{"product_id":"400v-mkp-metallized-polypropylene-film-capacitor-0-1uf-33uf-tube-amplifier-crossover","title":"400V MKP Metallized Polypropylene Film Capacitor — 0.1µF–33µF for Tube Amplifier \u0026 Speaker Crossover","description":"\u003ch2\u003e400V MKP Metallized Polypropylene Film Capacitor — 0.1µF–33µF\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMKP (Metallized Polypropylene) film capacitors\u003c\/strong\u003e are the audiophile-grade choice for tube amplifier coupling, speaker crossover networks, and audio filter circuits. The polypropylene dielectric delivers extremely low dissipation factor (DF), near-zero ESR, and negligible dielectric absorption — characteristics that translate directly to lower distortion and more accurate signal reproduction compared to electrolytic or polyester film capacitors. Rated at \u003cstrong\u003e400V DC\u003c\/strong\u003e with values from \u003cstrong\u003e0.1µF to 33µF\u003c\/strong\u003e, these capacitors cover the full range of crossover and coupling applications.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eMKP — Metallized Polypropylene Film\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd\u003e400V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCapacitance Range\u003c\/td\u003e\n\u003ctd\u003e0.1µF – 33µF (select variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTolerance\u003c\/td\u003e\n\u003ctd\u003e±5% or ±10% (varies by value)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDissipation Factor (DF)\u003c\/td\u003e\n\u003ctd\u003eVery low (≤0.001 at 1kHz typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDielectric Absorption\u003c\/td\u003e\n\u003ctd\u003eNegligible\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e−40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eLead Style\u003c\/td\u003e\n\u003ctd\u003eRadial (through-hole)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eTube amplifier coupling, speaker crossover, audio filter\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eCN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eMKP vs Other Capacitor Types for Audio\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eMKP (This Product)\u003c\/th\u003e\n\u003cth\u003eElectrolytic\u003c\/th\u003e\n\u003cth\u003eMKT (Polyester)\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDistortion\u003c\/td\u003e\n\u003ctd\u003e✅ Extremely low\u003c\/td\u003e\n\u003ctd\u003e❌ High\u003c\/td\u003e\n\u003ctd\u003e❌ Moderate\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eESR\u003c\/td\u003e\n\u003ctd\u003e✅ Near zero\u003c\/td\u003e\n\u003ctd\u003e❌ High\u003c\/td\u003e\n\u003ctd\u003e❌ Low-moderate\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDielectric Absorption\u003c\/td\u003e\n\u003ctd\u003e✅ Negligible\u003c\/td\u003e\n\u003ctd\u003e❌ Significant\u003c\/td\u003e\n\u003ctd\u003e❌ Low\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePolarity\u003c\/td\u003e\n\u003ctd\u003e✅ Non-polarized\u003c\/td\u003e\n\u003ctd\u003e❌ Polarized\u003c\/td\u003e\n\u003ctd\u003e✅ Non-polarized\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSize for same value\u003c\/td\u003e\n\u003ctd\u003e❌ Larger\u003c\/td\u003e\n\u003ctd\u003e✅ Compact\u003c\/td\u003e\n\u003ctd\u003e❌ Medium\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBest Use\u003c\/td\u003e\n\u003ctd\u003eCoupling, crossover, signal path\u003c\/td\u003e\n\u003ctd\u003ePower supply filtering\u003c\/td\u003e\n\u003ctd\u003eGeneral purpose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eTube amplifier (valve amp) interstage and output coupling capacitors\u003c\/li\u003e\n  \u003cli\u003e2-way and 3-way passive speaker crossover capacitors (tweeter high-pass)\u003c\/li\u003e\n  \u003cli\u003eAudio preamplifier signal path coupling\u003c\/li\u003e\n  \u003cli\u003eTone control and equalizer filter networks\u003c\/li\u003e\n  \u003cli\u003eCrossover upgrade replacement for electrolytic or polyester caps\u003c\/li\u003e\n  \u003cli\u003eMotor run capacitors in low-power AC applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eQ: Can I use these in a speaker crossover with an 8Ω tweeter?\u003c\/h3\u003e\n\u003cp\u003eYes. MKP capacitors are ideal for tweeter high-pass filters. For a first-order 3kHz crossover with an 8Ω tweeter: C = 1 \/ (2π × f × Z) = 1 \/ (2π × 3000 × 8) ≈ 6.6µF. Select the nearest standard value (6.8µF). The 400V rating provides ample headroom for typical home audio power levels.\u003c\/p\u003e\n\n\u003ch3\u003eQ: Are these oil-immersed capacitors?\u003c\/h3\u003e\n\u003cp\u003eThese are metallized polypropylene film capacitors. Some larger values in this series use an oil-impregnated construction for improved voltage handling and reduced partial discharge — check the specific variant description for confirmation.\u003c\/p\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1× 400V MKP Metallized Polypropylene Film Capacitor (capacitance value per selected variant)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"400V0.33 \/ CHINA","offer_id":46966767288555,"sku":"200007763:201336100;688:203122814#400V0.33","price":31.84,"currency_code":"USD","in_stock":true},{"title":"400V0.47 \/ CHINA","offer_id":46966767321323,"sku":"200007763:201336100;688:203122822#400V0.47","price":33.26,"currency_code":"USD","in_stock":true},{"title":"400V0.1 \/ CHINA","offer_id":46966767354091,"sku":"200007763:201336100;688:203122846#400V0.1","price":30.8,"currency_code":"USD","in_stock":true},{"title":"400V0.22 \/ 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