DPFF4S47J-F

Part Overview

The DPFF4S47J-F is a 0.047 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 400V DC operation with a ±5% tolerance. This capacitor is constructed with polypropylene (PP) metallized dielectric and features radial through-hole mounting. The product is active and compliant with ROHS3 and REACH standards. Equivalent substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility is required.

Substiute Parts

DPFF4S47J-F

Cornell Dubilier Electronics (CDE)In Stock: 1017DPFF4S47J-F Datasheet

Current PartRFQ

B32621A4473J000

EPCOS - TDK ElectronicsIn Stock: 14446B32621A4473J000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DPFF4S47J-F are identified based on functional and electrical equivalence within the following critical parameters:

• Capacitance: 0.047 µF (exact match required)
• Voltage Rating (DC): 400V minimum
• Voltage Rating (AC): 200V minimum
• Tolerance: ±5% or better
• Dielectric Material: Polypropylene (PP), metallized construction
• Mounting Type: Through Hole radial configuration
• Temperature Range: -55°C to 105°C coverage
• Compliance: ROHS3 and REACH standards

The B32621A4473J000 (EPCOS - TDK Electronics) meets all electrical and mechanical requirements for substitution. Both parts maintain identical capacitance, voltage ratings, tolerance, and temperature operating range. The primary difference is in physical package dimensions and lead spacing, which must be verified against PCB layout requirements before implementation.

Parameter Comparison

Engineering Selection Recommendations

Both the DPFF4S47J-F and B32621A4473J000 are active products with ROHS3 and REACH compliance, confirming their suitability for current electronics applications. Selection between these parts depends on PCB layout constraints:

DPFF4S47J-F is appropriate when the original mounting footprint and lead spacing of 0.720" (18.30mm) can be maintained.

B32621A4473J000 is appropriate when a more compact radial form factor is acceptable. The reduced lead spacing of 0.394" (10.00mm) and smaller overall dimensions (13.00mm × 6.00mm) make this substitute suitable for space-constrained designs while maintaining identical electrical performance and temperature operating range.

Both parts operate across the full -55°C to 105°C temperature range and are rated for high-pulse and DV/DT applications. PCB layout verification is required to confirm compatibility with available mounting holes and trace routing.

Frequently Asked Questions (FAQ)

Q: Can the B32621A4473J000 be used as a direct replacement for the DPFF4S47J-F?

A: Electrically, yes. Both parts have identical capacitance (0.047 µF), voltage ratings (400V DC / 200V AC), tolerance (±5%), and operating temperature range (-55°C to 105°C). Physical compatibility depends on PCB hole spacing and layout geometry. The B32621A4473J000 has a smaller footprint with 0.394" lead spacing versus 0.720" for the DPFF4S47J-F.

Q: What are the key electrical parameters that must match for substitution?

A: Capacitance value, DC voltage rating, AC voltage rating, tolerance, and operating temperature range must all be identical or better. Both substitute parts maintain these specifications exactly.

Q: Does the difference in dielectric construction affect performance?

A: The DPFF4S47J-F uses standard metallized polypropylene, while the B32621A4473J000 uses a stacked metallized polypropylene construction. Both are polypropylene metallized dielectrics rated for identical electrical and thermal specifications. Dielectric material type and construction are both polypropylene metallized, suitable for high-pulse and DV/DT applications.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the DPFF4S47J-F and B32621A4473J000 are ROHS3 compliant and REACH unaffected, confirming suitability for regulated industries and export applications.

Q: What mounting verification is required before substitution?

A: PCB hole spacing must accommodate the lead spacing of the selected part. The DPFF4S47J-F requires 0.720" (18.30mm) hole spacing, while the B32621A4473J000 requires 0.394" (10.00mm) hole spacing. Component height and board clearance must also be verified against actual board dimensions.