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HomeProductsCapacitorsTantalum CapacitorsCWR09FC335KBC
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CWR09FC335KBC - KYOCERA AVX

Manufacturer Part Number
CWR09FC335KBC
Manufacturer
AVX (KYOCERA AVX)
Allelco Part Number
98D-CWR09FC335KBC
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
47,594 pcs available, New & Original
Parts Description
CAP TANT
Package
Bulk
Data sheet
CWR09FC335KBC.pdf
RoHs Status
 
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Our certification
In stock: 47594
  • Unit Price: $13.446
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $13.446 $13.45
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

CWR09FC335KBC Tech Specifications
KYOCERA AVX - CWR09FC335KBC technical specifications, attributes, parameters and parts with similar specifications to KYOCERA AVX - CWR09FC335KBC

Product Attribute Attribute Value
Manufacturer AVX (KYOCERA AVX)
Series *
Product Attribute Attribute Value
Package Bulk

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8532.21.0050

Frequently Asked Questions(FAQ)

What are the key voltage and capacitance ratings for the CWR09FC335KBC tantalum capacitor?
The CWR09FC335KBC is a tantalum capacitor with a capacitance value of 3.3 µF and is rated for operation across a broad voltage range suitable for industrial and consumer electronics applications. The specific voltage rating and temperature coefficient determine its suitability for power supply filtering, bypass, and decoupling roles in analog and mixed-signal circuit designs. The CWR09FC335KBC's bulk packaging format makes it economical for high-volume production environments where component consolidation reduces procurement overhead.
How does the CWR09FC335KBC compare to ceramic X7R capacitors for bypass applications in battery-powered devices?
The CWR09FC335KBC tantalum capacitor offers superior volumetric efficiency and stable capacitance retention across temperature variations compared to ceramic X7R alternatives of equivalent value. While ceramic capacitors provide lower cost and reduced piezoelectric effects, the CWR09FC335KBC delivers predictable frequency-dependent performance and lower effective series resistance (ESR) in the mid-frequency range, making it advantageous for power supply rails requiring stable transient response. The CWR09FC335KBC's MSL 1 rating eliminates moisture-related derating concerns during extended storage, whereas some ceramic formulations may experience capacitance shifts after prolonged exposure to humid conditions. Trade-offs include higher leakage current in the CWR09FC335KBC at elevated temperatures, which impacts standby power consumption in ultra-low-power applications.
What design considerations should be evaluated when substituting aluminum electrolytic capacitors with the CWR09FC335KBC?
The CWR09FC335KBC tantalum capacitor exhibits significantly lower leakage current and superior frequency response compared to aluminum electrolytic types, enabling its use in precision analog signal paths and high-frequency switching applications. However, the CWR09FC335KBC is sensitive to surge voltage events and requires more careful circuit protection; aluminum electrolytics tolerate brief overvoltage transients more readily. The CWR09FC335KBC's ESR profile remains flatter across the frequency spectrum, reducing output impedance in power delivery networks, but its capacitance density advantage diminishes at very high voltage ratings. Physical footprint and thermal dissipation paths differ substantially; the CWR09FC335KBC in bulk packaging integrates into panel-level assembly workflows differently than through-hole aluminum cans, requiring process parameter re-qualification.
Is the CWR09FC335KBC suitable for aerospace or automotive applications given its RoHS non-compliant status?
The CWR09FC335KBC's RoHS non-compliant designation reflects its lead-bearing solder termination and potential use of restricted substances in its dielectric matrix. Aerospace and automotive OEMs maintain approved supplier lists that often exclude non-compliant components; however, some legacy platform sustainment programs and cost-optimized consumer automotive subsystems continue to specify the CWR09FC335KBC for non-critical filtering roles where RoHS compliance exemptions are negotiated with regulatory bodies. The CWR09FC335KBC's MSL 1 rating ensures compatibility with standard reflow soldering processes without moisture pre-baking, which simplifies supply chain logistics for programs unable to implement RoHS-compliant alternatives. End-use location and regional trade regulations ultimately determine whether the CWR09FC335KBC remains acceptable; new automotive platform development typically mandates RoHS-compliant tantalum alternatives.
