F1778433M3ILB0 Film Capacitor Equivalent & Substitute Parts

Part Overview

The F1778433M3ILB0 is a 0.33 µF film capacitor manufactured by Vishay Beyschlag/Draloric/BC Components, designed for EMI and RFI suppression applications. This radial polypropylene metallized capacitor operates at 630V DC and maintains active product status with 956 units currently in stock. Alternative equivalent parts may be required due to inventory constraints, supply chain considerations, or specific application requirements where substitute components meet identical electrical and mechanical specifications.

Substiute Parts

F1778433M3ILB0

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1054F1778433M3ILB0 Datasheet

Current PartRFQ

BFC233620334

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 5059BFC233620334 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the F1778433M3ILB0 is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part BFC233620334 qualifies as a direct equivalent because it maintains identical specifications in the following key areas:

• Capacitance value: 0.33 µF
• Tolerance: ±20%
• Voltage ratings: 630V DC / 310V AC
• Dielectric composition: Polypropylene (PP), Metallized
• Operating temperature range: -55°C to 110°C
• Mounting configuration: Through Hole, Radial
• Physical envelope: 26.00mm × 6.00mm with 22.50mm lead spacing
• Termination style: PC Pins
• Application rating: X2
• Regulatory compliance: ROHS3 Compliant

Both components are manufactured by the same supplier and serve identical functions in EMI and RFI suppression circuits.

Parameter Comparison

Engineering Selection Recommendations

Both the F1778433M3ILB0 and BFC233620334 are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The BFC233620334 offers superior inventory availability with 5044 units in stock compared to 956 units of the primary part, making it a practical alternative for high-volume applications or extended lead-time mitigation. Both components carry identical electrical performance characteristics, mechanical dimensions, and application ratings, ensuring direct interchangeability in circuit designs. Selection between these parts should be based on procurement lead times, inventory requirements, and supply chain logistics rather than technical performance considerations.

Frequently Asked Questions (FAQ)

Q: Can BFC233620334 be used as a direct replacement for F1778433M3ILB0 in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including capacitance, voltage ratings, dielectric material, physical dimensions, and lead spacing. No circuit modifications are required.

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

A: No. Both components share identical electrical specifications, operating temperature ranges, and application ratings. Performance in EMI and RFI suppression circuits will be equivalent.

Q: What is the significance of the different series designations (F1778X2 vs. MKP336 2)?

A: Series designations reflect internal product line classifications within the manufacturer's portfolio. These do not affect electrical or mechanical compatibility. Both parts meet the same performance and compliance standards.

Q: Are both parts suitable for PCB assembly?

A: Yes. Both components feature Through Hole mounting with PC Pins termination and identical lead spacing of 22.50mm, compatible with standard PCB layouts designed for radial film capacitors.

Q: What is the difference in Moisture Sensitivity Level (MSL) between the parts?

A: The F1778433M3ILB0 lists MSL as Not Applicable, while BFC233620334 specifies MSL 1 (Unlimited). This indicates the BFC233620334 has no moisture sensitivity restrictions during storage and handling, providing additional flexibility in supply chain management.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both components are ROHS3 Compliant, REACH Unaffected, and carry identical ECCN (EAR99) and HTSUS (8532.25.0020) classifications.