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Home > Products > Capacitors > Ceramic Capacitors > C0805X129D1HAC7800
KEMET
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C0805X129D1HAC7800

In Stock 1387427 pcs Reference Price(In US Dollars)
1+
$0.0202
200+
$0.0078
500+
$0.0075
1000+
$0.0075
Manufacturer Part Number:
C0805X129D1HAC7800
Manufacturer / Brand
KEMET
Part of Description:
CAP CER 0805 1.2PF 100V ULTRA ST
Datasheets:
C0805X129D1HAC7800(1).pdfC0805X129D1HAC7800(2).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 1387427 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number C0805X129D1HAC7800
Manufacturer / Brand KEMET
Stock Quantity 1387427 pcs Stock
Category Capacitors > Ceramic Capacitors
Description CAP CER 0805 1.2PF 100V ULTRA ST
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage - Rated 100V
Tolerance ±0.5pF
Thickness (Max) 0.039" (0.98mm)
Temperature Coefficient X8R
Size / Dimension 0.079" L x 0.049" W (2.00mm x 1.25mm)
Series SMD Comm X8R HT150C Flex
Ratings -
Package / Case 0805 (2012 Metric)
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 150°C
Mounting Type Surface Mount, MLCC
Lead Style -
Lead Spacing -
Height - Seated (Max) -
Features Low ESL, Soft Termination, High Temperature
Failure Rate -
Capacitance 1.2 pF
Base Product Number C0805X
Applications Boardflex Sensitive

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.



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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)
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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

How does the soft termination technology in the C0805X129D1HAC7800 mitigate the risk of capacitor cracking in high-vibration industrial environments?
The C0805X129D1HAC7800 incorporates a conductive silver epoxy layer within the termination structure, which acts as a buffer between the rigid ceramic body and the solder joint. In applications where PCBs are subject to mechanical stress or board flexure, the C0805X129D1HAC7800 absorbs the strain that would otherwise cause traditional MLCCs to develop internal short-circuits or open-circuit failures.
What are the performance trade-offs when selecting the C0805X129D1HAC7800 for high-temperature applications reaching 150°C?
Unlike standard X7R capacitors limited to 125°C, the C0805X129D1HAC7800 uses an X8R dielectric designed specifically for stability up to 150°C. While Class I dielectrics like C0G offer better temperature coefficients, the C0805X129D1HAC7800 provides the necessary ruggedness for automotive under-the-hood or downhole drilling electronics where thermal cycling is extreme and mechanical reliability is prioritized over ultra-tight capacitance drift.
Is the 100V rating of the C0805X129D1HAC7800 necessary for low-voltage signal paths, or is it an over-specification?
Utilizing a 100V rated part like the C0805X129D1HAC7800 in lower voltage circuits significantly reduces the probability of dielectric breakdown and extends the component's mean time between failures (MTBF). In sensitive signal filtering, the higher voltage rating of the C0805X129D1HAC7800 also ensures that the voltage coefficient of capacitance (VCC) effect remains negligible, maintaining the intended 1.2 pF value across the operating voltage range.
How does the Low ESL feature of the C0805X129D1HAC7800 impact its resonance frequency in RF decoupling stages?
The Low ESL (Equivalent Series Inductance) design of the C0805X129D1HAC7800 shifts the self-resonant frequency (SRF) higher compared to standard 0805 capacitors. For an ultra-low capacitance value of 1.2 pF, the C0805X129D1HAC7800 allows for more effective high-frequency noise suppression and better impedance matching in the gigahertz range, where parasitic inductance typically limits capacitor performance.
Can the C0805X129D1HAC7800 be used as a direct drop-in replacement for a standard C0G 0805 capacitor in precision timing circuits?
While the C0805X129D1HAC7800 offers superior mechanical robustness, its X8R dielectric is a Class II material with a ±15% capacitance change over temperature, whereas C0G is ultra-stable. If the timing circuit requires high precision, the thermal drift of the C0805X129D1HAC7800 must be modeled; however, for general decoupling or snubbing in harsh environments, the C0805X129D1HAC7800 is an ideal replacement due to its flex-crack resistance.
What specific soldering considerations are required to maintain the integrity of the flexible termination on the C0805X129D1HAC7800?
The C0805X129D1HAC7800 is compatible with standard reflow profiles, but excessive dwell time at peak temperatures should be avoided to prevent degradation of the flexible polymer layer. When integrating the C0805X129D1HAC7800 into an assembly, ensure that the cooling rate is controlled to prevent thermal shock, which can compromise the interface between the soft termination and the ceramic dielectric.
How does the ±0.5pF tolerance of the C0805X129D1HAC7800 affect its suitability for narrow-band impedance matching?
At a nominal value of 1.2 pF, the ±0.5pF tolerance of the C0805X129D1HAC7800 represents a relatively large percentage of the total capacitance. In tight-tolerance RF filters, designers should account for this variance during simulation or select the C0805X129D1HAC7800 primarily for broadband DC blocking or snubber applications where the exact picofarad value is less critical than the 100V durability and 150°C rating.
Why is the C0805X129D1HAC7800 preferred over smaller 0402 or 0603 packages in boardflex-sensitive designs?
Although smaller packages generally experience less stress from board bending, the 0805 footprint of the C0805X129D1HAC7800 is often required for higher voltage clearance or specific power handling requirements. By using the C0805X129D1HAC7800, engineers can utilize the larger 0805 pad size for easier manufacturing while the "X" series flexible termination compensates for the increased mechanical leverage that larger packages usually exert on solder joints.

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CAP CER 0805 1.2PF 100V ULTRA ST

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