For an anti-sulfur resistor in data centre power hardware for Thailand, Walsin Technology (Walsin) lists 56,227 anti-sulfuration part numbers in nine series, and a single 10 kilohm 0603 brief at 1 percent or better returns 8 of them. Venatech, Walsin’s authorised distributor in Hong Kong, crosses your standard resistors to them free.
Venatech Limited, an authorised Walsin distributor in Hong Kong, wrote this for an engineer in Bangkok designing or maintaining power supplies, power distribution units, battery monitoring or environmental sensing boards for data centres, where a resistor has to survive years in conditioned but not always clean air. We parsed the 137 Walsin chip resistor export files and the 20 thin film files in our Walsin data folder, kept every series whose name carries anti-sulfuration (Anti_Sulfuration_Thin_Film_Chip_Resistor_SF_Series_2.xlsx alone holds 14,810 rows, and the arrays sit in Thick_Film_Chip_Resistor_Array_Anti_Sulfuration__1of1.xlsx), and checked our stock list as at 23 September 2026. We re-measured every count on 11 November 2026.
What did Thailand’s BOI approve for data centres in Bangkok?
A 25 MW Bangkok project among seven. According to Thairath English on 15 January 2026, Thailand’s Board of Investment approved seven data centre projects worth more than 96 billion baht, including Stellar DC’s 8.05 billion baht, 25 MW IT-load project in Bangkok, developed by the STECON Group with SC Zeus Data Centers of Singapore.
The same report lists True Internet Data Center’s three projects worth 45.304 billion baht in Chonburi and Samut Prakan with a combined 223 MW of IT load, and says the BOI received 36 data centre applications worth 728 billion baht in 2025. Those are Thairath’s figures, not ours, and we wrote about the BOI round from a capacitor angle on an earlier date. This post looks at the resistors in the power and monitoring hardware those halls will need. We have no relationship with Stellar DC or True IDC and say nothing about what either buys.
Why does data centre hardware use anti-sulfur resistors?
Because silver and sulfur do not mix. A standard thick film chip resistor uses silver in its inner electrode, and sulfur compounds in the air can slowly convert exposed silver to silver sulfide, raising resistance until the part opens; anti-sulfuration designs protect or replace that silver, and Walsin offers them in 9 series.
Data halls filter their air, but power rooms, battery rooms and edge sites near traffic or industry can still carry sulfur-bearing gases, and a failed feedback or sense resistor in a power shelf takes a rack offline. That is why many power-supply and telecom specifications ask for anti-sulfuration parts in the long-life positions. It is an engineering judgement for your site, not a rule; our guide to anti-sulfuration resistors, SF thin film and SA arrays explains the constructions.
How many Walsin anti-sulfuration resistors are there?
56,227 part numbers. We counted 56,227 distinct Walsin part numbers in series named anti-sulfuration: 15,080 SF thin film, 12,871 high grade thick film (automotive), 10,659 general purpose thick film (automotive), 9,135 high power, 5,710 high precision and 2,772 in four array types.
They run from 0201 to 2512 in the export files we read, such as Thick_Film_General_Purpose_1_1_10W.xlsx and Thick_Film_High_Power_Chip_Resistor_1_1_8W.xlsx, with 7,926 in 0603 and 7,095 in 0402, the two sizes most power-shelf control boards use. For a Bangkok engineer the useful conclusion is coverage: almost any standard thick film position on a long-life board has an anti-sulfuration Walsin option at the same footprint. The chip resistor range lists the families.
Which Walsin 10 kilohm 0603 anti-sulfur resistors cross a 1 percent brief?
Eight single resistors. We filtered the anti-sulfuration rows to 10 kilohm in 0603 and found 8 single resistors at 1 percent or better, from 1/10 W to 1/8 W, plus array parts that need a different footprint.
Your incumbent goes in the last column.
| Walsin part | Family as the export names it | Tolerance | Rated power | TCR (ppm/K) | Match / mismatch with the brief | Your incumbent |
|---|---|---|---|---|---|---|
SR06X1002FTL |
High Grade Anti-Sulfuration (Automotive) | 1% | 1/10 W | 100 | Match | |
SR06X1002FTLW |
High Grade Anti-Sulfuration (Automotive) | 1% | 1/10 W | 100 | Match, packing variant | |
WR06X1002FTLV |
General Purpose Anti-Sulfuration (Automotive) | 1% | 1/10 W | 100 | Match | |
WR06X1002FTLZ |
General Purpose Anti-Sulfuration (Automotive) | 1% | 1/10 W | 100 | Match | |
WF06P1002FTLV |
High Power (Anti-Sulfuration) | 1% | 1/8 W | 100 | Match, higher power | |
SF06P1002FTP |
High Power (Anti-Sulfuration) | 1% | 1/8 W | 100 | Match, higher power | |
SF06H1002DTL |
High Precision Anti-Sulfuration | 0.5% | 1/10 W | 100 | Match, tighter tolerance | |
SF06H1002BTL |
High Precision Anti-Sulfuration | 0.1% | 1/10 W | 100 | Match, tightest tolerance | |
SA06X1002FTL |
Anti-Sulfuration Array 0603×4 | 1% | 1/10 W | 200 | Mismatch: four-element array, different footprint |
A match is a match on export fields only. Ask us for Walsin’s datasheet and approval sheet for the exact part number, and confirm the test standard and duration before you write a part into a specification. We hold Walsin’s WR general purpose datasheet, Walsin_WR_General_Purpose_Chip_Resistor.pdf, and request the anti-sulfuration datasheets from Walsin on your behalf.
