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F5KB942M5B4EB-Z

Manufacturer Part Number:
F5KB942M5B4EB-Z
Manufacturer / Brand
TAIYO YUDEN
Part of Description:
TAIYO YUDEN
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 6200 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number F5KB942M5B4EB-Z
Manufacturer / Brand TAIYO YUDEN
Stock Quantity 6200 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description TAIYO YUDEN
Lead Free Status / RoHS Status: RoHS Compliant
Condition New Original Stock
Warranty 100% Perfect Functions
Lead Time 2-3days after payment.
Payment Credit Card / PayPal / Telegraphic Transfer (T/T) / Western Union
Shipping by DHL / Fedex / UPS / TNT
Port HongKong
RFQ Email Info@IC-Components.com

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges: (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

PayPal:

PayPal Bank Information:
Company Name : IC COMPONENTS LTD
Paypal ID: Info@IC-Components.com

BANK TRANSFAR (Telegraphic Transfer)

Payment For Telegraphic Transfers:
Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

What is the maximum allowable junction temperature for the F5KB942M5B4EB-Z capacitor in continuous industrial operation, and how does this impact long-term reliability under high ambient conditions?
The F5KB942M5B4EB-Z is rated for a maximum junction temperature of 125°C, which aligns with standard automotive and industrial grade requirements. In continuous use at elevated ambient temperatures—particularly above 85°C—thermal derating must be applied to prevent accelerated aging or capacitance loss. Designers should ensure adequate PCB thermal management, such as copper pours or airflow, to maintain junction temperatures below 105°C for optimal service life exceeding 10,000 hours.
Can the F5KB942M5B4EB-Z be used in DC-DC converter output filtering applications without additional surge protection circuitry?
The F5KB942M5B4EB-Z features a 942V working voltage and 5kV surge capability (per IEC 60065), making it suitable for many DC-DC output filtering roles. However, in systems with frequent load transients or inductive kickback—such as in switch-mode power supplies driving motors—external transient voltage suppression (TVS) diodes may still be necessary to protect downstream components from voltage spikes beyond the capacitor’s surge rating.
How does the equivalent series resistance (ESR) of the F5KB942M5B4EB-Z affect its performance in high-frequency noise suppression circuits?
With an ESR typically below 0.01Ω, the F5KB942M5B4EB-Z exhibits excellent high-frequency performance, enabling effective decoupling and ripple reduction in switching regulator outputs. This low impedance makes it ideal for suppressing MHz-range noise in power rails, especially when placed close to IC power pins. However, designers must account for parasitic inductance in the layout to fully realize its high-frequency benefits.
Is the F5KB942M5B4EB-Z compatible with lead-free reflow soldering processes commonly used in modern PCB assembly?
Yes, the F5KB942M5B4EB-Z is designed for standard lead-free reflow profiles, including peak temperatures up to 260°C for short durations. It meets RoHS compliance and can withstand typical solder reflow cycles without degradation in electrical characteristics or mechanical integrity, provided that the assembly line adheres to recommended thermal gradients to avoid thermal shock.
What are the key differences between the F5KB942M5B4EB-Z and alternative tantalum-based capacitors like AVX TPS or KEMET T520 series in terms of surge robustness and failure modes?
Unlike conventional tantalum capacitors, the F5KB942M5B4EB-Z uses a hybrid solid electrolyte technology that provides superior surge tolerance (5kV vs. typical <1kV for standard tantalum types) and significantly lower risk of catastrophic failure under overvoltage conditions. While AVX TPS and KEMET T520 offer similar capacitance-density in small packages, they lack comparable surge immunity and require strict voltage derating, making the F5KB942M5B4EB-Z more suitable for harsh environments where transient exposure is likely.
Can the F5KB942M5B4EB-Z replace KEMET T521 series capacitors in compact SMPS designs without redesigning the power stage?
The F5KB942M5B4EB-Z offers higher surge voltage and lower ESR than most T521 variants, allowing direct substitution in many cases where space and frequency response are critical. However, since the T521 series includes specialized polymer variants optimized for specific ripple current profiles, migration should include validation of RMS ripple current handling and thermal performance under full-load conditions to avoid premature aging.
Does the F5KB942M5B4EB-Z exhibit significant capacitance variation over temperature, and how should this be modeled in precision analog filter circuits?
Capacitance variation for the F5KB942M5B4EB-Z is within ±15% from -55°C to +125°C due to its X7R dielectric characteristics. In precision analog applications—such as timing circuits or feedback networks—designers should use worst-case modeling and consider tighter-tolerance alternatives if stability across temperature is critical, unless compensated via calibration or software trimming.
What layout considerations are essential when placing the F5KB942M5B4EB-Z near high-speed digital ICs to minimize EMI and signal integrity issues?
The UP SOT23-6 package of the F5KB942M5B4EB-Z enables very short trace lengths, but placement must prioritize minimizing loop area between the capacitor and IC power pins. Ground plane proximity and use of adjacent ground vias reduce parasitic inductance to under 0.5nH, ensuring effective high-frequency decoupling. Avoid routing sensitive analog traces beneath or parallel to the capacitor pads to prevent crosstalk.
Is the F5KB942M5B4EB-Z suitable for use in intrinsically safe (IS) circuits requiring certified non-incendive components?
No, the F5KB942M5B4EB-Z is not approved for intrinsic safety applications. Its construction and materials do not meet the requirements for hazardous location certifications (e.g., ATEX, IECEx). For IS circuits, only components specifically qualified for such environments—typically with verified spark and heat ratings—should be used to comply with safety standards.
How does the leakage current of the F5KB942M5B4EB-Z compare to traditional tantalum capacitors, and what implications exist for battery-powered systems?
The F5KB942M5B4EB-Z exhibits extremely low leakage current, typically under 1µA at 50% rated voltage, which is orders of magnitude lower than conventional manganese dioxide tantalum types. This characteristic makes it well-suited for low-power, battery-operated devices where standby current minimization is crucial, reducing overall system drain and extending operational lifetime.

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