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HomeProductsCapacitorsFilm CapacitorsF611BB224J250Z
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F611BB224J250Z - KEMET

Manufacturer Part Number
F611BB224J250Z
Manufacturer
KEMET
Allelco Part Number
98D-F611BB224J250Z
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
44,516 pcs available, New & Original
Parts Description
CAP FILM POLYESTER RAD
Package
Tape & Box (TB)
Data sheet
F611BB224J250Z.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 44516
  • Unit Price: $0.292
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.292 $0.29
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

F611BB224J250Z Tech Specifications
KEMET - F611BB224J250Z technical specifications, attributes, parameters and parts with similar specifications to KEMET - F611BB224J250Z

Product Attribute Attribute Value
Manufacturer KEMET
Series *
Product Attribute Attribute Value
Package Tape & Box (TB)

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) Not Applicable
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8532.25.0070

Frequently Asked Questions(FAQ)

What are the voltage and capacitance ratings of the KEMET F611BB224J250Z, and how do these specifications affect PCB layout decisions?
The F611BB224J250Z is rated for 250V DC at 0.22µF capacitance with a 5% tolerance. The 250V rating provides adequate margin for AC mains filtering and industrial power supply applications, while the 0.22µF value positions this capacitor in the mid-range for noise suppression and EMI filtering circuits. The 15mm lead spacing requires PCB traces spaced accordingly to prevent creepage violations, and the relatively large 18mm length × 10mm width footprint means designers must allocate sufficient board real estate in retrofit or space-constrained designs.
How does the temperature operating range of the F611BB224J250Z compare to electrolytic capacitors, and when should metallized polyester film be chosen instead?
The F611BB224J250Z operates from −55°C to +105°C, which is typical for film capacitors but narrower than some electrolytic types rated to −40°C or higher. However, the F611BB224J250Z's metallized polyester film construction offers superior ripple current handling, lower equivalent series resistance (ESR), and better stability across temperature extremes compared to aluminum electrolytics in the same voltage class. Choose the F611BB224J250Z for filtering, AC coupling, or snubbing circuits where reliability and low distortion matter more than compact size; use electrolytics where high capacitance density is mandatory and temperature stability is less critical.
Why is the 5% tolerance specification on the F611BB224J250Z significant for analog filter design?
The ±5% tolerance on the F611BB224J250Z means the actual capacitance can range from 0.209µF to 0.231µF. In active filter designs with Q-dependent responses (such as bandpass or notch filters), this tolerance directly affects center frequency and gain peaking. For example, a corner frequency calculated as 72.3kHz may drift to ±3.6% depending on the specific F611BB224J250Z unit installed. Critical designs require either hand-selecting capacitors, using adjustable components, or accepting broader filter bandwidth. For general-purpose RC filters and bypass applications, the 5% tolerance is typically non-problematic.
Can the F611BB224J250Z be used in high-frequency switching power supplies, or is it limited to lower-frequency AC filtering?
The F611BB224J250Z, as a metallized polyester film capacitor, is optimized for frequencies up to approximately 1–10kHz due to its construction and lead inductance. Using the F611BB224J250Z in switching supplies operating at 100kHz or higher would result in excessive ESR losses and thermal stress; ripple current capability would be exceeded quickly. Instead, reserve the F611BB224J250Z for input prefiltering ahead of the switching stage, mains EMI suppression, or low-frequency bulk energy storage. For high-frequency power supply output filtering and snubbing networks, use ceramic capacitors (low ESR, high-frequency response) or specialized film capacitors designed for switching duty.
What is the actual lead spacing tolerance of the F611BB224J250Z, and how tight should PCB hole tolerances be for reliable insertion?
The F611BB224J250Z specifies 15mm lead spacing (center-to-center). Lead straightness and spacing typically carry a tolerance of ±0.5mm from manufacturer specifications. PCB hole spacing should be designed as 15.0mm ±0.2mm to ensure the leads of the F611BB224J250Z seat firmly without excessive play or mechanical stress. When designing for automated insertion equipment, allow ±0.1mm hole position accuracy; manual insertion tolerates slightly looser spacing. Verify the final PCB vendor drawing against the actual lead pitch of sample F611BB224J250Z units, as lead-forming dies can drift slightly over production runs.
