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Home > Products > Capacitors > Film Capacitors > MKP385418125JKM2T0
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MKP385418125JKM2T0

In Stock 18131 pcs Reference Price(In US Dollars)
100+
$2.0626
Manufacturer Part Number:
MKP385418125JKM2T0
Manufacturer / Brand
Vishay Beyschlag/Draloric/BC Components
Part of Description:
CAP FILM 0.18UF 5% 1.25KVDC RAD
Datasheets:
MKP385418125JKM2T0(1).pdfMKP385418125JKM2T0(2).pdfMKP385418125JKM2T0(3).pdfMKP385418125JKM2T0(4).pdfMKP385418125JKM2T0(5).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 18131 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number MKP385418125JKM2T0
Manufacturer / Brand Vishay Beyschlag/Draloric/BC Components
Stock Quantity 18131 pcs Stock
Category Capacitors > Film Capacitors
Description CAP FILM 0.18UF 5% 1.25KVDC RAD
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage Rating - DC 1250V (1.25kV)
Voltage Rating - AC 450V
Tolerance ±5%
Termination PC Pins
Size / Dimension 1.220" L x 0.433" W (31.00mm x 11.00mm)
Series MKP385
Ratings -
Package / Case Radial
Package Tray
Operating Temperature -55°C ~ 110°C
Mounting Type Through Hole
Lead Spacing 1.083" (27.50mm)
Height - Seated (Max) 0.827" (21.00mm)
Features -
Dielectric Material Polypropylene (PP), Metallized
Capacitance 0.18 µF
Applications DC Link, DC Filtering; High Frequency, Switching; High Pulse, DV/DT

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

Can the MKP385418125JKM2T0 be utilized as a snubber capacitor in high-frequency IGBT inverter circuits despite its primary DC Link classification?
Yes, the MKP385418125JKM2T0 is suitable for snubbering due to its metallized polypropylene construction and high dV/dt rating. In high-frequency switching environments, the MKP385418125JKM2T0 exhibits low dissipation factors, which minimizes internal heat generation during rapid voltage transitions. Designers should verify that the peak-to-peak current does not exceed the ripple current limits defined for the 0.18uF capacitance value to ensure long-term stability.
What are the thermal derating considerations when operating the MKP385418125JKM2T0 film capacitor in a sealed industrial enclosure at 110°C?
When the ambient temperature inside an enclosure reaches the 110°C maximum rating of the MKP385418125JKM2T0, the allowable AC ripple current must be derated. Since internal self-heating caused by ESR adds to the ambient temperature, operating the MKP385418125JKM2T0 at full load near its thermal limit can accelerate dielectric aging. Engineers should calculate the temperature rise based on the operating frequency to ensure the hot-spot temperature remains within the polypropylene dielectric's safe operating envelope.
How does the self-healing mechanism of the MKP385418125JKM2T0 improve system reliability compared to high-voltage ceramic MLCCs?
Unlike ceramic capacitors that typically fail as a short circuit under dielectric breakdown, the MKP385418125JKM2T0 features a metallized layer that evaporates at the site of a localized fault. This self-healing process isolates the failure point and allows the MKP385418125JKM2T0 to continue functioning with a negligible reduction in total capacitance. This behavior is a significant factor in preventing catastrophic board-level failures in high-voltage DC filtering applications.
Does the 27.5mm lead spacing of the MKP385418125JKM2T0 introduce significant parasitic inductance in 100kHz switching power supplies?
The 1.083" (27.5mm) lead pitch of the MKP385418125JKM2T0 inherently possesses equivalent series inductance (ESL) that must be accounted for in high-speed layout designs. In 100kHz switching stages, the physical dimensions of the MKP385418125JKM2T0 require optimized PCB trace routing to minimize the loop area. Reducing this loop area helps mitigate voltage ringing and electromagnetic interference (EMI) that could otherwise be exacerbated by the component's lead length.
Is the MKP385418125JKM2T0 appropriate for across-the-line EMI suppression in 480VAC three-phase motor drives?
The MKP385418125JKM2T0 carries a maximum AC voltage rating of 450V, which is below the peak voltage requirements for standard 480VAC line-to-line applications. While the MKP385418125JKM2T0 excels in DC Link and high-pulse filtering, using it in a 480VAC environment exceeds its design parameters and may lead to corona discharge within the polypropylene layers. For across-the-line suppression at these levels, a capacitor with a higher AC rating or specific X-class safety certification would be required.
What are the trade-offs when substituting a polyester (PET) film capacitor with the MKP385418125JKM2T0 in a resonant tank circuit?
Substituting a polyester capacitor with the MKP385418125JKM2T0, which uses a polypropylene (PP) dielectric, results in significantly lower dielectric losses and better capacitance stability over temperature. The MKP385418125JKM2T0 maintains a more consistent resonant frequency in LLC converters, reducing the risk of the circuit drifting out of the zero-voltage switching (ZVS) region. However, the MKP385418125JKM2T0 may have a larger physical footprint than an equivalent PET part, requiring a verification of the available PCB volume.
How does the MKP385418125JKM2T0 handle high-current pulse discharge cycles in medical or industrial pulse-forming networks?
The MKP385418125JKM2T0 is engineered for high dV/dt and high pulse applications, making it capable of handling rapid discharge cycles. The internal connections between the metallized film and the end-spray (schoopage) of the MKP385418125JKM2T0 are optimized for low contact resistance. This construction allows the capacitor to withstand high peak currents during discharge without localized overheating at the lead attachment points, provided the repetition rate stays within the thermal limits of the 1.25kVDC rating.
When migrating a design from a 1000VDC capacitor to the 1250VDC rated MKP385418125JKM2T0, what clearance and creepage adjustments are necessary?
Increasing the operating voltage to the 1250VDC level provided by the MKP385418125JKM2T0 requires a review of PCB creepage and clearance distances to meet safety standards like IEC 60664-1. Since the MKP385418125JKM2T0 has a width of 11.00mm and a length of 31.00mm, the solder pad design must provide sufficient isolation between the high-voltage terminals. Engineers should ensure that the PCB layout around the MKP385418125JKM2T0 accounts for the increased potential to prevent surface arcing under high-humidity conditions.

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MKP385418125JKM2T0

Vishay Beyschlag/Draloric/BC Components

CAP FILM 0.18UF 5% 1.25KVDC RAD

In Stock: 18131

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