HTS Code · Chapter 85 · Updated Oct 26, 2026

8543.70.45.00Electric synchros and transducers

Also written 8543704500 and 8543.70.4500

HTS Code 8543.70.45.00 covers any article best defined as Machinery and Mechanical Appliances; Electrical Equipment; Parts Thereof; Sound Recorders and Reproducers, Television Image and Sound Recorders and Reproducers, and Parts and Accessories of Such ArticlesElectrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articlesElectrical machines and apparatus, having individual functions, not specified or included elsewhere in this chapter; parts thereof:Other machines and apparatus:Electric synchros and transducers; flight data recorders; defrosters and demisters with electric resistors for aircraft:Other in the Harmonized Tariff Schedule.

From China, the total duty on 8543.70.45.00 last changed on Jul 24, 2026, from 37.6% to 40.1%. It has changed 2 times since Nov 17, 2025.

Estimated Duty on 8543.70.45.00

$10,000.00 by ocean, entered Oct 26, 2026

Country of origin

China

Total duty: 40.1%; $4,010.00 on this shipment
Fees: 0.47%; MPF + HMF · $47.14
Duty + fees: 40.57%; Payable to CBP
Landed cost: $14,057.14; On $10,000.00 customs value

Base duty2.6%
Section 301 – China25%
Section 301 – Forced Labor12.5%
Customs fees0.47%

Chapter 99 lines9903.88.02 Section 301 China: List 29903.05.31 Section 301 Forced Labor – China

7 exemptions could lower this

So could Agreement on Trade in Civil Aircraft. Check them against your real shipment details.

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Base Duty Rates for 8543.70.45.00

From the Harmonized Tariff Schedule

General Rate of Duty: 2.6%
Special Rate of Duty: Free; A*AUBHCCLCODEILJOKRMAOMPPAPESSG
Column 2 (Non-NTR): 35%
Units of Quantity: No.

Total duty by countryAll 20 →

China40.1%
Mexico12.6%
Canada12.6%
Vietnam15.1%
Germany10%

Tariff updates

Recent US tariff actions that name 8543.70.45.00 or its heading.

Jul 23, 2026 · PublishedUS imposes 50% Section 338 duty on certain Canadian products over alcohol bans
Jul 21, 2026 · CBP guidanceUSTR imposes 25% Section 301 tariff on goods of Brazil, with exemptions, from July 22, 2026
Dec 18, 2025 · PublishedUS cuts reciprocal tariff on Swiss and Liechtenstein goods to 15% all-in, exempts certain products

All tariff updates

Tariffs by country · Oct 26, 2026

US Import Duty on HTS 8543.70.45.00 by Country of Origin

As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from China pay 40.1% in duties: the 2.6% base rate plus Section 301 – China (25%) and Section 301 – Forced Labor (12.5%). Of the 20 largest sources of US imports, the lowest total is 10%, from Germany, Taiwan and 3 more.

Total duty from China

40.1%

Base rate plus 2 additional tariffs

Lowest total duty

10%

From Germany, Taiwan and 3 more

Countries with additional tariffs

20 of 20

Section 232, 301 and other Chapter 99 duties

Country of origin	Base rate	Additional tariffs	Total duty
China	2.6%	Section 301 – China25%9903.88.02 Section 301 – Forced Labor12.5%9903.05.31	40.1%12.5% with Agreement on Trade in Civil Aircraft
Mexico	2.6%	Section 301 – Forced Labor10%9903.05.55	12.6%0% with USMCA
Canada	2.6%	Section 301 – Forced Labor10%9903.05.29	12.6%0% with USMCA
Vietnam	2.6%	Section 301 – Forced Labor12.5%9903.05.84	15.1%12.5% with Agreement on Trade in Civil Aircraft
Germany	2.6%	Section 301 – Forced Labor7.4%9903.05.39	10%
Japan	2.6%	Section 301 – Forced Labor9.9%9903.05.49	12.5%
South Korea	2.6%	Section 301 – Forced Labor9.9%9903.05.71	12.5%
Taiwan	2.6%	Section 301 – Forced Labor7.4%9903.05.76	10%
India	2.6%	Section 301 – Forced Labor10%9903.05.44	12.6%10% with Agreement on Trade in Civil Aircraft
Ireland	2.6%	Section 301 – Forced Labor7.4%9903.05.39	10%
Italy	2.6%	Section 301 – Forced Labor7.4%9903.05.39	10%
Switzerland	2.6%	Section 301 – Forced Labor9.9%9903.05.74	12.5%
Thailand	2.6%	Section 301 – Forced Labor12.5%9903.05.77	15.1%12.5% with Agreement on Trade in Civil Aircraft
Malaysia	2.6%	Section 301 – Forced Labor10%9903.05.54	12.6%10% with Agreement on Trade in Civil Aircraft
United Kingdom	2.6%	Section 301 – Forced Labor10%9903.05.81	12.6%10% with Agreement on Trade in Civil Aircraft
France	2.6%	Section 301 – Forced Labor7.4%9903.05.39	10%
Indonesia	2.6%	Section 301 – Forced Labor10%9903.05.45	12.6%10% with Agreement on Trade in Civil Aircraft
Brazil	2.6%	Section 301 – Brazil25%9903.05.01 Section 301 – Forced Labor12.5%9903.05.27	40.1%37.5% with Agreement on Trade in Civil Aircraft
Bangladesh	2.6%	Section 301 – Forced Labor10%9903.05.26	12.6%10% with Agreement on Trade in Civil Aircraft
Cambodia	2.6%	Section 301 – Forced Labor10%9903.05.28	12.6%10% with Agreement on Trade in Civil Aircraft

