CMR03C7R0DOCP Equivalent & Substitute Parts

Part Overview

The CMR03C7R0DOCP is a 7 pF mica capacitor rated for 300 V operation in a radial through-hole package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as Active product status and is designed for general-purpose applications requiring stable capacitance values with tight tolerance specifications. Mica capacitors in this capacitance range are used in RF circuits, timing networks, and precision filtering applications where the dielectric stability of mica is essential. Identifying equivalent substitute parts becomes necessary when managing inventory constraints, addressing supply chain disruptions, or consolidating component procurement across multiple product lines while maintaining identical electrical and mechanical performance.

Substiute Parts

CMR03C7R0DOCP

Cornell Dubilier Electronics (CDE)In Stock: 911CMR03C7R0DOCP Datasheet

Current PartRFQ

CD5CC070DO3F

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CMR03C7R0DOCP are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic requires that alternative components match the following specifications without deviation:

• Capacitance Value: 7 pF (exact match required)
• Capacitance Tolerance: ±0.5 pF (exact match required)
• Rated Voltage: 300 V (minimum requirement; higher ratings are acceptable)
• Dielectric Material: Mica (required for performance characteristics)
• Operating Temperature Range: -55°C to 125°C (minimum requirement; extended ranges are acceptable)
• Mounting Type: Through Hole (required for PCB assembly compatibility)
• Package Configuration: Radial (required for lead geometry and board layout compatibility)
• Lead Spacing: 0.118 inches / 3.00 mm (exact match required for footprint compatibility)
• Compliance Standards: ROHS3 Compliant, REACH Unaffected (required for regulatory alignment)

Parts meeting all these criteria are classified as direct parametric equivalents and may be used interchangeably in circuit applications without circuit redesign or performance degradation.

Parameter Comparison

Engineering Selection Recommendations

The CD5CC070DO3F is a direct parametric equivalent to the CMR03C7R0DOCP and qualifies for interchangeable use in all applications where the CMR03C7R0DOCP is specified. Both components are manufactured by Cornell Dubilier Electronics and share identical electrical characteristics, mechanical dimensions, and regulatory compliance certifications.

Selection Basis:

• Both parts maintain Active product status, ensuring continued availability and manufacturing support
• Both parts achieve ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for commercial and industrial applications
• Identical capacitance (7 pF), tolerance (±0.5 pF), and voltage rating (300 V) ensure circuit performance equivalence
• Matching operating temperature range (-55°C to 125°C) and MSL rating (1 - Unlimited) confirm environmental and storage compatibility
• Identical through-hole radial package configuration and lead spacing (0.118 inches / 3.00 mm) guarantee PCB footprint compatibility without layout modification

Component selection between these two equivalents may be based on inventory availability, procurement lead time, or cost considerations without technical performance trade-offs.

Frequently Asked Questions (FAQ)

Q: Can the CD5CC070DO3F be used as a direct replacement for the CMR03C7R0DOCP in existing circuit designs?

A: Yes. The CD5CC070DO3F is a direct parametric equivalent with identical capacitance, tolerance, voltage rating, dielectric material, operating temperature range, and physical dimensions. No circuit redesign or PCB layout modification is required.

Q: Are there any differences in the radial package configuration between these two parts?

A: No. Both components feature identical radial through-hole packages with 0.118 inches (3.00 mm) lead spacing, 0.272 inches L x 0.110 inches W body dimensions, and 0.189 inches maximum seated height. They are mechanically interchangeable.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the CMR03C7R0DOCP and CD5CC070DO3F are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements for commercial and industrial applications.

Q: What is the significance of the ±0.5 pF tolerance specification?

A: The ±0.5 pF tolerance indicates the maximum allowable deviation from the nominal 7 pF capacitance value. Both parts maintain this identical tolerance, ensuring equivalent circuit performance in precision applications such as RF tuning networks and timing circuits where capacitance stability is critical.

Q: Are there any differences in operating temperature performance between these components?

A: No. Both parts operate across the identical temperature range of -55°C to 125°C, ensuring equivalent performance in applications subject to thermal cycling or extreme environmental conditions.

Q: What does MSL rating 1 (Unlimited) indicate for these capacitors?

A: MSL 1 (Unlimited) indicates that these components have unlimited shelf life and do not require special moisture control during storage or handling. Both parts are equally suitable for standard warehouse storage and distribution without desiccant packaging requirements.

Q: Can these parts be used interchangeably in high-frequency RF applications?

A: Yes. Both components use mica dielectric material, which provides stable capacitance across frequency ranges typical of RF circuits. The identical electrical and physical specifications ensure equivalent performance in RF tuning, coupling, and filtering applications.