Solar inverter electronics for Pakistan often need a 1 kV capacitor on the DC side, and few are on a shelf. We parsed the Walsin Technology (Walsin) MLCC export: 233 distinct X7R part numbers are rated 1000 Vdc in the Middle to High Voltage series. Our Hong Kong list holds 19 of them, and none above 15 nF.
Venatech Limited, an authorised Walsin distributor in Hong Kong, holds the Walsin MLCC export (00_ALL_MLCC_parts_combined.xlsx) of 24,026 rows (23,601 distinct part numbers) and a stock list dated 23 September 2026. This post is for a design or sourcing engineer at a Pakistani inverter assembler or solar integrator who needs a high-voltage ceramic and has a small lot to find. Every part number is real, every count is ours, and every news statement names its source and the day we fetched it, 23 October 2026.
What changed for Pakistan’s solar market and inverter costs in 2026?
A tariff shift and a tax debate, both unsettled in the sources we found. pv magazine reported on 11 May 2026 that Pakistan’s regulator approved a move from net metering to net billing in February 2026, with a retroactive rate cut that drew an immediate public outcry, and on 10 June 2026 that the 2026/27 budget was considering raising sales tax on solar modules from 10 percent to 18 percent while the solar association asked for sales tax and import duty on inverters to be removed.
The first report adds that roughly 16 GW of solar imports from China entered Pakistan in 2024, and attributes the policy trouble to high electricity tariffs and a shrinking base of paying customers. On 11 June 2026 the Pakistan Observer reported that the module tax rise had reportedly been dropped after an intervention, and said the outcome was not yet final. A KPMG note says the Finance Act 2026 was passed by the National Assembly on 26 June 2026, received assent on 27 June and takes effect on 1 July 2026; the page we fetched gives no solar detail. We could not confirm from these sources what became of the duty on inverters.
Our view, labelled as ours: with net billing paying less for exports, a buyer values self-consumption and storage, and the DC-side parts of an inverter matter more than they did. We have no relationship with any Pakistani installer or distributor.
How many Walsin 1 kV X7R parts are there, and which cross a 10 nF bus or snubber brief?
Two hundred and thirty-three in the series that matters. We parsed the Middle to High Voltage series (200 V to 4 kV): 233 distinct X7R part numbers are rated 1000 Vdc (258 rows, because 25 rows repeat a part number), spread over five sizes (70 at 1206, 46 at 1812, 43 at 1210, 42 at 1808, 32 at 0805), and the largest value is 100 nF at 1812. We have not seen this counted anywhere.
Take a brief of X7R, 1000 Vdc, 10 nF, plus or minus 10 percent, 1206. Our posts on MLCC DC bias and voltage derating and on NP0, X7R and X5R dielectrics explain why an X7R part at 1 kV delivers less than its nominal capacitance, and why a nominal 10 nF is a starting point, not a result.
| Walsin part | Size, capacitance, tolerance, voltage | On shelf 23 Sep 2026 | Match / mismatch with the brief | Your incumbent |
|---|---|---|---|---|
1206B103K102 |
1206, 10 nF, plus or minus 10%, 1000 Vdc | Yes | Match on size, dielectric, value, tolerance, voltage | |
1206B103J102 |
1206, 10 nF, plus or minus 5%, 1000 Vdc | No | Mismatch: tighter tolerance | |
1206B103M102 |
1206, 10 nF, plus or minus 20%, 1000 Vdc | No | Mismatch: wider tolerance | |
1210B103K102 |
1210, 10 nF, plus or minus 10%, 1000 Vdc | No | Mismatch: 1210 body, larger than 1206 | |
0805B103K102 |
0805, 10 nF, plus or minus 10%, 1000 Vdc | No | Mismatch: 0805 body, smaller than 1206 | |
1210B153K102 |
1210, 15 nF, plus or minus 10%, 1000 Vdc | Yes | Mismatch: 15 nF, 1210 body |
Confirm against both datasheets and qualify in your own circuit. We hold the Middle and High Voltage approval sheet, and the export lists only a rated voltage, not a working-voltage derating, so read the sheet for the part you buy.
What does a Hong Kong shelf hold at 1 kV?
Nineteen of the 233, topping out at 15 nF. Our stock list as at 23 September 2026 holds 1,125 distinct codes, 864 of them MLCC; 19 are Middle to High Voltage X7R parts at 1000 Vdc, 8.2 percent of the 233, and the largest value on the list is 15 nF in 1210B153K102, against 47 nF at 1210 and 100 nF at 1812 in the export.
So a 22 nF, 47 nF or 100 nF requirement at 1 kV is a quote, not a shelf pick. The ready stock list is a dated snapshot and is never live-synced; a quote is requested through the site. Our post on Walsin passive components in Hong Kong stock explains how to read the list, and the MLCC range lists the families. We offer lot and date-code traceability and a certificate of conformity per shipment on request.
