Official data Source: US Census Bureau international trade data Data through August 2026 · updated monthly

Track this product free during launch

Microwave tubes, not elsewhere specified

In short

  • The US imported $74.9M of this product over the 12 months to August 2026, up 21% on the year before.
  • Germany is the largest supplier, with 86.7% of US imports; Japan is next, with 13.3%.
  • Japan is the cheapest main supplier before and after freight and duty, landing at $57,139 each.
  • Duty paid averaged 1.7% of the value of imports in August 2026, down 3.8 points on a year earlier.
  • Japan is gaining share: 15.0% over the last 12 months, up from 10.6%.
  • US exports were $84.4M over the last 12 months; the largest market is United Kingdom, with 16.2%.

US imports, Aug 2026

$6.4M

↓ −13% vs Aug 2025

Last 12 months

$74.9M

↑ +21% vs the 12 months before

Average duty paid

1.7%

↓ −3.8 pts vs Aug 2025

Top supplier

Germany

86.7% of US imports

US imports by month

The last 13 months, so the same month a year ago is on the left. August 2026 is highlighted. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

Aug2025SepOctNovDecJan2026FebMarAprMayJunJulAugFrance ↓
Show the numbers
MonthUS imports
August 2025$7.3M
September 2025$6.1M
October 2025$6.6M
November 2025$5.9M
December 2025$5.9M
January 2026$5.0M
February 2026$5.4M
March 2026$5.6M
April 2026$9.2M
May 2026$5.7M
June 2026$6.2M
July 2026$7.0M
August 2026$6.4M

What changed

  • US imports were $6.4M in August 2026, down 8.9% from July 2026 and down 13% from August 2025.
  • Over the 12 months to August 2026 they totalled $74.9M, up 21% on the 12 months before.
  • Biggest moves in market share since July 2026: Germany up from 82.9% to 86.7%, United Kingdom down from 5.8% to 0.0%.
  • Average price from Japan rose 22% since July 2026, to $56,274 each.
  • Duty paid by the main suppliers held within 2 points of July 2026.

US trade by year

US imports were $74.9M in the 12 months to Aug 2026, up 60% on the 12 months to Aug 2017. US exports were $84.4M, up 6.8%. In January 2022 the HS 2022 revision moved some goods between this code and 8549.21, 8549.29, 8549.31 and 3 more, so part of a change across the dashed line can be the revision. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

2017201820192020202120222023202420252026HS 2022Duty ↑
Show the numbers
PeriodUS imports
12 months to Aug 2017$46.6M
12 months to Aug 2018$50.0M
12 months to Aug 2019$53.3M
12 months to Aug 2020$69.4M
12 months to Aug 2021$75.8M
12 months to Aug 2022$72.1M
12 months to Aug 2023$70.7M
12 months to Aug 2024$64.6M
12 months to Aug 2025$62.1M
12 months to Aug 2026$74.9M
  • Germany
  • Japan
  • France
  • Canada
  • All countries
Share of US imports
Show the numbers
PeriodGermanyJapanFranceCanada
12 months to Aug 201742.0%24.4%18.9%3.4%
12 months to Aug 201842.9%24.9%24.4%2.8%
12 months to Aug 201941.2%20.2%19.9%2.1%
12 months to Aug 202050.6%17.3%19.2%1.0%
12 months to Aug 202153.2%22.1%17.0%4.2%
12 months to Aug 202261.5%18.2%16.6%2.7%
12 months to Aug 202366.4%13.1%13.6%1.2%
12 months to Aug 202468.7%10.2%15.2%1.6%
12 months to Aug 202572.1%10.6%10.8%1.1%
12 months to Aug 202673.7%15.0%8.3%1.5%
Duty paid, % of value
Show the numbers
PeriodGermanyJapanFranceCanadaAll countries
12 months to Aug 20170.3%3.5%2.7%0.0%1.5%
12 months to Aug 20180.3%3.6%1.7%0.1%1.4%
12 months to Aug 20190.0%3.5%1.8%0.1%1.1%
12 months to Aug 20200.0%3.6%1.0%0.0%0.9%
12 months to Aug 20210.3%3.6%1.5%1.6%1.3%
12 months to Aug 20220.0%3.4%1.3%0.0%0.9%
12 months to Aug 20230.0%3.6%1.1%0.4%0.8%
12 months to Aug 20240.0%3.5%1.7%1.0%0.8%
12 months to Aug 20250.0%7.7%6.0%0.1%1.8%
12 months to Aug 20260.0%10.4%3.7%0.0%2.0%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$74.9M+21%2.0%+0.2 pts$84.4M+2.0%
12 months to Aug 2025$62.1M−3.9%1.8%+1.0 pts$82.8M−1.5%
12 months to Aug 2024$64.6M−8.6%0.8%0.0 pts$84.0M+11%
12 months to Aug 2023$70.7M−1.9%0.8%0.0 pts$75.5M−21%
12 months to Aug 2022HS 2022 revision$72.1M−4.9%0.9%−0.4 pts$95.3M+2.3%
12 months to Aug 2021$75.8M+9.2%1.3%+0.5 pts$93.2M+36%
12 months to Aug 2020$69.4M+30%0.9%−0.3 pts$68.5M+13%
12 months to Aug 2019$53.3M+6.6%1.1%−0.3 pts$60.5M−9.8%
12 months to Aug 2018$50.0M+7.2%1.4%−0.1 pts$67.1M−15%
12 months to Aug 2017$46.6M1.5%$79.1M

