Product Overview
Iskra 2.2 nF 250VAC / 275VAC Line-to-Ground EMI Suppression RFI Capacitor
Condition
New old stock (NOS), unused surplus inventory. Leads are full length and straight, with crisp original markings across the front face.
Same or next business day shipping from our Idaho warehouse. Reliable parts since 1999. Honest pricing, no nonsense.
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Product Overview
The Iskra KNB2520 is a metallized polypropylene (MKP) Class Y2 safety capacitor engineered for line-to-ground radio frequency interference (RFI) and electromagnetic interference (EMI) suppression. Rated for 2200 pF (0.0022 µF) at 250 VAC and 275 VAC, this radial-leaded component provides dependable transient suppression across mains filtering and line-bypass circuits.
Key Features
- Capacitance value: 2200 pF (2.2 nF / 0.0022 µF)
- Safety classification: Class Y2 line-to-ground suppression
- Rated AC voltage: 250 VAC / 275 VAC continuous (continuous DC rating 1000 V)
- Dielectric: Metallized polypropylene film (MKP)
- Lead configuration: 2-pin radial through-hole wire leads with 10 mm lead pitch
- Encapsulation: Flame-retardant box casing meeting UL 94V-0 standards
Applications
- Rebuilding line filters and EMI suppression stages in vintage audio equipment, test gear, and laboratory power supplies.
- Mains input conditioning for DIY linear power supplies, tube amplifiers, and custom bench tools.
- Replacing degraded or cracked line-to-ground Y capacitors in appliance motor controls and power tools.
Frequently Asked Questions
What is the difference between an X capacitor and a Y capacitor?
Class X capacitors connect line-to-line across the AC mains to suppress differential mode noise. Class Y capacitors, such as this Y2-rated unit, connect from line to ground to filter common-mode interference and are built to fail open to prevent electric shock hazards.
What is the lead spacing on this capacitor?
The leads are spaced at a nominal 10 mm pitch (PCM 10), standard for through-hole printed circuit board mounting in compact power filter circuits.
Why buy individual capacitors here instead of a bulk surplus lot?
You can order the exact quantity needed for your bench repair or project without buying a forced bulk lot. Buying more pieces costs less each, and the price-break table on this page shows what each quantity costs. Shipping is $8 flat rate, free once the order passes $28, and orders leave our Idaho warehouse the same or next business day.
A proper Y2 capacitor doesn't ask for credit; it just sits quietly between line and chassis, keeping line spikes where they belong. Pop it in, close the chassis, and enjoy the clean silence on the mains.
