WMC08S47K-F Equivalent & Substitute Parts

Part Overview

The WMC08S47K-F is a 0.047 µF polyester film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 80V DC operation with axial through-hole mounting. This Active product is designed for applications requiring high pulse tolerance and fast voltage transitions (DV/DT). Alternative equivalent parts may be required due to application-specific voltage requirements, physical space constraints, or inventory availability.

Substiute Parts

WMC08S47K-F

Cornell Dubilier Electronics (CDE)In Stock: 951WMC08S47K-F Datasheet

Current PartRFQ

WMF1S47K-F

Cornell Dubilier Electronics (CDE)In Stock: 1726WMF1S47K-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WMC08S47K-F with alternative Cornell Dubilier Electronics film capacitors is permitted when the following conditions are met:

Critical Parameters for Substitution:

• Capacitance Value: Must remain 0.047 µF
• Tolerance: Must be ±10%
• Dielectric Material: Must be Polyester
• Mounting Type: Must be Through Hole
• Package / Case: Must be Axial
• Termination: Must be PC Pins

Allowable Parameter Variations:

• Voltage Rating - DC: May be equal to or greater than 80V
• Voltage Rating - AC: May be equal to or greater than 50V
• Operating Temperature Range: Must encompass -55°C to 125°C
• Physical Dimensions: May vary within industry-standard axial package tolerances
• Product Status: Must be Active

The WMF1S47K-F meets these substitution criteria with an increased DC voltage rating of 100V, allowing operation in higher-voltage applications while maintaining electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the WMC08S47K-F and WMF1S47K-F are Active products with full ROHS3 compliance and REACH Unaffected status, suitable for applications requiring regulatory adherence.

WMC08S47K-F Selection: Use when designs are constrained to an 80V DC maximum operating voltage and require the smaller axial package form factor (5.80mm diameter, 15.10mm length).

WMF1S47K-F Selection: Use when applications operate at voltages up to 100V DC or when higher voltage margin is required for system reliability. Note the increased physical dimensions (6.50mm diameter, 20.60mm length) must be accommodated within the PCB layout.

Both parts share identical capacitance, tolerance, dielectric material, and temperature operating range, establishing full electrical functional equivalence within their respective voltage ratings.

Frequently Asked Questions (FAQ)

Q: Can WMF1S47K-F replace WMC08S47K-F in all applications? A: WMF1S47K-F is electrically compatible with WMC08S47K-F provided that the increased physical dimensions (0.256" Dia x 0.811" L versus 0.228" Dia x 0.594" L) can be accommodated on the circuit board. The higher 100V DC rating introduces no compatibility issues for applications originally rated at 80V DC.

Q: Are there any differences in film capacitor performance between these parts? A: Both parts utilize polyester dielectric material with identical capacitance (0.047 µF) and tolerance (±10%). Performance differences are limited to voltage rating and physical package size. Operating temperature range remains -55°C to 125°C for both parts.

Q: Do both parts meet current compliance requirements? A: Both WMC08S47K-F and WMF1S47K-F are ROHS3 Compliant and REACH Unaffected, meeting current environmental and hazardous substance regulations.

Q: What is the impact of the different axial package sizes on circuit board design? A: The WMF1S47K-F requires additional PCB space due to its larger diameter and length. Design layouts must verify clearance for component placement, lead routing, and heat dissipation paths before substitution.

Q: Can these polyester film capacitors be used interchangeably for high-pulse applications? A: The WMC08S47K-F is specified for high-pulse and DV/DT applications. The WMF1S47K-F is specified for general-purpose applications. Application suitability must be confirmed based on circuit requirements and pulse characteristics.