Product Overview
Class X2 275V AC Suppression Capacitor, Radial Leads, Unused Stock
Condition
Unused, New Old Stock; clean and in excellent condition. The photographed piece is representative of the group in stock. Its blue molded case is smooth and unbroken, with a few faint surface scuffs from handling and the glossy potting fill visible across the open top where the leads exit. Both leads are full length, straight and bright, with no solder, no flux residue and no clipped ends. The narrow top edge is printed 473nM 275V~ X2. No maker's wordmark is legible anywhere on the case in these photos.
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Product Overview
This is a Class X2 metallized film suppression capacitor in the familiar blue molded box, rated 275V AC and printed as such on the case. Please read the capacitance note below before you order: our catalog has always called this part 470nF, and the case photographs as 473nM, which is not the same number. X2 is the safety class used for across-the-line connection, line to line, where the capacitor sits directly across incoming mains and must fail in a way that does not create a shock hazard; metallized film construction in this class is self-healing by design, clearing small dielectric faults instead of shorting. Against the ruler in the last photo the body measures approximately 25 mm wide and 20 mm tall, with lead spacing of roughly 22 mm, so check it against your footprint before you commit. Our catalog lists the maker as Pilkor, though the case carries only the value and class marking with no legible wordmark. Twelve pieces are on the shelf and they are sold each.
Key Features
- Capacitance: unconfirmed, see the note below - the case reads 473nM while our catalog says 470nF
- Voltage rating: 275V AC, printed on the case
- Safety class: X2, across-the-line suppression
- Metallized film dielectric, self-healing by class
- Radial through-hole leads, full length, straight and bright
- Case marking as photographed: 473nM 275V~ X2
- Approximate body size against the ruler: 25 mm wide by 20 mm tall
- Approximate lead spacing against the ruler: 22 mm, verify before ordering
- Sold each, 12 pieces in stock
Applications
- Appliance technician rebuilding the mains input filter on a washer or dryer control board and needing the correct X2 class part rather than a general purpose film cap
- Repair shop replacing a bulged or cracked line filter capacitor in a switching power supply input stage
- Motor and pump service work where brush noise or contactor chatter is feeding interference back onto the line
- Bench builder assembling an EMI filter section for a mains powered prototype and buying the two or three pieces the board actually needs
Frequently Asked Questions
What exactly is printed on the part?
The narrow top edge reads 473nM 275V~ X2 and nothing else. Enlarged, the third character is an open-sided three rather than a closed zero, so we are quoting it as 473nM even though this listing has carried 470nF for years.
So what is the capacitance?
We are not going to assert one. Read as an EIA three-digit code, 473 is 47nF; read the way some makers print an IEC value, the same characters would be 473nF; and our own catalog has long said 470nF. Those readings are up to a factor of ten apart, the trailing M is normally a tolerance code we have not confirmed for this make, and we have not metered the part. Treat the capacitance as unconfirmed, meter it when it arrives, and do not design it into a mains position on the strength of this page alone.
Will it fit my board?
Measured against the ruler in the last photo the body is approximately 25 mm wide and about 20 mm tall, and the leads sit roughly 22 mm apart. Those are photo measurements, not caliper figures. If your footprint is tight, measure your pads first.
Has it been tested?
No. We have not metered capacitance, leakage or insulation on this piece. It is unused stock described from what the camera shows. Before it goes across a live mains line, verify the value on a meter and satisfy yourself the part suits your circuit.
Can I use a plain film capacitor instead?
Not across the line. The X2 rating exists because a capacitor connected line to line has to survive mains transients and fail safely; a general purpose film capacitor of the same value is not qualified for that position. That is the whole reason this part is marked the way it is.
It is sold as-is and untested, so what am I actually getting?
One capacitor from unused new old stock, sold each, described honestly from these photos and the marking on the case. What you take on is the verification: we have not powered or metered it, and as set out above the capacitance reading is unsettled, so the value and the fit are yours to confirm. What you avoid is a mystery bag. You see the case, the leads and the printing before you buy, you order the exact count your repair needs instead of a forced lot of fifty, and if it is not right when it lands, our satisfaction guarantee covers you. Shipping is $8 flat rate and free once your order passes $28, and orders leave the Idaho warehouse the same or next business day.
An X2 capacitor spends its whole working life standing between the mains and everything downstream, asking for no attention and getting none until the day it quietly steps aside. Put this blue box back on a filter board and let it go back to the unglamorous job it was built for.
