WMF05P47K Equivalent & Substitute Parts

Part Overview

The WMF05P47K is a 0.47 µF film capacitor rated for 50V DC with polyester dielectric material, manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, indicating discontinued production. The WMF series axial film capacitor is designed for general-purpose applications requiring stable capacitance and reliable performance across industrial temperature ranges. Due to its obsolete status, identifying equivalent substitute parts with identical electrical and mechanical specifications is essential for system maintenance, repair, and component sourcing.

Substiute Parts

WMF05P47K

Cornell Dubilier Electronics (CDE)In Stock: 1151WMF05P47K Datasheet

Current PartRFQ

WMF05P47K-F

Cornell Dubilier Electronics (CDE)In Stock: 771WMF05P47K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WMF05P47K are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

• Capacitance Value: 0.47 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating (DC): 50V (exact match required)
• Dielectric Material: Polyester (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Axial (exact match required)
• Physical Dimensions: 0.406" Dia × 1.063" L / 10.30mm × 27.00mm (exact match required)
• Termination: PC Pins (exact match required)

The WMF05P47K-F qualifies as a direct substitute because it maintains identical electrical specifications and mechanical form factor while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The WMF05P47K-F is the direct substitute for the obsolete WMF05P47K. Selection is based on the following engineering criteria:

Electrical Compatibility: The WMF05P47K-F maintains identical capacitance (0.47 µF), tolerance (±10%), voltage rating (50V DC), and dielectric material (polyester). These parameters ensure functional equivalence in circuit applications.

Mechanical Compatibility: Physical dimensions, mounting type (through hole), package configuration (axial), and termination style (PC pins) are identical, enabling direct board-level substitution without layout modifications.

Product Status: The WMF05P47K-F carries active product status, ensuring continued availability and supply chain reliability compared to the obsolete WMF05P47K.

Regulatory Compliance: The WMF05P47K-F is ROHS3 compliant, providing improved environmental and regulatory alignment compared to the non-compliant original part. Both parts maintain REACH Unaffected status.

Thermal Performance: Operating temperature range (-55°C to 125°C) is identical, confirming thermal performance equivalence across industrial applications.

Frequently Asked Questions (FAQ)

Q: Can the WMF05P47K-F be used as a direct replacement for the WMF05P47K?

A: Yes. The WMF05P47K-F is a direct substitute. All electrical parameters (capacitance, tolerance, voltage rating, dielectric material) and mechanical specifications (dimensions, mounting type, package, termination) are identical. The component can be substituted without circuit redesign or board layout modification.

Q: What is the primary difference between WMF05P47K and WMF05P47K-F?

A: The primary differences are product status and regulatory compliance. The WMF05P47K is obsolete and RoHS non-compliant, while the WMF05P47K-F is an active product with ROHS3 compliance. Electrical and mechanical specifications are identical.

Q: Are there any packaging differences between these parts?

A: The WMF05P47K is supplied in standard packaging, while the WMF05P47K-F is supplied in bulk packaging. Both maintain identical component specifications and physical form factor. Packaging differences do not affect electrical or mechanical performance.

Q: What parameters must match for a substitute to be compatible with the WMF05P47K?

A: Critical matching parameters are: capacitance value (0.47 µF), tolerance (±10%), DC voltage rating (50V), dielectric material (polyester), operating temperature range (-55°C to 125°C), mounting type (through hole), package configuration (axial), physical dimensions (0.406" Dia × 1.063" L), and termination style (PC pins).

Q: Is the WMF05P47K-F suitable for new designs?

A: Yes. The WMF05P47K-F is an active product with ROHS3 compliance, making it suitable for new designs requiring environmental and regulatory alignment. It provides the same electrical and mechanical performance as the obsolete WMF05P47K.

Q: Can the WMF05P47K be restocked, or should I transition to the WMF05P47K-F?

A: The WMF05P47K is classified as obsolete, indicating discontinued production. Transition to the WMF05P47K-F is recommended for long-term supply chain stability and regulatory compliance.