A high voltage chip resistor for a megawatt truck charger in Belgium has to be chosen on a voltage rating that Walsin Technology (Walsin)’s export does not carry: we counted 20,244 Walsin high voltage chip resistor part numbers, 3,004 in UL-listed series, and not one has a voltage column. None is on our shelf.
Venatech Limited, an authorised Walsin distributor in Hong Kong, wrote this from the Walsin chip resistor exports (234,815 rows, 234,401 distinct part numbers, re-counted by us on 11 November 2026), the 14 Thick_Film_High_Voltage_Chip_Resistor_*.xlsx files among them, and our stock list as at 23 September 2026. It is for a designer of DC bus sensing, insulation monitoring or bleed circuits in high-power chargers built or installed in Belgium. Every part number is real. The news facts name their source and the date we fetched them, 11 November 2026.
What opened at Temse, and why does it matter to charger designers in Belgium?
A truck charging hub with megawatt-class bays. Electric Cars Report wrote on 3 November 2026 that Milence opened its fifth Belgian hub at Temse, between Antwerp and Ghent, with eight bays: four hybrid MCS and CCS chargers of up to 1,500 kW and four CCS chargers of up to 400 kW.
The report places the hub on the North Sea to Mediterranean corridor and ties it to the European MACBETH project, which tests the Megawatt Charging System. Those are the report’s figures, not ours. We have no relationship with Milence or its charger suppliers and say nothing about what they buy. For a Belgian design or service team, the point is the voltage class these sites bring onto boards that were sized for car chargers.
Why does a megawatt charger need high voltage chip resistors?
Because every DC bus has to be measured, monitored and bled down, and each of those circuits puts a string of resistors across the full bus. Our worked example, an assumed 1,000 V bus and not a figure from Milence: four 1 megohm resistors in series carry 0.25 mA and dissipate 0.25 W in total, 62.5 mW each, while each one stands off 250 V.
Dissipation is easy at these values; voltage is the constraint. A general-purpose 1206 can be power-rated for the job and still not be rated for the volts across it, and a single resistor that flashes over takes the measurement with it. That is why the high voltage series exist, and why the working and overload voltages on the datasheet decide how many resistors the string needs. Our post on chip resistor power rating by case size covers the power side.
What does Walsin’s high voltage chip resistor export hold?
Four series across five sizes, every row without a voltage. We parsed the high voltage files and counted 20,244 distinct parts: 10,437 standard, 6,803 automotive, 1,502 UL Safety Certification and 1,502 UL Safety Certification automotive, in 0603, 0805, 1206, 2010 and 2512.
| Size | Distinct high voltage parts | Rated power in export | At 1 megohm or more | At 10 megohm or more | On shelf 23 Sep 2026 |
|---|---|---|---|---|---|
| 0603 | 3,924 | 1/10 W | 946 | 28 | 0 |
| 0805 | 3,966 | 1/8 W | 988 | 70 | 0 |
| 1206 | 4,118 | 1/4 W | 1,060 | 142 | 0 |
| 2010 | 4,118 | 1/2 W | 1,060 | 142 | 0 |
| 2512 | 4,118 | 1 W | 1,060 | 142 | 0 |
The value range runs from 47 ohm to 100 megohm in 1206 and larger; 0603 stops at 22 megohm and 0805 at 51 megohm. The UL series start at 100 kilohm. The export columns are Series, Size, Resistance, Tolerance, TCR, Rated Power, Packaging and Termination: no working voltage, no overload voltage and no UL file number. We checked all 137 chip resistor files and none of them carries a voltage field. We have not seen that gap noted anywhere.
Which Walsin parts answer a 1 megohm, 1 percent, 1206 divider brief, and what differs?
Four Walsin high voltage parts do, one per series, and the shelf holds only a general-purpose 0603. At 1 megohm, plus or minus 1 percent, 1206, the export returns WK12V1004FTL, its automotive twin WK12V1004FTLJ, the UL-series WF12N1004FTL and the UL automotive WF12N1004FTLJ, all 1/4 W and 100 ppm.
| Walsin part | Series | Rating / TCR | On shelf | Match / mismatch with the 1 megohm, 1%, 1206, high voltage brief | Your incumbent |
|---|---|---|---|---|---|
WK12V1004FTL |
High Voltage | 1/4 W, 100 ppm | No | Match on value, tolerance, size and series type | |
WK12V1004FTLJ |
High Voltage, automotive | 1/4 W, 100 ppm | No | Match; automotive series | |
WF12N1004FTL |
High Voltage, UL Safety Certification | 1/4 W, 100 ppm | No | Match; UL-listed series, file number not in the export | |
WF12N1004FTLJ |
High Voltage, UL Safety Certification, automotive | 1/4 W, 100 ppm | No | Match; both labels | |
WK25V1004FTL |
High Voltage, 2512 | 1 W, 100 ppm | No | Mismatch on footprint; more creepage per part | |
WR06X1004FTL |
General Purpose, 0603 | 1/10 W, 100 ppm | Yes | Mismatch: not a high voltage series; voltage rating unconfirmed |
The general-purpose shelf holds 6 lines at 1 megohm or more, all 0402 or 0603. A match is a match on export fields only. Confirm the working and overload voltages against both datasheets and qualify the string in your own circuit.
