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Home > Products > Capacitors > Ceramic Capacitors > C0402C508C8HAC7867
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C0402C508C8HAC7867

In Stock 20000000 pcs Reference Price(In US Dollars)
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Manufacturer Part Number:
C0402C508C8HAC7867
Manufacturer / Brand
KEMET
Part of Description:
CAP CER 0.5PF 10V X8R 0402
Datasheets:
C0402C508C8HAC7867(1).pdfC0402C508C8HAC7867(2).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 20000000 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number C0402C508C8HAC7867
Manufacturer / Brand KEMET
Stock Quantity 20000000 pcs Stock
Category Capacitors > Ceramic Capacitors
Description CAP CER 0.5PF 10V X8R 0402
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage - Rated 10V
Tolerance ±0.25pF
Thickness (Max) 0.022" (0.55mm)
Temperature Coefficient X8R
Size / Dimension 0.039" L x 0.020" W (1.00mm x 0.50mm)
Series SMD Comm X8R HT150C
Ratings -
Package / Case 0402 (1005 Metric)
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 150°C
Mounting Type Surface Mount, MLCC
Lead Spacing -
Height - Seated (Max) -
Features Low ESL, High Temperature
Failure Rate -
Capacitance 0.5 pF
Base Product Number C0402C
Applications General Purpose

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.
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QC(Part Testing by IC Components)Quality Warranty

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C0402C508C8HAC7867 Product Details:

The KEMET C0402C508C8HAC7867 is a 0.5 pF ceramic capacitor with ±0.25 pF tolerance, rated for 10 V and engineered with X8R dielectric characteristics. This multilayer ceramic capacitor (MLCC) in 0402 (1005 metric) form factor measures 1.00 mm × 0.50 mm with a maximum thickness of 0.55 mm, providing a compact surface mount solution for space-constrained circuit layouts. The component belongs to KEMET's SMD Comm X8R HT150C series and maintains active production status.

The X8R temperature coefficient ensures capacitance stability across a -55°C to 150°C operating range, with capacitance variation limited to ±15% over this temperature span. This stability profile suits applications requiring consistent performance under thermal cycling or elevated ambient temperatures. The dielectric formulation addresses scenarios where both miniaturization and extended temperature operation converge, particularly in automotive underhood electronics, industrial control modules, and high-density power management circuits.

At 0.5 pF nominal capacitance, this component occupies the lower end of ceramic capacitor values, where parasitic effects and board layout become dominant factors in circuit behavior. The ±0.25 pF absolute tolerance, rather than a percentage-based specification, reflects the precision requirements for RF coupling, resonant tank circuits, and signal path applications where sub-picofarad accuracy influences frequency response. The 10 V rating provides adequate voltage margin for digital logic supply decoupling, analog bias networks, and low-voltage signal conditioning stages.

Low ESL (Equivalent Series Inductance) characteristics minimize impedance rise at higher frequencies, making the device suitable for broadband decoupling and noise suppression up through VHF ranges. The high temperature rating to 150°C extends operational headroom beyond standard 125°C components, accommodating applications near heat-generating components or in environments with limited thermal management. The 0402 footprint balances manufacturability with board density, fitting standard pick-and-place equipment while allowing tight component placement in multi-layer PCB designs.

Surface mount MLCC construction eliminates through-hole drilling and supports automated assembly processes. MSL 1 rating indicates unlimited floor life at standard factory conditions, simplifying inventory management and eliminating baking requirements prior to reflow soldering. RoHS3 compliance and REACH unaffected status align with current environmental regulations for commercial and industrial markets. The component ships in tape and reel packaging compatible with automated insertion equipment.

General purpose classification indicates suitability across diverse circuit functions including timing networks, filter stages, parasitic suppression, and AC coupling. The ultra-low capacitance value finds particular application in frequency-sensitive circuits where stray capacitance must be tightly controlled, such as oscillator feedback paths, impedance matching networks, and precision analog front ends. Engineers specifying this component typically address requirements where fractional picofarad precision, thermal stability, and miniature footprint converge in a single device.

C0402C508C8HAC7867 Image
C0402C508C8HAC7867 (1)

Replacing KEMET C0402C508C8HAC7867 When a 0.5 pF 0402 MLCC Is Hard to Source

Finding an equivalent replacement for KEMET C0402C508C8HAC7867 is not just a matter of matching capacitance. This device is a 0.5 pF, 10 V, 0402 multilayer ceramic capacitor with X8R temperature characteristics, low ESL construction, and a -55°C to 150°C operating range. At such a low capacitance value, parasitic inductance, PCB pad geometry, tolerance, dielectric behavior, and temperature rating can influence circuit behavior as much as the nominal capacitance itself.

