MPXQP22K Film Capacitor - Equivalent & Substitute Parts

Part Overview

The MPXQP22K is a 0.22 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 275V AC rating, designed for EMI and RFI suppression applications. This component features a metallized polypropylene dielectric in a radial through-hole package configuration.

The MPXQP22K is classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing maintenance, repair, and production requirements for legacy systems utilizing this capacitor.

Substiute Parts

MPXQP22K

Cornell Dubilier Electronics (CDE)In Stock: 721MPXQP22K Datasheet

Current PartRFQ

B32023A3224M000

EPCOS - TDK ElectronicsIn Stock: 2332B32023A3224M000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPXQP22K is evaluated based on the following critical parameters:

Electrical Compatibility:

• Capacitance value: 0.22 µF (exact match required)
• Voltage rating: Substitute must meet or exceed 275V AC
• Dielectric material: Polypropylene (PP), Metallized (same material class)
• Tolerance: Substitute tolerance must be compatible with circuit design requirements

Mechanical Compatibility:

• Mounting type: Through Hole (required for PCB compatibility)
• Package type: Radial (required for footprint compatibility)
• Lead spacing: 0.886" (22.50mm) (required for PCB hole alignment)
• Termination: PC Pins (required for soldering compatibility)

Regulatory & Environmental:

• RoHS3 Compliance (required for modern manufacturing standards)
• Operating temperature range: Substitute must support -40°C to 100°C minimum

The substitute part B32023A3224M000 meets these criteria with the following considerations: it provides higher voltage ratings (300V AC / 1500V DC), wider operating temperature range (-40°C to 110°C), and maintains identical lead spacing and mounting configuration. The tolerance specification differs (±20% vs. ±10%), which must be evaluated against specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

B32023A3224M000 as Substitute for MPXQP22K:

The B32023A3224M000 is an active product manufactured by EPCOS - TDK Electronics and is ROHS3 compliant, making it suitable for modern production and repair applications where the MPXQP22K is no longer available.

Electrical Considerations: The substitute provides higher voltage ratings (300V AC and 1500V DC) compared to the original 275V AC specification. This represents an upgrade in voltage capability and is electrically compatible for applications requiring the original 275V AC rating. The capacitance value (0.22 µF) is identical.

Tolerance Specification: The substitute has a ±20% tolerance compared to the original ±10% tolerance. Circuit designs that depend on the tighter ±10% tolerance specification must be evaluated to determine if the ±20% tolerance is acceptable for the intended application.

Physical Compatibility: Lead spacing is identical (0.886" / 22.50mm), ensuring PCB footprint compatibility. The substitute is physically larger (0.472" W vs. 0.276" W and 0.866" H vs. 0.669" H), which must be verified against available PCB space and clearance requirements.

Temperature Range: The substitute supports an extended operating temperature range (-40°C to 110°C) compared to the original (-40°C to 100°C), providing additional thermal margin.

Regulatory Compliance: Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the B32023A3224M000 directly replace the MPXQP22K without circuit modification?

A: The B32023A3224M000 is electrically compatible for the same 275V AC application due to its higher voltage rating. However, the ±20% tolerance (versus ±10% original) must be evaluated against circuit design specifications. Physical dimensions are larger, requiring verification of PCB space availability.

Q: What is the significance of the different tolerance specifications?

A: The MPXQP22K has ±10% tolerance, while the B32023A3224M000 has ±20% tolerance. In applications where capacitance value precision is critical to circuit performance (such as timing circuits or precision filters), the wider tolerance of the substitute may affect circuit behavior. Applications with less stringent capacitance requirements are unaffected.

Q: Are there physical space constraints when substituting?

A: Yes. The B32023A3224M000 is larger in width (0.472" vs. 0.276") and height (0.866" vs. 0.669"). PCB layout must accommodate these increased dimensions. Lead spacing remains identical at 0.886" (22.50mm), so hole alignment is compatible.

Q: Why is the substitute rated for 1500V DC when the original is only 275V AC?

A: The B32023A3224M000 is designed for higher voltage applications and represents an upgraded component. The higher voltage rating provides additional safety margin and is backward compatible with lower voltage requirements. For 275V AC applications, the 300V AC rating of the substitute is sufficient.

Q: Is the substitute suitable for the same EMI/RFI suppression applications?

A: Yes. Both components use identical dielectric material (metallized polypropylene) and are specified for EMI and RFI suppression applications. The substitute maintains functional equivalence for these applications.

Q: What is the inventory status of these components?

A: The MPXQP22K (obsolete) has 670 pieces in stock. The B32023A3224M000 (active product) has 2315 pieces in stock, providing better long-term availability for ongoing production and repair needs.