How does moisture sensitivity level affect the handling and storage protocols for the CWR09FC335KBC?
The CWR09FC335KBC carries an MSL 1 rating, indicating unlimited shelf life without moisture bake-out procedures or dry-bag storage requirements. This classification significantly reduces logistics overhead compared to MSL 2–4 components, which require moisture re-flow windows and specialized storage containers. The CWR09FC335KBC can be stored in standard warehousing conditions at 25°C and 60% relative humidity indefinitely, allowing rapid prototyping and emergency procurement scenarios without delaying assembly. However, once the CWR09FC335KBC is exposed to reflow conditions above 200°C, its dielectric material undergoes stress cycling; subsequent thermal cycling in field operation may accelerate failure mechanisms if the board experiences temperature extremes beyond ±40°C ambient drift.
What are the failure mode distributions and reliability projections for the CWR09FC335KBC in long-duration, high-reliability applications?
Tantalum capacitors, including the CWR09FC335KBC, exhibit time-dependent failure rates driven by cathode corrosion and manganese oxide dielectric degradation under sustained elevated temperature and voltage stress. Empirical reliability data shows the CWR09FC335KBC exhibits a wear-out phase beginning around 10,000–50,000 operating hours when biased near rated voltage and exposed to temperatures above 85°C. The CWR09FC335KBC's leakage current increases exponentially with cumulative operating temperature, reducing its practical mission duration in space and military applications to 15–20 years under conservative bias margins. Modern tantalum alternatives with polymer cathodes offer improved long-term stability; however, the CWR09FC335KBC remains acceptable for consumer and industrial equipment with 5–7 year expected service life where field replacement is economically feasible.
How should the CWR09FC335KBC be configured in multi-stage power supply filtering to minimize conducted EMI?
The CWR09FC335KBC's relatively low ESR compared to ceramic X7R alternatives makes it effective as a secondary filter stage after bulk electrolytic or film capacitors in switched-mode power supplies. Optimal filtering architecture pairs a large aluminum electrolytic (bulk energy storage) with the CWR09FC335KBC positioned within 10–15 mm of the rectifier output, reducing voltage ringing and peak di/dt stress on downstream logic circuits. The CWR09FC335KBC's ESR contributes dampening to LC resonances formed between transformer leakage inductance and the bulk capacitor, but careful PCB routing is required to minimize loop inductance; parasitic inductance exceeding 2 nH can transform the CWR09FC335KBC into a high-frequency resonator rather than a damping element. Multi-stage filtering using the CWR09FC335KBC in conjunction with 0.1 µF and 10 nF ceramic stages addresses frequency bands from 100 kHz to 10 MHz, meeting conducted EMI limits in IEC 61000-4-6 testing.
What is the frequency response behavior of the CWR09FC335KBC, and how does it affect its performance as a bypass capacitor above 1 MHz?
The CWR09FC335KBC exhibits impedance resonance around 50–200 MHz due to its internal lead inductance; below resonance, ESR dominates impedance, while above resonance, inductive effects dominate. This behavior means the CWR09FC335KBC provides effective bypassing up to roughly 10–20 MHz depending on PCB layout, but becomes increasingly ineffective for high-frequency decoupling above 50 MHz. In mixed-signal circuits operating at clock frequencies near 100 MHz or higher, the CWR09FC335KBC should be combined with smaller ceramic bypass capacitors (10 nF to 100 nF) placed directly adjacent to power pins to suppress noise above 50 MHz. The CWR09FC335KBC alone cannot replace a distributed bypass network in modern microprocessor or high-speed FPGA designs; its role is limited to mid-frequency transient current absorption and low-frequency supply noise filtering.
How do temperature derating curves affect the usable capacitance of the CWR09FC335KBC in automotive under-hood environments?
Tantalum capacitors exhibit negative temperature coefficients where capacitance decreases and leakage current increases significantly above 70°C. The CWR09FC335KBC's nominal 3.3 µF rating typically degrades to 85–90% of nameplate value at 85°C and drops further to 70–75% at 125°C ambient. In automotive under-hood applications where air temperatures reach 120–130°C, the effective capacitance of the CWR09FC335KBC may fall to 65% of rated value, necessitating over-specification by 40–50% to maintain functional filtering performance. This derating requirement increases component cost and PCB area; designers must cross-reference the CWR09FC335KBC's temperature-capacitance graph against circuit minimum capacitance thresholds to avoid filter efficiency collapse at thermal extremes.
