If a Dutch inverter design needs an anti-sulfur current-sense resistor, the gap is wide. Stackpole’s CSRT-AS is a sulfur-resistant metal film part starting near 0.01 ohm, while Walsin’s anti-sulfuration series start at 1.00 ohm and none of Walsin’s 11,616 current-sense part numbers is in one.
Venatech Limited, an authorised Walsin distributor in Hong Kong, wrote this for a design or sourcing engineer at a Dutch inverter, storage or power electronics maker who is weighing a sulfur-resistant sense resistor. Walsin Technology (Walsin) is the only line we are authorised for; Stackpole Electronics (SEI) is a line we supply. The Walsin side is our own chip resistor export, 234,815 rows and 234,401 distinct part numbers, re-measured on 10 November 2026. The Stackpole side is its CSRT-AS datasheet, fetched the same day.
What did the Dutch solar market install in 2025, and why does it matter for a component buyer?
It installed less than the year before, but still a great deal. According to TaiyangNews on 10 September 2026, citing the Netherlands Enterprise Agency (RVO), the Netherlands added 1.4 GW of solar in 2025, down from 3.3 GW in 2024, taking cumulative capacity to 29.4 GW.
We read that report on 10 November 2026; the figures are the agency’s and the publication’s, not ours. It also names the reasons for the slowdown as grid congestion, the end of net metering on 1 January 2027, and 581 hours of negative electricity prices in 2025. For a component buyer the point is simple: a 29.4 GW installed base is a long tail of inverters and storage converters to build and maintain, and every one has current sensing. We say nothing about what any Dutch maker buys.
What does Stackpole’s CSRT-AS datasheet state?
A sulfur-resistant, AEC-Q200 qualified metal film sense resistor. Stackpole’s CSRT-AS datasheet, dated 15 February 2024 and read on 10 November 2026, lists sizes from 0402 to 2512 plus 0612, 1020 and 1225, powers from 0.25 W at 0402 to 2 W at 2512 at 70 degrees Celsius, tolerances of 0.5, 1 and 5 percent, and TCR of plus or minus 50 or 100 ppm.
The datasheet gives a resistance range of roughly 0.01 to 10 ohm depending on size and tolerance. Its sulfur test is 750 hours at 105 degrees Celsius with no power, with a change limit of 2 percent plus 0.001 ohm. It lists RoHS, REACH, lead-free and halogen-free compliance and states AEC-Q200 qualification. Part numbers end in the suffix -AS.
Does Walsin have an anti-sulfur current-sense resistor?
Not in the export we hold. We checked all 10 current-sense series in the Walsin export, 11,616 distinct part numbers, and 0 sit in a series named anti-sulfuration; Walsin’s 8 anti-sulfuration series hold 41,147 part numbers, and the lowest non-zero value in them is 1.00 ohm.
We then asked how many anti-sulfuration part numbers fall between 0.01 and 1 ohm, the part of the CSRT-AS range where a sense resistor normally sits: none, excluding the 29 zero-ohm jumpers. Between 1 and 10 ohm there are 5,050 non-array part numbers, 4,140 of them at plus or minus 1 percent, with 5 at 0.1 percent and 5 at 0.5 percent. The overlap with CSRT-AS is therefore the top decade of its range only. We have not seen this counted anywhere.
How do the nearest Walsin parts compare with CSRT-AS, field by field?
There are two candidate routes and each fails a field. Route one is Walsin’s anti-sulfuration series at 1.00 ohm, which matches the sulfur construction by name but rates 1/10 W at 0603 and 1 W at 2512; route two is Walsin’s metal plate series at 0.010 ohm, which matches the power at 1206 and 2512 but is not an anti-sulfuration series.
The last column is for your incumbent.
| Size | Stackpole CSRT-AS power (70 C) | Walsin anti-sulfur route | Walsin metal plate route | Match / mismatch | Your incumbent |
|---|---|---|---|---|---|
| 0603 | 0.4 W | SR06W1R00FTL: 1.00 ohm, 1/10 W, TCR -200 to +400 |
WW06RR010FTL: 0.010 ohm, 1/3 W, TCR 70 ppm or better |
Mismatch on both routes: the anti-sulfur part is a quarter of 0.4 W with a looser TCR and a 1 ohm floor; the metal plate part is 1/3 W and not anti-sulfur | |
| 1206 | 1 W | SR12W1R00FTL: 1.00 ohm, 1/4 W, TCR -200 to +400 |
WW12RR010FTL: 0.010 ohm, 1 W, TCR 70 ppm or better |
Match on power and TCR for the metal plate part; mismatch on anti-sulfur status | |
| 2512 | 2 W | SR25W1R00FTL: 1.00 ohm, 1 W, TCR 200 ppm or better |
WW25NR010FTL: 0.010 ohm, 2 W, TCR 50 ppm or better |
Match on power and TCR for the metal plate part; mismatch on anti-sulfur status, and the anti-sulfur part is 1 W against 2 W |
TCR in the Walsin export is quoted as a ceiling or a band, not as a datasheet curve. Read the datasheet for the exact part number before any comparison. For the method behind this table see our post on low-ohm current sense: thick film or metal and the note on what AEC-Q200 actually certifies.