What will the export not tell a Belgian charger engineer?
The three numbers that decide the design: working voltage, overload voltage and the UL file. Of the 28 Walsin datasheets we hold, 2 cover chip resistors, the MR automotive and WR general-purpose families, and neither covers the WK or WF high voltage series, so every voltage for these 20,244 parts has to come from Walsin’s own sheet.
We make no claim that any part suits an MCS charger and no claim about creepage or clearance on your board. We hold no office, entity or stock in Belgium; our locations are Hong Kong, Shenzhen, Singapore and Jiangmen, with Chengdu in preparation. We give no legal, customs or conformity advice; confirm with your compliance team.
How can Venatech help a Belgian charging-electronics team?
How Venatech helps: all 20,244 high voltage parts are in the free tool. The cross-reference tool, VenaMatch, decodes 18 manufacturers’ part numbers across 800,000+ crossable parts, accepts up to 500 part numbers or an Excel or CSV file, filters by commercial or automotive grade, and states every difference from your original.
Upload a charger BOM at BOM upload to request a quote and the datasheets we hold. The ready-stock list is a Hong Kong snapshot dated 23 September 2026 with no high voltage resistor on it; the chip resistor range lists the families. Walsin is the only line we are authorised for; Stackpole and Viking are lines we supply. We serve from Hong Kong in small lots, with no price, lead time or stock guarantee.
The short version
Megawatt charging puts a higher DC bus across divider, monitor and bleed strings. Walsin lists 20,244 high voltage chip resistors in four series, 3,004 in UL-labelled series, and the export gives none of them a voltage. Pick on the datasheet’s working and overload voltage, then count the resistors in the string.
Send us your divider and bleed lines with the bus voltage you design for, and we will return the Walsin high voltage candidates with every difference stated and ask Walsin for the voltage figures. How many resistors does your string use today?
Sources
Fetched 11 November 2026.
- Electric Cars Report, “Milence opens Temse electric truck charging hub in Belgium”, 3 November 2026: https://electriccarsreport.com/2026/11/milence-temse-electric-truck-charging-hub-belgium/
Related reading
- Chip resistor power rating by case size
- Anti-surge chip resistors
- Walsin automotive chip resistors: MR, SR and the AEC-Q200 split
- Free tools: VenaMatch cross reference and the ready stock list
Last reviewed 11 Nov 2026.
Frequently asked questions
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What did Milence open at Temse, Belgium?
Electric Cars Report wrote on 3 November 2026 that Milence opened its fifth Belgian truck charging hub at Temse, with four hybrid MCS and CCS bays of up to 1,500 kW and four CCS bays of up to 400 kW.
How many Walsin high voltage chip resistors are there?
We counted 20,244 distinct part numbers in four series: 10,437 standard, 6,803 automotive, and 1,502 each in the UL Safety Certification and UL automotive series, across 0603, 0805, 1206, 2010 and 2512. None is on our shelf as at 23 September 2026.
Does the Walsin export give a working voltage for high voltage chip resistors?
No. None of the 137 chip resistor export files has a voltage column. The working and overload voltages, and any UL file number, have to come from Walsin’s datasheet for the exact series.
Which Walsin 1 megohm 1206 high voltage chip resistor should I compare?
The export returns four at plus or minus 1 percent: WK12V1004FTL, WK12V1004FTLJ, WF12N1004FTL and WF12N1004FTLJ, all 1/4 W and 100 ppm. They differ by series label, standard, automotive or UL. Confirm voltages on the datasheet.
How much power does a 1,000 V divider string dissipate?
In our assumed example, four 1 megohm resistors in series dissipate 0.25 W in total, 62.5 mW each, and each stands off 250 V. Power is easy; the voltage per resistor decides how many you need.
Do you hold stock or an office in Belgium, or give compliance advice?
No. Our locations are Hong Kong, Shenzhen, Singapore and Jiangmen, with Chengdu in preparation. We give no legal, customs or conformity advice and no price, lead time or stock guarantee. Confirm with your compliance team.