CD42FD473FO3 Equivalent & Substitute Parts

Part Overview

The CD42FD473FO3 is a 0.047 µF mica capacitor rated for 500 V with ±1% tolerance, manufactured by Cornell Dubilier Electronics (CDE) in the CD42 series. This radial through-hole component is designed for general-purpose applications requiring stable capacitance and high voltage performance across an operating temperature range of -55°C to 125°C. The part is currently active in production with 817 units in stock. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate varying compliance requirements across different applications and regions.

Substiute Parts

CD42FD473FO3

Cornell Dubilier Electronics (CDE)In Stock: 908CD42FD473FO3 Datasheet

Current PartRFQ

CD42FD473FO3F

Cornell Dubilier Electronics (CDE)In Stock: 878CD42FD473FO3F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD42FD473FO3 are identified based on strict electrical and mechanical parameter matching. The substitution logic requires that all critical parameters remain identical: capacitance value (0.047 µF), tolerance specification (±1%), rated voltage (500 V), dielectric material (mica), mounting type (through hole), package configuration (radial), lead spacing (1.063" / 27.00 mm), and operating temperature range (-55°C to 125°C).

The CD42 series designation and general-purpose feature classification further define the product family. Substitute parts must maintain these characteristics to ensure functional equivalence in circuit applications. Variations in regulatory compliance status (RoHS, REACH) and packaging conditions do not affect electrical or mechanical compatibility and therefore do not disqualify a part from substitution consideration.

Parameter Comparison

Engineering Selection Recommendations

The CD42FD473FO3F is a direct parametric equivalent to the CD42FD473FO3. Both parts are manufactured by Cornell Dubilier Electronics and share identical electrical and mechanical specifications across all critical parameters: capacitance, tolerance, voltage rating, dielectric material, mounting configuration, and thermal operating range.

The primary distinction between these parts is regulatory compliance status. The CD42FD473FO3F carries ROHS3 compliance and REACH unaffected status, whereas the CD42FD473FO3 is RoHS non-compliant and REACH affected. Selection between these parts should be based on the specific regulatory requirements of the target application and end-use region.

Both parts are active products with adequate inventory availability. The choice between them does not involve trade-offs in electrical performance, mechanical fit, or thermal characteristics. Applications requiring RoHS3 compliance should specify the CD42FD473FO3F variant. Applications without such compliance mandates may utilize either part interchangeably from a functional standpoint.

Frequently Asked Questions (FAQ)

Q: Can the CD42FD473FO3F be used as a direct replacement for the CD42FD473FO3 in existing designs?

A: Yes. The CD42FD473FO3F is electrically and mechanically identical to the CD42FD473FO3. All critical parameters—capacitance, tolerance, voltage rating, dielectric material, mounting type, package configuration, lead spacing, and operating temperature range—are identical. The parts are interchangeable from a circuit design and PCB layout perspective.

Q: What is the difference between these two part numbers?

A: The parts differ only in regulatory compliance status. The CD42FD473FO3F is ROHS3 compliant and REACH unaffected, while the CD42FD473FO3 is RoHS non-compliant and REACH affected. All electrical and mechanical characteristics are identical.

Q: Which part should I specify for a new design?

A: Specify the CD42FD473FO3F if your application or target market requires RoHS3 compliance or REACH compliance. If no such regulatory requirements apply, either part may be specified. The CD42FD473FO3F is the preferred choice for designs intended for distribution in regions with strict environmental compliance mandates.

Q: Are the physical dimensions and lead spacing identical?

A: Yes. Both parts have identical dimensions: 1.469" L x 0.449" W (37.30 mm x 11.40 mm), maximum seated height of 0.909" (23.10 mm), and lead spacing of 1.063" (27.00 mm). They are mechanically interchangeable on PCBs designed for either part.

Q: Can I mix these parts in the same production batch?

A: From a functional and mechanical standpoint, yes. However, if your design documentation or supply chain management specifies a particular part number, adherence to that specification is recommended for traceability and compliance documentation purposes.

Q: What is the operating temperature range for both parts?

A: Both the CD42FD473FO3 and CD42FD473FO3F operate across the identical temperature range of -55°C to 125°C. Thermal performance and derating characteristics are equivalent.

Q: Are there any performance differences in high-voltage applications?

A: No. Both parts are rated for 500 V with identical voltage performance characteristics. The mica dielectric material and construction are identical, ensuring equivalent behavior in high-voltage circuit applications.