BFC230348394 Equivalent & Substitute Parts

Part Overview

The BFC230348394 is a 0.39 µF film capacitor rated for 250V DC operation with polyester metallized dielectric construction. Manufactured by Vishay Beyschlag/Draloric/BC Components as part of the MKT303 series, this radial through-hole component is designed for general-purpose applications. The part is currently obsolete, making identification of compatible substitute components essential for ongoing system support and procurement.

Substiute Parts

BFC230348394

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1025BFC230348394 Datasheet

Current PartRFQ

BFC237348394

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 860BFC237348394 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BFC230348394 is determined by the following critical parameters:

• Capacitance Value: Must be 0.39 µF (exact match required)
• Voltage Rating - DC: Must be rated for minimum 250V DC
• Dielectric Type: Polyester, metallized construction
• Mounting Configuration: Through-hole radial package
• Temperature Range: Operating range of -55°C to 105°C
• Compliance: ROHS3 compliance maintained

The substitute part BFC237348394 meets all substitution criteria while offering improved tolerance specification (±5% versus ±10%) and higher AC voltage rating (160V versus 63V). Both components share identical capacitance, DC voltage rating, dielectric material, mounting type, temperature range, and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

The BFC237348394 is a direct functional substitute for the obsolete BFC230348394. Both components are manufactured by Vishay and maintain ROHS3 compliance. The substitute offers superior tolerance specification (±5% versus ±10%) and extended AC voltage rating capability (160V versus 63V), providing enhanced performance margins in applications requiring AC component stress ratings.

Physical dimensions differ between the two parts: the substitute (MKT373 series) is larger at 17.50mm × 6.00mm with 18.50mm seated height compared to the main part (MKT303 series) at 12.50mm × 4.90mm with 9.60mm seated height. Lead spacing increases from 10.00mm to 15.00mm. These dimensional changes require PCB layout verification prior to implementation.

The substitute part is currently in active production status with confirmed inventory availability, eliminating supply chain risk associated with the obsolete main part.

Frequently Asked Questions (FAQ)

Q: Can BFC237348394 be used as a direct replacement for BFC230348394?

A: Yes, provided PCB layout accommodates the larger physical dimensions and increased lead spacing (15.00mm versus 10.00mm). The electrical specifications are compatible for applications requiring 0.39 µF at 250V DC.

Q: What are the key differences between these parts?

A: The substitute offers tighter tolerance (±5% versus ±10%), higher AC voltage rating (160V versus 63V), and larger physical dimensions. DC voltage rating and capacitance value remain identical.

Q: Does the dimensional difference affect circuit performance?

A: Dimensional differences do not affect electrical performance but require PCB layout modification. Lead spacing and component height must be verified against board design constraints.

Q: Are both parts RoHS compliant?

A: Yes, both BFC230348394 and BFC237348394 are ROHS3 compliant.

Q: What is the lead spacing for each part?

A: BFC230348394 has 10.00mm lead spacing; BFC237348394 has 15.00mm lead spacing.

Q: Is the substitute part currently available?

A: Yes, BFC237348394 is in active production status with 796 pieces in current inventory.