DME4S22K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DME4S22K is a 0.022 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), designed for general-purpose applications requiring 400V DC voltage rating with polyester metallized dielectric construction. This component features radial through-hole mounting and operates across a temperature range of -55°C to 125°C.

The DME4S22K is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for legacy equipment utilizing this component.

Substiute Parts

DME4S22K

Cornell Dubilier Electronics (CDE)In Stock: 946DME4S22K Datasheet

Current PartRFQ

DME4S22K-F

Cornell Dubilier Electronics (CDE)In Stock: 2473DME4S22K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DME4S22K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters (Non-negotiable):

• Capacitance value: 0.022 µF (exact match)
• DC voltage rating: 400V minimum
• AC voltage rating: 200V minimum
• Tolerance: ±10% or tighter
• Dielectric material: Polyester, Metallized

Mechanical Parameters (Non-negotiable):

• Mounting configuration: Through-hole radial
• Lead spacing: 0.295" (7.50mm)
• Termination: PC Pins
• Operating temperature range: -55°C to 125°C minimum

Packaging Considerations:

• Physical dimensions must accommodate PCB layout constraints
• Height variation is permissible if component fits within available board space

Only parts meeting all electrical and mechanical criteria are classified as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

DME4S22K-F as Direct Substitute:

The DME4S22K-F is a direct electrical and mechanical equivalent to the obsolete DME4S22K. Both components are manufactured by Cornell Dubilier Electronics within the same DME series and share identical electrical specifications: 0.022 µF capacitance, ±10% tolerance, 400V DC / 200V AC voltage ratings, polyester metallized dielectric, and -55°C to 125°C operating temperature range.

Mechanical compatibility is confirmed through identical lead spacing (0.295" / 7.50mm), termination type (PC Pins), and radial through-hole mounting configuration. The primary dimensional difference is component height: DME4S22K-F measures 0.370" (9.40mm) seated height compared to 0.311" (7.90mm) for the original part. This 0.059" (1.50mm) height increase must be evaluated against available PCB clearance in the target application.

Compliance Advantage:

The DME4S22K-F holds ROHS3 compliance status, whereas the original DME4S22K is RoHS non-compliant. For applications subject to RoHS regulations or requiring compliance documentation, the DME4S22K-F satisfies current environmental and material restriction requirements. Both parts maintain REACH Unaffected status.

Availability Consideration:

The DME4S22K-F carries Active product status with 2,367 pieces in current inventory, ensuring reliable supply chain access. The original DME4S22K is classified as Obsolete with limited remaining stock (842 pieces).

Selection Criteria:

Select DME4S22K-F when:

• PCB layout accommodates the increased 0.370" seated height
• RoHS3 compliance is required or preferred
• Long-term supply chain continuity is necessary
• Active production support is required

Retain DME4S22K only when:

• PCB clearance constraints prohibit the taller DME4S22K-F profile
• Legacy compliance documentation specifically requires the original part number

Frequently Asked Questions (FAQ)

Q: Can DME4S22K-F be used as a direct replacement for DME4S22K in all applications?

A: DME4S22K-F is electrically and mechanically equivalent to DME4S22K across all critical parameters. The only constraint is physical height: DME4S22K-F measures 0.370" (9.40mm) seated height versus 0.311" (7.90mm) for the original. Verify available PCB clearance above the component location before substitution.

Q: What is the significance of the height difference between these parts?

A: The DME4S22K-F is 0.059" (1.50mm) taller than the original DME4S22K. This difference may affect PCB layout if the component is located near low-clearance areas, such as beneath heat sinks, shielding cans, or adjacent components. Measure available vertical space in the target PCB assembly before confirming substitution.

Q: Are the electrical specifications identical between DME4S22K and DME4S22K-F?

A: Yes. Both parts share identical capacitance (0.022 µF), tolerance (±10%), voltage ratings (400V DC / 200V AC), dielectric material (polyester metallized), operating temperature range (-55°C to 125°C), and lead spacing (0.295" / 7.50mm). No electrical performance difference exists between the two parts.

Q: What does the "-F" suffix in DME4S22K-F indicate?

A: The "-F" suffix denotes packaging format. DME4S22K-F is supplied in Bulk packaging, whereas the original DME4S22K uses standard packaging. The suffix does not indicate functional or electrical differences.

Q: Is DME4S22K-F RoHS compliant?

A: Yes. DME4S22K-F holds ROHS3 Compliant status. The original DME4S22K is RoHS non-compliant. For applications requiring RoHS compliance documentation, DME4S22K-F satisfies current regulatory requirements.

Q: Can I use DME4S22K-F in a design originally specified for DME4S22K?

A: Yes, provided PCB clearance accommodates the increased 0.370" seated height. All electrical parameters, lead spacing, and mounting configuration are identical. Verify component height clearance and confirm RoHS compliance requirements align with your application before finalizing the substitution.

Q: What is the lead spacing for both parts?

A: Both DME4S22K and DME4S22K-F feature 0.295" (7.50mm) lead spacing. This dimension is identical and ensures PCB hole pattern compatibility without modification.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both DME4S22K and DME4S22K-F operate across -55°C to 125°C temperature range, supporting high-temperature circuit requirements within this specification window.