CMR03F331JOYM Equivalent & Substitute Parts

Part Overview

The CMR03F331JOYM is a 330 pF mica capacitor rated for 50 V operation in a radial through-hole package. Manufactured by Cornell Dubilier Electronics (CDE), this component is classified as Active product status and is RoHS3 compliant. Mica capacitors in this specification are used in general-purpose applications requiring stable capacitance across temperature ranges and reliable performance in high-frequency circuits. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate varying compliance requirements across different manufacturing regions and end-use applications.

Substiute Parts

CMR03F331JOYM

Cornell Dubilier Electronics (CDE)In Stock: 726CMR03F331JOYM Datasheet

Current PartRFQ

CD5FY331JO3

Cornell Dubilier Electronics (CDE)In Stock: 1016CD5FY331JO3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CMR03F331JOYM is based on strict electrical and mechanical parameter matching. The following criteria determine valid substitutes:

Electrical Parameters (Must Match):

• Capacitance value: 330 pF
• Voltage rating: 50 V minimum
• Tolerance: ±5% or tighter
• Dielectric material: Mica

Mechanical Parameters (Must Match):

• Mounting type: Through Hole
• Package configuration: Radial
• Lead spacing: 0.118" (3.00mm)
• Physical dimensions compatible with 0.272" L x 0.181" W footprint

Environmental Parameters (Must Match):

• Operating temperature range: -55°C ~ 125°C minimum

The CD5FY331JO3 meets all electrical and mechanical requirements for direct substitution. Both components share identical capacitance, voltage rating, tolerance, dielectric material, mounting configuration, lead spacing, and operating temperature range. Differences exist only in series designation, RoHS compliance status, and REACH regulatory classification.

Parameter Comparison

Engineering Selection Recommendations

CMR03F331JOYM (Primary Part): Select this part number when RoHS3 compliance is a mandatory design requirement. The CMR03F331JOYM carries active product status and meets RoHS3 compliance standards, making it suitable for applications subject to European Union Restriction of Hazardous Substances regulations. REACH Unaffected status indicates no additional substance restrictions apply.

CD5FY331JO3 (Substitute Part): The CD5FY331JO3 provides electrical and mechanical equivalence to the CMR03F331JOYM with identical performance characteristics across all critical parameters. This part is suitable for applications where RoHS3 compliance is not required. The RoHS non-compliant status and REACH Affected classification indicate this part is appropriate for legacy systems, non-regulated applications, or regions where such compliance is not mandated. Both parts maintain active product status and are manufactured by the same supplier.

Selection between these parts depends solely on regulatory compliance requirements for the end application. No performance differences exist in capacitance, voltage rating, tolerance, temperature stability, or physical form factor.

Frequently Asked Questions (FAQ)

Q: Can CD5FY331JO3 be used as a direct replacement for CMR03F331JOYM in all applications?

A: The CD5FY331JO3 provides direct electrical and mechanical substitution. Both parts have identical capacitance (330 pF), voltage rating (50 V), tolerance (±5%), dielectric material (mica), mounting type (through hole), package configuration (radial), lead spacing (0.118"), and operating temperature range (-55°C ~ 125°C). The only differences are regulatory compliance classifications. Use CD5FY331JO3 only in applications where RoHS3 compliance is not required.

Q: What is the difference between CMR and CD5 series designations?

A: CMR and CD5 are different product series from Cornell Dubilier Electronics. Both series contain mica capacitors with identical electrical specifications for this 330 pF, 50 V application. The series designation reflects different manufacturing lines or product generations but does not affect electrical performance or physical compatibility.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both CMR03F331JOYM and CD5FY331JO3 share identical physical dimensions: 0.272" L x 0.181" W (6.90mm x 4.60mm) with a maximum seated height of 0.240" (6.10mm). Lead spacing is identical at 0.118" (3.00mm). These parts are mechanically interchangeable on PCB layouts designed for either part number.

Q: What does RoHS3 compliance mean for this capacitor?

A: RoHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the CMR03F331JOYM meets European Union regulations limiting the use of specific hazardous materials in electrical and electronic equipment. The CMR03F331JOYM is RoHS3 compliant; the CD5FY331JO3 is not. Select the RoHS3 compliant part for applications subject to EU regulations or customer specifications requiring such compliance.

Q: Can I use CMR03F331JOYM in place of CD5FY331JO3?

A: Yes. The CMR03F331JOYM can replace CD5FY331JO3 in any application. Since CMR03F331JOYM is RoHS3 compliant and CD5FY331JO3 is not, using the CMR part provides additional regulatory compliance without any performance trade-offs. Both parts are electrically and mechanically identical.

Q: What is the Moisture Sensitivity Level (MSL) rating?

A: Both parts carry MSL 1 (Unlimited), indicating these mica capacitors have unlimited shelf life and require no special moisture control during storage or handling. This classification applies to mica dielectric capacitors, which are inherently resistant to moisture absorption.

Q: Are there any temperature performance differences between these parts?

A: No. Both CMR03F331JOYM and CD5FY331JO3 operate across the identical temperature range of -55°C to 125°C. Mica dielectric material provides stable capacitance across this full temperature envelope for both part numbers.