For a Y2 safety capacitor in Romanian fan and motor electronics, Walsin Technology (Walsin) lists 532 safety-rated parts: 367 X1/Y1 and X1/Y2 disc capacitors and 165 S2-series SMD X1/Y2 MLCC. A 4.7 nF Y2 brief returns 11 discs. Venatech Limited, an authorised Walsin distributor in Hong Kong, crosses and quotes them.
Venatech Limited, an authorised Walsin distributor in Hong Kong, wrote this for EMC, power and sourcing engineers in Oradea and western Romania who lay out the mains EMI filters of EC fans, motor drives, heat pumps and appliance controls. We parsed the Walsin disc capacitor export Walsin_DiscCap_ALL.xlsx (929 parts), the MLCC export 00_ALL_MLCC_parts_combined.xlsx and our ready-stock list as at 23 September 2026. Every part number is real, and the market facts come from one report fetched on 11 November 2026.
What did ebm-papst open in Oradea?
A new fan and motor facility. According to Evertiq on 10 June 2026, German fan and motor maker ebm-papst opened a facility of about 30 million euros in the Oradea II Industrial Park, with 19,200 square metres of floor space including a 1,200 square-metre R&D centre and 4,100 square metres of production, and about 200 staff in Romania.
The report says the site replaces the previous Romanian facility, which became unavailable after ebm-papst sold its IDT division to Siemens, and that more jobs are planned over five years. Those are Evertiq’s figures, not ours. Our conclusion: EC fans and motor drives connect to the mains, and every mains input needs line-to-earth Y capacitors and across-the-line X capacitors that carry safety approvals. We have no relationship with ebm-papst and say nothing about what it buys.
How many safety capacitors does Walsin list?
532 safety-rated part numbers. We counted 367 safety-certified disc capacitors in Walsin_DiscCap_ALL.xlsx, 186 with a Y2 rating and 181 with a Y1 rating, and 165 SMD MLCC in the Safety Certificated Caps X1/Y2 (S2 series) of 00_ALL_MLCC_parts_combined.xlsx.
| Walsin safety family | Parts | Format |
|---|---|---|
| X1/Y2 discs (AC series, incl. 500 V, small-size and Auto variants) | 186 | Leaded disc |
| X1/Y1 discs (AH and AS series, incl. 500 V and small-size) | 181 | Leaded disc |
| X1/Y2 SMD MLCC (S2 series) | 165 | 1808, 1812, 2211, 2220 |
The Auto variant of the AC series adds 23 X1/Y2 discs rated X1 440 Vac and Y2 300 Vac with a 1,500 Vdc rating, useful where a fan sits in a vehicle or on a DC bus. Our guide to X1/Y1 versus X1/Y2 safety capacitors explains the classes, and the disc capacitor range lists every family.
Which Walsin 4.7 nF Y2 safety capacitors cross an EMI filter brief?
Eleven discs. We filtered the Y2-rated discs to 4,700 pF and found 11 Walsin part numbers in the AC series, all plus or minus 20%, in Y5U (YU) and Y5V (YV) dielectrics, rated from Y2 250 Vac to Y2 500 Vac.
The table takes a typical line-to-earth brief for a 230 V fan drive, 4.7 nF, Y2 at 300 Vac or more, Y5U dielectric, and shows the closest rows. Your incumbent goes in the last column.
| Walsin part | Dielectric | Rating (from the export) | Match / mismatch with the brief | Your incumbent |
|---|---|---|---|---|
YU1AC472M120 |
Y5U | X1 440 Vac / Y2 300 Vac | Match on every field | |
YU1AC472M100 |
Y5U | X1 440 Vac / Y2 300 Vac | Match, small-size body | |
YU7AC472M120 |
Y5U | X1 440 Vac / Y2 300 Vac, 1,500 Vdc | Match, Auto variant | |
YU5AC472M120 |
Y5U | X1 500 Vac / Y2 500 Vac, 1,500 Vdc | Match, higher rating | |
YU0AC472M120 |
Y5U | X1 440 Vac / Y2 250 Vac | Mismatch: Y2 rating below 300 Vac | |
YV1AC472M100 |
Y5V | X1 440 Vac / Y2 300 Vac | Mismatch: Y5V drifts more with temperature |
A match is a match on export fields. Lead spacing, body diameter and the approval certificates are in Walsin’s datasheet and the certifying bodies’ files, so check both before release; our note on safety capacitor certificate numbers you can check shows how.
When does a fan drive need Y1 instead of Y2?
