At TTI, we’re committed to supporting you through changing global trade and tariff regulations. Below you'll find helpful information about when tariffs might apply, how we handle billing, and ways we work to reduce your costs. For official updates and policy details, please visit the Office of the United States Trade Representative (USTR).
On May 12, 2025, the United States announced that a trade deal had been reached with Chinese officials following a meeting in Geneva, Switzerland. Both sides would reduce retaliatory tariffs implemented on April 9, 2025, and they would be effective by May 14, 2025. The result keeps all tariffs in place previous to the US announcement of Reciprocal Tariffs on April 2, 2025, and would reduce the Reciprocal tariff on China-origin goods to 10%. Section 301, Section 232, and IEEPA Fentanyl Tariffs will remain. China will reduce the tariff on US imports from 125% to 10%.
On April 9, 2025, the United States increased the Reciprocal Tariffs on China exports to 125% in response to China’s increase on U.S. exports to 84%. This was in addition to the existing Section 301 and IEEPA tariffs, amounting to a total of 170% on a significant number of U.S. imports of China-origin goods. The United States also paused the increase of Reciprocal Tariffs on the 60 previously named countries leaving in place a tariff of 10% on all imports into the U.S., with the exception of China, Hong Kong, Mexico, and Canada. This pause is set to expire on July 8, 2025.
On April 5, 2025, CSMS # 64724565 was issued by U.S. Customs and Border Protection, providing additional exclusions to the Reciprocal Tariffs.
On April 2, 2025, the President of the United States issued an Executive Order imposing a Reciprocal Tariff of 10% on the import of all goods into the U.S. The new rates are expected to be effective at 12:01 a.m. on April 5, 2025. In addition, tariff rates on imports for 60 specifically-named countries would take effect on April 9, 2025, per Annex I of the Executive Order.
Exceptions to the newly introduced Reciprocal Tariffs, identified by 8-digit Harmonized Tariff Codes, were added as Annex II of the Section 232 Tariffs.
On March 3, 2025, the President announced the implementation of tariffs on products imported from Canada and Mexico under the International Emergency Economic Powers Act (IEEPA).
The executive order imposed a 25% tariff on imports from Canada and Mexico. It also increased the tariff rate on Chinese imports, including Hong Kong, from 10% to 20%. All changes are effective from March 4, 2025.
The recent changes to U.S. trade policy are beyond our control. Rest assured, we remain dedicated to serving our customers and will keep you informed with regular updates on this page as more information becomes available.
On February 4, 2025, new, increased tariffs came into effect for many types of imports from China. This action was taken using powers claimed by the President under the International Emergency Economic Powers Act (IEEPA), which allows the President to regulate commerce in response to national emergencies.
The new tariff of 10% is in addition to any current tariffs on Chinese imports.
Effective January 1, 2025, the tariff rate for semiconductors classified in HTS headings 8541 and 8542 was increased from 25% to 50%. While we have done our best to avoid passing tariff charges onto our customers, we are charging a percentage of the imposed tariffs on some of the products shipped within the United States and US territories. By charging a portion of the tariffs incurred by Mouser, we can ensure that these products are available in stock and ready to ship on demand.
The chart below lists the products under HTS headings 8541 and 8542 that had their tariffs increased from 25% to 50% on January 1, 2025. All other products with HTS codes already subject to tariff charges will remain unchanged.
Since July 2018, the U.S. Trade Representative (USTR) has imposed a 25% tariff on certain China-related products imported to the United States under Section 301 of the Tariff Act of 1930.
This applies to all products classified under the Harmonized Tariff Schedule (HTS) of the United States with China as the country of origin.
The chart below lists the products under HTS headings 8541 and 8542 that had their tariffs increased from 25% to 50% on January 1, 2025. All other products with HTS codes already subject to tariff charges will remain unchanged.
| HTS Subheading | Product Description |
|---|---|
| 8541.10.00 | Diodes, other than photosensitive or light-emitting diodes |
| 8541.21.00 | Transistors, other than photosensitive transistors, with a dissipation rating of 1 W or more |
| 8541.29.00 | Transistors, other than photosensitive transistors, with a dissipation rating of 1 W or more |
| 8541.30.00 | Thyristors, diacs, and triacs, other than photosensitive devices |
| 8541.49.10 | Other photosensitive semiconductor diodes, other than light-emitting |
| 8541.49.70 | Photosensitive transistors |
| 8541.49.80 | Photosensitive semiconductor devices nesoi, optical coupled isolators |
| 8541.49.95 | Other photosensitive semiconductor devices, other than diodes or transistors, nesoi |
| 8541.51.00 | Other semiconductor-based transducers, other than photosensitive transducers |
| 8541.59.00 | Other semiconductor devices, other than semiconductor-based transducers, other than photosensitive devices, nesoi |
| 8541.90.00 | Parts of diodes, transistors, similar semiconductor devices, photosensitive semiconductor devices, LEDs and mounted piezoelectric crystals |
| 8542.31.00 | Electronic integrated circuits: processors and controllers |
| 8542.32.00 | Electronic integrated circuits: memories |
| 8542.33.00 | Electronic integrated circuits: amplifiers |
| 8542.39.00 | Electronic integrated circuits: other |
| 8542.90.00 | Parts of electronic integrated circuits and microassemblies |
Products that may be subject to tariffs have a "Tariff May Apply" notation on the part search and part detail pages.
Tariff charges may be invoiced one of two ways:
Tariff charges may be invoiced with the impacted parts or as a separate monthly bill. For billing and invoicing questions, please contact your sales representative. The Billing rates may vary by supplier and whether TTI is the "Importer of Record."
Invoiced with the parts: The tariff amount will be charged and listed with the related line item.
Invoices may be processed in one of the following ways:
We actively work to reduce the burden of tariffs through several strategies
To ensure successful tariff mitigation on exports: