CD15FD121JO3F Equivalent & Substitute Parts

Part Overview

The CD15FD121JO3F is a 120 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

CD15FD121JO3F

Cornell Dubilier Electronics (CDE)In Stock: 991CD15FD121JO3F Datasheet

Current PartRFQ

CD15FD121JO3

Cornell Dubilier Electronics (CDE)In Stock: 1160CD15FD121JO3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD15FD121JO3F is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must remain constant for a part to function as a direct substitute:

Electrical Parameters (Non-negotiable):

• Capacitance value: 120 pF
• Tolerance: ±5%
• Voltage rating: 500 V (minimum)
• Dielectric material: Mica

Mechanical Parameters (Non-negotiable):

• Mounting type: Through Hole
• Package configuration: Radial
• Lead spacing: 0.232" (5.90mm)
• Physical dimensions: 0.461" L x 0.181" W (11.70mm x 4.60mm)
• Maximum seated height: 0.370" (9.40mm)

Compliance and Regulatory Parameters (Application-dependent):

• RoHS compliance status
• REACH compliance status
• Moisture sensitivity level

Substitute parts identified within this category maintain identical electrical performance and physical compatibility, ensuring direct replacement capability in circuit applications without design modification or PCB rework.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (CD15FD121JO3F): The CD15FD121JO3F is the preferred selection for applications subject to RoHS3 compliance requirements or REACH-regulated environments. This part carries active product status with confirmed ROHS3 compliance and REACH Unaffected classification, ensuring compatibility with modern regulatory frameworks and supply chain requirements. Current inventory of 933 units supports standard production volumes.

Alternative Selection (CD15FD121JO3): The CD15FD121JO3 serves as a functional equivalent for applications where RoHS3 compliance is not mandated and REACH-affected status is acceptable. This variant maintains identical electrical and mechanical specifications, ensuring direct circuit compatibility. The higher inventory level (1145 units) may provide supply chain advantages for high-volume requirements. Selection of this part requires verification that the application environment and end-use regulations permit RoHS non-compliant components.

Compliance Considerations: Applications destined for markets with mandatory RoHS3 enforcement or REACH-restricted substance limitations must utilize CD15FD121JO3F. Applications in non-regulated or legacy systems may utilize either variant based on inventory and cost considerations.

Frequently Asked Questions (FAQ)

Q: Can CD15FD121JO3 be used as a direct replacement for CD15FD121JO3F?

A: CD15FD121JO3 is electrically and mechanically equivalent to CD15FD121JO3F. Both parts share identical capacitance (120 pF), tolerance (±5%), voltage rating (500 V), dielectric material (mica), mounting configuration (through-hole radial), and physical dimensions. Direct PCB substitution is possible without design modification. However, compliance status differs: CD15FD121JO3F is ROHS3 compliant and REACH unaffected, while CD15FD121JO3 is RoHS non-compliant and REACH affected. Substitution eligibility depends on application regulatory requirements.

Q: What are the critical parameters that must match for substitution?

A: Substitution requires exact matching of: capacitance value (120 pF), tolerance (±5%), voltage rating (500 V), dielectric type (mica), mounting method (through-hole), package style (radial), lead spacing (0.232" / 5.90mm), and physical dimensions (0.461" L x 0.181" W / 11.70mm x 4.60mm). All these parameters are identical between the main part and substitute, confirming functional equivalence.

Q: Are there physical footprint differences between these parts?

A: No. Both CD15FD121JO3F and CD15FD121JO3 share identical physical specifications: length 0.461" (11.70mm), width 0.181" (4.60mm), maximum seated height 0.370" (9.40mm), and lead spacing 0.232" (5.90mm). PCB footprints are identical, and no layout modifications are required for substitution.

Q: What is the difference in compliance status?

A: CD15FD121JO3F carries ROHS3 compliance certification and REACH unaffected status, suitable for regulated markets. CD15FD121JO3 is RoHS non-compliant and REACH affected, requiring verification of application regulatory environment before selection. Compliance status does not affect electrical or mechanical performance.

Q: Which part should be selected for new designs?

A: For new designs subject to RoHS3 or REACH regulations, CD15FD121JO3F is the appropriate selection. For legacy systems or non-regulated applications, either part is functionally suitable. Verify end-use market requirements and supply chain compliance obligations before final part selection.

Q: Is there a performance difference between these capacitors?

A: No performance difference exists. Both parts are manufactured by Cornell Dubilier Electronics within the CD15 series and maintain identical electrical characteristics: 120 pF capacitance, ±5% tolerance, 500 V rating, mica dielectric, and -55°C to 125°C operating range. Performance in circuit applications is equivalent.