R46KI2220JH01M KEMET 0.022µF X2 Safety Film Capacitor

ElecSuppliers Part Number GuideAug 22, 2026

R46KI2220JH01M is a KEMET R46 series metallized polypropylene film capacitor designed for X2 across-the-line EMI suppression applications. It provides a 0.022 µF capacitance value, 275 VAC rated voltage and 20% capacitance tolerance in a radial through-hole package.

The component is part of KEMET's R46 X2 275 series, which is designed for interference suppression in AC mains applications. The R46 series uses metallized polypropylene film and is intended for applications where an X2 safety capacitor is required.

R46KI2220JH01M Key Specifications

R46KI2220JH01M has a capacitance of 0.022 µF, equivalent to 22 nF or 22,000 pF. Its rated AC voltage is 275 VAC, while the DC voltage rating is 560 VDC. The capacitance tolerance is ±20%.

The capacitor uses a polypropylene film dielectric and a metallized construction. It has two straight radial leads with a 15 mm lead spacing. The body dimensions are approximately 18 mm long, 5 mm wide and 11 mm high.

The specified operating temperature range extends from -40°C to +110°C. The component is supplied in bulk packaging and has a factory pack quantity of 2,000 pieces.

What Is the R46KI2220JH01M Used For?

R46KI2220JH01M is primarily used for EMI and RFI suppression across AC lines. As an X2 safety capacitor, it can be connected across the line and neutral conductors in equipment where the capacitor's failure must not create a dangerous electric shock hazard.

This type of capacitor is commonly found in AC input sections of power supplies, appliances, industrial equipment and other electronic products connected directly to the mains supply.

The capacitor can help reduce high-frequency interference generated by switching power supplies, motors and other electrical loads. In a properly designed input filter, it works together with inductors, common-mode chokes and other suppression components to control conducted electromagnetic interference.

KEMET R46 X2 Safety Capacitor Series

The R46 series is part of KEMET's film capacitor portfolio for EMI suppression. KEMET describes its R41 and R46 series as metallized polypropylene film capacitors with self-healing characteristics and applications as interference suppressors for across-the-line circuits.

The X2 classification is important because it identifies the intended safety application. X capacitors are designed for connection across the supply line, where a failure of the capacitor is not expected to expose a person to dangerous electric shock.

This makes an X2 capacitor different from an ordinary polypropylene film capacitor. Although the capacitance and voltage specifications may look similar, safety-rated capacitors are designed and tested for the specific requirements of mains-connected applications.

R46KI2220JH01M in EMI Filter Circuits

A 22 nF X2 capacitor such as R46KI2220JH01M can be used as part of an AC input EMI filter. Its impedance decreases as frequency increases, allowing high-frequency noise components to be bypassed across the AC line.

The actual filtering performance depends on the complete circuit rather than the capacitor alone. PCB layout, wiring, common-mode inductance, differential-mode filtering and the characteristics of the noise source all affect the final EMI performance.

For this reason, engineers normally select the X2 capacitance value together with the other components in the input filter rather than treating 22 nF as a universal value.

R46KI2220JH01M Package and Mounting

R46KI2220JH01M uses a radial through-hole configuration with a 15 mm lead pitch. This makes it suitable for conventional PCB mounting and for equipment designs where through-hole film capacitors are preferred.

The approximately 18 mm × 5 mm × 11 mm body size should be considered during PCB layout, particularly in compact power supply assemblies where the available vertical and horizontal space is limited.

The straight-lead configuration also makes the component suitable for automated or manual insertion processes depending on the production requirements.

R46KI2220JH01M Replacement Considerations

When replacing R46KI2220JH01M, engineers should match the safety classification and electrical characteristics rather than selecting another 22 nF film capacitor solely based on capacitance.

The replacement should be suitable for X2 across-the-line applications and should meet or exceed the required AC voltage rating. Capacitance tolerance, lead spacing, body dimensions, temperature range and mounting style should also be checked.

The R46 series contains numerous closely related part numbers. For example, KEMET offers different tolerance and packaging variations around the same 0.022 µF and 275 VAC configuration. Therefore, the complete MPN should be checked when purchasing or replacing the component.

R46KI2220JH01M Availability

Current distributor information shows that the exact R46KI2220JH01M remains listed by major component distributors. Mouser currently identifies it as a KEMET safety capacitor and lists the exact electrical and mechanical specifications, but the product is currently shown as non-stocked with an estimated factory lead time of around 30 weeks.

Other component distributors continue to list the exact MPN, although inventory information varies significantly between suppliers. This means buyers should confirm actual stock, manufacturing origin and lead time before using the component for production planning.

R46KI2220JH01M for AC Mains EMI Suppression

R46KI2220JH01M is a compact 22 nF X2 safety capacitor intended for AC-line interference suppression. Its 275 VAC rating, polypropylene film construction, 20% tolerance and radial through-hole package make it suitable for a range of mains-connected electronic equipment.

For new designs, the capacitor should be selected as part of the complete EMI and safety design. Creepage and clearance, discharge requirements, surge conditions, applicable safety standards and the actual AC environment should all be evaluated before production.

For replacement sourcing, the complete R46KI2220JH01M part number should be retained whenever the original electrical and mechanical characteristics need to be reproduced.