DPFF12S47J-F Equivalent & Substitute Parts

Part Overview

The DPFF12S47J-F is a 0.047 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 1.2 kV DC and 475 V AC. This polypropylene metallized radial capacitor is designed for high-pulse and DV/DT applications. The product is currently active with 699 units in stock. Alternative components may be required due to supply constraints, design optimization, or application-specific performance requirements.

Substiute Parts

DPFF12S47J-F

Cornell Dubilier Electronics (CDE)In Stock: 724DPFF12S47J-F Datasheet

Current PartRFQ

BFC238350473

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1858BFC238350473 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the DPFF12S47J-F must maintain electrical and mechanical compatibility based on the following critical parameters:

Electrical Compatibility Criteria:

• Capacitance value: 0.047 µF (±5% tolerance acceptable)
• Voltage rating: minimum 1.2 kV DC (higher voltage ratings are acceptable as they maintain backward compatibility)
• AC voltage rating: minimum 475 V (higher AC ratings acceptable)
• Dielectric material: Polypropylene (PP), Metallized (maintains equivalent performance characteristics)
• Operating temperature range: -55°C ~ 105°C (must encompass or match this range)

Mechanical Compatibility Criteria:

• Mounting type: Through Hole radial configuration required
• Termination: PC Pins
• Lead spacing: 1.094" (27.80mm) nominal, with tolerance for minor variations within 27.50 mm to 27.80 mm range
• Package / Case: Radial

The substitute part BFC238350473 meets all electrical and mechanical criteria for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The BFC238350473 manufactured by Vishay Beyschlag/Draloric/BC Components is a direct substitute for the DPFF12S47J-F. Both components are active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across industrial and commercial applications.

The substitute part offers superior voltage ratings (1.6 kV DC and 550 V AC compared to 1.2 kV DC and 475 V AC), providing enhanced design margin for high-voltage circuit applications. Lead spacing differs by 0.3 mm (27.50 mm versus 27.80 mm), a variation within standard PCB manufacturing tolerances. The substitute maintains identical capacitance, tolerance, dielectric material, temperature range, and termination specifications.

Selection between these components should be based on application voltage requirements, PCB layout constraints, and component availability. The substitute part is suitable for direct replacement in equivalent circuit positions.

Frequently Asked Questions (FAQ)

Q: Can the BFC238350473 be used as a direct replacement for the DPFF12S47J-F in all applications?

A: Yes, the BFC238350473 is electrically and mechanically compatible for direct substitution. Both components share identical capacitance, tolerance, dielectric material, temperature range, and mounting configuration. The substitute's higher voltage ratings (1.6 kV DC and 550 V AC) provide additional safety margin.

Q: What is the significance of the lead spacing difference between these components?

A: The lead spacing difference of 0.3 mm (27.50 mm vs. 27.80 mm) is within standard PCB manufacturing tolerances. The substitution is mechanically compatible provided PCB pad spacing accommodates the 27.50 mm lead configuration. Component placement requires no board redesign.

Q: Are there any compliance or certification differences between the main part and substitute?

A: Both components carry identical regulatory certifications: ROHS3 compliance, REACH unaffected status, and MSL rating of 1 (Unlimited). No compliance restrictions apply to substitution.

Q: What are the key substitution criteria for this capacitor category?

A: Substitution compatibility is determined by matching or exceeding the following parameters: capacitance value (0.047 µF), voltage ratings (minimum 1.2 kV DC and 475 V AC), polypropylene dielectric material, operating temperature range (-55°C ~ 105°C), radial through-hole mounting, and PC pin termination.

Q: How do the physical dimensions affect component selection?

A: The main part measures 1.701" L x 0.850" W (43.20 mm x 21.60 mm) with 0.850" maximum seated height. The substitute measures 1.220" L x 0.433" W (31.00 mm x 11.00 mm) with 0.827" maximum seated height. The substitute is physically smaller, which may provide PCB layout advantages. Both dimensions must be verified against PCB design constraints and available mounting space.

Q: What are the primary applications for these film capacitors?

A: Both components are rated for high-pulse and DV/DT (high dV/dT) applications, suitable for switching power supplies, energy storage circuits, and transient suppression in high-voltage environments.