CD19FD681JO3F Equivalent & Substitute Parts

Part Overview

The CD19FD681JO3F is a 680 pF mica capacitor rated for 500 V operation in a radial through-hole configuration, manufactured by Cornell Dubilier Electronics (CDE). This component is classified as active and suitable for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. Substitute parts are identified based on matching electrical specifications, mechanical dimensions, and mounting characteristics to ensure direct functional equivalence in circuit applications.

Substiute Parts

CD19FD681JO3F

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

Current PartRFQ

CD19FD681JO3

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD19FD681JO3F is determined by equivalence across the following critical parameters:

• Capacitance Value: 680 pF (exact match required)
• Tolerance: ±5% (defines acceptable capacitance range)
• Voltage Rating: 500 V (minimum voltage specification for circuit operation)
• Dielectric Material: Mica (determines frequency response and stability characteristics)
• Mounting Configuration: Through Hole Radial (ensures PCB compatibility)
• Lead Spacing: 0.343" (8.70mm) (defines hole pattern compatibility)
• Physical Dimensions: 0.650" L x 0.209" W x 0.512" H max (ensures mechanical fit in enclosures and on PCBs)
• Operating Temperature Range: -55°C ~ 125°C (defines environmental suitability)

Parts matching all these parameters are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The CD19FD681JO3F and CD19FD681JO3 are parametric equivalents with identical electrical and mechanical specifications. Both parts are active products from the CD19 series manufactured by Cornell Dubilier Electronics.

Compliance Considerations:

The primary distinction between these parts is regulatory compliance status. The CD19FD681JO3F carries ROHS3 compliance and REACH Unaffected status, making it suitable for applications subject to European Union environmental directives. The CD19FD681JO3 is RoHS non-compliant and REACH Affected, restricting its use in regulated markets and applications requiring compliance documentation.

For new designs and applications requiring regulatory compliance, the CD19FD681JO3F is the appropriate selection. The CD19FD681JO3 remains functionally equivalent for legacy systems and applications without compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can CD19FD681JO3 be used as a direct replacement for CD19FD681JO3F?

A: Both parts are electrically and mechanically identical with matching capacitance (680 pF), tolerance (±5%), voltage rating (500 V), dielectric material (Mica), mounting type (Through Hole Radial), lead spacing (0.343"), and physical dimensions. Functional substitution is possible. However, regulatory compliance differs: CD19FD681JO3F is ROHS3 compliant and REACH Unaffected, while CD19FD681JO3 is RoHS non-compliant and REACH Affected. Selection depends on application compliance requirements.

Q: What are the critical parameters for substituting this mica capacitor?

A: Substitution requires matching: capacitance value (680 pF), tolerance (±5%), voltage rating (500 V), dielectric material (Mica), mounting configuration (Through Hole Radial), lead spacing (0.343" / 8.70mm), and physical dimensions (0.650" L x 0.209" W x 0.512" H max). Operating temperature range (-55°C ~ 125°C) must also be maintained.

Q: Are there any mechanical compatibility issues between these parts?

A: No. Both parts share identical lead spacing (0.343" / 8.70mm), body dimensions (0.650" L x 0.209" W), and maximum seated height (0.512" / 13.00mm). PCB hole patterns and mounting footprints are directly compatible.

Q: Which part should be selected for new product designs?

A: The CD19FD681JO3F is recommended for new designs due to ROHS3 compliance and REACH Unaffected status, ensuring compatibility with current environmental regulations and supply chain requirements.

Q: What is the difference between the part numbers CD19FD681JO3F and CD19FD681JO3?

A: The suffix "F" in CD19FD681JO3F indicates ROHS3 compliance. The base part number CD19FD681JO3 represents the non-compliant version. All other electrical and mechanical specifications are identical.