DPPM12S18K-F

Part Overview

The DPPM12S18K-F is a 0.018 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), designed for applications requiring high-frequency switching and high-pulse environments. This polypropylene (PP) metallized radial capacitor operates at 1200V (1.2kV) DC with a ±10% tolerance and operates across a temperature range of -40°C to 105°C. The product maintains Active status and complies with ROHS3 standards. Substitute parts are identified to address availability, packaging preferences, or specific application requirements while maintaining functional compatibility.

Substiute Parts

DPPM12S18K-F

Cornell Dubilier Electronics (CDE)In Stock: 1064DPPM12S18K-F Datasheet

Current PartRFQ

B32642B0183J

EPCOS - TDK ElectronicsIn Stock: 4490B32642B0183J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The DPPM12S18K-F identifies B32642B0183J (EPCOS - TDK Electronics) as a functional substitute based on the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Capacitance: Both parts are rated at 0.018 µF
• Dielectric Material: Both use Polypropylene (PP), Metallized construction
• DC Voltage Rating: The DPPM12S18K-F operates at 1200V DC, while B32642B0183J operates at 1000V DC. The substitute voltage rating is lower, requiring application-level assessment for voltage margin requirements
• AC Voltage Rating: DPPM12S18K-F rated at 475V AC; B32642B0183J rated at 600V AC
• Tolerance: DPPM12S18K-F has ±10%; B32642B0183J has ±5% (tighter tolerance in substitute)

Mechanical Compatibility Criteria:

• Mounting Type: Both are Through Hole radial mount
• Termination: Both use PC Pins
• Operating Temperature: DPPM12S18K-F operates -40°C ~ 105°C; B32642B0183J operates -55°C ~ 100°C

Compliance Criteria:

• RoHS Status: Both are ROHS3 Compliant
• REACH Status: Both are REACH Unaffected
• Product Status: Both are Active

Substitution is valid where voltage derating is acceptable within circuit design specifications.

Parameter Comparison

Engineering Selection Recommendations

DPPM12S18K-F (Primary Selection): Active product status with ROHS3 and REACH compliance. DC voltage rating of 1200V provides higher voltage margin for high-frequency switching applications. Suitable for applications requiring the specified operating temperature range of -40°C to 105°C.

B32642B0183J (Substitute Selection): Active product status with ROHS3 and REACH compliance. This EPCOS - TDK Electronics part provides a physically smaller footprint (18.00mm x 5.00mm versus 31.00mm x 11.00mm) with tighter capacitance tolerance (±5% versus ±10%). The DC voltage rating is 1000V, representing a 200V reduction from the primary part. Selection of this substitute requires confirmation that circuit design specifications accommodate the reduced voltage rating and that lead spacing (15.00mm versus 26.50mm) meets PCB layout requirements.

Frequently Asked Questions (FAQ)

Q: Can B32642B0183J be directly substituted for DPPM12S18K-F in all applications? A: Substitution is valid only where circuit voltage requirements are met by the 1000V DC rating of B32642B0183J. The DPPM12S18K-F operates at 1200V DC; any application requiring this full voltage margin cannot use the substitute without circuit redesign.

Q: How do the physical dimensions impact substitution? A: DPPM12S18K-F measures 31.00mm x 11.00mm with 26.50mm lead spacing. B32642B0183J measures 18.00mm x 5.00mm with 15.00mm lead spacing. The substitute is significantly smaller and requires PCB layout redesign. Verify that lead spacing accommodates existing circuit board footprints.

Q: What is the difference in capacitance tolerance between these parts? A: DPPM12S18K-F carries ±10% tolerance; B32642B0183J carries ±5% tolerance. The substitute provides tighter capacitance control, which may be advantageous in precision frequency-dependent applications.

Q: Are both parts compliant with environmental regulations? A: Both DPPM12S18K-F and B32642B0183J are ROHS3 Compliant and REACH Unaffected, meeting current environmental regulatory requirements.

Q: What is the operating temperature difference? A: DPPM12S18K-F operates from -40°C to 105°C; B32642B0183J operates from -55°C to 100°C. The substitute has a lower upper temperature limit (100°C versus 105°C) but a lower minimum temperature (-55°C versus -40°C). Applications requiring operation above 100°C cannot use B32642B0183J.