Data centre power electronics for Finland often start from a 48 V bus, and the Walsin Technology (Walsin) X7R line of 1 microfarad or more at 100 V begins at 1206 with 14 part numbers, against 25 at 1210, 2 on our shelf. GTAI reported on 28 August 2026 about 370 MW installed at the end of 2025.
Venatech Limited, an authorised Walsin distributor in Hong Kong, wrote this for a design or sourcing engineer at a Finnish maker or assembler of data centre power shelves, converters or heat-recovery controls. The market statement names its source and the day we fetched it, 10 November 2026. The counts come from the Walsin MLCC export (24,026 rows, 23,601 distinct part numbers) and our stock list as at 23 September 2026. We do not know your bus voltage; a 100 V rating is the rung we measured, not a recommendation. Every part number is real.
What did GTAI report on Finland’s data centre capacity in August 2026?
It reported a small installed base and a large plan. According to Germany Trade and Invest on 28 August 2026, citing an estimate by the Finnish data-centre association FDCA, Finland had about 370 MW installed at the end of 2025, roughly half at Google’s Hamina site, with about 1,200 MW possible by 2030 on known investment decisions worth about 12 billion euros.
The same article said the grid operator Fingrid restricted new connections above 10 MW for large customers in parts of southern Finland in 2025, and that data centres were affected. These are the sources’ figures, not ours, and a plan is not a build. We have no relationship with any operator named in the article, and we say nothing about what any of them buys.
Which Walsin X7R capacitors of 1 microfarad or more are rated 100 V, and where do they start?
At 1206, with nothing smaller. We filtered the Walsin MLCC export for X7R, 1 microfarad or more, 100 V or more and found 122 distinct part numbers in six case sizes, the smallest being 1206 with 14 and the next 1210 with 25; there are none at 0805, 0603 or 0402.
A designer who needs 100 V at 1 microfarad therefore gives up the small footprint first. The last column is for your incumbent.
| Walsin part | Description | On shelf 23 Sep 2026 | Match / mismatch with a 1 uF, 100 V, 1210 brief | Your incumbent |
|---|---|---|---|---|
1210B105K101 |
General Purpose, X7R, 1210, 1 uF, plus or minus 10 percent, 100 V, 2.00 plus or minus 0.20 mm | Yes | Match on size, dielectric, value, tolerance and voltage | |
1210B225K101 |
General Purpose, X7R, 1210, 2.2 uF, plus or minus 10 percent, 100 V, 2.50 plus or minus 0.50 mm | Yes | Match on size, dielectric, tolerance and voltage; mismatch: value is 2.2 uF and the body is 0.5 mm taller | |
1206B105K101 |
General Purpose, X7R, 1206, 1 uF, plus or minus 10 percent, 100 V, 1.60 mm | No | Match on the electrical fields; mismatch: case is 1206, smaller | |
1206B225K101 |
General Purpose, X7R, 1206, 2.2 uF, plus or minus 10 percent, 100 V | No | Mismatch: case 1206 and value 2.2 uF | |
1210B475K101 |
General Purpose, X7R, 1210, 4.7 uF, plus or minus 10 percent, 100 V | No | Mismatch: value is 4.7 uF | |
SH32B106K101 |
Soft Termination (SH), X7R, 1210, 10 uF, plus or minus 10 percent, 100 V | No | Mismatch: value 10 uF and soft termination |
A match in the table is a match on export fields, no more. Confirm against both datasheets and qualify in your own circuit. Our post on MLCC DC bias and voltage derating explains why the capacitance at your operating voltage is lower than the label.
How much capacitance does each case size reach at 100 V in X7R?
It grows with the case, and the jump from 1206 to 1210 is large. We read the maximum value per case size in the same export: 2.2 microfarad at 1206, 10 microfarad at 1210, 2.2 microfarad at 1812 and 22 microfarad at 2220.
The 1210 ladder holds six values, 1, 1.5, 2.2, 2.5, 4.7 and 10 microfarad, in six series: 11 General Purpose, 7 Soft Termination SH, 3 Automotive ST, 2 Automotive MT, 1 Automotive MG and 1 Low Profile TT. The 1206 ladder holds only 1 and 2.2 microfarad, in four series. A 1812 body offers the same 2.2 microfarad ceiling as the 1206 at a much larger footprint, which is why the 1210 is the practical step. Heights run to 2.50 mm at 1210, so check clearance under a heatsink or a cold plate.
What does the Hong Kong shelf hold at 100 V?
