DPFF12S12J-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPFF12S12J-F is a 0.012 µF metallized polypropylene film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 1200V DC and 475V AC operation. This radial through-hole component is designed for high-pulse and DV/DT applications requiring stable capacitance and low dissipation factor across its operating temperature range of -55°C to 105°C. The part maintains Active product status with full ROHS3 compliance and REACH unaffected certification. Equivalent and substitute parts are identified based on matching electrical performance parameters, mechanical compatibility, and application suitability when the primary part is unavailable or when design requirements necessitate alternative specifications.

Substiute Parts

DPFF12S12J-F

Cornell Dubilier Electronics (CDE)In Stock: 1170DPFF12S12J-F Datasheet

Current PartRFQ

715P103516LD3

Cornell Dubilier Electronics (CDE)In Stock: 1377715P103516LD3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the DPFF12S12J-F is based on the following allowed parameters:

Electrical Compatibility Criteria:

• Capacitance value must be 0.012 µF (12000 pF) with ±5% tolerance
• DC voltage rating must be ≥1200V
• AC voltage rating must be ≥475V
• Dielectric material must be polypropylene (PP), metallized construction

Mechanical Compatibility Criteria:

• Mounting type must be through-hole, radial configuration
• Lead spacing must be 0.720" (18.30mm) for PCB hole pattern alignment
• Package/case must be radial

Regulatory & Environmental Criteria:

• RoHS3 compliance required
• Operating temperature range must encompass -55°C to 105°C or be acceptable for the intended application
• REACH unaffected status preferred for supply chain consistency

Application Suitability:

• Substitute must support high-pulse and DV/DT application requirements

The identified substitute part 715P103516LD3 does not meet the primary electrical compatibility criteria due to capacitance mismatch (10000 pF vs. 12000 pF required) and reduced maximum operating temperature (85°C vs. 105°C required). This part is listed in the provided substitute data but does not qualify as a direct equivalent under strict substitution rules.

Parameter Comparison

Engineering Selection Recommendations

Based on the provided parameter data, the DPFF12S12J-F maintains Active product status with 1093 pieces in current inventory. The listed substitute part 715P103516LD3 does not meet the strict substitution criteria established for this component category.

Critical Incompatibilities:

The 715P103516LD3 exhibits two parameter deviations that prevent direct substitution:

1. Capacitance Mismatch: The substitute provides 10000 pF versus the required 12000 pF. This 16.7% reduction falls outside the ±5% tolerance window and will alter circuit performance in applications where precise capacitance is required.

2. Operating Temperature Limitation: The substitute's maximum operating temperature of 85°C is 20°C below the DPFF12S12J-F specification of 105°C. Applications operating in elevated temperature environments or requiring the full -55°C to 105°C range cannot use this substitute.

Compliance Status:

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements. However, regulatory compliance alone does not establish functional equivalence.

Recommendation:

For applications requiring the DPFF12S12J-F specifications, use the primary part number. The 715P103516LD3 is suitable only for applications with different capacitance and temperature requirements, and should not be selected as a substitute for the DPFF12S12J-F without circuit redesign validation.

Frequently Asked Questions (FAQ)

Q: Can the 715P103516LD3 be used as a direct replacement for the DPFF12S12J-F?

A: No. The 715P103516LD3 has a capacitance value of 10000 pF compared to the required 12000 pF, representing a 16.7% deviation that exceeds the ±5% tolerance specification. Additionally, its maximum operating temperature of 85°C does not meet the 105°C requirement. Direct substitution is not permissible.

Q: What parameters must match exactly for a valid substitute?

A: Capacitance value (0.012 µF ±5%), DC voltage rating (≥1200V), AC voltage rating (≥475V), dielectric material (polypropylene metallized), lead spacing (0.720"), and mounting configuration (through-hole radial) must all be compatible. Operating temperature range must encompass -55°C to 105°C.

Q: Are there any mechanical compatibility issues between these parts?

A: Both parts share identical lead spacing (0.720" / 18.30mm) and radial through-hole mounting configuration, making them mechanically compatible at the PCB level. However, mechanical compatibility does not override electrical incompatibility.

Q: What is the significance of the ±5% tolerance specification?

A: The ±5% tolerance defines the acceptable capacitance variation from the nominal 0.012 µF value, establishing a range of 0.0114 µF to 0.0126 µF. Substitute parts must fall within this range or have equivalent tolerance specifications. The 715P103516LD3 at 10000 pF falls outside this acceptable range.

Q: Why is the operating temperature range important for substitution?

A: The operating temperature range defines the environmental conditions under which the capacitor maintains specified electrical performance. The DPFF12S12J-F supports -55°C to 105°C operation. A substitute with a reduced upper limit (85°C) cannot be used in applications requiring the full temperature range, as capacitor performance may degrade or fail outside the substitute's rated range.

Q: Are both parts currently available?

A: Yes. The DPFF12S12J-F has 1093 pieces in inventory, and the 715P103516LD3 has 1285 pieces in inventory. Both maintain Active product status with Cornell Dubilier Electronics.

Q: What compliance certifications apply to these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. These certifications satisfy regulatory requirements for electronic component use in regulated markets but do not establish functional equivalence.