CM04FD181JO3 Equivalent & Substitute Parts

Part Overview

The CM04FD181JO3 is a 180 pF mica capacitor rated for 500 V operation in a radial through-hole package, manufactured by Cornell Dubilier Electronics (CDE). This component is classified as a general-purpose mica capacitor suitable for applications requiring high voltage stability and low dielectric loss. The part maintains Active product status with 833 units currently in stock.

Equivalent substitute parts are identified when they satisfy identical electrical specifications (capacitance, voltage rating, tolerance, and dielectric material) and mechanical compatibility (mounting type, package configuration, and lead spacing). The CD10FD181JO3F represents a parametrically equivalent alternative from the same manufacturer.

Substiute Parts

CM04FD181JO3

Cornell Dubilier Electronics (CDE)In Stock: 940CM04FD181JO3 Datasheet

Current PartRFQ

CD10FD181JO3F

Cornell Dubilier Electronics (CDE)In Stock: 949CD10FD181JO3F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CM04FD181JO3 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Capacitance: 180 pF
• Tolerance: ±5%
• Voltage Rating: 500 V
• Dielectric Material: Mica

Mechanical Parameters (Must Match Exactly):

• Mounting Type: Through Hole
• Package Configuration: Radial
• Lead Spacing: 0.142" (3.60 mm)
• Physical Dimensions: 0.390" L x 0.209" W (9.90 mm x 5.30 mm)
• Maximum Seated Height: 0.370" (9.40 mm)

Operational Parameters (Must Match Exactly):

• Operating Temperature Range: -55°C to 125°C

The CD10FD181JO3F satisfies all substitution criteria. Both parts are manufactured by Cornell Dubilier Electronics and share identical electrical and mechanical specifications. The primary distinction lies in product compliance certifications and series designation (CM04 versus CD10).

Parameter Comparison

Engineering Selection Recommendations

CM04FD181JO3 Selection Criteria:

• Applications without RoHS or REACH compliance requirements
• Legacy system designs or non-regulated environments
• Existing inventory management for established product lines

CD10FD181JO3F Selection Criteria:

• Applications requiring ROHS3 compliance certification
• Designs subject to REACH regulatory requirements
• New product development or systems with environmental compliance mandates
• Equivalent electrical and mechanical performance with enhanced regulatory status

Both parts deliver identical functional performance across all electrical and mechanical parameters. Selection between CM04FD181JO3 and CD10FD181JO3F is determined solely by compliance certification requirements and regulatory environment, not by technical performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can CM04FD181JO3 and CD10FD181JO3F be used interchangeably on the same PCB?

A: Yes. Both parts share identical electrical specifications (180 pF, 500 V, ±5% tolerance), dielectric material (mica), and mechanical dimensions (0.390" L x 0.209" W, 3.60 mm lead spacing, radial configuration). Direct substitution is electrically and mechanically compatible without circuit modification or PCB redesign.

Q: What is the difference between the CM04 and CD10 series designations?

A: The series designation reflects product line classification within Cornell Dubilier Electronics' portfolio. Both CM04 and CD10 series mica capacitors meet identical electrical and mechanical specifications for the 180 pF, 500 V rating. The primary distinction is regulatory compliance status: CD10 series includes ROHS3 compliance, while CM04 series does not.

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

A: No. Both parts operate identically across all provided electrical parameters: capacitance (180 pF), voltage rating (500 V), tolerance (±5%), operating temperature range (-55°C to 125°C), and dielectric characteristics (mica). Performance is functionally equivalent.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory requirements. For designs requiring ROHS3 or REACH compliance, specify CD10FD181JO3F. For applications without these compliance mandates, either part is acceptable. Consult design documentation and regulatory requirements for your specific application.

Q: Is the lead spacing identical between both parts?

A: Yes. Both CM04FD181JO3 and CD10FD181JO3F feature 0.142" (3.60 mm) lead spacing and radial through-hole mounting. PCB footprints are identical, enabling direct substitution without layout modification.

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

A: CM04FD181JO3 is classified as MSL 1 (Unlimited). CD10FD181JO3F lists MSL as Not Applicable. Both designations indicate minimal moisture sensitivity typical of mica dielectric capacitors, with no special storage or handling requirements.