WMC2P22K-F Equivalent & Substitute Parts

Part Overview

The WMC2P22K-F is a 0.22 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 200V DC voltage rating and polyester dielectric material in axial through-hole packaging. The product is currently active in inventory with 1,025 pieces available. Alternative equivalent parts may be required due to application-specific voltage rating requirements, package dimension constraints, or operational temperature specifications that differ from this primary component.

Substiute Parts

WMC2P22K-F

Cornell Dubilier Electronics (CDE)In Stock: 1133WMC2P22K-F Datasheet

Current PartRFQ

224MWR250K

Cornell Dubilier / Illinois CapacitorIn Stock: 11192224MWR250K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the WMC2P22K-F is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Requirements:

• Capacitance value: 0.22 µF (exact match required)
• Tolerance: ±10% (maintained for circuit accuracy)
• Voltage rating: Minimum 200V DC (equal or higher ratings are permissible)
• Dielectric material: Polyester or equivalent film material

Mechanical Compatibility Requirements:

• Mounting type: Through Hole (required for PCB assembly compatibility)
• Package type: Axial (required for lead configuration and placement)
• Physical dimensions: Must accommodate board layout space constraints
• Termination: PC Pins (required for solder joint compatibility)

Operational Requirements:

• Operating temperature range: Must support -55°C to 125°C minimum
• Regulatory compliance: ROHS3 and REACH compliance maintained

The 224MWR250K substitute part meets the electrical substitution criteria with an identical capacitance and tolerance specification, a higher voltage rating (250V DC exceeds the 200V minimum), and maintains polyester film dielectric construction. However, physical dimensions differ significantly, requiring design evaluation for board layout accommodation.

Parameter Comparison

Engineering Selection Recommendations

Both the WMC2P22K-F and 224MWR250K are active products with ROHS3 and REACH compliance certifications. The 224MWR250K substitute part satisfies electrical substitution requirements with identical capacitance and tolerance specifications combined with a higher voltage rating that exceeds the 200V DC minimum requirement. Both components support through-hole axial mounting with PC pin termination.

The primary differentiation between parts is the operating temperature range (WMC2P22K-F: -55°C to 125°C versus 224MWR250K: -40°C to 105°C) and physical dimensions. Applications requiring the full -55°C to 125°C temperature range require the WMC2P22K-F. Space-constrained board layouts benefit from the smaller 224MWR250K footprint (7.00mm x 19.00mm versus 9.70mm x 30.90mm). The 224MWR250K metallized polyester construction offers reduced ESR characteristics compared to the standard polyester dielectric of the WMC2P22K-F.

Frequently Asked Questions (FAQ)

Q: What are the critical electrical parameters for substituting the WMC2P22K-F? A: Capacitance must remain 0.22 µF with ±10% tolerance. The voltage rating must equal or exceed 200V DC. Polyester film or equivalent dielectric material is required. These parameters ensure functional equivalence in circuit operation.

Q: Can the 224MWR250K replace the WMC2P22K-F in all applications? A: The 224MWR250K meets electrical substitution criteria. However, applications requiring operation at temperatures below -40°C require the WMC2P22K-F due to its -55°C minimum operating temperature. Board layout space constraints may prevent use of the larger WMC2P22K-F dimensions in designs engineered for the 224MWR250K footprint.

Q: How do the physical dimensions affect substitution decisions? A: The WMC2P22K-F measures 9.70mm x 30.90mm while the 224MWR250K measures 7.00mm x 19.00mm. PCB layouts designed for one component may not accommodate the other without rework. Lead spacing and through-hole placement must be verified for compatibility.

Q: What is the significance of the metallized polyester construction in the 224MWR250K? A: Metallized polyester film construction provides lower equivalent series resistance (ESR) compared to standard polyester dielectric. This characteristic affects frequency response and power dissipation characteristics in the circuit. Component selection should confirm that ESR differences do not impact circuit performance.

Q: Are both parts suitable for high-voltage applications? A: Both parts maintain voltage ratings that exceed common industrial applications at 200V DC and 250V DC respectively. The 224MWR250K higher voltage rating provides additional safety margin in high-voltage designs. AC voltage ratings differ (125V versus 160V), which may be significant in AC applications.