Sourcing tantalum capacitors from China

UK duty on tantalum capacitors

Heading 8532 covers fixed, variable and adjustable electrical capacitors. Tantalum fixed capacitors fall under 8532 21 00 00. The table shows different tantalum forms sharing that commodity line. See the wider capacitors guide for other capacitor families.

Read from the UK Trade Tariff on 30 September 2026, tantalum capacitors from China carried 0% duty. The supplied tariff record lists no anti-dumping or countervailing duty, suspensions or attached import controls for this line. Import VAT is separate from customs duty.

Confirm the classification against the actual goods and supplier datasheet before shipping, especially when buying assembled boards rather than loose components. Use finding your commodity code to check the description.

Specify the tantalum construction and circuit conditions

Order by manufacturer and complete part number. State whether you need manganese-dioxide or conductive-polymer tantalum, surface-mount or leaded construction, capacitance and tolerance, rated voltage, temperature range, case dimensions and termination finish. Include equivalent series resistance, leakage current and ripple-current limits with their measurement conditions.

Give the supplier the operating voltage, transient conditions, polarity and assembly process. Ask your circuit designer to approve voltage derating and surge suitability against the selected datasheet. Agree reel orientation, moisture handling where applicable and batch traceability. Require written approval before any substitute part is supplied.

Request restricted-substance declarations and material evidence tied to the ordered part numbers so the finished electrical product can meet the applicable restrictions. The finished-product manufacturer must determine compliance even when component suppliers provide confirmation.

Worked duty example

Illustrative example, not a quote: 9,000 tantalum capacitors, illustrative order under 8532 21 00 00, invoiced at £18,000 free on board, with £300 of freight and insurance to the UK. The customs value is £18,300. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £18,300, so it is £3,660. 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 manufacturer, complete part number, lot and date codes across reels, cartons and certificates. Inspect for altered labels or evidence of previous soldering.

Electrical results: sample each lot for capacitance, equivalent series resistance and leakage using the agreed datasheet conditions. Record results against the purchased grade.

Polarity and package: verify polarity markings and tape orientation against the datasheet. Check dimensions, cracked moulding, damaged leads and termination condition.

Packing and evidence: check seals and moisture information where applicable, and match substance declarations to the delivered parts. Agree the scope using the quality inspection guide.

What goes wrong

Matching capacitance alone can conceal a different construction, higher leakage, poorer surge suitability or a different resistance grade. Reversed reel orientation can lead to incorrect placement. Damaged packages, recycled parts and unapproved substitutions can also escape a visual count.

Approve the exact part in the intended circuit and retain a reference sample, datasheet and lot records. Investigate failed electrical samples before releasing the batch to production; a supplier certificate does not replace checking the delivered goods.

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.