The KEMET F461AP563K630R is a radial leaded polypropylene film capacitor designed for applications requiring stable capacitance over temperature, low dielectric loss, and minimal self-inductance. This component belongs to KEMET's portfolio of metallized polypropylene film capacitors, engineered to deliver predictable performance in power electronics, audio signal coupling, motor control, and filtering circuits where low ESR and high reliability are prioritized.
Film capacitors using polypropylene dielectric offer superior frequency stability compared to electrolytic types, with significantly lower dissipation factors typically ranging from 0.001 to 0.01 at 1 kHz. The radial lead configuration simplifies through-hole mounting in legacy designs and prototyping environments, while the self-healing metallized electrode structure provides inherent failure mode protection by isolating microscopic dielectric defects without catastrophic breakdown. This makes the F461AP563K630R suitable for snubber networks in switch-mode power supplies, AC line filtering in industrial motor drives, and DC link applications where voltage transients must be absorbed without permanent degradation.
Polypropylene film capacitors maintain capacitance tolerance and low loss tangent across extended temperature ranges, often from -40°C to +105°C, enabling consistent operation in automotive underhood electronics, solar inverters, and HVAC control boards. The radial form factor allows compact board layouts when combined with automated insertion equipment, and the robust construction resists mechanical stress during thermal cycling and vibration. Unlike ceramic capacitors, polypropylene film types exhibit negligible voltage coefficient and aging effects, ensuring long-term stability in precision timing circuits, sample-and-hold stages, and power factor correction modules.
This capacitor suits Class B or Class X2 safety applications when derated appropriately, providing EMI suppression in line-to-line configurations without risk of short-circuit failure. The film construction inherently supports pulse handling in switched-capacitor converters and resonant tank circuits, where rapid charge-discharge cycles demand low internal resistance and minimal temperature rise. Integration into mixed-signal boards benefits from the component's low noise coupling and absence of piezoelectric effects common in ceramic dielectrics, making it a practical choice for audio crossover networks, instrumentation amplifiers, and high-resolution ADC input stages.
Active production status ensures supply continuity for both prototyping and volume manufacturing, while RoHS3 compliance and REACH conformance support regulatory requirements in consumer, industrial, and medical equipment. The radial package enables straightforward manual placement during development phases and compatibility with wave soldering processes in cost-sensitive production runs. Engineers selecting this component gain access to KEMET's established film capacitor technology, balancing performance predictability with straightforward integration into circuits demanding reliable energy storage, filtering, or coupling across diverse operating conditions.
Finding a Practical Replacement for KEMET F461AP563K630R Film Capacitor
When a KEMET F461AP563K630R capacitor becomes unavailable, reaches end-of-stock limits, or needs to be second-sourced for production continuity, the replacement decision is not based on capacitance alone. A suitable alternative must match the electrical stress profile, dielectric behavior, leaded radial footprint, tolerance expectations, compliance status, and long-term reliability requirements of the original circuit.
The F461AP563K630R is a polypropylene radial film capacitor with a nominal capacitance of 0.056 µF and a 630 VDC voltage class. Possible replacement or equivalent part numbers to evaluate include:
| Manufacturer | Candidate Part Number |
|---|---|
| TDK / EPCOS | B32652A6563K000 |
| Panasonic |
ECW-F6563JL
Panasonic Electronic Components
CAP FILM 0.056UF 5% 630VDC RAD
35402
|
| Vishay | MKP1848C55630JK2 |
| WIMA | MKP2C025601F00KSSD |
These parts should be reviewed as engineering candidates rather than automatic drop-in substitutes. Lead spacing, body size, pulse-current capability, dissipation factor, tolerance, operating temperature range, and qualification level should be checked against the actual PCB and circuit conditions.
