CM05FD331GO3 Equivalent & Substitute Parts

Part Overview

The CM05FD331GO3 is a 330 pF mica capacitor rated for 500 V operation, manufactured by Cornell Dubilier Electronics (CDE). This through-hole radial component is designed for general-purpose applications requiring high voltage stability and precision capacitance values. The part is currently active in production with 1140 units in stock.

Equivalent substitute parts are identified when they maintain identical electrical specifications (capacitance, voltage rating, tolerance, and dielectric material) and compatible mechanical parameters (mounting type, package configuration, and lead spacing). Substitute identification is necessary to ensure design flexibility, manage supply chain continuity, and accommodate component availability variations across different procurement channels.

Substiute Parts

CM05FD331GO3

Cornell Dubilier Electronics (CDE)In Stock: 1233CM05FD331GO3 Datasheet

Current PartRFQ

CD15FD331GO3F

Cornell Dubilier Electronics (CDE)In Stock: 869CD15FD331GO3F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CM05FD331GO3 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance value: 330 pF (exact match)
• Tolerance: ±2% (exact match)
• Voltage rating: 500 V (exact match or higher)
• Dielectric material: Mica (exact match)

Mechanical Compatibility Requirements:

• Mounting type: Through Hole (exact match)
• Package configuration: Radial (exact match)
• Lead spacing: 0.232" (5.90mm) (exact match)
• Physical dimensions: 0.469" L x 0.209" W, Height 0.390" max (exact match)

Operating Conditions:

• Temperature range: -55°C ~ 125°C (exact match or wider range)

The substitute part CD15FD331GO3F meets all electrical and mechanical equivalence criteria, differing only in series designation (CD15 versus CM05) and compliance certifications, which do not affect functional interchangeability in the circuit.

Parameter Comparison

Engineering Selection Recommendations

CM05FD331GO3 Selection Criteria:

• Applications where RoHS non-compliance is acceptable or required by design specification
• Designs with REACH-affected component allowances
• Existing inventory management where CM05 series stock is prioritized
• Current production runs with established supply chain for CM05 series

CD15FD331GO3F Selection Criteria:

• Applications requiring ROHS3 compliance certification
• Designs subject to REACH compliance requirements
• New product development targeting modern regulatory standards
• Supply chain scenarios where CD15 series availability is preferred

Both parts are functionally equivalent for circuit operation. Selection between CM05FD331GO3 and CD15FD331GO3F is determined by regulatory compliance requirements and supply chain availability, not by electrical or mechanical performance differences.

Frequently Asked Questions (FAQ)

Q: Can CD15FD331GO3F replace CM05FD331GO3 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The CD15FD331GO3F can be substituted directly into any circuit designed for the CM05FD331GO3 without circuit modifications or performance changes. Substitution is limited only by regulatory compliance requirements of the end application.

Q: What is the difference between CM05 and CD15 series designations?

A: The series designation indicates the product line within Cornell Dubilier Electronics' mica capacitor portfolio. Both CM05 and CD15 series use identical mica dielectric technology and manufacturing processes. The series difference does not affect electrical performance, capacitance accuracy, voltage rating, or temperature stability.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both CM05FD331GO3 and CD15FD331GO3F have identical physical dimensions: 0.469" length, 0.209" width, and 0.390" maximum seated height. Lead spacing is 0.232" (5.90mm) for both parts. Direct board-level substitution is possible without PCB layout modifications.

Q: What compliance differences exist between these parts?

A: CM05FD331GO3 is RoHS non-compliant and REACH-affected. CD15FD331GO3F is ROHS3 compliant and REACH-unaffected. For applications requiring modern regulatory compliance, CD15FD331GO3F is the appropriate selection. For legacy designs or applications with specific compliance exemptions, CM05FD331GO3 remains valid.

Q: Are tolerance and temperature specifications identical?

A: Yes. Both parts maintain ±2% capacitance tolerance and operate across the identical temperature range of -55°C to 125°C. Electrical performance and stability characteristics are equivalent across all operating conditions.

Q: What is the lead spacing significance for PCB design?

A: Lead spacing of 0.232" (5.90mm) determines the distance between through-hole pads on the printed circuit board. Both parts use identical lead spacing, ensuring direct compatibility with existing PCB designs without pad repositioning or layout changes.