CD15FD251JO3F Equivalent & Substitute Parts

Part Overview

The CD15FD251JO3F is a 250 pF mica capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 500 V operation in radial through-hole configuration. This component is classified as Active product status and is 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 performance across extended temperature ranges from -55°C to 125°C. Substitute parts are identified when inventory constraints, compliance requirements, or specific application needs necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

CD15FD251JO3F

Cornell Dubilier Electronics (CDE)In Stock: 933CD15FD251JO3F Datasheet

Current PartRFQ

CD15FD251JO3

Cornell Dubilier Electronics (CDE)In Stock: 1224CD15FD251JO3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD15FD251JO3F are identified based on strict electrical and mechanical parameter matching. The substitution logic requires:

Mandatory Matching Parameters:

• Capacitance value: 250 pF (exact match)
• Tolerance: ±5% (exact match)
• Voltage rating: 500 V (minimum requirement; higher ratings acceptable)
• Dielectric material: Mica (exact match for electrical characteristics)
• Mounting type: Through Hole (exact match for assembly compatibility)
• Package configuration: Radial (exact match for physical form factor)
• Lead spacing: 0.232" (5.90mm) (exact match for PCB footprint)
• Operating temperature range: -55°C to 125°C (minimum requirement; wider ranges acceptable)

Parts meeting all mandatory parameters are classified as parametric equivalents and direct substitutes. Variations in compliance certifications (RoHS status, REACH status) or inventory levels do not affect electrical or mechanical substitutability but may influence procurement decisions based on regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

CD15FD251JO3F (Primary Selection): The CD15FD251JO3F is the preferred selection for applications requiring ROHS3 compliance and REACH Unaffected status. This part maintains full regulatory alignment with current environmental and hazardous substance directives. Current inventory of 892 units supports standard procurement timelines.

CD15FD251JO3 (Alternative Selection): The CD15FD251JO3 is electrically and mechanically identical to the primary part and functions as a direct substitute in applications where RoHS3 compliance and REACH Unaffected status are not regulatory requirements. This part is suitable for legacy systems, non-regulated applications, or situations where compliance requirements differ from current standards. Higher inventory availability (1179 units) may support expedited procurement when needed.

Compliance Considerations: Selection between these parts must account for end-application regulatory requirements. Applications subject to RoHS3 or REACH regulations require the CD15FD251JO3F. Applications without such regulatory constraints may utilize either part based on availability and procurement strategy.

Frequently Asked Questions (FAQ)

Q: Can CD15FD251JO3 be used as a direct replacement for CD15FD251JO3F?

A: Yes. The CD15FD251JO3 is electrically and mechanically identical to the CD15FD251JO3F. All critical parameters—capacitance, tolerance, voltage rating, dielectric material, mounting type, package configuration, lead spacing, and operating temperature range—are identical. The parts differ only in compliance certifications (RoHS status and REACH status). Selection depends on regulatory requirements of the end application.

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by exact matching of: capacitance value (250 pF), tolerance (±5%), voltage rating (500 V), dielectric material (Mica), mounting type (Through Hole), package configuration (Radial), lead spacing (0.232" / 5.90mm), and operating temperature range (-55°C to 125°C). Any deviation in these parameters disqualifies a part as a substitute.

Q: Are there physical differences between CD15FD251JO3F and CD15FD251JO3?

A: No. Both parts share identical physical dimensions: 0.469" L x 0.209" W (11.90mm x 5.30mm) body size, 0.390" (9.90mm) maximum seated height, and 0.232" (5.90mm) lead spacing. They are mechanically interchangeable in PCB assemblies.

Q: What is the significance of RoHS3 compliance for this capacitor?

A: RoHS3 compliance indicates the part meets current Restriction of Hazardous Substances directives. The CD15FD251JO3F carries ROHS3 Compliant status, while the CD15FD251JO3 is RoHS non-compliant. Applications subject to RoHS regulations or customer requirements must use the ROHS3 Compliant version.

Q: What does REACH Unaffected status mean?

A: REACH Unaffected status indicates the part is not subject to REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulatory requirements. The CD15FD251JO3F carries REACH Unaffected status, while the CD15FD251JO3 is REACH Affected. Applications in regulated markets may require the REACH Unaffected version.

Q: Can I use a higher voltage-rated capacitor as a substitute?

A: Substitution logic for this product category requires exact voltage rating match (500 V). Higher voltage ratings are not acceptable substitutes as they may alter circuit performance characteristics and component selection criteria.

Q: Are there inventory implications for selecting between these parts?

A: Yes. The CD15FD251JO3F has 892 units in stock, while the CD15FD251JO3 has 1179 units available. For applications without compliance constraints, the higher inventory of CD15FD251JO3 may support faster procurement or larger order quantities.