HS code · 6-digit subheading
HS Code 8543.20 – Electrical machines and apparatus; signal generators
HS code 8543.20 is the 6-digit subheading for electrical machines and apparatus, signal generators. It is used for function generators, arbitrary waveform generators, RF signal generators, pulse generators and vector signal generators.
What HS 8543.20 covers
This category encompasses signal generators, which are essential electrical apparatus used to create various types of electrical signals, including sine waves, square waves, pulse waves, and arbitrary waveforms. These devices are indispensable tools for testing, troubleshooting, and designing electronic circuits and systems across numerous industries. They are widely used in telecommunications, electronics manufacturing, research and development, and education. Major importers include countries with robust electronics industries, R&D centers, and educational institutions, such as China, USA, Germany, and Japan. Exporters are typically nations with strong capabilities in precision electronics manufacturing and test & measurement equipment, including the USA, Germany, Japan, and Switzerland. Key considerations in this trade involve frequency range, waveform types, accuracy, stability, and advanced modulation capabilities. The market is driven by the continuous innovation in electronics and the need for precise signal generation for testing and development.
- Covers
- Function generators
- Arbitrary waveform generators
- RF signal generators
- Pulse generators
- Vector signal generators
- Audio signal generators
- Pattern generators
- Examples
- Keysight 33500B
- Rohde & Schwarz SMB100A
- Tektronix AFG31000
- Anritsu MG3710A
- National Instruments PXIe-5450
- Rigol DG800 series
Codes often confused with 8543.20
Common mistake. Can be confused with frequency counters (903089) or oscilloscopes (903020) which are related test equipment, but 854320 is specifically for *generating* signals, not measuring them.
Top exporters and importers of HS code 854320, 2025
In 2025, the largest exporter of HS code 854320 in UN Comtrade data was Japan, with 17% of world exports; the largest importer in UN Comtrade data was China, with 14% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Japan $380M 17% of world exports
- 2 Malaysia $293M 13% of world exports
- 3 Germany $277M 12% of world exports
World total: $2.2B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $262M 14% of world imports
- 2 Ukraine* ~$245M 13% of world imports · partner records ↗
- 3 United States $141M 7.3% of world imports
World total: $1.9B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 8543.20
Brazil does not split HS 8543.20: its NCM code is 8543.20.00.
All Brazil NCM codes in heading 85.43 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8543.20
What is HS code 854320?
HS code 854320 is a 6-digit subheading in the Harmonized System that covers: Electrical machines and apparatus; signal generators. This category encompasses signal generators, which are essential electrical apparatus used to create various types of electrical signals, including sine waves, square waves, pulse waves, and arbitrary waveforms. These devices are indispensable tools for testing, troubleshooting, and designing electronic circuits and systems across numerous industries. They are widely used in telecommunications, electronics manufacturing, research and development, and education. Major importers include countries with robust electronics industries, R&D centers, and educational institutions, such as China, USA, Germany, and Japan. Exporters are typically nations with strong capabilities in precision electronics manufacturing and test & measurement equipment, including the USA, Germany, Japan, and Switzerland. Key considerations in this trade involve frequency range, waveform types, accuracy, stability, and advanced modulation capabilities. The market is driven by the continuous innovation in electronics and the need for precise signal generation for testing and development.
What products fall under HS code 854320?
Function generators, Arbitrary waveform generators, RF signal generators, Pulse generators, Vector signal generators, Audio signal generators, Pattern generators
What are common misclassifications for HS code 854320?
Can be confused with frequency counters (903089) or oscilloscopes (903020) which are related test equipment, but 854320 is specifically for *generating* signals, not measuring them.
Which countries are the top exporters of goods under HS code 854320?
In 2025, the top exporters of HS code 854320 in UN Comtrade data were Japan ($380M, 17% of world exports), Malaysia ($293M) and Germany ($277M). World exports came to about $2.2B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 854320?
In 2025, the top importers of HS code 854320 in UN Comtrade data were China ($262M, 14% of world imports), Ukraine (about $245M) and the United States ($141M). World imports came to about $1.9B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 854320 structured?
HS code 854320 is a 6-digit subheading under the Harmonized System. The first 2 digits (85) identify the chapter, digits 3-4 (43) identify the heading, and digits 5-6 (20) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 854320?
In Brazil, HS code 854320 is NCM 8543.20.00. The last two digits are 00 because Brazil does not split this HS code further.