Duty from each country, in words

As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from China pay 40.1% in duties: the 2.6% base rate plus Section 301 – China (25%) and Section 301 – Forced Labor (12.5%). With Agreement on Trade in Civil Aircraft, qualifying goods pay 12.5%.
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Mexico pay 12.6% in duties: the 2.6% base rate plus Section 301 – Forced Labor (10%). With USMCA, qualifying goods pay 0%.
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Canada pay 12.6% in duties: the 2.6% base rate plus Section 301 – Forced Labor (10%). With USMCA, qualifying goods pay 0%.
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Vietnam pay 15.1% in duties: the 2.6% base rate plus Section 301 – Forced Labor (12.5%). With Agreement on Trade in Civil Aircraft, qualifying goods pay 12.5%.
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Germany pay 10% in duties: the 2.6% base rate plus Section 301 – Forced Labor (7.4%).
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Japan pay 12.5% in duties: the 2.6% base rate plus Section 301 – Forced Labor (9.9%).
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from South Korea pay 12.5% in duties: the 2.6% base rate plus Section 301 – Forced Labor (9.9%).
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Taiwan pay 10% in duties: the 2.6% base rate plus Section 301 – Forced Labor (7.4%).
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from India pay 12.6% in duties: the 2.6% base rate plus Section 301 – Forced Labor (10%). With Agreement on Trade in Civil Aircraft, qualifying goods pay 10%.
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Ireland pay 10% in duties: the 2.6% base rate plus Section 301 – Forced Labor (7.4%).
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Italy pay 10% in duties: the 2.6% base rate plus Section 301 – Forced Labor (7.4%).
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Switzerland pay 12.5% in duties: the 2.6% base rate plus Section 301 – Forced Labor (9.9%).
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Thailand pay 15.1% in duties: the 2.6% base rate plus Section 301 – Forced Labor (12.5%). With Agreement on Trade in Civil Aircraft, qualifying goods pay 12.5%.
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Malaysia pay 12.6% in duties: the 2.6% base rate plus Section 301 – Forced Labor (10%). With Agreement on Trade in Civil Aircraft, qualifying goods pay 10%.
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from United Kingdom pay 12.6% in duties: the 2.6% base rate plus Section 301 – Forced Labor (10%). With Agreement on Trade in Civil Aircraft, qualifying goods pay 10%.
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from France pay 10% in duties: the 2.6% base rate plus Section 301 – Forced Labor (7.4%).
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Indonesia pay 12.6% in duties: the 2.6% base rate plus Section 301 – Forced Labor (10%). With Agreement on Trade in Civil Aircraft, qualifying goods pay 10%.
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Brazil pay 40.1% in duties: the 2.6% base rate plus Section 301 – Brazil (25%) and Section 301 – Forced Labor (12.5%). With Agreement on Trade in Civil Aircraft, qualifying goods pay 37.5%.
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Bangladesh pay 12.6% in duties: the 2.6% base rate plus Section 301 – Forced Labor (10%). With Agreement on Trade in Civil Aircraft, qualifying goods pay 10%.
As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Cambodia pay 12.6% in duties: the 2.6% base rate plus Section 301 – Forced Labor (10%). With Agreement on Trade in Civil Aircraft, qualifying goods pay 10%.

