High Current Power Inductor for AI Servers in China: a 1 µH, 10 A Brief Returns 6 Walsin Parts Rated 11 to 18 A, from Venatech, Walsin’s Authorised Distributor in Hong Kong

For a high current power inductor on a Chinese AI server board, a 1 µH, plus or minus 20 percent, 10 A brief returns 6 Walsin Technology (Walsin) molded parts rated 11.1 to 18 A, with DC resistance from 5.3 to 7.2 mΩ. Venatech Limited, an authorised Walsin distributor in Hong Kong, crosses your line and quotes them.

Venatech Limited, an authorised Walsin distributor in Hong Kong, wrote this for power engineers and buyers in China working on server, data-centre and automotive power stages, where a regulator’s output inductor is one of the larger and more specific parts on the board. We parsed Walsin’s inductor export, Walsin_Inductor_ALL.xlsx (5,411 rows), and our ready-stock list as at 23 September 2026. Every part number below is real and every count is ours, re-measured on 11 November 2026.

What did Sunlord report for the first three quarters of 2026?

Faster growth in the third quarter. A Kaiyuan Securities note carried by Gelonghui on 3 November 2026 put Sunlord Electronics’ revenue for the first three quarters of 2026 at 6.334 billion yuan, up 25.87 percent, and its third-quarter revenue at 2.476 billion yuan, up 36.94 percent year on year.

The note says deliveries of Sunlord’s dual-phase TLVR (trans-inductor voltage regulator) inductors grew strongly in the third quarter, that a four-phase TLVR project is expected to reach mass shipments in the second half of 2027, and that its automotive and energy-storage components revenue rose 40.99 percent to 1.486 billion yuan. Those are the analysts’ figures. Our reading for a Chinese engineer: AI server power stages use more inductors per board, from the TLVR stage on the processor rail to the discrete molded parts on the point-of-load rails around it, and each discrete line deserves a qualified second part on the drawing. We make no statement about any maker’s capacity.

Which Walsin power inductors cross a 1 µH, 10 A point-of-load brief?

Six. We filtered the Walsin AIP and VEFL molded power inductor rows in Walsin_Inductor_ALL.xlsx for 1.0 µH, plus or minus 20 percent, rated current of 10 A or more and a height of 3.0 mm or less: 6 part numbers match, rated 11.1 A to 18 A.

None of these was on our Hong Kong shelf as at 23 September 2026; request a quote and we source them through our authorised Walsin channel. Our inductor range lists every family, and our guide to Walsin power inductors above 1 A explains the series.

Why do six part numbers reduce to three data sets?

Because the series repeat each other. We grouped the 6 matching rows by size, DC resistance and current: they form 3 electrical profiles, 18 A at 5.3 mΩ, 13 A at 6.6 mΩ and 11.1 A at 7.2 mΩ, and the 18 A and 11.1 A profiles each appear under both an AIP and a VEFL part number.

For a buyer in China that is useful: two Walsin part numbers with the same published data give one maker, two catalogue routes. List both on the drawing after qualification and purchasing can follow whichever has stock. The VEFL2C and VEFL5C 7.1 × 6.5 mm rows match each other across all nine values from 1 µH to 22 µH, which we checked row by row.

How far does the Walsin molded power inductor range go in current?

To 30 A. We counted 32 Walsin AIP and VEFL part numbers rated 10 A or more, 20 AIP and 12 VEFL, from AIP0630MB-R15M at 30 A and 1.8 mΩ (0.15 µH) down to the 10 A rows around 0.33 µH to 2.2 µH.

That covers the usual point-of-load values on a 12 V to 1 V or 12 V to 3.3 V buck stage: 0.15 to 0.47 µH for high-current core-adjacent rails, 1 µH to 2.2 µH for 3.3 V and 5 V rails. Above 10 µH the VEFL 7.1 × 6.5 mm family continues to 22 µH at 3.5 A. All values come from the export; the saturation current column is empty for these series, so read it from the Walsin datasheet.

What should a Chinese power engineer check before approving a Walsin cross?

Saturation, heating and footprint. We match inductance, tolerance, rated current, DC resistance and body size from the export, but the export lists no saturation current for the 6 matching rows, and the AIP0630GX body is 0.1 mm longer than the VEFL 7.1 mm rows it shares data with.

Take the saturation curve, the temperature-rise current and the recommended land pattern from Walsin’s datasheet for the exact part, then check ripple at your switching frequency. A match on export fields starts a qualification; it does not finish one. Our note on qualifying a crossed part sets out a test plan. We give no legal, customs or certification advice; confirm with your compliance team.

How does Venatech help a buyer in China second-source power inductors?

How Venatech helps starts with your BOM. Venatech, Walsin’s authorised distributor in Hong Kong, runs VenaMatch, which decodes part numbers from 18 manufacturers and crosses 800,000+ parts to Walsin, with every field marked match or mismatch.

Paste up to 500 lines into the cross-reference tool, load a full BOM, or send an inductor spec through the site and we will run the same filter shown above. The ready-stock list is a Hong Kong snapshot dated 23 September 2026. We serve buyers in China from Hong Kong in small lots with fast quotes, and give no stock or delivery promise. Walsin is the line we are authorised for; Stackpole and Viking are lines we supply.

The short version

Sunlord’s third-quarter revenue rose 36.94 percent on AI inductor demand. For a Chinese AI server board, a 1 µH, 10 A point-of-load inductor crosses to 6 Walsin AIP and VEFL parts at 11.1 to 18 A, in 3 data sets, and Venatech quotes them from Hong Kong.

Send us your power-inductor lines with inductance, current and height, and we will return the Walsin matches with every difference stated.

Related reading

• Walsin power inductors above 1 A
• Chip inductor cross reference: 146 of 5,410 publish saturation current
• Qualifying a crossed part: a test plan for QA
• Free cross-reference tool and ready-stock snapshot

Last reviewed 11 Nov 2026.

Sources

Fetched 11 November 2026.

• Gelonghui (格隆汇), carrying Kaiyuan Securities, “顺络电子(002138)：传统主业筑牢业绩基石 AI电感持续放量驱动成长”, 3 November 2026: https://m.gelonghui.com/news/5343592

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