CD42FC683FO3F Mica Capacitor Equivalent & Substitute Parts

Part Overview

The CD42FC683FO3F is a 0.068 µF mica capacitor rated at 300 V with ±1% tolerance, manufactured by Cornell Dubilier Electronics (CDE) as part of the CD42 series. This through-hole radial component is designed for general-purpose applications requiring stable capacitance and low distortion characteristics inherent to mica dielectric technology. The part is currently in active production status with 846 units in stock. Identifying equivalent and substitute parts becomes necessary when managing inventory constraints, addressing supply chain disruptions, or accommodating design revisions that permit alternative qualified components.

Substiute Parts

CD42FC683FO3F

Cornell Dubilier Electronics (CDE)In Stock: 877CD42FC683FO3F Datasheet

Current PartRFQ

CD42FC683FO3

Cornell Dubilier Electronics (CDE)In Stock: 806CD42FC683FO3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD42FC683FO3F is determined by strict parametric equivalence across the following critical dimensions:

• Capacitance Value: 0.068 µF (exact match required)
• Tolerance: ±1% (determines acceptable deviation limits)
• Voltage Rating: 300 V minimum (must meet or exceed rated voltage)
• Dielectric Material: Mica (maintains electrical performance characteristics)
• Mounting Type: Through Hole (ensures physical installation compatibility)
• Package Configuration: Radial (confirms PCB footprint compatibility)
• Lead Spacing: 1.063" (27.00mm) (critical for board layout compatibility)
• Operating Temperature Range: -55°C to 125°C (defines thermal performance envelope)

The CD42FC683FO3 qualifies as a parametric equivalent, matching all electrical and mechanical specifications necessary for direct substitution in circuits designed for the CD42FC683FO3F.

Parameter Comparison

Engineering Selection Recommendations

Both the CD42FC683FO3F and CD42FC683FO3 are active production components from Cornell Dubilier Electronics with identical electrical and mechanical specifications. Selection between these parts should be based on the following documented differences:

CD42FC683FO3F: RoHS3 compliant, REACH unaffected status. This configuration is suitable for applications requiring regulatory compliance with current RoHS directives and applications in regulated markets unaffected by REACH restrictions.

CD42FC683FO3: RoHS non-compliant, REACH affected status. This variant is appropriate for legacy designs, applications exempted from RoHS requirements, or where historical component qualification permits its use.

Both parts maintain identical export classification (EAR99) and tariff codes (8532.29.0020), ensuring equivalent logistics handling and customs treatment.

Frequently Asked Questions (FAQ)

Q: Can the CD42FC683FO3 replace the CD42FC683FO3F in a new design? A: The CD42FC683FO3 is parametrically equivalent in all electrical and mechanical specifications. Selection depends on regulatory compliance requirements. Designs requiring RoHS3 compliance must use the CD42FC683FO3F; the substitute CD42FC683FO3 is suitable only where RoHS exemptions or legacy status applies.

Q: Does lead spacing differ between these parts? A: No. Both parts feature identical lead spacing of 1.063" (27.00mm), confirming PCB layout compatibility.

Q: Are the physical dimensions identical? A: Yes. Both parts share identical dimensions: 1.480" length × 0.469" width × 0.921" seated height maximum, ensuring equivalent board mounting and thermal performance.

Q: What determines whether substitution is acceptable? A: Substitution is determined by matching capacitance (0.068 µF), tolerance (±1%), voltage rating (300 V), dielectric material (mica), mounting type (through hole), package configuration (radial), and operating temperature range (-55°C to 125°C). The CD42FC683FO3 meets all these criteria. Regulatory compliance status (RoHS, REACH) must be evaluated separately based on application requirements.

Q: Does packaging differ between these parts? A: Both parts are supplied in bulk packaging and share identical radial case configuration and lead spacing.