Equivalent & Substitute Parts for 185682K400RCA-F

Part Overview

The 185682K400RCA-F is a 6800 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE), designed for general-purpose applications requiring 400V DC voltage rating with polyester metallized dielectric construction. This radial through-hole component operates across a temperature range of -55°C to 125°C and maintains ±10% capacitance tolerance. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent substitute parts are identified based on matching electrical specifications, mechanical compatibility, and operational parameters that ensure functional interchangeability in circuit applications.

Substiute Parts

185682K400RCA-F

Cornell Dubilier Electronics (CDE)In Stock: 772185682K400RCA-F Datasheet

Current PartRFQ

B32529C6682J000

EPCOS - TDK ElectronicsIn Stock: 97709B32529C6682J000 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 185682K400RCA-F is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Capacitance value: 6800 pF (exact match required)
• DC voltage rating: 400V minimum (equal or higher acceptable)
• AC voltage rating: 200V minimum (equal or higher acceptable)
• Dielectric material: Polyester, Metallized (same family)
• Operating temperature range: -55°C to 125°C (must encompass or match)

Mechanical Compatibility Requirements:

• Mounting type: Through Hole (exact match required)
• Package type: Radial (exact match required)
• Lead spacing: 0.197" (5.00mm) (exact match required)
• Termination: PC Pins (exact match required)

Regulatory and Compliance Requirements:

• RoHS3 Compliance (required for equivalent substitution)
• REACH Unaffected status (required for equivalent substitution)

The B32529C6682J000 qualifies as an equivalent substitute based on matching all critical electrical and mechanical parameters while maintaining superior tolerance specification (±5% versus ±10%) and equivalent regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: B32529C6682J000

The B32529C6682J000 from EPCOS - TDK Electronics is a direct electrical and mechanical equivalent to the 185682K400RCA-F. Both components share identical capacitance (6800 pF), voltage ratings (400V DC / 200V AC), operating temperature range (-55°C to 125°C), and mechanical specifications including lead spacing (5.00mm) and radial through-hole mounting configuration.

The substitute part offers the following advantages:

• Tighter capacitance tolerance (±5% versus ±10%), providing improved circuit performance consistency
• Compact physical dimensions (0.098" width and 0.256" height versus 0.138" and 0.295"), enabling space-optimized PCB layouts
• AEC-Q200 automotive qualification rating, extending application scope to automotive environments
• Equivalent regulatory compliance (ROHS3 and REACH Unaffected)
• Active production status with substantial inventory availability (97,664 pieces)

Both components maintain identical electrical performance in circuit applications. Selection between the two should be based on PCB layout constraints, tolerance requirements, and application-specific certifications. The substitute part's compact form factor and superior tolerance specification make it suitable for applications where space optimization or tighter capacitance control is beneficial.

Frequently Asked Questions (FAQ)

Q: Can B32529C6682J000 be used as a direct replacement for 185682K400RCA-F in existing circuit designs?

A: Yes. Both components share identical electrical specifications (6800 pF, 400V DC, 200V AC, -55°C to 125°C operating range) and mechanical compatibility (5.00mm lead spacing, radial through-hole mounting). The substitute part's compact dimensions (0.098" width, 0.256" height) are smaller than the original part (0.138" width, 0.295" height), which may require PCB layout verification to confirm adequate clearance around the component footprint.

Q: What is the difference in capacitance tolerance between these parts?

A: The 185682K400RCA-F maintains ±10% tolerance, while the B32529C6682J000 provides ±5% tolerance. The tighter tolerance of the substitute part results in more precise capacitance values within the specified range, which may improve circuit performance in applications sensitive to capacitance variation.

Q: Are both parts suitable for automotive applications?

A: The B32529C6682J000 carries AEC-Q200 automotive qualification, making it suitable for automotive environments. The 185682K400RCA-F is specified for general-purpose applications without automotive certification. If automotive qualification is required, the substitute part is the appropriate selection.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the 185682K400RCA-F and B32529C6682J000 are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory standards for electronic components.

Q: What packaging formats are available for these parts?

A: The 185682K400RCA-F is supplied in Tape & Reel (TR) packaging. The B32529C6682J000 is supplied in Bulk packaging. Packaging format selection should align with manufacturing assembly requirements and component handling procedures.

Q: Are there any physical installation considerations when substituting these parts?

A: The B32529C6682J000 has a smaller physical footprint (0.098" width and 0.256" height) compared to the 185682K400RCA-F (0.138" width and 0.295" height). While lead spacing remains identical at 5.00mm, PCB layout verification is recommended to confirm adequate clearance for the substitute part's narrower and shorter body profile, particularly in densely populated circuit board designs.