NEWS

Stackpole Resistors for Rail and Industrial Electronics in France: Alstom Booked 27.6 Billion Euros of Orders, and Walsin Has 0 of 18,149 Part Numbers at 1210 Rated 1 W, the Stackpole RMCP-UP Figure

For French rail and industrial power boards, Stackpole’s RMCP-UP thick film series is rated 1 W at 1210, and Walsin’s export has no 1210 chip resistor above 0.75 W: 0 of 18,149 part numbers. At the six other sizes the ratings line up, including 3 W at 2512.

Venatech Limited, an authorised Walsin distributor in Hong Kong, wrote this for a design or sourcing engineer at a French rail, industrial power or drives maker who is choosing a high-power chip resistor. Walsin Technology (Walsin) is the only line we are authorised for; Stackpole Electronics (SEI) is a line we supply. The Walsin side comes from our own chip resistor export: 234,815 rows, 234,401 distinct part numbers, which we re-measured on 10 November 2026. The Stackpole side comes from Stackpole’s own datasheet, fetched the same day. Every Walsin part number below is real.

What did Alstom report for France and SNCF, and why does a resistor buyer care?

It reported a very large order book. In its annual results release of 13 May 2026, Alstom stated orders of 27.6 billion euros for the year to 31 March 2026, a backlog of 104.4 billion euros, and, among French items, a further 96 RER NG trainsets for SNCF Voyageurs worth about 1.7 billion euros and 30 more Avelia Horizon high-speed trains worth about 1.4 billion euros.

Those are Alstom’s figures, read from its results release on 10 November 2026. The inference is ours and is modest: rolling stock of that volume carries a great deal of traction, auxiliary and braking power electronics, and every one of those boards has resistors that dissipate real power. We say nothing about what Alstom, SNCF or any supplier buys, and we have no relationship with any of them.

How much power does Stackpole’s RMCP-UP series carry at each case size?

From 0.2 W at 0402 to 3 W at 2512. Stackpole’s RMCP-UP datasheet, read on 10 November 2026, lists thick film ultra high power chip resistors rated 0.2 W at 0402, 0.33 W at 0603, 0.5 W at 0805, 0.75 W at 1206, 1 W at 1210, 1.5 W at 2010 and 3 W at 2512, at 70 degrees Celsius.

The same datasheet gives tolerances of 0.5, 1, 2 and 5 percent, a resistance range of 1 ohm to 10 megohm, nickel barrier terminations as standard, and a TCR of plus or minus 400 ppm per degree Celsius from 1 to 9.76 ohm, tightening to plus or minus 100 ppm for most sizes from 10 ohm upward. It states that working voltage is the lesser of the square root of power times resistance or the maximum working voltage. Stackpole’s RMCP-UP datasheet is the source for every Stackpole figure in this post.

Where does Walsin’s high-power chip resistor shelf match RMCP-UP, and where does it stop?

It matches at six of seven sizes and stops short at 1210. We took the maximum rated power in the four Walsin series with High Power in the name, at each case size, and laid it beside the RMCP-UP rating: six sizes match, and the 1210 maximum is 0.75 W against 1 W.

The part numbers are real. The last column is for your incumbent.

Case size	Stackpole RMCP-UP at 70 C	Walsin maximum in the high-power series	Walsin part number (10 kilohm, plus or minus 1%)	Walsin part numbers at that power	Match / mismatch
0402	0.2 W	1/5 W	`WF04A1002FTL`	711	Match on power
0603	0.33 W	1/3 W	`WF06A1002FTL`	1,660	Match on power (0.33 W against 0.3333 W)
0805	0.5 W	1/2 W	`WF08A1002FTL`	1,660	Match on power
1206	0.75 W	3/4 W	`WF12A1002FTL`	1,662	Match on power
1210	1 W	3/4 W	`WF10A1002FTL`	1,660	Mismatch: 0.25 W lower
2010	1.5 W	1.5 W	`WF20A1002FTL`	1,660	Match on power
2512	3 W	3 W	`WF25A1002FZL`	1,662	Match on power

A match on power is a match on one field. TCR, tolerance, resistance range, voltage and termination still have to be compared, and the Walsin figures are read from the export, not from a datasheet. The reason is in the flag below. For the method of reading a rating against a footprint, see our post on chip resistor power rating by case size.

