FCA1206C684M Film Capacitor Equivalent & Substitute Parts

Part Overview

The FCA1206C684M is a 0.68 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the FCA series. This surface mount component features acrylic metallized dielectric construction in a 1206 (3216 Metric) package with a 16V DC voltage rating and ±20% capacitance tolerance. The part is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing procurement and design continuity. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement capability in existing circuit designs.

Substiute Parts

FCA1206C684M

Cornell Dubilier Electronics (CDE)In Stock: 1047FCA1206C684M Datasheet

Current PartRFQ

FCA1206C684M-H3

Cornell Dubilier Electronics (CDE)In Stock: 9479FCA1206C684M-H3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FCA1206C684M is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters (Non-negotiable):

• Capacitance value: 0.68 µF
• Capacitance tolerance: ±20%
• DC voltage rating: 16V minimum
• AC voltage rating: 12V minimum
• Dielectric material: Acrylic, Metallized

Mechanical Parameters (Non-negotiable):

• Package type: 1206 (3216 Metric)
• Physical dimensions: 0.126" L x 0.063" W (3.20mm x 1.60mm)
• Maximum seated height: 0.063" (1.60mm)
• Mounting type: Surface Mount
• Termination: Solder Pads

Performance & Compliance Parameters (Required):

• Operating temperature range: -40°C ~ 85°C
• Low ESR characteristic
• RoHS3 Compliance
• MSL rating: 4 (72 Hours)

The FCA1206C684M-H3 qualifies as a direct substitute based on complete parameter alignment across all categories.

Parameter Comparison

Engineering Selection Recommendations

The FCA1206C684M-H3 is the direct equivalent substitute for the obsolete FCA1206C684M. Selection of this substitute is based on the following engineering criteria:

Product Status Alignment: The FCA1206C684M-H3 maintains active product status with Cornell Dubilier Electronics, ensuring ongoing availability and manufacturing continuity. The obsolete status of the original part necessitates transition to this active equivalent.

Electrical Specification Equivalence: All electrical parameters are identical between the main part and substitute, including capacitance value, tolerance, voltage ratings, and dielectric composition. This ensures functional interchangeability in circuit applications without performance degradation.

Mechanical Compatibility: Physical dimensions, package type, and mounting characteristics are identical, enabling direct PCB footprint compatibility and assembly process compatibility without design modification.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying current regulatory requirements for electronic component procurement and use.

Packaging Consideration: The substitute is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly operations. If bulk packaging is required, this should be addressed through supplier sourcing options.

Frequently Asked Questions (FAQ)

Q: Can FCA1206C684M-H3 be used as a direct replacement for FCA1206C684M?

A: Yes. The FCA1206C684M-H3 is a direct equivalent substitute. All electrical specifications, mechanical dimensions, and performance characteristics are identical. The only difference is product status (active vs. obsolete) and packaging format (Tape & Reel vs. bulk).

Q: What is the difference between the main part and the substitute?

A: The FCA1206C684M is obsolete, while the FCA1206C684M-H3 is active. The substitute is supplied in Tape & Reel packaging format, which is standard for automated surface mount assembly. All technical specifications remain unchanged.

Q: Are there any PCB layout modifications required when switching to FCA1206C684M-H3?

A: No. The 1206 (3216 Metric) package dimensions and solder pad configuration are identical. Existing PCB designs require no modification for this substitution.

Q: What is the MSL rating and why is it important?

A: The MSL rating is 4 (72 Hours), indicating the component can be exposed to ambient conditions of 30°C / 85% RH for up to 72 hours before soldering. Proper storage in dry conditions and adherence to moisture handling procedures is required during assembly.

Q: Are both parts RoHS compliant?

A: Yes. Both FCA1206C684M and FCA1206C684M-H3 are ROHS3 compliant and REACH Unaffected, meeting current regulatory requirements for electronic component use in regulated markets.

Q: Can the substitute be used in both AC and DC applications?

A: Yes. The FCA1206C684M-H3 is rated for 16V DC and 12V AC operation, matching the specifications of the original part. Application selection should be based on circuit requirements within these voltage limits.

Q: What is the operating temperature range?

A: Both parts operate across -40°C to 85°C, providing performance across industrial and commercial temperature environments.

Q: Is the Low ESR characteristic maintained in the substitute?

A: Yes. The FCA1206C684M-H3 maintains the Low ESR feature of the original part, ensuring equivalent electrical performance in applications requiring low equivalent series resistance.