Who supplies the US

August 2026. Small figures under each value are the change from August 2025. Landed cost by origin, below, adds freight and duty to the price.

CountryUS importsShareAverage priceDuty paidLast 13 months
Germany$5.5M86.7%+25.1 pts$68,900 each+8.8%0.0%0.0 pts
Japan$844K13.3%+1.5 pts$56,274 each+6245%12.5%−6.1 pts
All countries$6.4M100.0%$66,906 each+5660%1.7%−3.8 pts

The 3 largest suppliers had 97.1% of US imports over the last 12 months.

Landed cost by origin

What importers paid to land this product at a US port from each main supplier, June–August 2026: the price, freight and insurance to the first US port, and duty, per unit. Suppliers with 3% or more of these imports, cheapest landed first. Small figures under landed cost are the change from the same months a year earlier.

  • Price
  • Freight and insurance
  • Duty
CountryPriceFreight and insuranceDutyLanded costMake-up
Japan$50,279 each$193.97 each0.4% of price$6,665 each13.3% of price$57,139 each+3461%
Germany$68,900 each$4.16 each0.0% of price$0.00 each0.0% of price$68,904 each+9.9%
All countries$18,308 each$13.95 each0.1% of price$420.21 each2.3% of price$18,742 each+784%

Landed at a US port, Japan was cheapest, at $57,139 each: 17.1% below Germany.

Landed cost from Japan rose 3461% on a year earlier, to $57,139 each, mostly on price: $1,382 each then, $50,279 each now.

How the market is shifting

Japan gained the most share: 15.0% of US imports over the last 12 months, up from 10.6% in the 12 months before. United Kingdom lost the most: 1.4%, down from 5.3%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

  • Germany
  • Japan
  • France
  • Canada
  • All countries
Share of US imports
Show the numbers
MonthGermanyJapanFranceCanada
September 202459.1%22.7%12.7%5.5%
October 20240.0%28.2%67.8%4.0%
November 202489.3%3.1%7.6%0.0%
December 202475.7%9.5%14.7%0.2%
January 20250.0%94.9%5.1%0.0%
February 202561.7%10.3%8.7%4.5%
March 202563.1%15.2%10.1%0.0%
April 202586.5%0.0%5.7%0.0%
May 202579.6%0.3%2.0%0.4%
June 202582.4%12.9%0.9%0.0%
July 202579.1%17.0%1.3%2.7%
August 202561.6%11.8%26.1%0.1%
September 202578.5%12.5%8.7%0.0%
October 202554.9%29.7%13.2%1.2%
November 202581.0%6.9%5.1%7.0%
December 202579.1%12.9%7.9%0.0%
January 202685.4%10.2%1.9%0.0%
February 202673.2%16.2%2.0%0.0%
March 202681.9%6.6%0.4%10.9%
April 202636.1%24.3%39.6%0.0%
May 202693.4%5.7%0.8%0.0%
June 202674.5%23.2%2.3%0.0%
July 202682.9%11.2%0.0%0.0%
August 202686.7%13.3%0.0%0.0%
Duty paid, % of value
Show the numbers
MonthGermanyJapanFranceCanadaAll countries
September 20240.0%3.7%1.2%0.1%1.0%
October 2024n/a3.4%2.1%0.0%2.4%
November 20240.0%3.7%1.9%n/a0.3%
December 20240.0%3.5%1.5%0.0%0.5%
January 2025n/a3.7%3.7%n/a3.7%
February 20250.0%3.4%3.6%0.0%1.2%
March 20250.0%3.7%3.7%25.0%1.3%
April 20250.0%n/a12.9%n/a0.9%
May 20250.0%13.7%13.7%0.0%2.7%
June 20250.0%13.7%13.7%n/a2.4%
July 20250.0%13.4%13.7%0.0%2.5%
August 20250.0%18.6%12.3%0.0%5.5%
September 20250.0%15.0%15.0%n/a3.2%
October 20250.0%4.2%1.9%0.0%1.6%
November 20250.0%15.0%5.2%0.0%1.3%
December 20250.0%15.0%4.6%n/a2.3%
January 20260.0%15.0%6.7%n/a2.0%
February 20260.0%14.6%14.4%n/a3.4%
March 20260.0%13.7%13.7%0.0%1.0%
April 20260.0%4.6%1.4%n/a1.7%
May 20260.0%12.7%3.1%n/a0.8%
June 20260.0%13.7%13.7%n/a3.5%
July 20260.0%13.3%n/an/a1.8%
August 20260.0%12.5%n/an/a1.7%

