DPFF6D33J-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPFF6D33J-F is a 3300 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 630V DC operation with polypropylene metallized dielectric. This radial through-hole component is designed for high-pulse and DV/DT applications requiring stable capacitance and reliable performance across industrial temperature ranges. The part is currently in active production status with 653 units in stock.

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits selection from qualified alternatives meeting the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	3300 pF
Tolerance	±5%
Voltage Rating - DC	630V
Voltage Rating - AC	200V
Dielectric Material	Polypropylene (PP), Metallized
Operating Temperature Range	-55°C ~ 105°C
Mounting Type	Through Hole Radial
Lead Spacing	0.374" (9.50mm)
Termination	PC Pins
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the DPFF6D33J-F is determined by the following criteria:

Primary Matching Parameters:

Capacitance value: 3300 pF (exact match required)
Tolerance: ±5% (exact match required)
Dielectric material: Polypropylene (PP), Metallized
Mounting type: Through Hole Radial
Termination: PC Pins
RoHS compliance: ROHS3 Compliant

Allowable Variation Parameters:

DC voltage rating: Equal to or greater than 630V
AC voltage rating: Equal to or greater than 200V
Operating temperature range: Must encompass or match -55°C ~ 105°C
Physical dimensions: Variations permitted within PCB layout constraints
Lead spacing: Variations permitted within 0.374" ± tolerance

Two qualified substitutes meet these criteria and are listed below.

Parameter Comparison

Parameter	DPFF6D33J-F (Main)	715P33256JD3 (Substitute)	B32621A6332J000 (Substitute)
Manufacturer	Cornell Dubilier Electronics (CDE)	Cornell Dubilier Electronics (CDE)	EPCOS - TDK Electronics
Series	DPFF	Orange Drop® 715P	B3262* - MKP High Pulse (stacked)
Capacitance	3300 pF	3300 pF	3300 pF
Tolerance	±5%	±5%	±5%
Voltage Rating - DC	630V	600V	630V
Voltage Rating - AC	200V	200V	400V
Dielectric Material	Polypropylene (PP), Metallized	Polypropylene (PP), Metallized	Polypropylene (PP), Metallized - Stacked
Operating Temperature Range	-55°C ~ 105°C	-55°C ~ 85°C	-55°C ~ 105°C
Mounting Type	Through Hole Radial	Through Hole Radial	Through Hole Radial
Package / Case	Radial	Radial	Radial
Termination	PC Pins	PC Pins	PC Pins
Lead Spacing	0.374" (9.50mm)	0.375" (9.52mm)	0.394" (10.00mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active

Engineering Selection Recommendations

DPFF6D33J-F (Primary Selection) Select this part when the original specification is required and inventory is available. All parameters match the design requirements exactly. ROHS3 compliance and REACH unaffected status confirm regulatory qualification.

715P33256JD3 (Conditional Substitute) This substitute is qualified when the application operates at or below 85°C maximum ambient temperature and the 600V DC rating is sufficient for the circuit design. The DC voltage rating is 30V lower than the main part; verify that circuit operating margins remain acceptable. Lead spacing tolerance of ±0.001" is within acceptable PCB layout variation. ROHS3 compliance and active product status confirm availability and regulatory standing.

B32621A6332J000 (Primary Substitute) This substitute provides full parameter equivalence with identical 630V DC and -55°C ~ 105°C operating range. The stacked radial construction and higher 400V AC rating provide enhanced performance margin. Lead spacing of 0.394" (10.00mm) requires PCB layout verification to confirm compatibility with existing footprints. ROHS3 compliance and active product status confirm regulatory qualification and supply continuity.

Frequently Asked Questions (FAQ)

Q: Can 715P33256JD3 be used in place of DPFF6D33J-F in all applications? A: No. The 715P33256JD3 has a maximum operating temperature of 85°C, compared to 105°C for the DPFF6D33J-F. Applications requiring operation above 85°C ambient temperature require the main part or B32621A6332J000. Additionally, the 600V DC rating is 30V lower; verify circuit design margins accommodate this reduction.

Q: What is the difference between standard radial and stacked radial construction? A: The B32621A6332J000 uses stacked radial construction, which arranges multiple capacitor elements in a compact configuration. This design reduces physical footprint while maintaining electrical performance. Verify PCB layout compatibility, as the lead spacing differs from the main part.

Q: Are all three parts ROHS3 compliant? A: Yes. DPFF6D33J-F, 715P33256JD3, and B32621A6332J000 are all ROHS3 compliant and REACH unaffected, confirming regulatory qualification for industrial and commercial applications.

Q: What is the impact of lead spacing variation on PCB compatibility? A: Lead spacing varies between 9.50mm (DPFF6D33J-F), 9.52mm (715P33256JD3), and 10.00mm (B32621A6332J000). Variations of ±0.02mm are typically within PCB manufacturing tolerance. The 0.50mm difference for B32621A6332J000 requires PCB footprint verification to confirm hole alignment and trace routing compatibility.

Q: Can these parts be used interchangeably in high-pulse and DV/DT applications? A: All three parts are rated for high-pulse and DV/DT applications. However, verify that the selected substitute meets the specific circuit requirements for voltage rating, temperature range, and physical dimensions before implementation.

Q: What inventory levels are available for each part? A: DPFF6D33J-F has 653 units in stock. 715P33256JD3 has 1856 units in stock. B32621A6332J000 has 4597 units in stock. Verify current availability with your supplier before finalizing procurement decisions.

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