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Home > Products > Capacitors > Ceramic Capacitors > 1812J2K00471FCT
Knowles Syfer
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1812J2K00471FCT

In Stock 80935 pcs Reference Price(In US Dollars)
1+
$0.8113
200+
$0.3146
500+
$0.3041
1000+
$0.2981
Manufacturer Part Number:
1812J2K00471FCT
Manufacturer / Brand
Knowles Syfer
Part of Description:
CAP CER 470PF 2KV C0G/NP0 1812
Datasheets:
1812J2K00471FCT(1).pdf1812J2K00471FCT(2).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 80935 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number 1812J2K00471FCT
Manufacturer / Brand Knowles Syfer
Stock Quantity 80935 pcs Stock
Category Capacitors > Ceramic Capacitors
Description CAP CER 470PF 2KV C0G/NP0 1812
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage - Rated 2000V (2kV)
Tolerance ±1%
Thickness (Max) 0.098' (2.50mm)
Temperature Coefficient C0G, NP0 (1B)
Size / Dimension 0.177' L x 0.126' W (4.50mm x 3.20mm)
Series -
Ratings -
Package / Case 1812 (4532 Metric)
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 125°C
Mounting Type Surface Mount, MLCC
Lead Style -
Lead Spacing -
Height - Seated (Max) -
Features -
Failure Rate -
Capacitance 470 pF
Base Product Number 1812J
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.
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 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

Does the 1812J2K00471FCT experience a drop in capacitance when operating near its 2kV rated voltage?
No, the 1812J2K00471FCT utilizes C0G (NP0) dielectric technology, which is characterized by its lack of DC bias sensitivity. Unlike X7R or other Class II ceramics, the 470pF capacitance of the 1812J2K00471FCT remains stable even as the applied voltage approaches the 2000V limit, making it suitable for precision resonant circuits and high-voltage timing applications.
What layout precautions are necessary to prevent surface arcing across the 1812J2K00471FCT in high-humidity environments?
While the 1812J2K00471FCT is internally rated for 2kV, the physical distance between the terminals in an 1812 package (4.5mm length) may not provide sufficient creepage distance for some safety standards. Designers using the 1812J2K00471FCT in high-voltage power supplies should consider applying a conformal coating or milling a slot in the PCB between the pads to prevent atmospheric breakdown or surface tracking.
Can the 1812J2K00471FCT be used as a direct replacement for a 470pF 2kV capacitor with a ±5% or ±10% tolerance?
The 1812J2K00471FCT features a tight ±1% tolerance, which exceeds the precision requirements of standard ±5% (J) or ±10% (K) parts. While it is a high-performance substitute, engineers must ensure the low ESR (Equivalent Series Resistance) of the C0G dielectric in the 1812J2K00471FCT does not negatively impact the damping characteristics if the original circuit was designed around the lossier characteristics of an X7R dielectric.
How does the 1812J2K00471FCT handle thermal expansion stress compared to smaller 0805 or 1206 MLCCs?
Due to the larger 1812 (4532 Metric) footprint, the 1812J2K00471FCT is more susceptible to mechanical cracking caused by PCB flexure or Coefficient of Thermal Expansion (CTE) mismatches. For industrial applications with frequent thermal cycling, it is recommended to orient the 1812J2K00471FCT away from high-stress areas like board mounting holes and to use a controlled solder fillet height to allow for some mechanical compliance.
Is the 1812J2K00471FCT suitable for high-frequency snubber applications in GaN or SiC power converters?
Yes, the 1812J2K00471FCT is well-suited for high-speed switching environments because the C0G material has a very low dissipation factor and does not exhibit piezoelectric "ringing." The 2kV rating of the 1812J2K00471FCT provides a significant safety margin for voltage spikes, though designers should calculate the peak ripple current to ensure it stays within the thermal limits of the 1812 package.
What are the implications of substituting the 1812J2K00471FCT with two 1000V capacitors in series to achieve the same voltage rating?
Substituting the 1812J2K00471FCT with two series-connected capacitors requires a voltage-balancing network (usually high-value resistors) to ensure equal voltage distribution across both components. Using a single 1812J2K00471FCT simplifies the BOM and eliminates the parasitic inductance added by extra traces and components, which is critical for maintaining the 470pF precision in high-frequency paths.
How does the 1812J2K00471FCT perform in long-term industrial deployments under continuous 125°C operating conditions?
The 1812J2K00471FCT is rated for operation up to 125°C without de-rating its 470pF capacitance. Because C0G dielectrics do not suffer from the aging mechanisms found in high-dielectric-constant ceramics, the 1812J2K00471FCT maintains its performance over the long term, provided the combined DC and AC peak voltages do not exceed the 2000V dielectric withstand capability.
Can the 1812J2K00471FCT be used in automotive EV battery management systems despite not having an explicit AEC-Q200: rating?
While the 1812J2K00471FCT is a general-purpose high-voltage capacitor, it shares the robust construction of Knowles Syfer’s industrial range. For mission-critical automotive safety systems, an AEC-Q200: qualified version would typically be preferred; however, for non-safety-related prototyping or high-voltage sensing where ±1% precision is required, the 1812J2K00471FCT offers the necessary electrical characteristics for 2kV isolation.

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