CMR03C7R0DOCR Equivalent & Substitute Parts

Part Overview

The CMR03C7R0DOCR 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 with full inventory availability (1157 pcs in stock). Mica capacitors in this specification range are used in general-purpose applications requiring stable capacitance values and high voltage tolerance. Alternative equivalent parts may be required due to supply chain considerations, manufacturing discontinuation, or inventory constraints while maintaining identical electrical and mechanical performance.

Substiute Parts

CMR03C7R0DOCR

Cornell Dubilier Electronics (CDE)In Stock: 1200CMR03C7R0DOCR Datasheet

Current PartRFQ

CD5CC070DO3F

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMR03C7R0DOCR is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Capacitance value (7 pF), tolerance (±0.5 pF), and rated voltage (300 V) must be identical. The dielectric material must remain mica to preserve frequency stability and temperature characteristics across the operating range of -55°C to 125°C.

Mechanical Parameters: Mounting type (through hole), package configuration (radial), lead spacing (0.118" / 3.00 mm), and physical dimensions (0.272" L x 0.110" W / 6.90 mm x 2.80 mm) must match to ensure PCB compatibility and assembly process compatibility.

Compliance Parameters: RoHS3 compliance, MSL rating of 1, and REACH unaffected status must be maintained to satisfy regulatory and environmental requirements.

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The CD5CC070DO3F qualifies as a direct parametric equivalent to the CMR03C7R0DOCR. Both components are manufactured by Cornell Dubilier Electronics and share identical electrical specifications (7 pF, ±0.5 pF tolerance, 300 V rating), mechanical configuration (radial through-hole, 3.00 mm lead spacing), and physical dimensions. Both maintain Active product status with full regulatory compliance (ROHS3, REACH unaffected) and MSL rating of 1.

Selection between these two parts may be based on inventory availability, lead time, or supply chain logistics. The CMR03C7R0DOCR currently maintains 1157 pcs in stock, while the CD5CC070DO3F maintains 1192 pcs in stock. Both parts are suitable for direct substitution in applications requiring 7 pF mica capacitors at 300 V with through-hole radial mounting.

Frequently Asked Questions (FAQ)

Q: Can the CD5CC070DO3F be used as a direct replacement for the CMR03C7R0DOCR?

A: Yes. The CD5CC070DO3F is a parametric equivalent with identical capacitance (7 pF), tolerance (±0.5 pF), voltage rating (300 V), dielectric material (mica), operating temperature range (-55°C to 125°C), and mechanical configuration (radial through-hole with 3.00 mm lead spacing). Both components meet ROHS3 compliance and REACH requirements.

Q: Are the physical dimensions identical between these two parts?

A: Yes. Both the CMR03C7R0DOCR and CD5CC070DO3F share identical dimensions: 0.272" L x 0.110" W (6.90 mm x 2.80 mm) with a maximum seated height of 0.189" (4.80 mm). Lead spacing is 0.118" (3.00 mm) for both parts, ensuring identical PCB footprint compatibility.

Q: What is the tolerance specification for these capacitors?

A: Both parts carry a tolerance of ±0.5 pF, which applies to the 7 pF nominal capacitance value. This tolerance range is maintained across the full operating temperature range of -55°C to 125°C.

Q: Are these components suitable for high-voltage applications?

A: Both the CMR03C7R0DOCR and CD5CC070DO3F are rated for 300 V operation. Mica dielectric material provides stable performance at this voltage level with low dielectric loss.

Q: What is the moisture sensitivity level for these capacitors?

A: Both components carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. These parts do not require special moisture control during storage, handling, or assembly.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The identical electrical parameters, mechanical configuration, and physical dimensions allow direct substitution without design modification or PCB layout changes.