Common replacement candidates to evaluate include KYOCERA AVX 04025A0R5CAT2A 04025A0R5CAT2A 04025A0R5CAT2A AVX Corporation CAP CER 0.5PF 50V C0G/NP0 0402 1483064 , Murata GRM1555C1H0R5CA01D, Murata GJM1555C1H0R5BB01D, TDK C1005C0G1H0R5C050BA C1005C0G1H0R5C050BA C1005C0G1H0R5C050BA TDK Corporation CAP CER 0.5PF 50V C0G 0402 200000 , Samsung CL05C0R5CB5NNNC CL05C0R5CB5NNNC CL05C0R5CB5NNNC Samsung Electro-Mechanics CAP CER 0.5PF 50V C0G/NP0 0402 20000000 , and Yageo CC0402CRNPO9BNR50 CC0402CRNPO9BNR50 CC0402CRNPO9BNR50 YAGEO CAP CER 0.5PF 50V C0G/NPO 0402 9455 . These parts are not always one-for-one substitutes in every design, but they are realistic alternatives when the design can accept C0G/NP0 dielectric behavior, a different voltage rating, or a lower maximum operating temperature.

For RF tuning, impedance matching, sensor interfaces, timing compensation, and low-capacitance filtering, replacement selection should focus on electrical equivalence under actual operating conditions rather than catalog similarity alone.

What Defines the KEMET C0402C508C8HAC7867 0.5 pF 0402 Ceramic Capacitor

KEMET C0402C508C8HAC7867 is a surface-mount multilayer ceramic capacitor from the SMD Comm X8R HT150C series. Its main value is the combination of very low capacitance, compact 0402 size, high-temperature operation, and low ESL characteristics.

ParameterKEMET C0402C508C8HAC7867 CharacteristicsReplacement Relevance
ManufacturerKEMETOriginal brand reference for sourcing and cross-checking
Capacitance0.5 pFMust be matched carefully; small PCB parasitics may equal or exceed this value
Tolerance±0.25 pFWide percentage variation, but common for sub-pF capacitors
Rated voltage10 VAlternatives with 25 V or 50 V ratings are usually acceptable if package and capacitance fit
DielectricX8RSupports -55°C to 150°C, but capacitance stability differs from C0G/NP0 alternatives
Operating temperature-55°C to 150°CA key limitation when considering 125°C-rated C0G replacements
Package0402 / 1005 metricMechanical compatibility depends on land pattern, pick-and-place accuracy, and reflow profile
Size1.00 mm x 0.50 mm, max thickness 0.55 mmMost 0402 MLCC alternatives are mechanically similar
FeaturesLow ESL, high temperatureRelevant for RF, high-speed, and compact layouts
PackagingTape & ReelSuitable for automated assembly and direct production substitution
ComplianceRoHS3, REACH unaffected, MSL 1Supports standard manufacturing and storage workflows

The original KEMET C0402C508C8HAC7867 is most likely used where a very small capacitance is needed to trim impedance, compensate parasitic effects, or provide a light capacitive coupling path. In these cases, an equivalent 0.5 pF 0402 ceramic capacitor must be evaluated in the final PCB layout because solder pads, vias, trace width, and nearby copper can shift the effective capacitance.

The X8R dielectric and 150°C rating make the original part attractive for compact electronics exposed to elevated temperatures. However, many available 0.5 pF 0402 alternatives use C0G/NP0 dielectric instead. C0G parts generally provide better capacitance stability, lower loss, and better RF behavior, but many are rated only to 125°C. That trade-off becomes central when selecting a replacement for KEMET C0402C508C8HAC7867.

Engineering Review of C0402C508C8HAC7867 Equivalent and Alternative Part Numbers

The following table compares practical replacement candidates for KEMET C0402C508C8HAC7867. Each part should be verified against the latest manufacturer datasheet, especially for tolerance code, temperature rating, packaging suffix, and lifecycle status.

