CMR03C7R0DOCM Equivalent & Substitute Parts

Part Overview

The CMR03C7R0DOCM is a 7 pF mica capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 300 V operation in radial through-hole configuration. This component is classified as Active product status and is suitable for general-purpose applications requiring stable capacitance values across wide temperature ranges. Mica capacitors of this specification are used in RF circuits, timing networks, and precision filtering applications where low capacitance tolerance and temperature stability are critical. Identifying equivalent substitute parts ensures design continuity when primary inventory becomes unavailable or when procurement optimization is required.

Substiute Parts

CMR03C7R0DOCM

Cornell Dubilier Electronics (CDE)In Stock: 885CMR03C7R0DOCM Datasheet

Current PartRFQ

CD5CC070DO3F

Cornell Dubilier Electronics (CDE)In Stock: 1284CD5CC070DO3F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMR03C7R0DOCM is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value: 7 pF (exact match required)
• Capacitance tolerance: ±0.5 pF (exact match required)
• Voltage rating: 300 V (minimum requirement; higher ratings acceptable)
• Dielectric material: Mica (required for performance characteristics)

Mechanical Parameters:

• Mounting type: Through Hole (required for PCB compatibility)
• Package configuration: Radial (required for lead orientation and spacing)
• Lead spacing: 0.118" / 3.00 mm (required for footprint compatibility)

Compliance Parameters:

• RoHS3 compliance status (required for regulatory alignment)
• Operating temperature range: -55°C to 125°C (minimum requirement)

The substitute part CD5CC070DO3F meets all specified criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The CD5CC070DO3F is a direct parametric equivalent to the CMR03C7R0DOCM and is suitable for one-to-one substitution in applications requiring a 7 pF mica capacitor rated at 300 V with radial through-hole configuration.

Selection Basis:

Both components are manufactured by Cornell Dubilier Electronics and share identical electrical specifications, mechanical dimensions, and compliance certifications. The CMR series and CD5 series represent different product lines within CDE's mica capacitor portfolio, but the CD5CC070DO3F maintains full compatibility with the CMR03C7R0DOCM across all critical parameters.

Both parts are Active status products, ensuring continued availability and manufacturing support. ROHS3 compliance and REACH unaffected status confirm regulatory alignment for current and future applications.

The MSL rating of 1 (Unlimited) for both components indicates no moisture sensitivity restrictions during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can CD5CC070DO3F be used as a direct replacement for CMR03C7R0DOCM?

A: Yes. The CD5CC070DO3F is a parametric equivalent with identical capacitance (7 pF), tolerance (±0.5 pF), voltage rating (300 V), dielectric material (Mica), mounting type (Through Hole), package configuration (Radial), lead spacing (3.00 mm), and physical dimensions. Direct substitution is supported without circuit modification.

Q: Are there any differences in performance characteristics between these two parts?

A: No. Both components share identical electrical and thermal specifications, including operating temperature range (-55°C to 125°C), RoHS3 compliance status, and REACH classification. Performance in circuit applications is equivalent.

Q: What is the significance of the different series designations (CMR vs. CD5)?

A: The series designation indicates different product lines within Cornell Dubilier Electronics' mica capacitor catalog. CMR and CD5 represent distinct manufacturing lines, but the CD5CC070DO3F meets all electrical and mechanical requirements for substitution in applications designed for the CMR03C7R0DOCM.

Q: Are the physical dimensions identical?

A: Yes. Both components have identical dimensions: 0.272" L x 0.110" W (6.90 mm x 2.80 mm) body size, 0.189" (4.80 mm) maximum seated height, and 0.118" (3.00 mm) lead spacing. PCB footprints are interchangeable.

Q: What is the MSL rating, and does it affect handling?

A: Both components have MSL rating 1 (Unlimited), indicating no moisture sensitivity. Standard handling procedures apply without special moisture control requirements during storage or assembly.

Q: Are both parts currently available?

A: Yes. Both CMR03C7R0DOCM and CD5CC070DO3F are classified as Active products, confirming current manufacturing and availability status.