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Home > Products > Capacitors > Ceramic Capacitors > C0402C180M8RACTU
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C0402C180M8RACTU

In Stock 1213815 pcs Reference Price(In US Dollars)
10000+
$0.0189
Manufacturer Part Number:
C0402C180M8RACTU
Manufacturer / Brand
KEMET
Part of Description:
CAP CER 0402
Datasheets:
C0402C180M8RACTU(1).pdfC0402C180M8RACTU(2).pdf
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 1213815 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number C0402C180M8RACTU
Manufacturer / Brand KEMET
Stock Quantity 1213815 pcs Stock
Category Capacitors > Ceramic Capacitors
Description CAP CER 0402
Lead Free Status / RoHS Status: RoHS Compliant
Series *
Package Tape & Reel (TR)
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.

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Company Name : IC COMPONENTS LTD
Paypal ID: PayPal@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 are the key design considerations when integrating the KEMET C0402C180M8RACTU as a decoupling capacitor near high-speed digital IC power pins on a dense PCB?
The KEMET C0402C180M8RACTU in the 0402 package offers low parasitic inductance, which supports effective high-frequency noise suppression in decoupling applications. Placement within 1-2 mm of the IC pin, with short and wide traces or vias to power and ground planes, minimizes loop inductance. Due to the X7R dielectric, engineers should evaluate effective capacitance under the specific DC bias voltage, as Class II MLCCs exhibit voltage-dependent reduction that can shift the self-resonant frequency.
How does the 10V rating of the KEMET C0402C180M8RACTU influence power supply selection and derating in low-voltage digital circuits?
In circuits operating at 3.3V or 5V rails, the 10V rating of the KEMET C0402C180M8RACTU provides headroom against transients, but X7R dielectrics still experience capacitance reduction under applied DC bias. Designers typically apply voltage derating guidelines based on the manufacturer’s DC bias curves to ensure the remaining effective capacitance meets the required filtering performance over the operating voltage range.
Can the KEMET C0402C180M8RACTU be used for RF signal coupling or filtering applications, and what boundaries apply?
The KEMET C0402C180M8RACTU suits bypass and decoupling roles where moderate temperature stability is acceptable, but in RF coupling or precision filtering, the ±20% tolerance and X7R capacitance variation with temperature (-55°C to 125°C) and DC bias may introduce non-linear behavior. For applications demanding tighter stability, C0G/NP0 alternatives in the same 0402 footprint are often evaluated.
What practical differences arise when considering migration from a C0G 18pF 0402 capacitor to the KEMET C0402C180M8RACTU X7R version?
Switching to the KEMET C0402C180M8RACTU provides higher volumetric efficiency typical of X7R but introduces greater capacitance variation with temperature (±15% over the range) and applied voltage compared to C0G. This trade-off affects timing-critical or filter circuits where phase or frequency response sensitivity exists, requiring simulation or measurement of the specific circuit response.
How does aging affect long-term capacitance in the KEMET C0402C180M8RACTU when deployed in industrial equipment with extended service life?
Like other X7R MLCCs, the KEMET C0402C180M8RACTU experiences logarithmic capacitance loss over time at roughly 2.5% per decade hour after the last thermal excursion above the Curie point. In industrial scenarios running continuously for years, this behavior leads designers to incorporate margin in initial capacitance selection or plan for periodic reflow effects during maintenance to partially reset the dielectric.
What board-level mechanical and thermal constraints should be reviewed when using the KEMET C0402C180M8RACTU in surface-mount assemblies exposed to temperature cycling?
The small 0402 footprint of the KEMET C0402C180M8RACTU reduces thermal mass and mechanical stress during reflow, but in assemblies with significant CTE mismatch between the PCB and components under repeated -55°C to 125°C cycling, solder joint integrity requires attention to pad design, stencil thickness, and underfill where vibration or shock is also present.
When replacing an older 18pF X7R MLCC from another manufacturer with the KEMET C0402C180M8RACTU, what factors determine drop-in compatibility?
The KEMET C0402C180M8RACTU shares the standard 0402 (1005 Metric) dimensions and X7R characteristics, enabling footprint compatibility in most cases. However, differences in internal electrode structure or termination materials across brands can subtly affect ESR, ESL, or DC bias behavior, so verification through impedance measurements or circuit-level testing is common practice before full qualification.
In what scenarios might the 18pF value and X7R dielectric of the KEMET C0402C180M8RACTU be less suitable for power rail decoupling compared to higher capacitance parts?
For bulk or mid-frequency decoupling on power rails, the 18pF value of the KEMET C0402C180M8RACTU primarily targets very high-frequency noise; combining it with larger capacitance MLCCs (such as 0.1µF or 1µF in similar or slightly larger packages) extends the effective frequency range of impedance suppression, as a single small-value part becomes inductive above its self-resonant frequency.
How should engineers account for moisture sensitivity and handling when incorporating the KEMET C0402C180M8RACTU into high-reliability production flows?
The KEMET C0402C180M8RACTU has an MSL rating of 1 (unlimited), allowing standard floor life without special dry-pack precautions in most assembly environments. Still, prolonged exposure to high humidity before reflow can influence solderability, so adherence to standard SMT process controls remains part of reliable manufacturing.
What clocking or timing circuit considerations apply when using the KEMET C0402C180M8RACTU in oscillator or PLL bypass positions?
In oscillator or PLL bypass roles, the temperature and voltage coefficients of the KEMET C0402C180M8RACTU X7R dielectric can contribute to minor shifts in effective capacitance that influence jitter or frequency stability. Engineers often model these variations across the full operating temperature and supply range to confirm they remain within system margins.

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