When the insulation must be reinforced rather than basic. Y2 capacitors bridge basic insulation, such as line to protective earth in a Class I fan; Y1 capacitors bridge double or reinforced insulation, as in a Class II product with no earth, and Walsin lists 181 Y1-rated discs for that case.
For an Oradea fan or pump drive, the product’s protection class sets the choice, not the capacitor catalogue. Total Y capacitance also sets touch current, so a 4.7 nF Y2 on each line may be fine on an earthed fan and too much on a handheld tool. The safety standard and your test house decide; we give no certification advice, so confirm with your compliance team.
Which Walsin safety capacitors are on the Hong Kong shelf?
Two SMD X1/Y2 lines. We matched the 532 safety parts against our ready-stock list as at 23 September 2026 and found two Walsin S2-series SMD X1/Y2 MLCC on the shelf: S242B102K502 (1808, 1 nF) and S252B222K502 (2211, 2.2 nF), both X7R.
| Walsin part on the shelf | Size | Capacitance | Tolerance | Dielectric |
|---|---|---|---|---|
S242B102K502 |
1808 | 1 nF | ±10% | X7R |
S252B222K502 |
2211 | 2.2 nF | ±10% | X7R |
An SMD Y2 part removes a hand-inserted disc from a fan board and goes through reflow with the rest. The disc capacitors above are quoted to order; request a quote and we source them through our authorised Walsin channel. The ready-stock list is a dated snapshot, never live-synced, and we give no stock or lead-time promise.
How can Venatech help a motor and fan electronics maker in Romania?
How Venatech helps: cross the X and Y lines, then quote. Venatech Limited is the authorised Walsin distributor in Hong Kong, and VenaMatch decodes 18 manufacturers’ part numbers and crosses 800,000+ parts to Walsin, marking every field.
Paste up to 500 part numbers into the cross-reference tool, or upload a BOM. We serve small lots from Hong Kong, quote fast and help you check each cross; request a quote through the site. Walsin is the line we are authorised for; Stackpole and Viking are lines we supply. We give no certification or customs advice.
The short version
Oradea’s new fan and motor facility adds to Romania’s mains-connected electronics, and each mains input needs approved X and Y capacitors. Walsin covers that with 532 safety-rated parts; a 4.7 nF Y2 brief returns 11 discs, five of which match a 300 Vac Y5U brief, and two SMD X1/Y2 lines were on our Hong Kong shelf as at 23 September 2026.
Send us your EMI filter’s X and Y lines with the protection class and mains voltage, and we will return the Walsin rows with every field marked. Is your fan drive Class I or Class II?
Related reading
- X1/Y1 versus X1/Y2 safety capacitors
- Five safety capacitor certificate numbers you can check
- Passives for a white goods inverter
- Free cross-reference tool and ready-stock snapshot
Last reviewed 11 Nov 2026.
Sources
Fetched 11 November 2026.
- Evertiq, “ebm-papst opens new facility in Romania”, 10 June 2026: https://evertiq.com/news/2026-06-10-ebm-papst-opens-new-facility-in-romania
Frequently asked questions
What did ebm-papst open in Romania?
Evertiq reported on 10 June 2026 that ebm-papst opened a facility of about 30 million euros in Oradea, with 19,200 square metres including an R&D centre, and about 200 staff in Romania. These are the report’s figures.
How many Walsin safety capacitors are there?
We counted 532 safety-rated Walsin parts: 186 X1/Y2 discs, 181 X1/Y1 discs and 165 S2-series SMD X1/Y2 MLCC.
Which Walsin 4.7 nF Y2 capacitor suits a 230 V fan EMI filter?
YU1AC472M120 matches a 4.7 nF, Y2 300 Vac, Y5U brief on every export field, and YU7AC472M120 adds a 1,500 Vdc rating. Confirm lead spacing and approvals against Walsin’s datasheet.
What is the difference between a Y1 and a Y2 capacitor?
Y2 bridges basic insulation, such as line to earth; Y1 bridges double or reinforced insulation. Your product’s protection class decides which one you need.
Does Venatech stock Walsin safety capacitors in Hong Kong?
As at 23 September 2026 our snapshot held two S2-series SMD X1/Y2 lines, S242B102K502 and S252B222K502. Disc parts are quoted to order; we make no lead-time promise.
Can Venatech supply buyers in Romania?
Yes. Venatech Limited is an authorised Walsin distributor in Hong Kong, serving buyers in Romania in small lots. We give no certification or customs advice; confirm with your compliance team.