Duties on goods entered Oct 26, 2026 at the general rate (Column 2 where it applies), with tariff data verified through 2026 HTS Revision 20. Totals are before customs fees (MPF, HMF) and any antidumping or countervailing duties (AD/CVD); with a free account, the calculator checks the AD/CVD cases that may cover your import. Some tariffs and exemptions depend on details such as metal content or end use, which the calculator asks about. See US tariffs for every country.

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8543.70.45.00from China40.1% → 50.1%

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Top origins · US imports 2025

Top Origins: Countries the US Imports HTS 8543.70.45.00 From

In 2025 the US imported $1.5B of electric synchros and transducers (HTS 8543.70.45.00), up 3% on 2024, mostly from Mexico (39%), Germany (8%) and Japan (8%). Each country's total duty today is shown beside its imports.

Country of origin	US imports, 2025	Share	vs 2024	Total duty today
Mexico	$596M	39%	2%	12.6%0% with USMCA
Germany	$124M	8%	9%	10%
Japan	$119M	8%	2%	12.5%
China	$97M	6%	7%	40.1%12.5% with Agreement on Trade in Civil Aircraft
Israel	$94M	6%	77%	15.1%12.5% with Agreement on Trade in Civil Aircraft
United Kingdom	$75M	5%	0%	12.6%10% with Agreement on Trade in Civil Aircraft
Canada	$65M	4%	30%	12.6%0% with USMCA
France	$52M	3%	23%	10%
Taiwan	$48M	3%	39%	10%
Thailand	$45M	3%	86%	15.1%12.5% with Agreement on Trade in Civil Aircraft

Source: U.S. Census Bureau, general imports. Duty on a $10,000 ocean shipment entered today, before customs fees. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Legal notes

Relevant HTS Notes

Official USITC notes that may affect classification under HTS 8543.70.45.00.

Section 16 NotesMachinery and Mechanical Appliances; Electrical Equipment; Parts Thereof; Sound Recorders and Reproducers, Television Image and Sound Recorders and Reproducers, and Parts and Accessories of Such Articles Chapter 85 NotesElectrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles

CBP rulings

Related CROSS Rulings for HTS 8543.70.45.00

CBP classification rulings related to 8543.70.45.00. Open a ruling to read how Customs classified a similar product.

hq H314368Mar 29, 2024

Protest and Application for Further Review No 4501-20-101593; Classification of Proximity Sensors

8543.70.459903.88.02

hq H300305Oct 7, 2019

Tariff classification of Allegro Microsystems “CA/CB and GTS Integrated Circuits (GTS I and II)”

8543.70.45

Questions

HTS 8543.70.45.00 FAQ

Something else? Ask us.

What does HTS code 8543.70.45.00 cover?

HTS code 8543.70.45.00 covers electric synchros and transducers (Other), classified under Chapter 85 (Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles) in the US Harmonized Tariff Schedule. The general duty rate is 2.6%.

What is the duty rate for HTS 8543.70.45.00?

The general (Column 1) rate of duty for HTS 8543.70.45.00 is 2.6%. Goods that qualify for a trade program can enter at the special rate: Free (A*,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG). The Column 2 rate, for countries without normal trade relations, is 35%. Additional Chapter 99 tariffs, such as Section 301 and Section 232, can apply on top depending on the country of origin.

What is the US tariff on electric synchros and transducers (HTS 8543.70.45.00) from China?

What is the US tariff on electric synchros and transducers (HTS 8543.70.45.00) from Vietnam?

As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Vietnam pay 15.1% in duties: the 2.6% base rate plus Section 301 – Forced Labor (12.5%). Goods that qualify for Agreement on Trade in Civil Aircraft pay 12.5%.

What is the US tariff on electric synchros and transducers (HTS 8543.70.45.00) from Mexico?

As of Oct 26, 2026, US imports of electric synchros and transducers (HTS 8543.70.45.00) from Mexico pay 12.6% in duties: the 2.6% base rate plus Section 301 – Forced Labor (10%). Goods that qualify for USMCA pay 0%.

Where does the US import HTS 8543.70.45.00 from?

In 2025 the US imported $1.5B of electric synchros and transducers under HTS 8543.70.45.00, mostly from Mexico (39%), Germany (8%) and Japan (8%), according to U.S. Census Bureau import data.

Which country has the lowest US duty on HTS 8543.70.45.00?

Of the 20 largest sources of US imports, the lowest total duty on HTS 8543.70.45.00 is 10%, from Germany, Taiwan and 3 more, as of the tariffs in effect on 2026-10-26.

Sources

Primary Sources

The official documents behind the rates and tariffs on this page. Duties are worked out from them as of Revision 20 (2026); check the legal text before you file.