CD19FD681JO3 Mica Capacitor 680 pF 500V Radial Equivalent & Substitute Parts

Part Overview

The CD19FD681JO3 is a 680 pF mica capacitor rated for 500 V with radial through-hole mounting, manufactured by Cornell Dubilier Electronics (CDE) as part of the CD19 series. This component is classified as active and suitable for general-purpose applications requiring stable capacitance and high voltage performance across extended temperature ranges from -55°C to 125°C. Mica dielectric capacitors are selected for applications demanding low loss, excellent frequency stability, and reliable performance in demanding electrical environments. Substitute parts are identified to address component availability, compliance requirements, or inventory optimization while maintaining identical electrical and mechanical specifications.

Substiute Parts

CD19FD681JO3

Cornell Dubilier Electronics (CDE)In Stock: 792CD19FD681JO3 Datasheet

Current PartRFQ

CD19FD681JO3F

Cornell Dubilier Electronics (CDE)In Stock: 841CD19FD681JO3F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD19FD681JO3 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part CD19FD681JO3F maintains identical specifications for capacitance (680 pF), tolerance (±5%), rated voltage (500 V), dielectric material (mica), operating temperature range (-55°C to 125°C), mounting type (through hole), package configuration (radial), and lead spacing (0.343 in / 8.70 mm). Both parts belong to the CD19 series and are classified as active products. The substitution is valid because all functional and dimensional parameters remain unchanged between the main part and the substitute, ensuring direct interchangeability in circuit applications without modification to PCB layout, schematic design, or electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both CD19FD681JO3 and CD19FD681JO3F are electrically and mechanically equivalent 680 pF mica capacitors rated for 500 V operation. Selection between these parts is determined by regulatory and compliance requirements rather than functional performance.

CD19FD681JO3 is appropriate for applications where RoHS non-compliance is acceptable and REACH-affected material sourcing is permissible. This part maintains full availability and is suitable for legacy systems or applications without regulatory constraints.

CD19FD681JO3F is the required selection for applications subject to RoHS3 compliance mandates or REACH-unaffected material requirements. This variant ensures conformance to current environmental and hazardous substance regulations applicable in regulated markets and industries.

Both parts are active products with confirmed inventory availability. The choice between them depends exclusively on the regulatory framework governing the end application and target market.

Frequently Asked Questions (FAQ)

Q: Are CD19FD681JO3 and CD19FD681JO3F electrically identical?

A: Yes. Both parts have identical capacitance (680 pF), tolerance (±5%), rated voltage (500 V), temperature range (-55°C to 125°C), and all other electrical specifications. They are direct functional equivalents.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. The parts share identical mechanical dimensions, lead spacing (0.343 in / 8.70 mm), package configuration (radial), and mounting type (through hole). No PCB layout modification is required for substitution.

Q: What is the difference between CD19FD681JO3 and CD19FD681JO3F?

A: The primary differences are regulatory compliance status. CD19FD681JO3F is ROHS3 compliant and REACH unaffected, while CD19FD681JO3 is RoHS non-compliant and REACH affected. Electrical and mechanical performance are identical.

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

A: Selection depends on regulatory requirements. For applications requiring RoHS3 compliance or REACH-unaffected materials, specify CD19FD681JO3F. For applications without these constraints, either part is acceptable based on availability.

Q: Are both parts currently in stock?

A: Yes. CD19FD681JO3 has 777 pieces in stock, and CD19FD681JO3F has 808 pieces in stock as new original inventory.

Q: Can I substitute CD19FD681JO3 with CD19FD681JO3F in an existing assembly?

A: Yes, provided the application does not have specific restrictions against ROHS3-compliant components. The electrical and mechanical specifications are identical, ensuring full compatibility.