What will we not tell you about inverter design and import rules?
Anything about whether a design is safe, certified or importable. We make no claim that a Walsin capacitor suits a photovoltaic inverter, the word solar appears in none of the 28 Walsin datasheets we hold, and we hold no ISO 9001 certificate.
We hold no office, entity or stock in Pakistan; our locations are Hong Kong, Shenzhen, Singapore and Jiangmen, with Chengdu in preparation. We give no legal, customs, tax or conformity advice. Confirm with your compliance team. Qualification stays with you.
How Venatech helps: what can you do with a high-voltage line today?
Paste your incumbent into the free cross-reference tool, which decodes 18 manufacturers’ part numbers across 800,000+ crossable parts, and read the Walsin candidates with each field marked match or mismatch. Load the inverter bill of materials into the BOM check, up to 500 part numbers or an Excel or CSV file. The ready-stock list is a Hong Kong snapshot dated 23 September 2026.
Worked example from our own export: the 10 nF, 1000 Vdc, X7R filter above returned 5 sizes in the series, 15 part numbers across tolerances, and our shelf holds 1 of the 10 nF ones. Walsin is the only line we are authorised for; Stackpole and Viking are lines we supply. We serve from Hong Kong in small lots, and a quote is requested through the site.
The short version
For a Pakistani inverter assembler, the 1 kV line is a small-lot problem: 233 candidates, 19 on our list, and a shelf ceiling of 15 nF against 100 nF in the export.
Send us the 1 kV lines of one inverter BOM and we will return the Walsin candidates with the differences stated. If your net-billing economics change your design every quarter, how long can you wait for a high-voltage part?
Sources
Fetched 23 October 2026.
- pv magazine, “Geopolitical shield”, 11 May 2026 (partly paywalled): http://www.pv-magazine.com/2026/05/11/geopolitical-shield/
- pv magazine, “Pakistan targets solar sector with higher sales tax on modules, increased duties on batteries and inverters”, 10 June 2026: https://www.pv-magazine.com/2026/06/10/pakistan-targets-solar-sector-with-higher-sales-tax-on-modules-increased-duties-on-batteries-and-inverters/
- Pakistan Observer, “Budget 2026-27: solar panel prices may not go up as IMF eases condition”, 11 June 2026: https://pakobserver.net/budget-2026-27-solar-panel-prices-may-not-go-up-as-imf-eases-condition/
- KPMG Pakistan, “A brief on Finance Act 2026”, July 2026: https://kpmg.com/pk/en/insights/2026/07/a-brief-on-finance-act-2026.html
Frequently asked questions
What did Pakistan’s regulator approve for rooftop solar in February 2026?
pv magazine reported on 11 May 2026 that the regulator approved a move from net metering to net billing, and a retroactive rate cut for net-metered systems, in February 2026. The cut drew public outcry and political intervention. These are the trade press accounts, not ours.
Did Pakistan raise sales tax on solar inverters in the 2026/27 budget?
We could not confirm it. pv magazine reported on 10 June 2026 that module sales tax might rise from 10 to 18 percent and that the solar association wanted inverter duties removed. The Finance Act 2026 took effect on 1 July 2026. Confirm the inverter treatment with your tax team.
How many Walsin X7R parts are rated 1000 Vdc in the Middle to High Voltage series?
We counted 233 distinct part numbers from 258 rows. By size: 70 at 1206, 46 at 1812, 43 at 1210, 42 at 1808 and 32 at 0805. The largest value is 100 nF, in 1812. Our list as at 23 September 2026 holds 19 of the 233.
Which Walsin part crosses an X7R, 1000 Vdc, 10 nF, plus or minus 10 percent, 1206 brief?
1206B103K102 matches on size, dielectric, value, tolerance and voltage, and is on our shelf as at 23 September 2026. Its 1210 and 0805 neighbours differ in body size. Confirm against both datasheets and qualify in your own circuit.
Is there a 47 nF or 100 nF 1 kV part on the Hong Kong shelf?
No. The largest 1000 Vdc X7R value on our list dated 23 September 2026 is 15 nF, in 1210B153K102. The export reaches 47 nF at 1210 and 100 nF at 1812. Those are quote items through the site. The list is a dated snapshot, never live-synced.
Can Venatech confirm inverter suitability or hold stock in Pakistan?
No. We make no claim that any Walsin capacitor suits a photovoltaic inverter, and the word solar appears in none of the 28 datasheets we hold. We hold no office, entity or stock in Pakistan and give no legal, customs or tax advice. Confirm with your compliance team.