DPP6S33K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPP6S33K-F is a 0.033 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DPP series. This radial through-hole component operates at 630V DC with polypropylene metallized dielectric construction. The part is Active status with 1097 units in current inventory. Film capacitors of this specification are essential in high-frequency and switching applications where low ESR performance and stable capacitance across temperature ranges are required. Substitute parts are identified to provide alternative sourcing options when primary inventory is unavailable or when design flexibility permits component interchange.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	0.033 µF	Must match exactly
Voltage Rating - DC	630V	Must match or exceed
Tolerance	±10%	Must match or be tighter
Dielectric Material	Polypropylene (PP), Metallized	Must match for performance characteristics
Mounting Type	Through Hole Radial	Must match for PCB compatibility
Operating Temperature Range	-55°C ~ 105°C	Substitute must cover or exceed this range
RoHS Status	ROHS3 Compliant	Must maintain compliance requirement

Substitute Part Grouping Explanation

Substitute parts for the DPP6S33K-F are identified based on strict equivalence of the following critical parameters:

Mandatory Match Criteria:

Capacitance value: 0.033 µF (exact match required)
DC voltage rating: 630V (substitute must equal or exceed)
Tolerance: ±10% (substitute tolerance must be equal or tighter)
Dielectric type: Polypropylene (PP), Metallized (exact match required)
Mounting configuration: Through Hole Radial (exact match required)
Termination style: PC Pins (exact match required)

Compliance Criteria:

RoHS3 Compliant status maintained
REACH Unaffected classification maintained
ECCN EAR99 classification maintained

The QXT2J333KRPT from Nichicon meets all mandatory equivalence criteria and maintains required compliance standards. Physical dimensions and lead spacing differ between the main part and substitute, requiring PCB layout verification before implementation.

Parameter Comparison

Parameter	DPP6S33K-F (CDE)	QXT2J333KRPT (Nichicon)	Match Status
Manufacturer	Cornell Dubilier Electronics	Nichicon	Different
Series	DPP	QXT	Different
Capacitance	0.033 µF	0.033 µF	Equivalent
Tolerance	±10%	±10%	Equivalent
Voltage Rating - AC	250V	300V	Substitute Higher
Voltage Rating - DC	630V	630V	Equivalent
Dielectric Material	Polypropylene (PP), Metallized	Polypropylene (PP), Metallized	Equivalent
Operating Temperature Range	-55°C ~ 105°C	-40°C ~ 105°C	Substitute Narrower
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	Radial	Radial	Equivalent
Size / Dimension	1.260" L x 0.433" W (32.00mm x 11.00mm)	0.945" L x 0.303" W (24.00mm x 7.70mm)	Different
Height - Seated (Max)	0.787" (20.00mm)	0.752" (19.10mm)	Similar
Lead Spacing	1.083" (27.50mm)	0.787" (20.00mm)	Different
Termination	PC Pins	PC Pins	Equivalent
Applications	High Frequency, Switching	High Frequency, Switching	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent
ECCN	EAR99	EAR99	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

DPP6S33K-F (Primary Selection): The DPP6S33K-F maintains Active product status with 1097 units in current inventory. This part satisfies ROHS3 compliance, REACH Unaffected classification, and EAR99 export control designation. The operating temperature range of -55°C to 105°C accommodates extended environmental specifications. Low ESR feature supports high-frequency and switching applications. Selection of this part is appropriate when inventory availability and extended low-temperature performance (-55°C minimum) are design requirements.

QXT2J333KRPT (Substitute Selection): The QXT2J333KRPT from Nichicon maintains Active product status with 1059 units in current inventory. This part meets identical capacitance, tolerance, DC voltage rating, and dielectric specifications. ROHS3 compliance, REACH Unaffected status, and EAR99 classification are maintained. The operating temperature range of -40°C to 105°C is narrower than the primary part, limiting use in applications requiring extended low-temperature operation below -40°C. Physical dimensions and lead spacing differ significantly; PCB layout modification is required for implementation. Selection of this part is appropriate when sourcing flexibility is needed and operating temperature minimum of -40°C is acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Can QXT2J333KRPT replace DPP6S33K-F in all applications?

A: Electrical substitution is valid for applications operating within the temperature range of -40°C to 105°C. Applications requiring operation below -40°C must use the DPP6S33K-F. PCB layout modification is mandatory due to different physical dimensions and lead spacing.

Q: What are the physical differences between these parts?

A: The DPP6S33K-F measures 1.260" L x 0.433" W with 1.083" lead spacing. The QXT2J333KRPT measures 0.945" L x 0.303" W with 0.787" lead spacing. Both have similar seated heights (20.00mm and 19.10mm respectively). The substitute part is physically smaller and requires PCB footprint redesign.

Q: Are both parts RoHS compliant?

A: Yes. Both DPP6S33K-F and QXT2J333KRPT are ROHS3 Compliant and REACH Unaffected, maintaining equivalent regulatory compliance status.

Q: What is the difference in AC voltage rating?

A: The DPP6S33K-F is rated 250V AC, while QXT2J333KRPT is rated 300V AC. Both are rated 630V DC. For AC applications, the QXT2J333KRPT provides higher voltage margin. For DC applications, both parts are equivalent.

Q: Can I use these parts interchangeably without design changes?

A: No. While electrical parameters are equivalent, physical dimensions and lead spacing differ. PCB layout verification and potential footprint modification are required before substitution.

Q: What applications are these capacitors suitable for?

A: Both parts are specified for High Frequency and Switching applications. The polypropylene metallized dielectric and low ESR characteristics support these use cases.

Q: How do I verify compatibility before ordering the substitute?

A: Confirm that your application operates within -40°C to 105°C temperature range. Verify PCB layout can accommodate the smaller physical dimensions and 20.00mm lead spacing of the QXT2J333KRPT. Confirm AC voltage requirements do not exceed 300V for the substitute part.

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