185103J400RHB-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The 185103J400RHB-F is a 10000 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 185 series. This radial through-hole component operates at 400V DC / 200V AC with polyester metallized dielectric construction. The part is currently Active in product status with 936 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design revisions call for different physical dimensions while maintaining electrical equivalence.

Substiute Parts

185103J400RHB-F

Cornell Dubilier Electronics (CDE)In Stock: 1036185103J400RHB-F Datasheet

Current PartRFQ

167103J400A-F

Cornell Dubilier Electronics (CDE)In Stock: 4302167103J400A-F Datasheet

SimilarRFQ

B32529C6103J

EPCOS - TDK ElectronicsIn Stock: 6476B32529C6103J Datasheet

DirectRFQ

B32529C6103J289

EPCOS - TDK ElectronicsIn Stock: 3474B32529C6103J289 Datasheet

DirectRFQ

B32521C6103J

EPCOS - TDK ElectronicsIn Stock: 7426B32521C6103J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 185103J400RHB-F is determined by the following core electrical and mechanical parameters:

Electrical Equivalence Requirements:

• Capacitance: 10000 pF (exact match required)
• Tolerance: ±5% (exact match required)
• Voltage Rating - DC: 400V (minimum requirement; higher ratings acceptable)
• Voltage Rating - AC: 200V (minimum requirement; higher ratings acceptable)
• Dielectric Material: Polyester-based metallized construction
• Operating Temperature: -55°C ~ 125°C (minimum range requirement)

Mechanical Compatibility Requirements:

• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial (exact match required)
• Termination: PC Pins (exact match required)

Compliance Requirements:

• RoHS3 Compliant status
• REACH Unaffected status

Substitute parts are grouped into two categories:

Category 1 - Direct Electrical & Mechanical Equivalents (Same Footprint): Parts with identical lead spacing (0.197" / 5.00mm) and compatible physical dimensions that allow direct board-level substitution without PCB layout modification.

Category 2 - Electrical Equivalents with Modified Footprint: Parts with different lead spacing or body dimensions that maintain full electrical equivalence but require PCB layout verification before implementation.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection - Direct Footprint Compatibility:

The B32529C6103J and B32529C6103J289 (EPCOS - TDK Electronics) are direct electrical and mechanical equivalents with identical lead spacing (0.197" / 5.00mm) to the 185103J400RHB-F. Both parts maintain full electrical specification compliance and support the same through-hole radial mounting configuration. The B32529C6103J289 is available in Cut Tape (CT) packaging, while B32529C6103J is supplied in Bulk format.

Limitation: Both EPCOS parts carry "Not For New Designs" product status, indicating these are legacy components. For new design implementations, the 185103J400RHB-F (Active status) or 167103J400A-F (Active status) are preferred selections.

Secondary Selection - Same Manufacturer, Modified Footprint:

The 167103J400A-F (Cornell Dubilier Electronics, 185 series equivalent) maintains Active product status and identical electrical specifications. This part features a larger body (0.413" L x 0.138" W) with increased lead spacing (0.295" / 7.50mm). PCB layout verification is required before substitution due to different footprint dimensions.

Tertiary Selection - Alternative Footprint:

The B32521C6103J (EPCOS - TDK Electronics) provides electrical equivalence with significantly different physical dimensions (0.512" L x 0.157" W) and lead spacing (0.394" / 10.00mm). This part is suitable only when PCB layout accommodates the larger footprint. Product status is "Not For New Designs."

Compliance Verification:

All substitute parts maintain ROHS3 Compliance and REACH Unaffected status, matching the primary part's regulatory standing.

Frequently Asked Questions (FAQ)

Q: Can B32529C6103J be used as a direct replacement for 185103J400RHB-F on an existing PCB?

A: Yes. Both parts share identical lead spacing (0.197" / 5.00mm), body length (0.283" / 7.20mm), and electrical specifications. Direct board-level substitution is possible without PCB modification. However, the B32529C6103J carries "Not For New Designs" status, making it suitable only for legacy system maintenance or repair applications.

Q: What is the difference between B32529C6103J and B32529C6103J289?

A: These parts are electrically and mechanically identical. The primary difference is packaging format: B32529C6103J is supplied in Bulk packaging, while B32529C6103J289 is supplied in Cut Tape (CT) format. Selection depends on manufacturing process requirements and assembly equipment compatibility.

Q: Can 167103J400A-F replace 185103J400RHB-F without PCB redesign?

A: No. The 167103J400A-F has different physical dimensions (0.413" L vs. 0.283" L) and lead spacing (0.295" vs. 0.197"). PCB layout verification and potential modification are required. This part is suitable for new designs or redesign projects where footprint accommodation is possible.

Q: Why do EPCOS parts show "Not For New Designs" status?

A: "Not For New Designs" indicates these are legacy or end-of-life components. Manufacturers apply this status when parts remain available but are not recommended for new product development. Existing inventory may be used for maintenance, repair, or legacy system support. For new designs, select parts with "Active" product status.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (185103J400RHB-F, 167103J400A-F, B32529C6103J, B32529C6103J289, B32521C6103J) maintain ROHS3 Compliance and REACH Unaffected status.

Q: What determines whether a part can substitute for 185103J400RHB-F?

A: Substitution eligibility requires exact match on: capacitance (10000 pF), tolerance (±5%), voltage rating (400V DC / 200V AC minimum), dielectric type (polyester metallized), operating temperature range (-55°C ~ 125°C), mounting type (through hole), package type (radial), and termination (PC pins). Physical dimensions and lead spacing may vary if PCB layout permits.

Q: Which substitute part has the highest inventory availability?

A: B32521C6103J has the highest inventory with 7388 units in stock, followed by B32529C6103J with 6369 units. However, inventory levels are subject to change and should be verified at time of procurement.

Q: Can B32521C6103J be used in space-constrained PCB layouts?

A: No. B32521C6103J has the largest physical dimensions (0.512" L x 0.157" W) and lead spacing (0.394" / 10.00mm) among all listed substitutes. This part is suitable only for applications where PCB layout accommodates larger component footprints.