Should a Bangkok team swap every resistor to anti-sulfur?
No, only the positions that matter. All 8 single resistors in our 10 kilohm table keep the 0603 footprint and at least the 1/10 W of a standard 0603 part, so the decision is about which positions need long-life protection, not about board space.
Start with feedback dividers in power supplies, current and voltage sensing in power distribution units, and anything near batteries or outside the filtered hall. Leave short-life or easily replaced boards on general purpose parts if your customer agrees. Whichever you choose, record the grade in the BOM, because an anti-sulfuration part and a general purpose part can share a value and a footprint and still be different parts. Our page on cross-referencing chip resistors to Walsin shows how we state every difference.
How do you get Walsin anti-sulfur resistors through Venatech?
Request a quote. Every one of the 56,227 Walsin anti-sulfuration part numbers we counted can be quoted through Venatech; for this line, request a quote and we source it through our authorised Walsin channel rather than from our 23 September 2026 Hong Kong snapshot of 1,125 part numbers.
The ready-stock list shows what we hold in Hong Kong as a dated snapshot, never live-synced. We give no lead time or stock promise, hold no office in Thailand and give no legal or customs advice; confirm BOI or import conditions with your compliance team.
How Venatech helps: what can a Bangkok data centre hardware team send us?
A list of standard resistors to convert. 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, or upload a BOM and request a quote; tell us which positions need anti-sulfuration and we return candidates for those lines. Worked example from our own export: a 10 kilohm, 0603, 1 percent or better anti-sulfur brief returned 8 single resistors in 4 families. 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 data centre power hardware in Bangkok, Thailand, Walsin covers the anti-sulfur resistor position at scale: 56,227 anti-sulfuration part numbers, and 8 single resistors at 10 kilohm in 0603 alone. Venatech, Walsin’s authorised distributor in Hong Kong, crosses your standard parts and quotes them through its authorised channel.
Send us the long-life resistor positions from your BOM, and we will return the Walsin anti-sulfuration crosses with every difference stated. Which boards in your rack sit outside the filtered hall?
Related reading
- Anti-sulfuration resistors: SF thin film and SA arrays
- Cross-referencing chip resistors to Walsin
- Thin film against thick film chip resistors
- Free cross-reference tool and ready-stock snapshot
Last reviewed 11 Nov 2026.
Sources
Fetched 11 November 2026.
- Thairath English, BOI approves seven data centre projects worth over 96 billion baht, 15 January 2026: https://en.thairath.co.th/news/governmentpolicy/2908054
Frequently asked questions
What data centre projects did Thailand’s BOI approve?
Thairath English reported on 15 January 2026 that the BOI approved seven projects worth more than 96 billion baht, including Stellar DC’s 25 MW Bangkok project and True Internet Data Center’s three projects totalling 223 MW in Chonburi and Samut Prakan. These are the paper’s figures.
How many Walsin anti-sulfur resistors are there?
We counted 56,227 distinct part numbers in Walsin series named anti-sulfuration, across thin film, thick film general purpose, high grade, high power, high precision and array families, from 0201 to 2512.
Which Walsin 10 kilohm 0603 anti-sulfur resistors are available?
Eight single resistors at 1 percent or better: SR06X1002FTL, SR06X1002FTLW, WR06X1002FTLV, WR06X1002FTLZ, WF06P1002FTLV, SF06P1002FTP, SF06H1002DTL and SF06H1002BTL. Confirm the sulfur test standard with Walsin before you specify one.
Why do resistors fail from sulfur?
Silver in a standard thick film electrode can react with sulfur compounds in the air to form silver sulfide, which raises resistance and can open the part over time. Anti-sulfuration designs protect or replace that silver.
Does Venatech stock anti-sulfur resistors in Hong Kong?
Anti-sulfuration resistors are quoted to order: request a quote and we source them through our authorised Walsin channel. Our Hong Kong snapshot is dated 23 September 2026 and is not live-synced.
Is Venatech an authorised Walsin distributor?
Yes. Venatech Limited is Walsin’s authorised distributor in Hong Kong and serves Thailand from Hong Kong.