CD19FD302JO3 Mica Capacitor Equivalent & Substitute Parts

Part Overview

The CD19FD302JO3 is a 3000 pF mica capacitor manufactured by Cornell Dubilier Electronics (CDE) in the CD19 series. This through-hole radial component operates at 500 V rated voltage with ±5% tolerance and is classified as a general-purpose capacitor. The part is currently active in production with 733 units in stock. Identification of equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and address specific compliance or regulatory requirements in applications where the original part may be unavailable or where alternative certifications are required.

Substiute Parts

CD19FD302JO3

Cornell Dubilier Electronics (CDE)In Stock: 784CD19FD302JO3 Datasheet

Current PartRFQ

CD19FD302JO3F

Cornell Dubilier Electronics (CDE)In Stock: 824CD19FD302JO3F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD19FD302JO3 is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 3000 pF (exact match required)
• Tolerance: ±5% (exact match required)
• Voltage Rating: 500 V (exact match required)
• Dielectric Type: Mica (exact match required)
• Mounting Configuration: Through Hole Radial (exact match required)
• Lead Spacing: 0.343" (8.70mm) (exact match required)
• Physical Dimensions: 0.681" L x 0.280" W, Height 0.551" max (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)

The substitute part CD19FD302JO3F meets all electrical and mechanical parameters identically to the main part. The primary distinction between these parts lies in regulatory compliance status, specifically RoHS certification and REACH classification.

Parameter Comparison

Engineering Selection Recommendations

CD19FD302JO3 is appropriate for applications where RoHS non-compliance is acceptable and REACH-affected material sourcing is permissible. This part maintains active production status and has adequate inventory availability.

CD19FD302JO3F is the required selection for designs subject to RoHS3 compliance mandates or applications requiring REACH-unaffected component sourcing. This variant is functionally and mechanically identical to the main part and is also in active production with comparable inventory levels.

Selection between these two parts should be determined solely by regulatory and compliance requirements applicable to the end application. No electrical or mechanical performance differences exist between the two variants.

Frequently Asked Questions (FAQ)

Q: Are CD19FD302JO3 and CD19FD302JO3F electrically interchangeable?

A: Yes. Both parts are identical in capacitance (3000 pF), tolerance (±5%), voltage rating (500 V), dielectric material (mica), and operating temperature range (-55°C to 125°C). They perform identically in circuit applications.

Q: Are these parts mechanically interchangeable?

A: Yes. Both parts share identical physical dimensions (0.681" L x 0.280" W, height 0.551" max), lead spacing (0.343" / 8.70mm), mounting type (through-hole radial), and package configuration. They are direct drop-in replacements on PCBs designed for either part number.

Q: What is the difference between CD19FD302JO3 and CD19FD302JO3F?

A: The primary differences are regulatory compliance certifications. CD19FD302JO3F is ROHS3 compliant and REACH unaffected, while CD19FD302JO3 is RoHS non-compliant and REACH affected. All electrical and mechanical specifications are identical.

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

A: Specify CD19FD302JO3F if your application or market requires RoHS3 compliance or REACH-unaffected component sourcing. Specify CD19FD302JO3 only if your application explicitly permits RoHS non-compliant components and REACH-affected materials.

Q: Can I use CD19FD302JO3F as a substitute for CD19FD302JO3 in existing designs?

A: Yes. CD19FD302JO3F is a direct substitute with no electrical or mechanical differences. It is suitable for retrofit or replacement applications without circuit redesign.

Q: Are both parts currently available?

A: Yes. CD19FD302JO3 has 733 units in stock, and CD19FD302JO3F has 777 units in stock, both from Cornell Dubilier Electronics.