By a Customer returning products to Mouser, the Customer certifies that the products were purchased from Mouser and there has been no substitution in whole or part of same product from another supplier, distributor or other such source of the product. The return should be in the original packaging and in unused condition (except defective). ESD or moisture sensitive products should not be opened except under controlled conditions.

Return Freight charges must be prepaid; we will not accept COD shipments.

Some products may require that they be returned directly to the manufacturer.

To obtain a return authorization number, complete a Return Merchandise Authorization form or Contact Us. Your customer service representative will give you a return authorization number and the correct return address for your merchandise.

Sales Tax in the United States

Mouser is required to collect sales tax on retail sales in locations where we physically conduct business. These locations are: California, New Jersey, New York, Oklahoma and Texas.

United States Business Customers:

  • You will find additional information and exemption and resale certificate forms on our sales tax information page.
  • During checkout you will be given the option to choose if your order is taxable or nontaxable. If non-taxable, you will be given an opportunity to complete an exemption or resale certificate online, or select one already on file.


Customers are responsible for paying all applicable VAT charges.

Project Manager

Our Project Manager tool allows you to save multiple projects or part lists on our website and then order them at your convenience. You can easily add them to your shopping cart by clicking the "Order Project" button.

Building a Project

Log in to your "My Mouser" account and then use of the search methods listed below to add the parts and quantities you want to save in your project.

Once you locate the product you want, click on the part number. This will take you to the Product Detail Page where you will see a section called "My Mouser Project Manager" in the lower right corner.

Enter the quantity you want to add to your project. Select a project name from the drop down menu or select <NEW PROJECT> to create a new project. Then click the "Add to Project" button.

You can also use the EZ Buy Tool and the BOM Import Tool to add parts to your project.

Once you enter all the part numbers, select a project name from the drop down menu or select <NEW PROJECT> to create a new project. Click on either the "Import BOM" or "Add" button, depending on the application.

You can also add items in your shopping cart to an existing project or create a new project. Name your project by entering a name in the box provided at the top of your cart and click on the "Save" button. Once your project is saved, you will be taken to the Project Manager so you can add additional parts to your project. To order the project, click the "Order Project" button.

Combining Multiple Projects

Log in. Select the "View Cart" option at the top of the homepage to ensure you do not have parts in your shopping cart that you do not want added to this order. (Clear your shopping cart, if necessary, or save these items as a new project or cart.) Now click on the "Project Manager" link under the Services & Tools menu..

Click on the "Edit" link next to one of the projects that you wish to combine. In the bottom right hand corner under the merchandise total, click on the "Order Project" button. This will add the parts to your cart.

Then go into the next project following the same steps, which will add each project to your cart adding together any quantities for any duplicate products.

Once you have all of the projects in your shopping cart that you wish to combine, save your shopping cart as a new project.

Editing a Project

To view or edit projects, you must be logged in to your "My Mouser" account. Click on the Project Manager link. Then click on the Edit link next to the project name that you want to edit.

  • To Change Quantities - Type in your revised number in the "Order Qty." box and click the "Update Project" button.
  • To Remove Parts - Click the check box located next to each part number you want to delete. Then click the "Update Project" button. Or change the quantity to zero for the part you want to delete and click the "Update Project" button.
  • To Add Parts - Use the same process you used when creating your project. Refer to the "Building a Project" section above.

Ordering a Project

Log in. Select the "View Cart" option at the top of the homepage to ensure you do not have parts in your shopping cart that you do not want added to this order. (Clear your shopping cart, if necessary, or save these items as new project or cart.) Click on the "Project Manager" under the Services & Tools menu.

Click on the "Edit" link next to the project that you want to order, then click on the "Order Project" button (located at the top and bottom right of the project list). This will add the parts to your cart and you can then proceed to check out.

You can also order multiple projects on the same order. Simply go into each project that you would like to order and click on the "Order Project" button within each project. If there are any duplicate parts on the projects the quantities will be combined.

TIP: When building your project, enter the quantities it takes to build one unit. Then, if you want to buy enough to build 5 units, change the quantity in the box next to the "Order Project" button from 1 to 5. Click on the "Order Project" button and it will multiply all of the quantities in your project by 5 and add them to your cart.

Sharing a Project

Click on the "Project Manager" link under the Services & Tools menu.

Click on the "Share Project" link, and then follow the on-screen instructions.

If you share a project with your colleagues, you will have the option to either send them a read only copy that they will be able to view and order from our website, or you can send them an editable copy so that you can work together on updating and creating the project.

If you send your colleague an editable copy you will be able to see all of their changes from you Project Manager and you will have the ability to accept or deny any changes that they have made.

If you would like to share your project with a group, a web address is created that you can post or send to anyone that you would like. This works for both editable projects and read only projects.