How many Walsin part numbers reach those ratings, and what is on the Hong Kong shelf?

The 1210 gap is total. We counted all 18,149 distinct Walsin 1210 chip resistor part numbers in the export and found none rated at 1 W or above; the highest rating at that size is 3/4 W, so an RMCP-UP 1210 at its full 1 W has no Walsin drop-in match on power.

The workarounds are a design decision, not ours: move to 2010 (1.5 W, 1,660 part numbers), derate the 1210 below 0.75 W, or split the dissipation across two resistors. The article on anti-surge chip resistors covers the pulse case separately.

On the shelf, we read the stock list as at 23 September 2026. It holds 254 chip resistor lines. None is a 1210 or a 2010; 2 are 2512, and only 1 sits in a high-power series: MF12P3303FTL, a 1206 in the automotive high-power series. The ready stock list is a dated snapshot, never live-synced. Ask us through the site for current availability.

What will we not tell you about rail and industrial resistors?

Anything about qualification for railway use. We hold no Walsin datasheet for the high-power series at all, and the Stackpole RMCP-UP feature list as we read it names nickel barrier terminations and RoHS, REACH and halogen-free compliance, with no railway standard; read the datasheet itself for any qualification statement.

We make no claim that any resistor suits a traction converter, an auxiliary supply or a braking circuit. We do not know your pulse profile, your temperature rise or your creepage rules. We hold no ISO 9001 or IATF 16949 certificate, and no office, entity or stock in France; 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. Qualification stays with you.

How can Venatech help a French power electronics maker?

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. You paste up to 500 part numbers, or an Excel or CSV file, and each Walsin candidate comes back with every field marked match or mismatch. Load a whole BOM for a review, and see the chip resistor range.

Our worked example here: a 1 W, 1210 requirement returned zero Walsin part numbers, and the nearest alternatives are a 0.75 W part or a 2010. We would rather say that than offer a list that fails. Walsin is the only line we are authorised for; Stackpole is a line we supply. We serve from Hong Kong in small lots, and you request a quote through the site.

The short version

Stackpole RMCP-UP is rated 0.2 to 3 W across seven sizes; Walsin’s high-power series matches six of them on power.
At 1210 Walsin tops out at 0.75 W against 1 W, on 0 of 18,149 part numbers.
Walsin figures come from the export, not a datasheet; Stackpole figures come from its datasheet, read 10 November 2026.
Qualification and suitability for rail stay with you.

Paste your high-power resistor list into the free cross-reference tool and see every field marked match or mismatch. Qualification stays with you.

Frequently asked questions

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What did Alstom report for the year to 31 March 2026?

Orders of 27.6 billion euros and a backlog of 104.4 billion euros, in its results release of 13 May 2026. It also named 96 RER NG trainsets and 30 Avelia Horizon trains for SNCF Voyageurs. These are Alstom’s figures, not ours.

What power does Stackpole RMCP-UP carry at 1210?

1 W at 70 degrees Celsius, per Stackpole’s RMCP-UP datasheet read on 10 November 2026. The series runs from 0.2 W at 0402 to 3 W at 2512. Confirm against the current datasheet for your exact part number.

Does Walsin have a 1210 chip resistor rated 1 W?

Not in our export. We counted 18,149 distinct Walsin 1210 chip resistor part numbers and the highest rating is 3/4 W. The next size up, 2010, reaches 1.5 W. Confirm against Walsin’s current datasheet.

Which Walsin high-power sizes match RMCP-UP on power?

Six: 0402, 0603, 0805, 1206, 2010 and 2512, for example WF04A1002FTL and WF25A1002FZL. Power is one field. Compare TCR, tolerance, voltage and termination too, and 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 France?

No. We hold no office, entity or stock in France; our locations are Hong Kong, Shenzhen, Singapore and Jiangmen. We hold no ISO 9001 or IATF 16949 certificate and give no legal or customs advice.