CMR03C8R0DOCP Equivalent & Substitute Parts

Part Overview

The CMR03C8R0DOCP is an 8 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 value range are utilized in RF circuits, timing networks, and precision filtering applications where the dielectric stability and low loss characteristics of mica are essential. Identification of equivalent substitute parts becomes necessary when the primary part number reaches end-of-life status, experiences supply constraints, or when design flexibility across compatible product lines is required while maintaining identical electrical and mechanical performance.

Substiute Parts

CMR03C8R0DOCP

Cornell Dubilier Electronics (CDE)In Stock: 963CMR03C8R0DOCP Datasheet

Current PartRFQ

CD5CC080DO3F

Cornell Dubilier Electronics (CDE)In Stock: 1106CD5CC080DO3F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CMR03C8R0DOCP is permissible with parts that maintain identical electrical specifications and mechanical compatibility. The critical parameters governing substitution are:

Electrical Parameters:

• Capacitance value: 8 pF (exact match required)
• Tolerance: ±0.5 pF (exact match required)
• Voltage rating: 300 V (minimum requirement; higher ratings are acceptable)
• Dielectric material: Mica (required for performance characteristics)

Mechanical Parameters:

• Mounting type: Through Hole (required for PCB assembly compatibility)
• Package configuration: Radial (required for lead orientation and footprint)
• Lead spacing: 0.118 inches / 3.00 mm (required for PCB hole pattern alignment)
• Physical dimensions: 0.272" L × 0.110" W (6.90 mm × 2.80 mm) with maximum seated height of 0.189" (4.80 mm)

Compliance Parameters:

• RoHS3 compliance status (required for regulatory alignment)
• Moisture Sensitivity Level 1 (required for storage and handling compatibility)

The substitute part CD5CC080DO3F from the CD5 series meets all specified electrical, mechanical, and compliance requirements and is therefore classified as a direct parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The CD5CC080DO3F is a direct parametric equivalent to the CMR03C8R0DOCP and is suitable for substitution in applications requiring an 8 pF mica capacitor with 300 V rating and ±0.5 pF tolerance. Both parts are manufactured by Cornell Dubilier Electronics and maintain identical electrical performance, mechanical compatibility, and regulatory compliance status.

Selection Basis:

Both the primary part and substitute part carry Active product status, indicating ongoing manufacturing support and availability. Both components are ROHS3 compliant and REACH unaffected, satisfying current regulatory requirements for electronic component procurement. The identical operating temperature range (-55°C to 125°C) and Moisture Sensitivity Level 1 classification ensure compatibility in equivalent storage, handling, and deployment environments.

The mechanical footprint is identical across both parts, including lead spacing of 0.118 inches (3.00 mm), physical dimensions of 0.272" L × 0.110" W (6.90 mm × 2.80 mm), and maximum seated height of 0.189" (4.80 mm). This ensures direct PCB compatibility without layout modifications or rework.

The electrical specifications are identical: 8 pF capacitance with ±0.5 pF tolerance, 300 V rated voltage, and mica dielectric material. These parameters are critical for RF filtering, timing, and precision coupling applications where capacitance stability and low loss are required.

Frequently Asked Questions (FAQ)

Q: Can the CD5CC080DO3F be used as a direct replacement for the CMR03C8R0DOCP without PCB modifications?

A: Yes. Both parts share identical lead spacing (0.118 inches / 3.00 mm), physical dimensions (0.272" L × 0.110" W), and radial package configuration. No PCB layout changes are required for substitution.

Q: Are the electrical characteristics identical between these two parts?

A: Yes. Both parts have 8 pF capacitance with ±0.5 pF tolerance, 300 V rated voltage, and mica dielectric material. Operating temperature range (-55°C to 125°C) and frequency characteristics are identical.

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

A: CMR and CD5 are different product series within the Cornell Dubilier Electronics mica capacitor portfolio. The CD5CC080DO3F belongs to the CD5 series while the CMR03C8R0DOCP belongs to the CMR series. Despite different series classifications, these parts are parametric equivalents with identical specifications.

Q: Are both parts RoHS compliant?

A: Yes. Both the CMR03C8R0DOCP and CD5CC080DO3F are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage practices are sufficient; no special desiccant packaging or baking procedures are required.

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

A: Yes. Mica capacitors are suitable for RF applications requiring low loss and stable capacitance. The 8 pF value with ±0.5 pF tolerance is appropriate for RF filtering, coupling, and tuning circuits operating at 300 V or below.

Q: Is there a difference in availability between these two part numbers?

A: Both parts are listed as Active with current inventory. The CD5CC080DO3F has 1092 pieces in stock while the CMR03C8R0DOCP has 944 pieces in stock. Availability may vary based on current procurement cycles and supplier inventory levels.

Q: What applications are these capacitors designed for?

A: These 8 pF mica capacitors are general-purpose components suitable for RF circuits, timing networks, precision filtering, coupling applications, and any circuit requiring stable, low-loss capacitance at 300 V or below.