ManufacturerPart NumberKey SpecificationsProduct FeaturesTypical ApplicationsWhy It Can Replace the Original PartMain Differences or LimitationsRecommended Usage
KYOCERA AVX 04025A0R5CAT2A 04025A0R5CAT2A 04025A0R5CAT2A AVX Corporation CAP CER 0.5PF 50V C0G/NP0 0402 1483064 0.5 pF, ±0.25 pF, 50 V, C0G/NP0, 0402Stable dielectric, low loss, common RF-grade MLCC formatRF matching, antenna tuning, coupling, impedance trimmingSame capacitance, same tolerance class, same 0402 footprint, higher voltage ratingTypically 125°C class rather than 150°C; dielectric differs from X8RStrong candidate when temperature does not exceed the alternative’s rating and RF stability is preferred
MurataGRM1555C1H0R5CA01D0.5 pF, ±0.25 pF, 50 V, C0G/NP0, 0402General-purpose high-stability ceramic capacitorSignal coupling, timing compensation, RF bias networks, low-capacitance filtersMatches capacitance and package while offering higher voltage marginLower maximum operating temperature than KEMET high-temperature X8R partSuitable for commercial and industrial circuits where C0G stability is more useful than 150°C rating
MurataGJM1555C1H0R5BB01D0.5 pF, tight tolerance class, 50 V, C0G/NP0, 0402High-Q RF-oriented MLCC, low lossRF front ends, impedance matching, resonant networks, wireless modulesSame nominal capacitance and footprint, improved RF behavior in many high-frequency applicationsMay have tighter tolerance and different cost/availability profile; confirm exact tolerance codePreferable for RF tuning where Q factor and repeatability are more relevant than X8R high-temperature capability
TDK C1005C0G1H0R5C050BA C1005C0G1H0R5C050BA C1005C0G1H0R5C050BA TDK Corporation CAP CER 0.5PF 50V C0G 0402 200000 0.5 pF, ±0.25 pF, 50 V, C0G/NP0, 0402Stable capacitance, low dielectric loss, standard 1005 metric packageRF circuits, high-speed signal conditioning, low-capacitance couplingSame capacitance value, same package size, higher voltage ratingTemperature ceiling usually lower than 150°C; equivalent only if thermal requirements allowGood second-source option for stable capacitance in 0402 layouts
Samsung CL05C0R5CB5NNNC CL05C0R5CB5NNNC CL05C0R5CB5NNNC Samsung Electro-Mechanics CAP CER 0.5PF 50V C0G/NP0 0402 20000000 0.5 pF, ±0.25 pF, 50 V class, C0G/NP0, 0402Broad availability, stable dielectric, production-friendly MLCCConsumer, communication, and general signal circuitsSimilar capacitance, tolerance, voltage headroom, and packageConfirm operating temperature and exact ordering code before approvalUseful when supply-chain flexibility and standard assembly compatibility are priorities
Yageo CC0402CRNPO9BNR50 CC0402CRNPO9BNR50 CC0402CRNPO9BNR50 YAGEO CAP CER 0.5PF 50V C0G/NPO 0402 9455 0.5 pF, C0G/NP0, 50 V class, 0402NP0 dielectric, compact footprint, common tape-and-reel availabilityRF matching, low-level coupling, compensation networksSame nominal capacitance and mechanical outline, higher rated voltageTolerance and suffix must be verified for exact ±0.25 pF requirement; temperature may not match 150°CSuitable as a cost-conscious replacement after validation in the actual circuit

In many designs, KYOCERA AVX 04025A0R5CAT2A 04025A0R5CAT2A 04025A0R5CAT2A AVX Corporation CAP CER 0.5PF 50V C0G/NP0 0402 1483064 , Murata GRM1555C1H0R5CA01D, and TDK C1005C0G1H0R5C050BA C1005C0G1H0R5C050BA C1005C0G1H0R5C050BA TDK Corporation CAP CER 0.5PF 50V C0G 0402 200000 are among the closest electrical matches because they provide 0.5 pF capacitance, 0402 size, C0G/NP0 stability, and higher voltage rating. Murata GJM1555C1H0R5BB01D is more attractive where RF loss and Q factor influence performance. Samsung CL05C0R5CB5NNNC CL05C0R5CB5NNNC CL05C0R5CB5NNNC Samsung Electro-Mechanics CAP CER 0.5PF 50V C0G/NP0 0402 20000000 and Yageo CC0402CRNPO9BNR50 CC0402CRNPO9BNR50 CC0402CRNPO9BNR50 YAGEO CAP CER 0.5PF 50V C0G/NPO 0402 9455 may support broader sourcing strategies, but the exact suffix and tolerance should be checked before release.

