For a high voltage C0G MLCC in a silicon carbide power stage built in Malaysia, Walsin Technology (Walsin) lists 889 NP0 part numbers rated 1,000 V or more, from 0805 to 2225, and 36 of them sit at 1,000 pF. Venatech, Walsin’s authorised distributor in Hong Kong, holds 31 of the 889 on its shelf and crosses the rest free.
Venatech Limited, an authorised Walsin distributor in Hong Kong, wrote this for a power electronics engineer in Kulim or elsewhere in northern Malaysia who is placing snubber, resonant or gate-loop capacitors around fast-switching SiC MOSFETs, where the capacitor must hold its value at high voltage and high dv/dt. We parsed Walsin’s MLCC export, 00_ALL_MLCC_parts_combined.xlsx (24,026 rows, 23,601 distinct part numbers), and our stock list as at 23 September 2026. We left out the X1/Y2 safety series, whose voltage field describes a different rating, and re-measured every count on 11 November 2026.
What did MIDA report about silicon carbide in Kulim?
A 200 mm SiC power fab. According to the Malaysian Investment Development Authority (MIDA) on 8 August 2024, Infineon Technologies opened the first phase of its Kulim 3 fab expansion in Kulim High Tech Park, Kedah, for silicon carbide power semiconductors, with 2 billion euros in phase 1 and a further 5 billion euros (RM24.5 billion) planned for phase 2.
The article is more than two years old and gives no completion date for phase 2, so treat it as background, not news. Those are MIDA’s figures, not ours. The connection we draw is ours: SiC switching skills and suppliers are concentrating in northern Malaysia, and every SiC power stage designed or tested near them needs capacitors that tolerate fast, high-voltage edges. We have no relationship with Infineon and say nothing about what it buys.
Why do SiC power stages need high voltage C0G MLCC?
Because SiC switches fast at high voltage. A SiC MOSFET can switch hundreds of volts in a few tens of nanoseconds, so the snubber capacitor across it sees the full bus voltage and large ripple current, and a C0G (NP0) dielectric keeps its capacitance with voltage and temperature where an X7R part loses a large share.
That stability matters twice. A snubber is tuned to damp the ringing between the switch’s output capacitance and the loop inductance, so a capacitor that drops value under DC bias detunes it. And C0G has low loss, so it heats less at high frequency. The penalty is capacitance: C0G reaches lower values than X7R in the same case, which is why snubber values are usually hundreds of picofarads to a few nanofarads. Our guide to middle and high voltage MLCC, 200 V to 4 kV covers the Walsin series.
How many Walsin NP0 MLCC are rated 1,000 V or more?
- We counted 889 distinct Walsin NP0 part numbers rated 1,000 V or more outside the safety series: 650 Middle to High Voltage, 105 big-size, 100 SH soft termination, 15 RF, 11 MT automotive (AEC-Q200), 3 MG, 3 ST and 2 SG.
They run from 0805 to 2225, with 282 in 1206, 155 in 1808 and 152 in 1812, and voltage ratings from 1,000 V (429 parts) through 1,250 V, 1,300 V, 1,500 V, 2,000 V (230), 2,500 V and 3,000 V (182) to 4,000 V (22). For a Kulim power team the useful point is choice: the same snubber value can usually be placed at more than one voltage and in a soft-termination or automotive version. The Walsin MLCC range lists the series.
Which Walsin 1,000 pF C0G parts cross a 1 kV snubber brief?
Ten match a J-tolerance brief. We filtered the NP0 rows at 1,000 V or more to 1,000 pF and found 36 part numbers; 10 are plus or minus 5 percent in 1206 to 1812, the brief we set for a SiC half-bridge snubber, and 3 of those 10 are soft termination.
Your incumbent goes in the last column.
| Walsin part | Series | Size | Rated voltage | Thickness (mm) | Match / mismatch with the brief | Your incumbent |
|---|---|---|---|---|---|---|
1206N102J102 |
Middle to High Voltage | 1206 | 1,000 V | 1.60 | Match, smallest body | |
1210N102J102 |
Middle to High Voltage | 1210 | 1,000 V | 1.60 | Match | |
1808N102J102 |
Middle to High Voltage | 1808 | 1,000 V | 2.00 | Match | |
1808N102J202 |
Middle to High Voltage | 1808 | 2,000 V | 1.60 | Match, double the voltage | |
1812N102J102 |
Middle to High Voltage | 1812 | 1,000 V | 2.00 | Match | |
1812N102J202 |
Middle to High Voltage | 1812 | 2,000 V | 2.00 | Match | |
1812N102J302 |
Middle to High Voltage | 1812 | 3,000 V | 2.50 | Match, highest voltage | |
SH31N102J102 |
SH soft termination | 1206 | 1,000 V | 1.60 | Match, adds soft termination | |
SH32N102J102 |
SH soft termination | 1210 | 1,000 V | 1.60 | Match, adds soft termination | |
SH43N102J102 |
SH soft termination | 1812 | 1,000 V | 2.00 | Match, adds soft termination | |
1206N102K102 |
Middle to High Voltage | 1206 | 1,000 V | 1.60 | Mismatch: 10 percent tolerance | |
1825N102J202 |
Big sizes | 1825 | 2,000 V | 2.00 | Mismatch: body larger than 1812 |
Tighter F (1 percent) and G (2 percent) versions also exist at this value. A match is a match on export fields. Take ripple current, dissipation and the voltage derating at your switching frequency from Walsin’s own datasheet, which we hold as 04_Middle_and_High_Voltage.pdf and 19_Soft_Term_SH.pdf.
