BFC238340392 Equivalent & Substitute Parts

Part Overview

The BFC238340392 is a 3900 pF film capacitor manufactured by Vishay Beyschlag/Draloric/BC Components, rated for 1400V DC operation with polypropylene metallized dielectric. This radial through-hole component is designed for high pulse and DV/DT applications requiring reliable performance across industrial temperature ranges. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this product category.

Substiute Parts

BFC238340392

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1217BFC238340392 Datasheet

Current PartRFQ

B32672L8392J000

EPCOS - TDK ElectronicsIn Stock: 10869B32672L8392J000 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BFC238340392 is determined by strict adherence to the following criteria:

Mandatory Matching Parameters:

• Capacitance: 3900 pF (exact match required)
• Tolerance: ±5% (exact match required)
• Dielectric Material: Polypropylene (PP), Metallized (exact match required)
• Mounting Type: Through Hole, Radial (exact match required)
• Lead Spacing: 0.591" (15.00mm) (exact match required)
• Termination: PC Pins (exact match required)

Allowable Upgrade Parameters:

• Voltage Rating - DC: Equal to or greater than 1400V
• Operating Temperature Range: Equal to or greater than -55°C ~ 105°C
• RoHS Status: ROHS3 Compliant or equivalent environmental certification

The substitute part B32672L8392J000 meets all mandatory matching criteria and provides upgraded voltage rating (2000V DC) and extended upper operating temperature (+110°C), making it a valid electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

BFC238340392 (Vishay Beyschlag/Draloric/BC Components):

• Primary selection for applications requiring exact physical dimensions and MSL 1 rating
• Active product status with established supply chain
• ROHS3 compliant for regulated markets

B32672L8392J000 (EPCOS - TDK Electronics):

• Recommended for applications where higher voltage margin (2000V DC vs 1400V DC) provides design safety
• Extended upper operating temperature (+110°C vs +105°C) suitable for thermal-constrained environments
• Reduced seated height (10.50mm vs 11.00mm) may provide PCB layout advantages
• Active product status with high inventory availability
• ROHS3 compliant for regulated markets
• Minor dimensional increase in length (1.0mm) requires PCB footprint verification

Both parts maintain identical electrical performance at rated specifications and are suitable for direct substitution in through-hole radial mounting applications with 15.00mm lead spacing.

Frequently Asked Questions (FAQ)

Q: Can B32672L8392J000 be used as a direct replacement for BFC238340392?

A: Yes, B32672L8392J000 is electrically and mechanically compatible. Both parts share identical capacitance (3900 pF), tolerance (±5%), dielectric material (polypropylene metallized), mounting type (through-hole radial), lead spacing (15.00mm), and termination (PC pins). The substitute provides upgraded voltage rating and extended temperature range. PCB layout must accommodate the 1.0mm length increase (18.00mm vs 17.50mm).

Q: What are the key differences between these parts?

A: The primary differences are voltage rating (1400V vs 2000V DC), operating temperature upper limit (105°C vs 110°C), and physical dimensions. The substitute part offers higher voltage margin and thermal capability with slightly reduced seated height but increased length. Both maintain identical electrical specifications at rated conditions.

Q: Are there any PCB layout considerations for substitution?

A: Lead spacing remains constant at 15.00mm, so existing PCB holes are compatible. However, the length increases from 17.50mm to 18.00mm, requiring verification that component clearance and routing do not conflict with adjacent board features. The reduced seated height (10.50mm vs 11.00mm) may provide additional clearance in height-constrained applications.

Q: Do both parts meet the same compliance standards?

A: Yes, both BFC238340392 and B32672L8392J000 are ROHS3 compliant. The main part carries MSL 1 (unlimited moisture sensitivity), while the substitute lists MSL as not applicable, indicating equivalent or superior moisture handling characteristics.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. For designs requiring maximum voltage margin and thermal headroom, B32672L8392J000 is preferred. For applications with strict physical dimension constraints or established supply agreements with Vishay, BFC238340392 remains the primary choice. Both parts are active and available.