The main engineering concern is that none of these C0G/NP0 alternatives should be assumed to duplicate the 150°C operating range of the KEMET C0402C508C8HAC7867. If the application actually operates near 150°C, the original KEMET part or a confirmed high-temperature MLCC cross-reference should remain the preferred choice.

Comparing C0402C508C8HAC7867 Replacement Options by Design Trade-Off

Replacement decisions for a 0.5 pF 0402 capacitor should consider circuit sensitivity, environmental exposure, assembly constraints, and sourcing risk. The table below compares the practical trade-offs among the main alternatives.

Evaluation FactorKEMET C0402C508C8HAC7867KYOCERA AVX 04025A0R5CAT2AMurata GRM1555C1H0R5CA01DMurata GJM1555C1H0R5BB01DTDK C1005C0G1H0R5C050BASamsung CL05C0R5CB5NNNCYageo CC0402CRNPO9BNR50
Electrical compatibilityOriginal 0.5 pF, ±0.25 pF, 10 VClose match; higher 50 V ratingClose match; higher 50 V ratingClose match with RF-oriented behaviorClose match; higher 50 V ratingClose match if suffix confirms toleranceClose match if tolerance code is acceptable
Dielectric behaviorX8R, high-temperature capableC0G/NP0, more stable with voltage and temperatureC0G/NP0, stable capacitanceC0G/NP0, optimized for low lossC0G/NP0, stable and predictableC0G/NP0 classC0G/NP0 class
Mechanical compatibility0402 / 1005 metric0402 compatible0402 compatible0402 compatible0402 compatible0402 compatible0402 compatible
Temperature suitability-55°C to 150°CUsually lower than 150°C; verify datasheetUsually lower than 150°C; verify datasheetUsually lower than 150°C; verify datasheetUsually lower than 150°C; verify datasheetVerify datasheetVerify datasheet
RF and high-frequency behaviorLow ESL; suitable for compact layoutsGood RF stabilityGood general RF performanceStrong option for high-Q RF networksGood RF stabilityAdequate for many signal circuitsAdequate for cost-sensitive RF or signal circuits
Reliability considerationsOriginal qualified part, MSL 1Mature MLCC technologyMature MLCC technologyRF-grade construction may improve repeatabilityMature MLCC technologyBroad production availabilityBroad production availability
Package availabilityTape & ReelTape & Reel options commonTape & Reel options commonTape & Reel options commonTape & Reel options commonTape & Reel options commonTape & Reel options common
Cost and sourcingMay depend on KEMET availabilityOften moderate; RF-grade availability variesCommon sourcing profileMay cost more due to RF orientationCommon second-source candidateOften competitiveOften competitive
Best-fit scenarioHigh-temperature 150°C designs needing original behaviorStable replacement for RF or signal circuits below rated temperatureGeneral-purpose C0402C508C8HAC7867 substitute with C0G stabilityRF matching, antenna tuning, resonant circuitsSecond-source stable MLCC replacementProduction builds needing broad sourcingCost-aware replacement after validation
Main limitationLower voltage rating than many alternatives, X8R variationNot a direct 150°C match unless confirmedNot a direct 150°C match unless confirmedMay be over-specified or higher costMust confirm temperature and exact ordering suffixMust confirm exact code and performanceMust confirm tolerance and lifecycle status

For a high-temperature design, the KEMET C0402C508C8HAC7867 should not be replaced casually by a standard 125°C C0G capacitor unless the real operating temperature is known to remain within the alternative’s rating. For RF or impedance-matching circuits operating at moderate temperatures, C0G/NP0 alternatives such as KYOCERA AVX 04025A0R5CAT2A 04025A0R5CAT2A 04025A0R5CAT2A AVX Corporation CAP CER 0.5PF 50V C0G/NP0 0402 1483064 , Murata GRM1555C1H0R5CA01D, Murata GJM1555C1H0R5BB01D, and TDK C1005C0G1H0R5C050BA C1005C0G1H0R5C050BA C1005C0G1H0R5C050BA TDK Corporation CAP CER 0.5PF 50V C0G 0402 200000 may offer better capacitance stability and lower loss than the original X8R dielectric.