What does the Hong Kong shelf hold in low-ohm resistors?
Three lines, none anti-sulfur. We read the stock list as at 23 September 2026: of its 254 chip resistor lines, 3 are current-sense lines, WW08WR270FTL, WW08WR390FTL and WW08WR470FTL, all 0805 at 1/4 W and 0.27 to 0.47 ohm, and 0 are in an anti-sulfuration series.
The ready stock list is a dated snapshot, never live-synced. Ask through the site for current availability.
How can Venatech help a Dutch inverter or power electronics team?
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. Paste up to 500 part numbers, or an Excel or CSV file, and each Walsin candidate returns with every field marked match or mismatch. Upload a BOM for a full review, and see the chip resistor range.
Worked example from our own export: a 0.010 ohm anti-sulfur sense resistor returned zero Walsin part numbers, and the nearest are a non-sulfur metal plate part at the right value or an anti-sulfuration part at 1 ohm. We would rather say that than show a list that fails. We hold no office, entity or stock in the Netherlands; we serve from Hong Kong in small lots, and you request a quote through the site. We hold no ISO 9001 or IATF 16949 certificate and give no legal, customs or conformity advice. Qualification stays with you.
The short version
- Stackpole CSRT-AS is a sulfur-resistant sense resistor from about 0.01 ohm, AEC-Q200 qualified, per its datasheet.
- Walsin has 0 of 11,616 current-sense part numbers in an anti-sulfuration series; its anti-sulfur parts start at 1.00 ohm.
- The two Walsin routes each fail one field; neither is a drop-in match.
- The Dutch market figures belong to RVO and TaiyangNews.
Paste your sense-resistor list into the free cross-reference tool and read each field as match or mismatch. Qualification stays with you.
Frequently asked questions
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How much solar did the Netherlands install in 2025?
1.4 GW, down from 3.3 GW in 2024, with cumulative capacity of 29.4 GW, according to TaiyangNews on 10 September 2026 citing RVO. These are their figures, not ours.
What does Stackpole CSRT-AS offer?
An anti-sulfur metal film sense resistor in sizes 0402 to 2512 plus three larger bodies, 0.5, 1 and 5 percent tolerance, TCR of 50 or 100 ppm and AEC-Q200 qualification, per its datasheet read on 10 November 2026.
Does Walsin make an anti-sulfur current-sense resistor?
Not in our export. None of 11,616 current-sense part numbers sits in an anti-sulfuration series, and the lowest non-zero value in those series is 1.00 ohm. Ask Walsin in writing about your exact part number.
Which Walsin part is nearest to a 1206 CSRT-AS?
WW12RR010FTL matches on power (1 W) and TCR (70 ppm or better) at 0.010 ohm but is not an anti-sulfuration series. SR12W1R00FTL is anti-sulfuration but rated 1/4 W. Qualify in your own circuit.
Is Stackpole an authorised Venatech line?
No. Venatech is authorised for Walsin only. Stackpole is a line we supply. We give no price, lead time or stock guarantee, and the ready stock list is a snapshot dated 23 September 2026.
Do you hold stock or an office in the Netherlands?
No. We hold no office, entity or stock in the Netherlands; our locations are Hong Kong, Shenzhen, Singapore and Jiangmen. We give no legal, customs or conformity advice; confirm with your compliance team.
Related reading
- Low-ohm current sense: thick film or metal
- What AEC-Q200 actually certifies
- Cross-referencing chip resistors to Walsin
- Free cross-reference tool and ready stock
Last reviewed 10 Nov 2026. Sources: TaiyangNews, 10 September 2026 (taiyangnews.info, fetched 10 Nov 2026); Stackpole Electronics CSRT-AS datasheet (seielect.com, fetched 10 Nov 2026); Venatech Walsin chip resistor export and stock list as at 23 September 2026, re-measured 10 Nov 2026.