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WYO252MCMBF0KR
Vishay Beyschlag/Draloric/BC Components
CAP CER 2500PF 440VAC Y5U RADIAL
2443 Pcs New Original In Stock
2500 pF ±20% 440VAC Ceramic Capacitor Y5U (E) Radial, Disc
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5.0 / 5.0
- (364 Ratings)
WYO252MCMBF0KR
Product Overview
1233135
DiGi Electronics Part Number
WYO252MCMBF0KR-DGManufacturer
Vishay Beyschlag/Draloric/BC Components
WYO252MCMBF0KR
Description
CAP CER 2500PF 440VAC Y5U RADIALInventory
2443 Pcs New Original In Stock
2500 pF ±20% 440VAC Ceramic Capacitor Y5U (E) Radial, Disc
Quantity
Minimum 1
Minimum 1
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WYO252MCMBF0KR Technical Specifications
Category
Ceramic Capacitors
Packaging
Bulk
Series
WYO
Product Status
Active
Capacitance
2500 pF
Tolerance
±20%
Voltage - Rated
440VAC
Temperature Coefficient
Y5U (E)
Operating Temperature
-40°C ~ 125°C
Features
-
Ratings
X1, Y2
Applications
Safety
Failure Rate
-
Mounting Type
Through Hole
Package / Case
Radial, Disc
Size / Dimension
0.354" Dia (9.00mm)
Height - Seated (Max)
0.472" (12.00mm)
Thickness (Max)
-
Lead Spacing
0.197" (5.00mm)
Lead Style
Straight
Datasheet & Documents
HTML Datasheet
WYO252MCMBF0KR-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
Not Applicable
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8532.23.0060
Additional Information
Other Names
WYO252MCMBF0KR-DG
BC5206
Standard Package
2,000
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
WYO252MCMQA0KR
Vishay Beyschlag/Draloric/BC Components
820
WYO252MCMQA0KR-DG
0.1753
Parametric Equivalent
WYO252MCMSAYKR
Vishay Beyschlag/Draloric/BC Components
1046
WYO252MCMSAYKR-DG
0.1753
Parametric Equivalent
WYO252MCMBRCKR
Vishay Beyschlag/Draloric/BC Components
1007
WYO252MCMBRCKR-DG
0.1753
Parametric Equivalent
WYO252MCMSCZKR
Vishay Beyschlag/Draloric/BC Components
765
WYO252MCMSCZKR-DG
0.1753
Parametric Equivalent
WYO252MCMBB0KR
Vishay Beyschlag/Draloric/BC Components
766
WYO252MCMBB0KR-DG
0.1753
Parametric Equivalent
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
値段に対してサービスが非常に良く、満足度が高いです。
Dec 02, 2025
DiGi Electronics' packaging initiatives are a step toward a greener future.
Dec 02, 2025
DiGi Electronics keeps a plentiful supply of components, which is critical for my manufacturing schedules.
Dec 02, 2025
The support staff’s professionalism makes post-purchase interactions smooth and effective.
Dec 02, 2025
Their commitment to after-sales service exceeds my expectations every time.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the Vishay WYO252MCMBF0KR ceramic capacitor in high-humidity industrial environments?
When designing the Vishay WYO252MCMBF0KR into high-humidity environments, be aware of its non-hermetic radial leaded construction, which can allow moisture ingress over time—especially in applications near condensation thresholds. Although rated for -40°C to 125°C operation, prolonged exposure to humidity can degrade the Y5U dielectric’s insulation resistance and increase leakage current. To mitigate risk, consider conformal coating the assembly or using sealed enclosures. Also verify long-term reliability by monitoring insulation resistance during HALT testing, particularly if deployed in outdoor-rated industrial controls or HVAC systems where the Y2 safety rating applies.
How does the Y5U dielectric in the Vishay WYO252MCMBF0KR impact circuit stability compared to alternatives like X7R or C0G in AC filtering applications?
The Y5U dielectric in the Vishay WYO252MCMBF0KR exhibits significant capacitance variation with temperature—up to -20% to +20% across -40°C to 125°C—making it less stable than X7R (±15%) or C0G (±30ppm/°C). In AC line filtering or EMI suppression where consistent filtering performance is critical, this variability can reduce noise attenuation at temperature extremes. Designers should simulate filter response across operating conditions and consider using the WYO252MCMBF0KR only where cost and size are prioritized over tight performance tolerance. For better stability, compare with C0G-based Vishay SAFD or Murata U2J types, though they may require higher cost or different form factors.
Can the Vishay WYO252MCMBF0KR replace failed Y2 capacitors like the KEMET R46Y5252500MC or WIMA MKP-Y2 in SMPS designs, and what layout considerations are required?
Yes, the Vishay WYO252MCMBF0KR can replace Y2-rated capacitors such as the KEMET R46Y5252500MC or WIMA MKP-Y2 in switch-mode power supplies due to its X1/Y2 safety certification and 440VAC rating, which meet IEC 60384-14 insulation requirements. However, because it's a ceramic disc vs. typical film replacements, parasitic inductance is lower but mechanical fragility is higher. Ensure PCB layout minimizes mechanical stress by avoiding tight mounting or flexing, and maintain creepage/clearance distances—especially with its 9mm diameter and 5mm lead spacing. Use strain relief or potting if vibration is present, and note that ceramic cracking could lead to short-circuit failure vs. film’s open-fail tendency.
What are the failure mode implications of using the Vishay WYO252MCMBF0KR in high-repetitive surge environments like industrial motor drives?
In environments with repetitive voltage surges—such as VFD output stages or induction heating—the Vishay WYO252MCMBF0KR's ceramic construction may be prone to cracking due to mechanical stress from thermal cycling and piezoelectric effects. Unlike film capacitors, cracked ceramics can fail short-circuit, posing a fire or safety hazard. Although rated for 440VAC and classified Y2, its Y5U dielectric has lower intrinsic surge endurance. Mitigate this by limiting mechanical stress in mounting, adding upstream transient protection, and verifying performance under surge testing per IEC 61000-4-5. For higher surge robustness, consider Y2 film alternatives like the Panasonic ECQ-Y5, even with larger footprint.
How does lead spacing and physical size of the Vishay WYO252MCMBF0KR affect PCB design and safety clearance in compact power electronics?
The Vishay WYO252MCMBF0KR has a 5.00mm lead spacing and 9.00mm diameter, which directly impacts creepage and clearance requirements in compact AC-connected PCBs. For 440VAC operation, IEC 62368-1 mandates minimum 4mm clearance in pollution degree 2 environments—its large diameter helps meet this when board space allows. However, improper pad spacing or solder fillets can reduce effective distance. Always design pads to limit solder wicking, use slot isolation under the body if routing between leads, and confirm spacing compliance in your layout. Its 12mm seated height also requires adequate enclosure clearance, especially in stacked assemblies.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
WYO252MCMBF0KR CAD Models
Vishay Beyschlag/Draloric/BC Components WYO252MCMBF0KR PCB symbols & footprints
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