CM04FC271JO3 Mica Capacitor 270 pF 300 V

Part Overview

The CM04FC271JO3 is a 270 pF mica capacitor rated for 300 V with radial through-hole mounting. This component is classified as Active product status and is manufactured by Cornell Dubilier Electronics (CDE). Mica capacitors in this specification are required for applications demanding stable capacitance across temperature extremes, low dielectric absorption, and minimal frequency drift. Finding equivalent substitute parts addresses inventory continuity, procurement flexibility, and sourcing alternatives when the primary part becomes unavailable.

Substiute Parts

CM04FC271JO3

Cornell Dubilier Electronics (CDE)In Stock: 838CM04FC271JO3 Datasheet

Current PartRFQ

CD10FC271JO3

Cornell Dubilier Electronics (CDE)In Stock: 993CD10FC271JO3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of mica capacitors in the CM04FC271JO3 category is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 270 pF (exact match required)
• Tolerance Band: ±5% (defines the acceptable capacitance range)
• Voltage Rating: 300 V (minimum rated voltage for the application)
• Dielectric Type: Mica (ensures temperature stability and low absorption characteristics)
• Operating Temperature Range: -55°C to 125°C (defines environmental suitability)
• Mounting Configuration: Through-hole radial (PCB footprint compatibility)
• Lead Spacing: 0.142" (3.60 mm) (mechanical fit requirement)
• Physical Envelope: 0.390" L × 0.220" W, height 0.382" max (board-level space constraint)

The CD10FC271JO3 qualifies as a parametric equivalent substitute because all critical electrical and mechanical parameters align with the original part specification.

Parameter Comparison

Engineering Selection Recommendations

Both the CM04FC271JO3 and CD10FC271JO3 are manufactured by Cornell Dubilier Electronics and maintain active product status. The substitute part CD10FC271JO3 is electrically and mechanically identical to the original specification across all critical parameters. Selection between these parts should be based on inventory availability and cost factors, as compliance profiles (RoHS non-compliance and REACH-affected status) and regulatory classifications (ECCN EAR99, HTSUS 8532.29.0020) are equivalent. The CD10 series substitute is available with 956 pieces in stock compared to 770 pieces for the CM04 series original part, providing sourcing flexibility.

Frequently Asked Questions (FAQ)

Can the CD10FC271JO3 be directly substituted for the CM04FC271JO3?

Yes. The CD10FC271JO3 meets all electrical specifications (270 pF capacitance, ±5% tolerance, 300 V rating) and mechanical requirements (through-hole radial mounting, 0.142" lead spacing, identical physical envelope). The parts are parametric equivalents suitable for direct board-level replacement.

What determines whether a mica capacitor qualifies as a substitute?

Substitution eligibility is determined by exact matching across capacitance value, tolerance band, voltage rating, dielectric type, operating temperature range, mounting configuration, lead spacing, and physical dimensions. Deviation in any of these parameters disqualifies a part from being classified as an equivalent substitute.

Are there any packaging or form factor differences between these parts?

No. Both parts feature radial through-hole packaging with identical lead spacing (0.142" / 3.60 mm), physical dimensions (0.390" L × 0.220" W), and maximum seated height (0.382"). PCB footprints and assembly procedures remain unchanged.

What is the impact of the different series designations (CM04 versus CD10)?

The series designation indicates the product line within Cornell Dubilier Electronics' mica capacitor portfolio. Despite different series classifications, the CM04FC271JO3 and CD10FC271JO3 share identical electrical performance and mechanical compatibility, enabling direct substitution based on parametric equivalence.

Do compliance and regulatory certifications differ between these parts?

No. Both parts carry identical RoHS non-compliance status, REACH-affected designation, ECCN classification (EAR99), and HTSUS code (8532.29.0020). Compliance profiles present no substitution barriers.