CD15FD121FO3 Equivalent & Substitute Parts

Part Overview

The CD15FD121FO3 is a 120 pF mica capacitor rated for 500 V with ±1% tolerance, manufactured by Cornell Dubilier Electronics (CDE). This through-hole radial component is designed for general-purpose applications requiring high stability and reliability across the operating temperature range of -55°C to 125°C. The part is currently active in production. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and compliance requirements across different regulatory environments.

Substiute Parts

CD15FD121FO3

Cornell Dubilier Electronics (CDE)In Stock: 1007CD15FD121FO3 Datasheet

Current PartRFQ

CD15FD121FO3F

Cornell Dubilier Electronics (CDE)In Stock: 1611CD15FD121FO3F Datasheet

Parametric EquivalentRFQ

CM05FD121FO3

Cornell Dubilier Electronics (CDE)In Stock: 1252CM05FD121FO3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD15FD121FO3 is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 120 pF (exact match required)
• Tolerance: ±1% (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: 0.232" (5.90mm) (exact match required)
• Physical Dimensions: 0.461" L x 0.181" W, Height 0.370" max (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)

All identified substitute parts meet these criteria. Variations in series designation (CD15 versus CM05), RoHS compliance status, and REACH classification do not affect electrical or mechanical interchangeability for direct component substitution in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

CD15FD121FO3F is the primary substitute for applications requiring RoHS3 compliance and REACH unaffected status. This part maintains identical electrical and mechanical specifications while offering improved regulatory compliance posture. Higher inventory availability (1513 units) supports procurement continuity.

CM05FD121FO3 is an alternative substitute for applications where RoHS and REACH compliance requirements are not mandated. This part is from the CM05 series and maintains full electrical and mechanical equivalence to the CD15FD121FO3. Inventory availability is 1224 units.

Selection between substitutes should be based on regulatory requirements applicable to the end application and system design. All three parts are electrically and mechanically interchangeable for direct circuit substitution.

Frequently Asked Questions (FAQ)

Q: Can CD15FD121FO3F be used as a direct replacement for CD15FD121FO3?

A: Yes. CD15FD121FO3F is electrically and mechanically equivalent. The primary difference is RoHS3 compliance status. Both parts share identical capacitance (120 pF), tolerance (±1%), voltage rating (500 V), physical dimensions, and lead spacing.

Q: What is the difference between CD15FD121FO3 and CM05FD121FO3?

A: Both parts are electrically and mechanically equivalent with identical electrical specifications. The difference is the series designation (CD15 versus CM05). CM05FD121FO3 has Moisture Sensitivity Level (MSL) rated at 1 (Unlimited), while CD15FD121FO3 has MSL listed as Not Applicable.

Q: Are all three parts suitable for the same PCB layout?

A: Yes. All three parts have identical lead spacing (0.232" / 5.90mm), physical dimensions (0.461" L x 0.181" W), and maximum seated height (0.370" / 9.40mm). PCB footprints and mounting holes are directly compatible.

Q: Which substitute should I select for a new design?

A: Selection depends on regulatory requirements. For RoHS3 and REACH compliance requirements, use CD15FD121FO3F. For applications without these compliance mandates, CD15FD121FO3 or CM05FD121FO3 are suitable alternatives.

Q: Do these parts have different temperature performance?

A: No. All three parts operate across the identical temperature range of -55°C to 125°C with the same dielectric material (Mica) and tolerance specification (±1%).