MMWA6P22K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The MMWA6P22K-F is a 0.22 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) designed for general-purpose applications requiring high voltage DC operation. This axial-mounted through-hole component features polyester metallized dielectric construction with a 630V DC rating and ±10% capacitance tolerance. The part is currently in active product status with 928 units available in inventory. Substitute parts become necessary when original stock is unavailable, when procurement lead times are critical, or when design flexibility permits equivalent component selection based on electrical and mechanical compatibility.

Substiute Parts

MMWA6P22K-F

Cornell Dubilier Electronics (CDE)In Stock: 971MMWA6P22K-F Datasheet

Current PartRFQ

QAK2J224KTP

NichiconIn Stock: 1125QAK2J224KTP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMWA6P22K-F is determined by strict alignment with the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Capacitance value must be 0.22 µF (no tolerance variation permitted)
• DC voltage rating must be 630V or higher
• Tolerance must be ±10% or tighter
• Dielectric material must be polyester metallized construction

Mechanical Compatibility Criteria:

• Mounting configuration must be through-hole axial
• Termination must be PC pins for direct PCB insertion
• Physical dimensions must accommodate existing PCB footprints and spacing requirements

Regulatory & Compliance Criteria:

• RoHS3 compliance required
• REACH unaffected status required
• ECCN EAR99 classification maintained

The QAK2J224KTP from Nichicon meets all electrical and mechanical substitution criteria. However, product status differences and operating temperature range variations must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: MMWA6P22K-F (CDE)

The MMWA6P22K-F remains the recommended component for new designs and ongoing production. This part maintains active product status with established manufacturing continuity, ensuring long-term availability and supply chain stability. The extended operating temperature range of -55°C to 125°C provides broader application flexibility. Current inventory of 928 units supports immediate procurement requirements.

Substitute Selection: QAK2J224KTP (Nichicon)

The QAK2J224KTP qualifies as an electrical and mechanical equivalent based on matching capacitance, voltage rating, tolerance, dielectric material, and termination specifications. However, the following factors require evaluation:

• Product Status: Obsolete designation indicates discontinued manufacturing, limiting future availability
• Operating Temperature Range: The narrower range (-40°C to 85°C) restricts use in applications requiring the full -55°C to 125°C performance envelope
• Physical Dimensions: Larger package footprint (16.50mm x 7.00mm x 28.00mm versus 10.90mm x 31.70mm) may require PCB layout verification for space-constrained designs

Substitution with QAK2J224KTP is permissible only when application operating temperatures remain within -40°C to 85°C and PCB layout accommodates the larger physical dimensions.

Frequently Asked Questions (FAQ)

Q: Can QAK2J224KTP directly replace MMWA6P22K-F in existing designs?

A: Electrical substitution is valid based on matching capacitance (0.22 µF), voltage rating (630V DC), tolerance (±10%), and dielectric material (polyester metallized). However, physical dimension differences require PCB layout verification. The substitute's larger package footprint may conflict with existing component spacing. Additionally, the narrower operating temperature range (-40°C to 85°C) must accommodate your application requirements.

Q: What are the critical parameters that must match for substitution?

A: Capacitance value, DC voltage rating, tolerance, dielectric material type, mounting configuration (through-hole axial), and termination style (PC pins) must match. These parameters determine functional compatibility in the circuit. Regulatory compliance (RoHS3, REACH) must also be maintained.

Q: Why does the QAK2J224KTP show obsolete status?

A: Obsolete designation indicates the manufacturer has discontinued production. While existing inventory may be available, future procurement cannot be guaranteed. This status affects supply chain reliability for long-term production requirements.

Q: Are there physical dimension constraints I should consider?

A: Yes. The MMWA6P22K-F measures 10.90mm diameter by 31.70mm length, while the QAK2J224KTP measures 16.50mm width by 7.00mm thickness by 28.00mm length. The substitute is physically larger and may not fit in space-constrained PCB layouts designed for the original component. Verify clearance with your PCB design before substitution.

Q: What is the significance of the operating temperature range difference?

A: The MMWA6P22K-F operates from -55°C to 125°C, while the QAK2J224KTP operates from -40°C to 85°C. If your application requires operation below -40°C or above 85°C, the substitute is not suitable. Verify your application's temperature requirements before selecting the substitute.

Q: Are both parts RoHS3 compliant?

A: Yes. Both MMWA6P22K-F and QAK2J224KTP are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.