CD42FD203JO3F Equivalent & Substitute Parts

Part Overview

The CD42FD203JO3F is a 0.02 µF mica capacitor rated for 500 V operation in a radial through-hole configuration, manufactured by Cornell Dubilier Electronics (CDE). This component is classified as active and suitable for general-purpose applications requiring stable capacitance and high voltage performance. Mica dielectric capacitors are selected for applications demanding low loss, excellent frequency stability, and reliable operation across extended temperature ranges. Substitute parts are identified to address inventory availability, compliance requirements, or specific application constraints while maintaining electrical and mechanical compatibility.

Substiute Parts

CD42FD203JO3F

Cornell Dubilier Electronics (CDE)In Stock: 1078CD42FD203JO3F Datasheet

Current PartRFQ

CD42FD203JO3

Cornell Dubilier Electronics (CDE)In Stock: 893CD42FD203JO3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD42FD203JO3F is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 0.02 µF (exact match required)
• Tolerance: ±5% (exact match required)
• Voltage Rating: 500 V (exact match required)
• Dielectric Material: Mica (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package Configuration: Radial (exact match required)
• Lead Spacing: 1.063" / 27.00 mm (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)

The substitute part CD42FD203JO3 meets all electrical and mechanical parameters specified above. Differences in RoHS compliance status and REACH classification do not affect functional equivalence but must be evaluated against application-specific regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

CD42FD203JO3F is the primary selection for applications requiring ROHS3 compliance and REACH unaffected status. This part is suitable for regulated industries and applications subject to environmental compliance mandates.

CD42FD203JO3 is functionally equivalent and electrically interchangeable with the main part. Selection of this substitute is appropriate when RoHS3 compliance is not a requirement and REACH affected status is acceptable within the application's regulatory framework. Both parts are active products from the same manufacturer and series, ensuring consistent performance and availability.

The choice between these parts depends solely on compliance requirements specific to the end application and regional regulations. No electrical or mechanical performance differences exist between the two options.

Frequently Asked Questions (FAQ)

Q: Are CD42FD203JO3F and CD42FD203JO3 electrically interchangeable?

A: Yes. Both parts are identical in capacitance (0.02 µF), tolerance (±5%), voltage rating (500 V), dielectric material (mica), operating temperature range (-55°C to 125°C), and all mechanical specifications including lead spacing and package dimensions.

Q: What is the difference between these two parts?

A: The primary differences are compliance certifications. CD42FD203JO3F is ROHS3 compliant and REACH unaffected, while CD42FD203JO3 is RoHS non-compliant and REACH affected. Electrical and mechanical performance are identical.

Q: Can I use CD42FD203JO3 in place of CD42FD203JO3F?

A: Functional substitution is possible only if the application does not require ROHS3 compliance or REACH unaffected status. Verify compliance requirements for your specific application before substitution.

Q: Will the physical dimensions fit my PCB layout?

A: Both parts share identical dimensions: 1.421" length x 0.299" width with 0.870" maximum seated height and 1.063" lead spacing. PCB layout compatibility is identical.

Q: Are both parts currently in stock?

A: CD42FD203JO3F has 997 pieces in stock. CD42FD203JO3 has 839 pieces in stock. Inventory levels are subject to change.

Q: What applications are these capacitors suitable for?

A: These mica capacitors are classified for general-purpose applications. The 500 V rating and mica dielectric provide stable performance in high-voltage circuits requiring low loss and excellent frequency stability across the -55°C to 125°C operating range.

Q: Can I mix these parts in the same circuit or assembly?

A: Yes, from an electrical and mechanical standpoint. However, if the assembly or end product requires uniform compliance certification, mixing parts with different RoHS and REACH status should be avoided to maintain consistent regulatory documentation.