What the KEMET F461AP563K630R Defines in the Original Design
The KEMET F461AP563K630R is specified as a radial polypropylene film capacitor. Its key electrical identity is 0.056 µF capacitance, ±10% tolerance, and 630 VDC rated voltage. The polypropylene dielectric gives it low dielectric losses, stable behavior over frequency, and good suitability for pulse, timing, coupling, snubber, and general high-voltage DC applications.
| Attribute | KEMET F461AP563K630R Engineering Relevance |
|---|---|
| Capacitance | 0.056 µF, suitable for filtering, coupling, timing, and pulse-shaping functions |
| Tolerance | ±10%, usually acceptable where exact capacitance is not tightly controlling circuit accuracy |
| Dielectric | Polypropylene film, preferred where low loss and stable AC behavior are needed |
| Voltage Rating | 630 VDC class, replacement should not use a lower voltage rating without circuit stress analysis |
| Mounting Style | Radial leaded, affects PCB hole spacing, clearance, and assembly process |
| Packaging | Tape & Box, relevant for automated or semi-automated production handling |
| Compliance | RoHS3 compliant, REACH unaffected, useful for regulated product builds |
| MSL | Not applicable, typical for film capacitors and favorable for storage handling |
In replacement selection, the voltage rating and dielectric type often narrow the candidate list first. A polyester film capacitor with the same capacitance and voltage rating may fit physically, but it can show higher dielectric loss and different temperature behavior. For circuits involving pulse currents, high-frequency ripple, snubber operation, or resonant energy transfer, a polypropylene replacement is generally the more appropriate comparison path.
Typical applications for the KEMET F461AP563K630R include DC-link auxiliary filtering, high-voltage coupling, timing networks, pulse shaping, power supply filtering, lighting electronics, industrial control boards, and snubber-type positions where a small-value high-voltage film capacitor is required.
Engineering Review of F461AP563K630R Equivalent and Alternative Part Numbers
The following table compares practical replacement candidates for the KEMET F461AP563K630R. Each candidate should be confirmed against the latest manufacturer datasheet before approval, especially for dimensions, lead spacing, RMS current, peak current, and operating temperature.
| Manufacturer | Part Number | Key Specifications | Product Features | Typical Applications | Why It Can Replace the Original Part | Main Differences or Limitations | Recommended Usage |
|---|---|---|---|---|---|---|---|
| TDK / EPCOS | B32652A6563K000 | 0.056 µF, 630 VDC class, ±10%, metallized polypropylene film, radial leaded | Low-loss MKP construction, suitable for pulse and high-frequency operation, established industrial film capacitor family | Snubber circuits, switched-mode power supplies, lighting ballast circuits, industrial electronics | Matches the main capacitance, voltage class, tolerance, dielectric type, and radial mounting concept of KEMET F461AP563K630R | Mechanical dimensions and lead pitch may differ; pulse-current rating should be checked for snubber or switching applications | Strong candidate where electrical equivalence and industrial availability are priorities |
| Panasonic |
ECW-F6563JL
Panasonic Electronic Components
CAP FILM 0.056UF 5% 630VDC RAD
35402
| 0.056 µF, 630 VDC class, polypropylene film, radial leaded, commonly tighter tolerance option depending on suffix | Stable polypropylene dielectric, good high-frequency characteristics, well-known film capacitor platform | Coupling, timing, high-voltage filtering, low-loss AC signal paths, compact power electronics | Same nominal capacitance and voltage class with polypropylene behavior suitable for many F461AP563K630R applications | If tolerance differs from ±10%, circuit impact should be reviewed; body size may not match the KEMET footprint | Suitable where tighter capacitance control or Panasonic sourcing preference is acceptable |
| Vishay | MKP1848C55630JK2 | 0.056 µF, 630 VDC class, metallized polypropylene, radial leaded | Robust MKP construction, good self-healing behavior, suitable for demanding electronic circuits | Pulse circuits, power conversion support networks, filtering, coupling, industrial electronics | Comparable capacitance, voltage class, dielectric family, and radial through-hole format | Lead spacing, ripple-current capability, and exact package code must be verified against PCB layout | Appropriate for designs needing a polypropylene film capacitor from a broad industrial supplier |
| WIMA | MKP2C025601F00KSSD | 0.056 µF class, high-voltage polypropylene film, radial leaded | Compact MKP film capacitor construction, low dielectric loss, good stability | Signal coupling, filtering, timing, pulse-related networks, power control boards | Provides the same functional capacitor type: polypropylene radial film in the 0.056 µF / high-voltage range | WIMA coding and case size options require careful confirmation; not always a direct mechanical substitute | Useful when compact film capacitor geometry or European supply chain sourcing is preferred |
Among these alternatives, TDK / EPCOS B32652A6563K000 is often the closest engineering-style comparison because it aligns with the same capacitance, voltage class, tolerance, and polypropylene radial construction. Panasonic
ECW-F6563JL
may be attractive where tighter capacitance tolerance is acceptable or desired. Vishay MKP1848C55630JK2 and WIMA MKP2C025601F00KSSD should be reviewed where supplier diversification, package availability, or board-space constraints influence the decision.
