DMM1P22K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DMM1P22K-F is a 0.22 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DMM series. This radial through-hole component operates across a temperature range of -55°C to 125°C with a 100V DC voltage rating and ±10% capacitance tolerance. The part is ROHS3 compliant and carries an active product status. Substitute parts are identified when original inventory becomes unavailable or when design requirements necessitate alternative electrical or mechanical specifications within the allowed parameter range for this capacitor category.

Substiute Parts

DMM1P22K-F

Cornell Dubilier Electronics (CDE)In Stock: 737DMM1P22K-F Datasheet

Current PartRFQ

B32521C3224J000

EPCOS - TDK ElectronicsIn Stock: 4450B32521C3224J000 Datasheet

UpgradeRFQ

B32521C3224K000

EPCOS - TDK ElectronicsIn Stock: 4921B32521C3224K000 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DMM1P22K-F are qualified based on the following criteria:

Mandatory Matching Parameters:

• Capacitance value: 0.22 µF (exact match required)
• Mounting type: Through Hole (radial configuration)
• Lead spacing: 0.394 inches (10.00 mm)
• Termination: PC Pins
• Operating temperature range: -55°C to 125°C minimum
• Dielectric material category: Polyester-based film
• RoHS compliance: ROHS3 Compliant

Allowable Variation Parameters:

• Voltage rating: Equal to or greater than 100V DC
• Tolerance: Equal to or tighter than ±10%
• Physical dimensions: Minor variations acceptable within radial package constraints
• Regulatory certifications: Equal or enhanced compliance status

The two substitute parts identified (B32521C3224J000 and B32521C3224K000) meet all mandatory parameters and offer enhanced voltage ratings (250V DC) and improved or equivalent tolerance specifications, making them direct functional replacements in applications where the original part is unavailable.

Parameter Comparison

Engineering Selection Recommendations

B32521C3224J000 Selection Criteria: This substitute part is suitable when tighter capacitance tolerance (±5%) is required compared to the original ±10% specification. The enhanced voltage rating of 250V DC provides additional design margin in applications operating below 100V. The part carries AEC-Q200 automotive qualification, indicating suitability for automotive and industrial environments. ROHS3 compliance and REACH unaffected status match the original part's regulatory standing.

B32521C3224K000 Selection Criteria: This substitute maintains the ±10% tolerance specification of the original DMM1P22K-F while providing the same 250V DC voltage rating advantage. The AEC-Q200 automotive qualification and equivalent regulatory compliance make this part a direct functional replacement. Selection between B32521C3224J000 and B32521C3224K000 depends on whether the tighter ±5% tolerance is required for the specific application.

Physical Compatibility Note: Both substitute parts feature slightly smaller footprint dimensions (13.00mm x 5.00mm versus 14.00mm x 6.00mm) with identical 10.00mm lead spacing. PCB layout verification is required to confirm adequate clearance in the original mounting location, though the smaller footprint typically presents no compatibility issues in standard through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can B32521C3224J000 or B32521C3224K000 be used as direct drop-in replacements for DMM1P22K-F?

A: Both parts are functionally compatible as direct replacements. The identical capacitance (0.22 µF), lead spacing (10.00mm), operating temperature range (-55°C to 125°C), and termination type (PC Pins) ensure electrical and mechanical compatibility. The smaller physical dimensions of the substitute parts do not affect circuit performance and typically do not create PCB layout conflicts.

Q: What is the difference between B32521C3224J000 and B32521C3224K000?

A: The primary difference is capacitance tolerance. B32521C3224J000 offers ±5% tolerance, while B32521C3224K000 maintains ±10% tolerance matching the original part. Both share identical voltage ratings (250V DC), dielectric material composition, operating temperature range, and regulatory compliance. Selection depends on tolerance requirements for the specific application.

Q: Are the substitute parts suitable for automotive applications?

A: Yes. Both B32521C3224J000 and B32521C3224K000 carry AEC-Q200 automotive qualification, making them suitable for automotive and industrial environments. The original DMM1P22K-F does not specify automotive qualification, so the substitutes provide enhanced qualification status.

Q: What is the voltage derating consideration when using 250V-rated substitutes in a 100V application?

A: The 250V DC rating of the substitute parts provides a 2.5:1 voltage safety margin when used in 100V DC applications. This enhanced margin improves component reliability and extends operational life in the specified temperature range. No derating adjustment is required for the application.

Q: Are there any physical clearance concerns with the smaller substitute part dimensions?

A: The substitute parts measure 13.00mm x 5.00mm compared to the original 14.00mm x 6.00mm. The 10.00mm lead spacing remains identical. In most through-hole PCB designs, the smaller footprint presents no clearance issues. PCB layout review is recommended to confirm adequate spacing around the component mounting location.

Q: Do the substitute parts maintain the same moisture sensitivity level?

A: The substitute parts list Moisture Sensitivity Level (MSL) as "Not Applicable," indicating enhanced moisture resistance compared to the original part's MSL 1 (Unlimited) rating. This represents an improvement in environmental robustness.

Q: Are all parts ROHS3 compliant?

A: Yes. The DMM1P22K-F and both substitute parts (B32521C3224J000 and B32521C3224K000) are ROHS3 compliant and REACH unaffected, ensuring regulatory compliance across all three options.