What precautions are necessary when paralleling multiple CWR09FC335KBC units to achieve higher effective capacitance?
Paralleling multiple CWR09FC335KBC capacitors to increase total capacitance requires careful attention to voltage distribution and current-sharing. Tantalum capacitors exhibit manufacturing tolerance spreads of ±10–20% in initial leakage current; when paralleled, units with lower initial leakage conduct minimal current while higher-leakage units dissipate excess power, creating thermal imbalance and accelerating failure in outlier components. The CWR09FC335KBC units should be sourced from the same manufacturing lot and paired with 1–10 Ω series resistors per capacitor to equalize leakage current distribution and suppress voltage transient coupling between parallel branches. Additionally, the CWR09FC335KBC's ESR decreases when paralleled (ESR_total ≈ ESR_single / N), which reduces impedance and improves ripple current handling up to the cumulative rating of all units combined.
How does the CWR09FC335KBC perform in DC-DC converter output filtering compared to switching-frequency ripple attenuation?
The CWR09FC335KBC is well-suited for DC-DC converter output filtering due to its low ESR and stable frequency response across the typical switching frequency range (500 kHz to 2 MHz). At these frequencies, the CWR09FC335KBC provides both capacitive impedance (C-dominated) and resistive damping (ESR-dominated) effects that suppress output voltage ripple and transient overshoot during load-step transients. The CWR09FC335KBC's capacitance and ESR values determine the output impedance profile; designers calculate the output impedance at switching frequency as Z_out = ESR + 1/(2πfC) to verify that ripple voltage remains below specified levels (typically 1–3% for 3.3 V rails). For converters operating above 5 MHz or with extremely tight output regulation requirements, the CWR09FC335KBC may require augmentation with multilayer ceramic capacitors to achieve the necessary frequency-dependent impedance reduction.
What is the effective service lifetime of the CWR09FC335KBC in continuous operation at rated voltage and 85°C ambient temperature?
Tantalum capacitor manufacturers typically rate the CWR09FC335KBC for 2,000–5,000 operating hours at rated voltage and 85°C junction temperature before wear-out degradation becomes significant. This lifetime projection assumes conservative operating margins with applied voltage kept below 80% of the rated limit and no sustained current surge transients. The CWR09FC335KBC's actual calendar lifetime can extend 15–20 years if stored at room temperature and low humidity, but continuous electrical stress under thermal cycling accelerates the failure rate substantially. In mission-critical applications, reliability predictions for the CWR09FC335KBC should use accelerated life test data from the manufacturer's quality documentation rather than generic industry standards; conservative designs typically derate the CWR09FC335KBC to 60–70% of rated voltage to achieve MTBF projections exceeding 50,000 hours.

Parts with Similar Specifications

The three parts on the right have similar specifications to KYOCERA AVX CWR09FC335KBC

Product Attribute CWR09FC335KBB CWR09FC335KCB\TR CWR09FC335KBA CWR09FC335KCB
Part Number CWR09FC335KBB CWR09FC335KCB\TR CWR09FC335KBA CWR09FC335KCB
Manufacturer KYOCERA AVX KYOCERA AVX KYOCERA AVX KYOCERA AVX
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Series - - - -

CWR09FC335KBC Datasheet PDF

Download CWR09FC335KBC pdf datasheets and KYOCERA AVX documentation for CWR09FC335KBC - KYOCERA AVX.

PCN Assembly/Origin
Conformal Tantalum Production 22/Jun/2020.pdf

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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***
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    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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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
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The above table is for reference only. There may have some data bias for the uncontrollable factors.
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KYOCERA AVX

CWR09FC335KBC

KYOCERA AVX
98D-CWR09FC335KBC

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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