DPP6D68K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPP6D68K-F is a 6800 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DPP series. This radial polypropylene metallized capacitor is rated for 630V DC operation with ±10% tolerance and is designed for high-frequency and switching applications. The part is currently Active in product status with 794 units in stock. Film capacitors of this specification are essential in power conversion circuits, filtering applications, and high-frequency signal processing where low ESR and stable dielectric performance are required. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

DPP6D68K-F

Cornell Dubilier Electronics (CDE)In Stock: 892DPP6D68K-F Datasheet

Current PartRFQ

QXT2J682KRPT

NichiconIn Stock: 2736QXT2J682KRPT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DPP6D68K-F are identified based on strict electrical and mechanical compatibility criteria. The following parameters must align for a valid substitution:

Mandatory Matching Parameters:

• Capacitance value: 6800 pF (exact match required)
• Tolerance: ±10% (identical specification)
• Voltage Rating - DC: 630V (substitute must equal or exceed)
• Dielectric Material: Polypropylene (PP), Metallized (same material class)
• Mounting Type: Through Hole, Radial (same form factor)
• Lead Spacing: 0.591" (15.00mm) (PCB compatibility requirement)
• Termination: PC Pins (same connection type)

Acceptable Variation Parameters:

• Voltage Rating - AC: May vary (250V to 300V acceptable)
• Physical dimensions: Minor variations acceptable if lead spacing matches
• Operating Temperature Range: May vary within industrial standards
• Packaging: May differ (Bulk vs. standard packaging)
• RoHS/REACH Status: Must maintain compliance level

The QXT2J682KRPT from Nichicon meets all mandatory matching criteria and is classified as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

DPP6D68K-F (Cornell Dubilier Electronics)

Select this part when:

• Original design specification requires CDE DPP series components
• Operating environment includes extended low-temperature operation (below -40°C)
• PCB layout requires the larger footprint (19.50mm x 9.00mm)
• 250V AC rating is specified in design documentation
• Inventory availability of 794 units supports immediate procurement

QXT2J682KRPT (Nichicon)

Select this part when:

• Space constraints favor compact form factor (19.00mm x 19.00mm, 14.80mm height)
• Operating temperature range of -40°C to 105°C meets application requirements
• Higher AC voltage rating (300V) provides additional design margin
• Nichicon component qualification is acceptable in design standards
• Bulk packaging aligns with procurement volume requirements (2726 units available)

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory conformance. Both are Active products with established supply chains. The selection between these parts should be based on physical space availability on the PCB and operating temperature requirements of the specific application.

Frequently Asked Questions (FAQ)

Q: Can QXT2J682KRPT be used as a direct replacement for DPP6D68K-F in existing designs?

A: Yes, the QXT2J682KRPT is a direct substitute. Both parts share identical capacitance (6800 pF), tolerance (±10%), DC voltage rating (630V), dielectric material (polypropylene metallized), lead spacing (15.00mm), and termination type (PC pins). The substitute has a more compact physical footprint and narrower low-temperature operating range (-40°C vs. -55°C minimum).

Q: What is the impact of the different physical dimensions?

A: The QXT2J682KRPT is more compact (19.00mm x 6.00mm vs. 19.50mm x 9.00mm) with lower seated height (14.80mm vs. 17.00mm). Lead spacing remains identical at 15.00mm, ensuring PCB hole pattern compatibility. The compact size may provide advantages in space-constrained layouts but requires verification that the narrower width does not conflict with adjacent components.

Q: Are there temperature range limitations when substituting?

A: The DPP6D68K-F operates from -55°C to 105°C, while the QXT2J682KRPT operates from -40°C to 105°C. If the application requires operation below -40°C, the DPP6D68K-F must be retained. For applications within the -40°C to 105°C range, both parts are equivalent.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the DPP6D68K-F and QXT2J682KRPT are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components in most markets.

Q: What is the difference in AC voltage rating between these parts?

A: The DPP6D68K-F is rated for 250V AC, while the QXT2J682KRPT is rated for 300V AC. Both are rated for 630V DC. The higher AC rating of the substitute provides additional design margin but does not affect DC circuit operation.

Q: Can these parts be used interchangeably in high-frequency and switching applications?

A: Yes. Both parts are specified for high-frequency and switching applications with low ESR characteristics. The polypropylene metallized dielectric in both parts provides stable performance in these application classes.

Q: What packaging differences exist between these parts?

A: The DPP6D68K-F is supplied in standard packaging with 794 units in stock. The QXT2J682KRPT is supplied in bulk packaging with 2726 units available. Packaging format does not affect electrical or mechanical compatibility.