How does the F611BB224J250Z perform in DC bias applications compared to its AC rating?
The 250V DC rating of the F611BB224J250Z is the absolute maximum continuous voltage. However, under DC bias, capacitance decreases slightly and leakage current increases. With 250V DC applied continuously to the F611BB224J250Z, expect approximately 3–5% capacitance loss over time and leakage current in the microampere range (depending on temperature and dielectric aging). For AC applications with DC offset (such as mains filtering at 230V AC with 0–20V DC bias), the F611BB224J250Z operates well within safe margins. Reserve full 250V DC operation for intermittent fault conditions or short-duration transient suppression; for continuous DC service above 150V, derate or use higher-voltage rated alternatives.
Is the F611BB224J250Z suitable for direct replacement in legacy equipment, and what compatibility checks are necessary?
The F611BB224J250Z's radial lead configuration and 15mm pitch match many older film capacitor footprints, making mechanical replacement straightforward. However, verify polarity requirements (film capacitors are non-polar, so the F611BB224J250Z can be installed either direction), voltage rating adequacy, and operating frequency range before substitution. Examine the original part's lead diameter and PCB hole size; the F611BB224J250Z uses standard 0.8mm leads, but some vintage equipment may have 0.6mm or 1.0mm holes. If replacing capacitors in a mains filter or power supply input stage, confirm the F611BB224J250Z's temperature and ripple current performance match or exceed the original specification to avoid thermal runaway in confined spaces.
What is the failure mode of the F611BB224J250Z under overvoltage, and how should transient protection be designed?
The F611BB224J250Z exhibits gradual capacitance loss and increased leakage as overvoltage is applied above 250V; catastrophic failure (short circuit) typically occurs only at severe overstress (>350V continuous or fast transients >400V). The metallized polyester film construction of the F611BB224J250Z is self-healing to a degree—if a thin-film defect is arced by voltage stress, the metallization vaporizes locally and isolates the defect, allowing the capacitor to remain functional. However, repeated transients damage the F611BB224J250Z cumulatively. Protect the F611BB224J250Z with series impedance (inductors in AC lines) or parallel clamp circuits (MOVs or transient suppressors rated for 350V+) if transient spikes above 300V are anticipated.
How should the F611BB224J250Z be selected and mounted to minimize audible noise in audio equipment?
The F611BB224J250Z's metallized polyester film is inherently stable and exhibits minimal piezoelectric effects compared to ceramic or electrolytic types, making it suitable for audio applications. However, the radial lead configuration and relatively rigid straight leads of the F611BB224J250Z can couple vibration into the PCB if mounted directly to high-noise areas (near power transformers or cooling fans). Use small elastomeric standoffs or potting to mechanically isolate the F611BB224J250Z in sensitive analog signal paths. Ensure the mounting PCB itself is isolated from vibration sources, and route signal traces away from the F611BB224J250Z lead paths to minimize electromagnetic coupling of any residual AC ripple into low-level audio circuits.
What is the expected lifetime and aging behavior of the F611BB224J250Z under normal operating conditions?
Under rated conditions (250V, +105°C max, low ripple current), the F611BB224J250Z is rated for approximately 10–20 years of reliable service with minimal capacitance drift (<5% total). Capacitance decreases gradually at a rate of roughly 0.5–1% per decade of hours at full temperature. If the F611BB224J250Z operates continuously at elevated temperature (e.g., +95°C in a poorly ventilated enclosure), aging accelerates roughly 2× per 10°C rise, reducing expected life to 5–10 years. At lower temperatures (+25°C ambient), the F611BB224J250Z can approach 30+ years service life. Monitor critical circuits using ESR or impedance-based predictive diagnostics if the F611BB224J250Z is in long-lived industrial equipment; capacitance loss below 85% of nominal may indicate replacement is warranted.
Can the F611BB224J250Z be paralleled to achieve higher capacitance or current handling, and what precautions are necessary?
