CM06FD681FO3 Equivalent & Substitute Parts

Part Overview

The CM06FD681FO3 is a 680 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 with ±1% tolerance and operates across the temperature range of -55°C to 125°C. The part maintains active product status and is available in bulk packaging with 1097 units in current inventory.

Mica capacitors in this specification are essential for applications requiring high stability, low loss, and reliable performance in RF, analog, and precision circuit designs. Identifying equivalent substitute parts becomes necessary when addressing supply chain constraints, lead time requirements, or when transitioning between product series within the same manufacturer's portfolio.

Substiute Parts

CM06FD681FO3

Cornell Dubilier Electronics (CDE)In Stock: 1179CM06FD681FO3 Datasheet

Current PartRFQ

CD19FD681FO3F

Cornell Dubilier Electronics (CDE)In Stock: 1426CD19FD681FO3F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CM06FD681FO3 is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Capacitance value must be 680 pF. Tolerance must be ±1%. Voltage rating must be 500 V or higher. Dielectric material must be mica.

Mechanical Parameters: Mounting type must be through-hole. Package configuration must be radial. Lead spacing must be 0.343" (8.70 mm). Physical dimensions must not exceed 0.650" L × 0.209" W (16.50 mm × 5.30 mm). Maximum seated height must not exceed 0.512" (13.00 mm).

Environmental Parameters: Operating temperature range must encompass -55°C to 125°C.

The CD19FD681FO3F qualifies as a parametric equivalent substitute because it matches all electrical, mechanical, and environmental specifications while originating from the same manufacturer's alternative product series.

Parameter Comparison

Engineering Selection Recommendations

Both the CM06FD681FO3 and CD19FD681FO3F are active products manufactured by Cornell Dubilier Electronics and meet identical electrical and mechanical specifications. Selection between these parts should be based on the following factors:

Compliance Considerations: The CD19FD681FO3F carries RoHS3 compliance certification, whereas the CM06FD681FO3 is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the CD19FD681FO3F is the appropriate selection.

Supply and Inventory: The CD19FD681FO3F currently maintains 1338 units in inventory compared to 1097 units for the CM06FD681FO3, providing greater availability for procurement.

Regulatory Status: The CD19FD681FO3F is REACH Unaffected, while the CM06FD681FO3 is REACH Affected. Applications requiring REACH compliance should utilize the CD19FD681FO3F.

Both parts share identical ECCN (EAR99) and HTSUS (8532.29.0020) classifications, ensuring equivalent export and tariff treatment.

Frequently Asked Questions (FAQ)

Q: Can the CD19FD681FO3F be used as a direct replacement for the CM06FD681FO3 in existing designs?

A: Yes. The CD19FD681FO3F is a direct parametric equivalent. All electrical specifications (capacitance, tolerance, voltage rating), mechanical dimensions (lead spacing, package size, height), and environmental operating parameters are identical. No circuit redesign or PCB layout modification is required.

Q: What is the difference between the CM06 and CD19 series designations?

A: CM06 and CD19 are different product series within Cornell Dubilier Electronics' mica capacitor portfolio. Both series contain components with identical electrical and mechanical specifications for this particular value. The series designation reflects different manufacturing lines or product generations within the manufacturer's catalog.

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

A: Yes. The CD19FD681FO3F is RoHS3 compliant and REACH Unaffected, while the CM06FD681FO3 is RoHS non-compliant and REACH Affected. For applications requiring environmental compliance certifications, the CD19FD681FO3F is the appropriate selection.

Q: Will the CD19FD681FO3F fit the same PCB footprint as the CM06FD681FO3?

A: Yes. Both parts have identical lead spacing (0.343" / 8.70 mm), physical dimensions (0.650" L × 0.209" W / 16.50 mm × 5.30 mm), and maximum seated height (0.512" / 13.00 mm). PCB footprints designed for the CM06FD681FO3 will accommodate the CD19FD681FO3F without modification.

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

A: The CM06FD681FO3 has an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. The CD19FD681FO3F lists MSL as Not Applicable, which is consistent with mica dielectric capacitors that do not absorb moisture.

Q: Are both parts suitable for high-frequency applications?

A: Both the CM06FD681FO3 and CD19FD681FO3F are specified as general-purpose mica capacitors. Mica dielectric construction provides low loss and stable performance characteristics suitable for RF and analog circuit applications. Specific frequency performance should be verified against application requirements and detailed frequency response data from the manufacturer.