Sourcing operational amplifier ICs from China

UK duty on operational amplifier ICs

Heading 8542 covers electronic integrated circuits. Operational amplifier ICs fall within its amplifier branch. The table separates ordinary amplifier ICs from qualifying multi-component integrated circuits; several product descriptions share the ordinary amplifier code.

Read from the UK Trade Tariff on 30 September 2026, both amplifier lines carried 0% duty for goods from China. The supplied tariff records list no anti-dumping or countervailing measures, suspensions or attached import controls for either line.

Confirm the commodity code against the device construction and datasheet before ordering. For the wider heading, see integrated circuits and chips.

Specify the amplifier for your circuit

Specify the manufacturer, complete ordering code, package, pin assignment and temperature grade. Record the supply range, input common-mode range, output swing under load, input offset, bias current, noise, bandwidth and slew rate needed by your circuit. Agree whether substitutions are permitted and require approval before any change.

Check stability at the intended gain and capacitive load. A matching package does not establish electrical interchangeability. Approve samples in the intended circuit and agree which datasheet limits the supplier will test.

For Great Britain, component parts sold business to business are outside the hazardous-substance restriction rules, but the finished assembly must comply. The manufacturer must establish component compliance before incorporation. Ask for part-specific substance declarations and supporting records.

Worked duty example

Illustrative example, not a quote: Illustrative order of operational amplifier ICs on reels under 8542 33 90 00, invoiced at £40,000 free on board, with £600 of freight and insurance to the UK. The customs value is £40,600. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £40,600, so it is £8,120. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.

Inspection checklist

Identity: match device markings, package, pin orientation and reel labels to the approved ordering code; investigate sanding, inconsistent fonts or unexplained marking differences.

Traceability: reconcile manufacturer records, supplier paperwork, date codes and lot numbers; keep batches identifiable and retain samples.

Electrical performance: test input offset, bias current, supply current and output swing against agreed datasheet limits; check noise and stability in the intended circuit.

Packing and solderability: inspect sealed moisture barrier bags, desiccant and humidity indicators where specified; check leads, contamination and solderability, particularly for older stock.

What goes wrong

A remarked or recycled amplifier can look correct yet fail offset, noise or temperature checks. An unapproved substitute may oscillate, clip near a supply rail or disturb a sensor signal through excessive input bias current. Visual inspection alone cannot establish performance.

Mixed lots make failures difficult to trace. Damaged moisture protection and poor handling can cause assembly failures. Keep suspect stock separate, compare it with retained approved samples and obtain an explanation before accepting a replacement.

Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For components and parts, see sourcing for manufacturers.