For procurement flexibility, Samsung CL05C0R5CB5NNNC CL05C0R5CB5NNNC CL05C0R5CB5NNNC Samsung Electro-Mechanics CAP CER 0.5PF 50V C0G/NP0 0402 20000000 and Yageo CC0402CRNPO9BNR50 CC0402CRNPO9BNR50 CC0402CRNPO9BNR50 YAGEO CAP CER 0.5PF 50V C0G/NPO 0402 9455 can be considered after confirming the exact tolerance, operating temperature, and packaging suffix. In sub-pF capacitor applications, final approval should include schematic review, PCB footprint confirmation, reflow compatibility, and circuit-level testing because layout parasitics can meaningfully affect the effective capacitance.

For current pricing, availability, and quotations on KEMET C0402C508C8HAC7867 replacement parts, request support through IC-Components.com or email Info@IC-Components.com.

Frequently Asked Questions

Can the C0402C508C8HAC7867 maintain its 0.5pF value in automotive or downhole environments reaching 150°C without significant aging?
The C0402C508C8HAC7867 utilizes an X8R dielectric, which is specifically engineered to limit capacitance change to ±15% across the temperature range of -55°C to +150°C. Unlike standard X7R components that degrade or shift significantly above 125°C, this C0402C508C8HAC7867 provides stable performance in extreme-heat scenarios, though designers should account for the ±0.25pF initial tolerance relative to the 0.5pF nominal value when calculating total circuit error budgets.
How does the ±0.25pF tolerance of the C0402C508C8HAC7867 impact impedance matching in high-frequency RF circuits?
In RF applications, the ±0.25pF tolerance of the C0402C508C8HAC7867 represents a 50% variance relative to its 0.5pF base capacitance. When integrating this component into a matching network, the parasitic capacitance of the PCB pads often meets or exceeds the component's own value; therefore, engineers should use thin substrates or specific "keep-out" areas under the C0402C508C8HAC7867 footprint to ensure the total effective capacitance remains within the design's allowable tuning margin.
Why would an engineer select the X8R-based C0402C508C8HAC7867 over a standard C0G/NP0 capacitor for a 0.5 pF requirement?
While C0G dielectrics offer higher Q-factors and better linearity, the C0402C508C8HAC7867 is optimized for harsh environments where mechanical robustness and high-temperature stability up to 150°C are prioritized. In applications where the operating temperature exceeds 125°C, the X8R dielectric of the C0402C508C8HAC7867 ensures that the capacitance does not suffer from the precipitous drop-off or increased dissipation factor seen in lower-rated Class II dielectrics or specialized Class I materials not rated for HT150C conditions.
What is the expected capacitance change when the C0402C508C8HAC7867 is operated at its full 10V rated DC bias?
As an X8R dielectric part, the C0402C508C8HAC7867 exhibits a voltage coefficient of capacitance (VCC), meaning its effective capacitance will decrease as DC voltage is applied. At the full 10V rating, the actual capacitance may shift slightly below the 0.5pF nominal value; for precision decoupling or high-speed signal integrity applications, characterizing the C0402C508C8HAC7867 at the specific DC operating point is necessary to ensure the circuit stays within functional limits.
Are there specific layout considerations for the C0402C508C8HAC7867 to minimize equivalent series inductance (ESL) in high-speed digital designs?
The C0402C508C8HAC7867 is designed with a low ESL profile inherent to the 0402 (1005 metric) package, but its effectiveness depends on mounting technique. To leverage the low inductance of the C0402C508C8HAC7867, vias should be placed as close to the solder pads as possible, ideally using via-in-pad or twin-via structures, to prevent PCB trace inductance from dominating the high-frequency response of this 0.5pF capacitor.
When replacing a Murata GCM series or TDK CGA series part with the KEMET C0402C508C8HAC7867, which mechanical differences must be evaluated?
The C0402C508C8HAC7867 features a maximum thickness of 0.55mm, which fits the standard 0402 footprint. However, when migrating to the C0402C508C8HAC7867 from other brands, engineers must verify that the termination material—matte tin over nickel—is compatible with their specific solder reflow profile and that the X8R temperature rating matches or exceeds the original component's specification for the intended thermal zone.
How does the moisture sensitivity level of the C0402C508C8HAC7867 affect long-term reliability in non-hermetic industrial enclosures?
The C0402C508C8HAC7867 is rated at MSL 1, indicating it is not subject to moisture-induced "popcorning" during reflow and does not require specialized dry-bag storage. For long-term deployment in humid industrial environments, the X8R dielectric and robust construction of the C0402C508C8HAC7867 provide resistance against insulation resistance (IR) degradation, provided the PCB is properly cleaned of ionic contaminants and flux residues that could create conductive paths between the terminals of the 0.5pF capacitor.

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