Paralleling multiple F611BB224J250Z units increases total capacitance linearly and distributes ripple current across all branches, reducing thermal stress on any single component. However, manufacturing tolerances mean individual F611BB224J250Z units exhibit slightly different impedance; current redistribution may be unequal across parallel branches at high frequencies. To minimize uneven current sharing when paralleling the F611BB224J250Z, keep lead lengths equal, use identical trace lengths on the PCB, and minimize loop inductance by placing all F611BB224J250Z units close to each other. Avoid paralleling capacitors from different manufacturing lots or years, as the F611BB224J250Z's ESR and capacitance may drift differently over time, causing one unit to dominate current flow. For large parallel banks, insert small-value resistors (10–100 Ω) in series with each F611BB224J250Z to force current sharing.
What is the RoHS compliance status of the F611BB224J250Z, and are there any regulatory exemptions or secondary environmental concerns?
The F611BB224J250Z carries RoHS Y designation, confirming compliance with EU RoHS 2011/65/EU directives; lead solder, cadmium, mercury, and restricted phthalates are eliminated from the component. However, the F611BB224J250Z's polypropylene or polyester film dielectric itself is not classified as a restricted substance under RoHS, so the capacitor is suitable for use in consumer and industrial electronics destined for EU markets. Verify batch documentation if extreme traceability is required; KEMET maintains full supply chain certification for the F611BB224J250Z. No secondary recycling concerns specific to the F611BB224J250Z exist beyond standard e-waste protocols for mixed electronic components.
How does the F611BB224J250Z perform in humid or corrosive environments, and what conformal coating recommendations apply?
The F611BB224J250Z's metallized polyester film is inherently resistant to moisture ingress due to the sealed lead configuration and non-hygroscopic dielectric. In high-humidity environments (>85% RH), the primary failure risk is corrosion of the radial leads themselves rather than the capacitor dielectric. Bare copper leads on the F611BB224J250Z oxidize slowly in salt spray or industrial atmosphere, increasing contact resistance and ESR over years. Apply thin acrylic or urethane conformal coating to the F611BB224J250Z if operation in maritime, chemical plant, or outdoor environments is expected. Avoid thick potting compounds directly over the F611BB224J250Z body, as thermal cycling may cause interface delamination; instead, coat the entire PCB assembly uniformly to protect all leads equally.
What alternative film capacitor series from KEMET should be considered if the F611BB224J250Z does not meet performance requirements?
If the F611BB224J250Z's 250V rating is insufficient, KEMET offers higher-voltage film capacitors (F611 series extends to 630V or higher in other part numbers). If lower ESR is required, KEMET's R82 or R83 series metallized polypropylene capacitors provide superior high-frequency performance compared to the F611BB224J250Z, though at larger physical size and higher cost. If space is the constraint, consider ceramic X7R capacitors at 250V for smaller footprints, accepting trade-offs in temperature stability and dielectric absorption. Conversely, if cost is paramount and lower voltage suffices (e.g., 100V), KEMET's F841 or F931 series offer reduced-voltage film capacitor options. Consult KEMET's technical library or sales engineering team with your specific frequency, ripple current, and thermal requirements to identify the best alternative to the F611BB224J250Z.

Parts with Similar Specifications

The three parts on the right have similar specifications to KEMET F611BB224J250Z

Product Attribute F611BB224J250L F611BB224M250L F611BC334J250C F611BB223J630C
Part Number F611BB224J250L F611BB224M250L F611BC334J250C F611BB223J630C
Manufacturer KEMET KEMET KEMET KEMET
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

F611BB224J250Z Datasheet PDF

Download F611BB224J250Z pdf datasheets and KEMET documentation for F611BB224J250Z - KEMET.

Datasheets
F611, 612 Series.pdf F611BB224J250Z Spec.pdf

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Customer Reviews

Evaluation: 10 Articles

  • ECUb***h
    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
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    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
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    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
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New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
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KEMET

F611BB224J250Z

KEMET
98D-F611BB224J250Z

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