What does Venatech hold in Hong Kong in high voltage C0G?
31 lines. Of the 1,125 distinct part numbers on our stock list as at 23 September 2026, 31 are Walsin NP0 MLCC rated 1,000 V or more, including 1812N122J102 at 1,200 pF and 1,000 V, 1808N471J102 at 470 pF and 1,000 V, and SH31N221J102, a soft-termination 220 pF at 1,000 V.
For a SiC prototype in Kulim, a nearby value from the shelf can get a snubber tuned while the production value is quoted. For the 1,000 pF parts in the table, request a quote and we source them through our authorised Walsin channel. The ready-stock list is a dated snapshot, never live-synced; we give no lead time or stock promise.
Why choose soft termination for a SiC snubber?
Because big ceramic parts crack under board flex. Of the 889 NP0 parts at 1,000 V or more that we counted, 102 are soft termination (100 SH and 2 SG), and 3 of them are in our 1,000 pF table at 1206, 1210 and 1812.
Snubber capacitors in 1808 and 1812 sit on heavy power boards that flex during depanelling, screw-down and thermal cycling, and a flex crack in a capacitor across the bus is a short. A soft, conductive polymer layer in the termination absorbs some of that strain. Our explainer on flex cracking and why soft termination exists shows where the risk sits on a board.
How Venatech helps: what should a Kulim power electronics team send us?
Your snubber and resonant capacitor lines. Venatech is Walsin’s authorised distributor in Hong Kong, and VenaMatch decodes 18 manufacturers’ part numbers and crosses 800,000+ parts to Walsin, with every field marked match or mismatch.
Paste up to 500 part numbers into the free cross-reference tool and filter for soft termination where you need it, or upload a BOM and request a quote. Worked example from our own export: a 1,000 pF, 1 kV or more, 5 percent, 1206 to 1812 brief returned 10 matches in 2 series. We hold no office in Malaysia and give no legal or customs advice. Walsin is the line we are authorised for; Stackpole and Viking are lines we supply. Small lots and fast quotes from Hong Kong.
The short version
For SiC power electronics in Kulim, Malaysia, Walsin covers the high voltage C0G MLCC position with 889 NP0 parts at 1,000 V or more, 36 at 1,000 pF, 10 inside a 1 kV snubber brief. Venatech, Walsin’s authorised distributor in Hong Kong, holds 31 of the 889 on its 23 September 2026 snapshot and crosses the rest.
Send us your snubber capacitor lines with value, voltage and size, and we will return the Walsin crosses with every difference stated. What bus voltage does your SiC stage switch?
Related reading
- Middle and high voltage MLCC, 200 V to 4 kV
- Flex cracking and why soft termination exists
- Soft termination MLCC: SH, SG, ST and VT
- Free cross-reference tool and ready-stock snapshot
Last reviewed 11 Nov 2026.
Sources
Fetched 11 November 2026.
- Malaysian Investment Development Authority (MIDA), “Kulim will be home to world’s biggest 200mm SiC power fab plant”, 8 August 2024: https://www.mida.gov.my/mida-news/kulim-will-be-home-to-worlds-biggest-200mm-sic-power-fab-plant/
Frequently asked questions
What is being built in Kulim, Malaysia, for silicon carbide?
MIDA reported on 8 August 2024 that Infineon opened the first phase of its Kulim 3 fab expansion for 200 mm silicon carbide power semiconductors, with 2 billion euros in phase 1 and a further 5 billion euros planned for phase 2. The article is background, not recent news.
How many Walsin C0G MLCC are rated 1,000 V or more?
We counted 889 distinct Walsin NP0 part numbers rated 1,000 V or more outside the X1/Y2 safety series, from 0805 to 2225 and up to 4,000 V.
Which Walsin 1,000 pF 1 kV C0G capacitors suit a SiC snubber?
At plus or minus 5 percent in 1206 to 1812, ten match on export fields, including 1206N102J102, 1812N102J102, 1812N102J302 and the soft-termination SH31N102J102. Confirm ripple current and derating in Walsin’s datasheet.
Why use C0G rather than X7R for a snubber?
C0G (NP0) holds its capacitance under DC bias and temperature and has low loss, so a tuned snubber stays tuned. X7R gives more capacitance per case but loses a large share at high voltage.
Does Venatech stock high voltage MLCC in Hong Kong?
Yes. As at 23 September 2026, 31 of the 1,125 part numbers on our snapshot are Walsin NP0 MLCC rated 1,000 V or more, such as 1812N122J102. For other lines, request a quote and we source them through our authorised Walsin channel.
Is Venatech an authorised Walsin distributor?
Yes. Venatech Limited is Walsin’s authorised distributor in Hong Kong and serves Malaysia from Hong Kong.