Schaffner
Schaffner FN 610-3/06 EMI Power Line Filter, 3 A, 250 V AC, Chassis Mount
- 4 photos
Never used. The original pack has been opened, or the quantity was split off a full reel or tube. Leads are original and unclipped.
New old stock, open stock on the grading scaleSend the quantity you need. You get a quote back with shipping before anything is charged.
Video
Filmed on the bench. Sound is stripped from product clips.
- 0:07
Specifications
| Specification | Value |
|---|---|
| Identification | |
| Part number | FN 610-3/06 |
| Manufacturer | Schaffner |
| Condition | New old stock, open stock |
| Date code | 9927 |
| Package | Chassis mount, 6.3 mm quick connect terminals |
| Country of origin | Thailand |
| Family | FN 610 |
| Stock number | B94RSVDC |
| Overview | |
| Type | Single stage EMI and RFI power line filter |
| Manufacturer part number | FN 610-3/06 |
| Ratings | |
| Rated current | 3 A at 40 C |
| Rated voltage | 110 to 250 V AC |
| Line frequency | 50 to 60 Hz |
| Circuit | |
| Common mode inductance | 2 x 2.0 mH |
| X capacitor | 0.033 uF, X2 class, self healing |
| Y capacitors | 2 x 2200 pF, Y2 class |
| Climatic category | 25 / 100 / 21 |
| Physical | |
| Terminals | 6.3 mm quick connect tabs, separate earth tab |
| Mounting | Two hole flange, one at each end |
| Case | Plated steel, potted |
| Compliance | |
| Approvals | UL, CSA, VDE |
| Standard | EN 133 200 |
| Safety compliance | IEC 950 |
| Provenance | |
| Date code | 9927, week 27 of 1999 |
| Country of origin | Thailand |
About this part
A Schaffner FN 610-3/06 single stage EMI and RFI power line filter, rated 3 A at 40 C on 110 to 250 V AC, 50 to 60 Hz. New old stock, never installed, date coded 9927 which puts it at week 27 of 1999. Made in Thailand.
The FN 610 was Schaffner's general purpose chassis mount filter and it turns up in test gear, medical equipment, industrial controllers and anything else that had to pass conducted emissions testing in the 1990s. This is the 3 A member of the family with the 6.3 mm quick connect terminal option, which is what the /06 suffix denotes.
Everything in the spec table below was read off the rating plate on this actual part rather than copied from a series datasheet. The plate gives a common mode choke of 2 x 2.0 mH, a 0.033 uF X2 class capacitor across the line, and a pair of 2200 pF Y2 class capacitors to earth. It carries UL, CSA and VDE approvals, is built to EN 133 200 and is marked IEC 950 compliant.
Four faston tabs carry line and load, and a fifth separate tab is the earth connection. That earth tab is not optional: the Y capacitors reference the chassis through it, so a filter left unearthed loses its common mode attenuation and is unsafe as well. Mounting is a two hole flange, one at each end of the case.
Film capacitors are the reason a filter of this age is still worth fitting. Unlike an electrolytic, an X2 or Y2 safety capacitor does not dry out sitting on a shelf, and this one has never seen mains surge or operating heat. What you are buying is a part that left the factory in 1999 and has been in a drawer since.
Questions about this part
What does this filter actually do?
It sits between the wall and the equipment and attenuates high frequency noise travelling in both directions. The common mode choke blocks noise that appears equally on line and neutral, the X capacitor across the line handles differential noise, and the two Y capacitors shunt common mode noise to the chassis earth. In practice it stops a switching supply from polluting the mains and stops mains borne hash from reaching the equipment.
What do the numbers 25 / 100 / 21 on the label mean?
That is the climatic category. It reads as a lower category temperature of minus 25 C, an upper category temperature of 100 C, and 21 days of damp heat testing. It describes the environmental envelope the part was qualified against, not a continuous operating rating. Run it at its 3 A current rating at 40 C ambient as the plate states.
Is 3 A the whole story on current rating?
No, and it matters. The plate specifies 3 A at 40 C. Filter current ratings fall as ambient temperature rises, because the limit is the temperature the choke winding reaches. In a warm enclosure, derate. If you need the full 3 A in still air inside a hot chassis, either give it airflow or step up to a higher rated filter in the same family.
Does a filter this old still meet its published performance?
The choke does not age in any way that matters. The capacitors are the part to think about. X2 and Y2 safety capacitors are film types, not electrolytics, so they do not dry out on a shelf the way a power supply capacitor would, and this one has been stored dry and unused. Film capacitors in mains filters degrade from surge and heat in service, which this one has never seen.
How do I wire it up?
The plate marks one pair of tabs LINE and the other LOAD, and the small schematic on the label shows the orientation. Mains in on the LINE side, equipment on the LOAD side. The separate tab is earth and it has to be bonded to the chassis for the Y capacitors to do anything at all: an unearthed filter loses its common mode performance entirely and is a safety problem besides. Terminals are 6.3 mm quick connects.
Will it work on 60 Hz mains in the United States?
Yes. The plate reads 110 to 250 V AC at 50 to 60 Hz, so a 120 V 60 Hz supply is inside its range with margin. It was a common fitment in equipment sold on both sides of the Atlantic, which is why it carries UL, CSA and VDE marks together.
What condition is this specific one in?
New old stock, open stock. It was never installed. The case shows shelf handling marks and light tarnish on the plated steel and the mounting flanges, visible in the photographs, and the rating plate is fully legible. The photographs on this listing are of the actual part you would receive, not a stock image.