ECW-F6563JL
Panasonic Electronic Components
CAP FILM 0.056UF 5% 630VDC RAD
35402
Comparing KEMET F461AP563K630R Replacement Options by Design Trade-Off
A replacement capacitor must be evaluated in the context of the circuit function. A coupling capacitor may tolerate more dimensional variation than a snubber capacitor. A timing network may be more sensitive to tolerance. A compact PCB may reject an otherwise electrically suitable part because of lead pitch or body height.
| Evaluation Factor | TDK / EPCOS B32652A6563K000 | Panasonic ECW-F6563JL | Vishay MKP1848C55630JK2 | WIMA MKP2C025601F00KSSD |
|---|---|---|---|---|
| Electrical Compatibility | Strong match to F461AP563K630R for capacitance, voltage, dielectric, and tolerance class | Good match electrically; tolerance may be tighter depending on ordering suffix | Good match for polypropylene high-voltage applications | Good functional match if exact voltage and tolerance variant is confirmed |
| Mechanical Compatibility | Requires lead pitch and body-size verification before PCB approval | May differ in case dimensions; check height and lead spacing | Package code must be matched to PCB clearance and creepage needs | Often compact, but exact WIMA case size must be reviewed |
| Performance Differences | Well-suited for pulse and switching environments when current ratings align | Stable low-loss behavior; may offer tighter capacitance control | Robust industrial MKP behavior with good self-healing characteristics | Compact MKP option with low dielectric loss |
| Reliability Considerations | Industrial-grade film capacitor family; suitable for long production designs when sourced correctly | Panasonic film capacitors are widely used in stable production platforms | Vishay MKP capacitors are suitable for demanding general-purpose and pulse-related circuits | WIMA parts are commonly selected for stable film capacitor applications |
| Package Availability | Often available in multiple lead spacings and case sizes depending on distributor stock | Availability depends on exact suffix and regional inventory | Multiple package variants may exist; suffix accuracy matters | Availability may vary by capacitance, voltage, and lead style |
| Cost Considerations | Usually competitive for industrial-volume replacement programs | May cost more if tighter tolerance or specific suffix is required | Cost depends on package and sourcing channel | May be competitive for compact designs but should be quoted against exact code |
| Best-Fit Scenario | Closest general replacement path for KEMET F461AP563K630R where ±10% tolerance is acceptable | Good choice for circuits benefiting from stable polypropylene behavior and possibly tighter tolerance | Suitable when supplier qualification favors Vishay or when robust MKP construction is preferred | Suitable when space constraints or WIMA sourcing preference guide the selection |
| Main Limitation | Not automatically pin-compatible; mechanical check required | Tolerance change can affect timing or filter frequency in sensitive circuits | Exact suffix must be controlled to avoid dimensional mismatch | Part-code verification is needed to avoid selecting a different case or voltage version |
For most replacement reviews, the first filter should be capacitance, voltage rating, dielectric type, and tolerance. The second filter should be mechanical fit: lead pitch, body width, body height, creepage distance, and assembly compatibility. The final filter should address application stress, including ripple current, pulse current, operating temperature, and expected lifetime.
If the F461AP563K630R is used in a low-stress coupling or filtering position, several polypropylene radial film alternatives may be acceptable after PCB fit verification. If it is used in a snubber, resonant, or fast-switching circuit, pulse-current capability and dv/dt rating should be compared before approval.
For quotations and sourcing support for KEMET F461AP563K630R replacement parts, equivalent capacitors, or alternative part numbers such as B32652A6563K000,
ECW-F6563JL
, MKP1848C55630JK2, and MKP2C025601F00KSSD, obtain pricing through IC-Components.com or email Info@IC-Components.com.
ECW-F6563JL
Panasonic Electronic Components
CAP FILM 0.056UF 5% 630VDC RAD
35402