Two part numbers, both at 1210. Our stock list as at 23 September 2026 holds 1210B105K101 and 1210B225K101, and none of the other 120 part numbers in the 100 V or higher X7R range of 1 microfarad or more.
The ready stock list is a dated snapshot, never live-synced, and it counts part numbers, not pieces. Nothing at 1206, 1812 or 2220 is stocked. The MLCC range lists the families; ask for a to-order enquiry through the site if your size is missing.
What will we not tell you about Finnish data centres?
Anything about your converter, your cooling or your bus voltage. We hold 28 Walsin datasheets, 26 of them MLCC, and none names a data centre, so every count here is catalogue coverage, not suitability.
We make no claim that any part suits a 48 V bus or a heat-recovery loop. We hold no ISO 9001 or IATF 16949 certificate and make no qualification claim of our own. We hold no office, entity or stock in Finland; our locations are Hong Kong, Shenzhen, Singapore and Jiangmen, with Chengdu in preparation. We give no legal, customs or tax advice; confirm with your compliance team. Qualification stays with you.
How can Venatech help a Finnish power-electronics buyer?
How Venatech helps starts with a free paste box. The cross-reference tool, VenaMatch, decodes 18 manufacturers’ part numbers and covers 800,000+ crossable parts; it accepts up to 500 part numbers or an Excel or CSV file and marks every field match or mismatch. Load a whole BOM for a check. The ready-stock list is a Hong Kong snapshot dated 23 September 2026.
Worked example from our own export: the 1 microfarad, X7R, 1210, 100 V brief returned 25 part numbers at 1210 in six series, 2 of them on the shelf. Venatech Limited is authorised for Walsin only; Stackpole and Viking are lines we supply. We serve from Hong Kong, welcome small lots, and you request a quote through the site.
The short version
GTAI relayed an association estimate of about 370 MW installed in Finland at the end of 2025. For the power stage, Walsin X7R capacitors of 1 microfarad or more at 100 V start at 1206 with 14 part numbers, reach 25 at 1210 and 22 microfarad only at 2220, and our shelf holds 2, both at 1210.
Send us one 100 V capacitor line from your power-shelf BOM, with the value, case and maximum height you accept, and we will return the Walsin parts with every difference stated. If your incumbent is 1206, have you checked whether the 100 V rung exists in your value?
Sources
Fetched 10 November 2026. – Germany Trade and Invest (GTAI), Finland: data centres and AI factories, 28 August 2026: https://www.gtai.de/de/trade/finnland/branchen/datenzentren-ki-fabriken-2016828 – Walsin MLCC and chip resistor exports and the Venatech ready-stock workbook (.xlsx) as at 23 September 2026, re-measured 10 November 2026 (internal files).
Related reading
- MLCC DC bias and voltage derating
- Soft termination MLCC: SH, SG, ST and VT
- How to cross-reference an MLCC, field by field
- Free cross-reference tool (VenaMatch)
- Ready stock, Hong Kong snapshot dated 23 September 2026
Last reviewed 10 Nov 2026.
Frequently asked questions
What did GTAI report on Finnish data centre capacity?
On 28 August 2026 GTAI relayed an FDCA estimate of about 370 MW installed at the end of 2025 and about 1,200 MW possible by 2030. These are the sources’ figures; check the originals before quoting.
What is the smallest case with a Walsin X7R 1 microfarad capacitor at 100 V? We found 14 distinct part numbers there and none at 0805, 0603 or 0402. At 1210 there are 25, with values from 1 to 10 microfarad in six series. Which 100 V part matches a 1 microfarad, 1210, plus or minus 10 percent brief?
1210B105K101 matches on every export field and is on our shelf, with a 2.00 mm body. Confirm height, bias behaviour and the datasheet, and qualify in your own circuit.
Is a 2.2 microfarad part a drop-in for a 1 microfarad part?
No. 1210B225K101 has a different value and a 2.50 mm body, 0.5 mm taller. It may suit a different design, but it is a different part and qualification stays with you.
Which 100 V X7R parts are on the Hong Kong shelf?
As at 23 September 2026: 1210B105K101 and 1210B225K101. Nothing at 1206, 1812 or 2220 is stocked. The snapshot is dated, not live, so ask us through the site for current availability.
Do you hold stock or an office in Finland?
No. We hold no office, entity or stock in Finland; our locations are Hong Kong, Shenzhen, Singapore and Jiangmen. We hold no ISO 9001 or IATF 16949 certificate and give no legal or customs advice. Confirm with your compliance team.