DPP4S33K Equivalent & Substitute Parts

Part Overview

The DPP4S33K is a 0.033 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 400V DC voltage rating and polypropylene metallized dielectric. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and procurement planning. The part is designed for high-frequency and switching applications requiring low ESR performance in through-hole radial configurations.

Substiute Parts

DPP4S33K

Cornell Dubilier Electronics (CDE)In Stock: 1068DPP4S33K Datasheet

Current PartRFQ

DPP4S33K-F

Cornell Dubilier Electronics (CDE)In Stock: 716DPP4S33K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DPP4S33K is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 0.033 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating - DC: 400V (minimum requirement; higher ratings acceptable)
• Voltage Rating - AC: 250V (minimum requirement; higher ratings acceptable)
• Dielectric Material: Polypropylene (PP), Metallized (exact match required)
• Operating Temperature Range: -55°C to 105°C (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial (exact match required)
• Lead Spacing: 0.591" (15.00mm) (exact match required)
• Termination: PC Pins (exact match required)

The DPP4S33K-F meets all substitution criteria as a direct equivalent within the same DPP series from Cornell Dubilier Electronics.

Parameter Comparison

Engineering Selection Recommendations

The DPP4S33K-F is a direct functional equivalent to the obsolete DPP4S33K. Both parts share identical electrical specifications, physical dimensions, and mechanical characteristics. The primary distinction is product status and regulatory compliance.

DPP4S33K-F Selection Advantages:

• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance satisfies current environmental and regulatory requirements
• Identical electrical and mechanical parameters enable direct substitution without circuit redesign
• Same manufacturer (Cornell Dubilier Electronics) ensures consistent quality and performance characteristics

For new designs or system updates, the DPP4S33K-F is the appropriate selection. For legacy system maintenance where the original DPP4S33K is specified, the DPP4S33K-F provides full functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the DPP4S33K-F be used as a direct replacement for the DPP4S33K?

A: Yes. The DPP4S33K-F is electrically and mechanically identical to the DPP4S33K. All critical parameters including capacitance, voltage rating, dielectric material, operating temperature range, physical dimensions, and lead spacing are equivalent. Direct substitution is possible without circuit modification.

Q: What is the difference between DPP4S33K and DPP4S33K-F?

A: The primary differences are product status and regulatory compliance. The DPP4S33K is obsolete and RoHS non-compliant, while the DPP4S33K-F is an active product with ROHS3 compliance. Electrical and mechanical specifications are identical.

Q: Are there any packaging differences between these parts?

A: The DPP4S33K is supplied in standard packaging, while the DPP4S33K-F is supplied in bulk packaging. Both parts maintain identical physical dimensions and lead spacing (0.591" / 15.00mm), ensuring compatibility with existing PCB layouts.

Q: What applications are these capacitors suitable for?

A: Both the DPP4S33K and DPP4S33K-F are designed for high-frequency and switching applications. The low ESR characteristic and polypropylene metallized dielectric make them suitable for circuits requiring stable capacitance across frequency ranges and temperature variations.

Q: Are there any compliance considerations when substituting the DPP4S33K with DPP4S33K-F?

A: The DPP4S33K-F offers improved compliance status with ROHS3 certification, making it preferable for systems subject to environmental regulations. Both parts maintain REACH Unaffected status and EAR99 export classification.