Tariff actions touching this product

When the duty paid on this product changed and stayed changed, for its main suppliers and all countries, newest first, with the Federal Register notices that named the product in the 3 months before. Rates are medians of the 4 months either side, less any usual seasonal swing. A change shows what happened to duty paid, not why; read each notice for what it did.

  1. November 2025 · Duty paid: France 11.2% → 5.4%.
  2. March–May 2025 · Duty paid: Japan 3.7% → 13.6%, France 2.1% → 13.4%.

Where it enters the US

Main ports of entry over the 12 months to August 2026: US imports and share.

  1. Washington, DC$16.1M · 21.4%
  2. Orlando, FL$13.2M · 17.6%
  3. Miami International Airport, FL$12.2M · 16.3%
  4. Atlanta, GA$11.7M · 15.7%
  5. San Francisco International Airport, CA$8.4M · 11.3%

Where US exports go

US exports were $6.4M in August 2026, up 1.5% from August 2025, and $84.4M over the last 12 months, up 2.0% on the 12 months before. Fastest-growing market with 3% or more of US exports: Japan, up 551%.

MarketLast 12 monthsSharevs 12 months before
United Kingdom$13.7M16.2%+27%
Japan$12.1M14.3%+551%
Canada$10.5M12.5%−9.3%
China$9.4M11.2%−21%
Sweden$6.4M7.6%−31%
Korea, South$5.9M7.0%+11%
India$5.7M6.7%−11%
Taiwan$3.5M4.2%+39%
Other countries (23)$17.1M20.3%−7.3%
All countries$84.4M100.0%+2.0%

Markets abroad

Each country's own import figures for this product, from UN Comtrade: the 8 biggest importers outside the US in the latest year each has reported, what they bought from the US, and the change from the year before. Values usually include freight and insurance to the importer's border, so they run a little above US export figures. Countries report a year or more late; 83 have reported 2025 so far. Where a country's figure for imports from the US is under half or over double what the US recorded exporting there that year, the US figure is shown under it.

MarketImportsvs year beforeFrom the USUS share
Japan$44.1Min 2025−9.7%$36.9MUS records $967K83.7%
Canada$27.0Min 2025+107%$14.4M53.2%
Korea, South$22.5Min 2025−3.7%$7.1M31.6%
Sweden$20.9Min 2025+245%$15.7M74.8%
United Kingdom$20.6Min 2025+95%$7.4M35.9%
France$18.7Min 2025−28%$2.3M12.5%
China$15.0Min 2025−4.8%$10.7M71.4%
Germany$6.9Min 2025−8.1%$4.5MUS records $1.9M65.0%

The biggest market outside the US is Japan, which imported $44.1M of this product in 2025, 83.7% of that from the US by its own count; the US records $967K of exports there.

Of these, imports into Sweden grew fastest: up 245% from 2024 to 2025.

Other products under heading 8540: thermionic, cold cathode or photocathode tubes (vacuum, vapor or gas filled tubes, cathode-ray tubes, television camera tubes etc.); parts thereof. US trade over the 12 months to August 2026.

About these figures
  • Source: US Census Bureau international trade data, not seasonally adjusted, in US dollars. Retrieved November 3, 2026.
  • US imports are general imports at customs value, which excludes freight and insurance. Exports are at free-alongside-ship value.
  • Average price is customs value divided by quantity (number of items), across all of the product's 10-digit lines.
  • Duty paid is the duty Census calculates on each country's imports for consumption, as a share of their value. It moves with tariff changes, exemptions and the mix of goods within the product.
  • Landed cost adds Census's import charges (freight, insurance and other costs of bringing the goods to the first US port) and calculated duty to the customs value, per unit, across the product's 10-digit lines. It leaves out antidumping and countervailing duties, customs fees and transport inland. Prices are averages across the goods within the code, so a lower one can mean cheaper goods, not the same goods for less.
  • Markets abroad are each country's imports as it reports them to UN Comtrade, in US dollars, usually including freight and insurance. Countries report a year or more late and in their own edition of the HS codes, so one still on an older edition is missing for codes that changed in 2022.
  • Census revises recent months, so figures can change slightly. These are estimates for research and planning, not customs or legal advice.

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