Search by Keyword

Enter part descriptions into our search box. You can then narrow your search by selecting specific manufacturers or by clicking on product categories until you locate the products you are looking for. Additional filters are available in most product categories that allow you to refine your search down to products that meet your specific needs.

Search by Manufacturer

Click on the Manufacturers link located in the top navigation bar on our website. From the manufacturers page, select the manufacturer that you are looking for. This will take you to a page within our website that is specifically dedicated to that manufacturer. If you enter a keyword or part number into the search box in the middle of the page left-hand side, your search will be limited to their products only.

Search by Part Number

Enter part numbers into our search box. You can then narrow your search by selecting specific manufacturers or by clicking on product categories until you locate the products you are looking for. Additional filters are available in most product categories that allow you to refine your search down to products that meet your specific needs.

Search by Product Category

The Product Finder is located on the left navigation bar on Mouser.com. Click on one of the product categories listed or the View All link. Then you can narrow your search by selecting specific manufacturers, additional product categories and product attributes until you drill down to the products you are looking for.

Backorder Shipping

If more than one shipment is necessary to complete your order, Mouser will, in most cases, offer a discounted UPS Ground or FedEx Ground rate. At time of checkout, you will be able to choose the backorder shipping method and see any associated costs.

Shipping Rates & Information

Shipping rates for your order can be found in the shopping cart.

When purchasing from our US website, you can view all shipping options and rates by clicking the shipping estimate link in the shopping cart. On all other sites, the shopping cart will automatically display applicable shipping charges for your order.

Shipping charges can also be found throughout the checkout process on the Shipping Method page and Review page prior to submitting your order.

Same-Day Shipment

Same-day shipment is available on most orders received in our warehouse, Monday through Friday prior to:

  • 8 PM CST – UPS, FedEX, and DHL Shipping Methods
  • 5 PM CST – USPS Shipping Methods

Orders received after the times specified above, will ship on the following normal business day.

Shipment Notification

Once your order has been processed for shipment, you will receive an e-mail advising you of the shipping status of your order and its tracking number, if applicable. When the tracking numbers are present, you can click on the link and it will take you directly to the carriers' website so that you can track your order.

Note: It may take up to 24 hours before carriers will display tracking information.

Shipment Tracking

You will receive an e-mail confirmation as soon as your order ships. On this confirmation will be a link that will take you directly to the freight carrier's website so that you can track your order online. From our Order History page you can also locate the tracking number at the bottom of your invoice and this is also a link to track your package.

Frequently Asked Questions

Does Mouser ship to an APO or FPO address? Yes.

Does Mouser take personal checks? Yes. Checks exceeding a certain dollar value may require bank verification prior to shipping an order. Dishonored checks will be charged a $25.00 (USD) handling fee.

What is Mouser´s corporate address? Mouser Electronics, 1000 N. Main St., Mansfield, TX 76063

What is Mouser´s "Remit To" address? Remit To addresses vary based on your currency, payment method and bill to country. Please refer to your invoice for the appropriate address.

Is Mouser independently owned and operated? No.

Who is Mouser´s Quality Director? Chuck Amsden (Click Here to obtain a copy of our Quality Manual.)

Is Mouser an Equal Opportunity Employer? Yes, click here for a copy of our Affirmative Action Plan Certificate.

Does Mouser uphold and require a drug free workplace? Yes, every Mouser employee is required to pass a drug screening test prior to employment.

Does Mouser sell foreign-made equipment, material or supplies that were produced in whole or part by forced labor, convict labor or indentured labor? No.

What is Mouser´s Federal ID number? 61-1520598

What is Mouser´s Dun & Bradstreet D-U-N-S number? 16-119-4410

What is the Mouser Electronics Stock Symbol? Mouser Electronics has never been a publicly traded company.  Mouser Electronics was acquired by TTI Inc. in 2000.   In 2007, TTI, Inc. and Mouser Electronics, Inc. were acquired by Berkshire Hathaway, Inc. The ticker symbol/stock symbol for Berkshire Hathaway, Inc. is BRK-A and BRK-B on the NYSE.   The latest trading information can be found here.

How can I obtain an annual report or stockholder information? Mouser Electronics is a Berkshire Hathaway company. If you would like our parent company's annual reports or stock information, you may access Berkshire Hathaway annual reports at www.berkshirehathaway.com.

What are some other companies that are owned by Berkshire Hathaway Inc.? A listing of Berkshire Hathaway subsidiary companies can be found here.

Can I enter a schedule order online? Yes, scheduled orders can be placed and edited online. Click here for more information.

Can I view all my past orders? Yes you can view your order status and order history online. Click here for more information.

Will I receive an e-mail confirmation of my order? Yes, you will receive an e-mail confirmation when your order is submitted and you will also receive an e-mail confirmation which includes the tracker number once your order has shipped.