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Home > Products > Capacitors > Ceramic Capacitors > 2225J1K50183MXR
Knowles Syfer
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2225J1K50183MXR

Manufacturer Part Number:
2225J1K50183MXR
Manufacturer / Brand
Knowles Syfer
Part of Description:
CAP CER 0.018UF 1.5KV X7R 2225
Datasheets:
2225J1K50183MXR(1).pdf2225J1K50183MXR(2).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 654471 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number 2225J1K50183MXR
Manufacturer / Brand Knowles Syfer
Stock Quantity 654471 pcs Stock
Category Capacitors > Ceramic Capacitors
Description CAP CER 0.018UF 1.5KV X7R 2225
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage - Rated 1500V (1.5kV)
Tolerance ±20%
Thickness (Max) 0.098" (2.50mm)
Temperature Coefficient X7R
Size / Dimension 0.224" L x 0.248" W (5.70mm x 6.30mm)
Series -
Ratings -
Package / Case 2225 (5763 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 0.018 µF
Base Product Number 2225J
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

Is 2225J1K50183MXR suitable for a high-voltage snubber or resonant circuit with fast dv/dt?
2225J1K50183MXR can work in snubber, clamp, or resonant positions if you verify the actual waveform stress, not just the nominal capacitance. As an X7R MLCC, its effective capacitance can shift with DC bias and temperature, so the circuit should be checked at the worst-case operating point. Keep the current loop short, minimize trace inductance, and confirm that repetitive pulse heating stays within the part’s thermal margin. If the design sees high-energy pulses, a film capacitor may behave more predictably than 2225J1K50183MXR.
What PCB clearance and creepage considerations should I use around 2225J1K50183MXR in a 1.5 kV design?
The 1500 V rating of 2225J1K50183MXR refers to the capacitor element, but the required external spacing depends on your system voltage, pollution degree, insulation class, coating, and applicable safety standard. Use creepage and clearance rules for the end equipment rather than the body size of the capacitor as the only reference. In layouts with high dV/dt nodes, keep copper away from the capacitor ends and avoid solder bridges or flux residues that can create leakage paths. For reinforced or basic insulation designs, validate 2225J1K50183MXR against the full system compliance plan.
Can 2225J1K50183MXR replace a film capacitor or a lower-voltage ceramic capacitor?
2225J1K50183MXR is often chosen when board space is limited and a compact high-voltage MLCC is acceptable, but it is not a one-for-one replacement for every film or low-voltage ceramic part. Compared with film, it usually offers a much smaller footprint, but it can show more capacitance change with bias and more sensitivity to mechanical stress. If you are replacing a lower-voltage ceramic, confirm that the new operating voltage, pulse stress, and thermal behavior still fit the design margin. For timing, precision analog, or low-distortion paths, 2225J1K50183MXR should be evaluated in-circuit before release.
How much capacitance change should I expect from 2225J1K50183MXR under DC bias and temperature?
2225J1K50183MXR uses X7R dielectric, so the usable capacitance can be lower than the nominal 18 nF when DC bias is applied, especially close to its rated voltage and at higher temperatures. The practical value should be taken from the manufacturer’s bias curve for your exact operating voltage and temperature range. If the circuit needs a minimum capacitance to meet ripple, filtering, or delay targets, design margin should be based on the biased value rather than the catalog value. That is often the deciding factor when selecting 2225J1K50183MXR for a real circuit.
How do I compare 2225J1K50183MXR with equivalent parts from Murata, TDK, KEMET, AVX, or Vishay?
When comparing 2225J1K50183MXR with equivalent 18 nF, 1.5 kV X7R MLCCs from Murata, TDK, KEMET, AVX, or Vishay, do not rely on nominal capacitance alone. Different manufacturers can have different DC-bias curves, ESR/ESL behavior, termination systems, and mechanical robustness even when the footprint and voltage class look similar. For a drop-in migration, check the land pattern, thickness, reflow limits, and pulse performance in the actual circuit. A bench comparison of 2225J1K50183MXR against the candidate substitute is usually needed before releasing an alternate part.
Is 2225J1K50183MXR appropriate for AC mains EMI suppression or across-the-line use?
2225J1K50183MXR can be used in high-voltage functional filtering, but it is not automatically a safety-certified X1, X2, Y1, or Y2 capacitor. For direct across-the-line or line-to-ground suppression, the final design usually needs a capacitor with the correct safety classification and approvals for the end product. If you are using 2225J1K50183MXR in a mains-powered circuit, confirm the insulation and regulatory requirements first, then verify that its electrical behavior fits the filter target. In many products, 2225J1K50183MXR is better suited to non-safety functional nodes than to certified mains suppression positions.
What assembly and layout risks should I watch for with 2225J1K50183MXR on a 2225 footprint?
Because 2225J1K50183MXR is a relatively large SMT ceramic capacitor, board flex and uneven solder fillets can create crack risk during assembly or field use. Use a symmetric pad design, avoid placing it near board edges, mounting holes, or depanelization stress points, and keep reflow profiles within the recommended limits for the solder system. If the application sees vibration or repeated thermal cycling, consider additional mechanical margin and post-assembly inspection for edge cracking. Those checks are often more relevant than the nominal capacitance value for 2225J1K50183MXR in production hardware.
Is 2225J1K50183MXR a good fit for industrial equipment that runs hot for long periods?
2225J1K50183MXR is specified for -55°C to 125°C, so it can fit many industrial environments, but long-term behavior still depends on voltage derating, humidity exposure, ripple current, and PCB stress. X7R capacitors age electrically over time, and the effective capacitance in service can differ from the initial measurement, especially when bias and temperature are high. For continuous-duty equipment, verify endurance with worst-case voltage, thermal cycling, and any required conformal coating or cleaning process. The MSL 1 rating of 2225J1K50183MXR simplifies handling, but circuit qualification should still include real operating conditions.

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