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Home > Products > Capacitors > Ceramic Capacitors > 1206GC391KAT3A
KYOCERA AVX
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1206GC391KAT3A

In Stock 125501 pcs Reference Price(In US Dollars)
15000+
$0.1825
Manufacturer Part Number:
1206GC391KAT3A
Manufacturer / Brand
KYOCERA AVX
Part of Description:
CAP CER SMD
Datasheets:
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 125501 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number 1206GC391KAT3A
Manufacturer / Brand KYOCERA AVX
Stock Quantity 125501 pcs Stock
Category Capacitors > Ceramic Capacitors
Description CAP CER SMD
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage - Rated 2000V (2kV)
Tolerance ±10%
Thickness (Max) 0.071" (1.80mm)
Temperature Coefficient X7R
Size / Dimension 0.126" L x 0.063" W (3.20mm x 1.60mm)
Series -
Ratings -
Package / Case 1206 (3216 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 390 pF
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.



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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 should PCB layout designers address surface arcing risks when integrating the 1206GC391KAT3A into a high-density 2000V power supply?
Because the 1206GC391KAT3A utilizes a compact 1206 (3216 Metric) footprint for a 2kV rating, the distance between the solder pads is approximately 1.5mm to 2.0mm, which is often insufficient to prevent surface tracking or arcing under standard atmospheric conditions. Designers using the 1206GC391KAT3A should implement a combination of conformal coating and potentially a physical slot or cutout between the pads to increase the effective creepage distance. Without these measures, environmental contaminants or humidity may compromise the high-voltage isolation provided by the ceramic body.
What is the estimated capacitance loss due to DC bias when operating the 1206GC391KAT3A at its full 2kV rated voltage?
As an X7R dielectric component, the 1206GC391KAT3A exhibits significant voltage coefficient of capacitance (VCC) effects. When a 2000V DC bias is applied, the effective capacitance of the 1206GC391KAT3A may drop by 50% to 80% of its nominal 390 pF value, depending on the internal layer structure. For precision timing or critical snubber applications, engineers must account for this reduction by verifying the circuit performance at the actual operating voltage rather than relying on the nominal datasheet capacitance.
Can the 1206GC391KAT3A be used as a direct replacement for C0G/NP0 high-voltage capacitors in resonant converter circuits?
The 1206GC391KAT3A is generally not a drop-in replacement for C0G/NP0 types in high-Q resonant or high-frequency power applications. While the 1206GC391KAT3A offers the required 2000V rating and 390 pF value, the X7R dielectric has a much higher dissipation factor and is prone to self-heating under high AC ripple currents. If used in a resonant tank, the 1206GC391KAT3A may experience thermal runaway or frequency shifting that C0G alternatives would avoid due to their superior temperature stability and lower ESR.
How does the 1.80mm maximum thickness of the 1206GC391KAT3A impact mechanical reliability in designs prone to PCB flexure?
The 1206GC391KAT3A has a high profile (1.80mm) relative to its footprint, which increases its susceptibility to mechanical stress and cracking during board depanelization or handling. Because high-voltage MLCCs like the 1206GC391KAT3A utilize internal electrode designs optimized for voltage breakdown, a flex crack can lead to an immediate insulation resistance failure or a latent short circuit. It is advisable to orient the 1206GC391KAT3A parallel to the direction of expected board stress and maintain a safe distance from mounting holes or V-score lines.
When migrating from a 1812-sized 2kV capacitor to the 1206GC391KAT3A, what thermal management trade-offs should be considered?
Migrating to the 1206GC391KAT3A provides significant space savings, but the reduced surface area of the 1206 package limits its ability to dissipate heat generated by ripple currents. Engineers must verify that the IR losses in the 1206GC391KAT3A do not cause the component temperature to exceed the 125°C limit. In applications with high dV/dt or high-frequency switching, the 1206GC391KAT3A may require more aggressive thermal via placement or thicker copper traces compared to larger 1812 or 2220 alternatives.
Is the 1206GC391KAT3A suitable for primary-to-secondary isolation in medical power supplies or high-voltage safety barriers?
The 1206GC391KAT3A is a general-purpose high-voltage MLCC and does not carry safety certifications such as UL 60950-1, IEC 60384-14, or Y2/X1 ratings. While the 1206GC391KAT3A can withstand 2000V DC, it is not designed to handle the specific impulse tests or fail-safe requirements mandated for isolation barriers. For safety-critical applications, the 1206GC391KAT3A should only be used in secondary-side circuits or snubbers where a component failure does not pose a shock hazard.
What soldering profile adjustments are necessary to prevent delamination in the 1206GC391KAT3A during lead-free reflow?
Due to the high number of internal ceramic and electrode layers required for the 2kV rating, the 1206GC391KAT3A is sensitive to rapid temperature changes. To minimize the risk of internal delamination or micro-cracking, the preheating phase for the 1206GC391KAT3A should be gradual, typically maintaining a ramp rate of less than 2°C to 3°C per second. Cooling should also be controlled to avoid thermal shock, ensuring the 1206GC391KAT3A reaches ambient temperature naturally rather than through forced air or liquid cleaning immediately after reflow.

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