DME2S22K-F Equivalent & Substitute Parts Reference

Part Overview

The DME2S22K-F is a 0.022 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 250V DC voltage rating and ±10% tolerance. This radial through-hole component utilizes polyester metallized dielectric technology and operates across the temperature range of -55°C to 125°C. The part is currently active in production with ROHS3 compliance and is suitable for general-purpose applications requiring reliable capacitive filtering and energy storage in electronic circuits.

Equivalent and substitute parts are necessary when the original component becomes unavailable, when design requirements demand higher voltage ratings or improved tolerance specifications, or when alternative manufacturers' components offer superior inventory availability or cost optimization while maintaining functional compatibility.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	0.022 µF	Must remain identical across all substitutes
Voltage Rating - DC	250V	Minimum acceptable rating; higher ratings are acceptable
Voltage Rating - AC	160V	Minimum acceptable rating; higher ratings are acceptable
Tolerance	±10%	Tighter tolerances (±5%) are acceptable; looser tolerances are not
Dielectric Material	Polyester, Metallized	Must be polyester-based film; metallized construction required
Operating Temperature Range	-55°C to 125°C	Minimum acceptable range; wider ranges are acceptable
Mounting Type	Through Hole	Must remain through-hole radial configuration
Lead Spacing	0.295" (7.50mm)	Critical for PCB compatibility; must match or be compatible with board layout
Termination	PC Pins	Must be PC pin termination for through-hole mounting
RoHS Status	ROHS3 Compliant	Regulatory requirement; all substitutes must maintain compliance

Substitute Part Grouping Explanation

Substitution logic for the DME2S22K-F is based strictly on the following criteria:

Primary Substitution Criteria:

Capacitance value must equal 0.022 µF exactly
Voltage rating (DC) must be ≥250V
Voltage rating (AC) must be ≥160V
Tolerance must be ≤±10% (tighter tolerances acceptable)
Dielectric must be polyester-based, metallized construction
Operating temperature range must encompass -55°C to 125°C
Mounting configuration must be through-hole radial
Lead spacing must be 0.295" (7.50mm) or mechanically compatible
Termination must be PC pins
RoHS3 compliance required

Upgrade Substitutes (higher voltage ratings, same or better tolerance):

DME4S22K-F: 400V DC rating (CDE same-series upgrade)
B32520C6223K000: 400V DC rating, ±10% tolerance (EPCOS cross-manufacturer)
B32520C6223J000: 400V DC rating, ±5% tolerance (EPCOS improved tolerance)

Similar Substitutes (equivalent voltage rating, different packaging or lead spacing):

B32529C3223K000: 250V DC rating, ±10% tolerance, compact form factor (EPCOS)
B32529C3223K189: 250V DC rating, ±10% tolerance, cut-tape packaging (EPCOS)

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage DC	Voltage AC	Dielectric	Temp Range	Lead Spacing	Package Type	RoHS Status
DME2S22K-F	CDE	0.022 µF	±10%	250V	160V	Polyester, Metallized	-55°C to 125°C	0.295" (7.50mm)	Radial Bulk	ROHS3
DME4S22K-F	CDE	0.022 µF	±10%	400V	200V	Polyester, Metallized	-55°C to 125°C	0.295" (7.50mm)	Radial Bulk	ROHS3
B32520C6223K000	EPCOS - TDK	0.022 µF	±10%	400V	200V	Polyester (PET), Metallized - Stacked	-55°C to 125°C	0.295" (7.50mm)	Radial Bulk	ROHS3
B32520C6223J000	EPCOS - TDK	0.022 µF	±5%	400V	200V	Polyester (PET), Metallized - Stacked	-55°C to 125°C	0.295" (7.50mm)	Radial Bulk	ROHS3
B32529C3223K000	EPCOS - TDK	0.022 µF	±10%	250V	160V	Polyester (PET), Metallized - Stacked	-55°C to 125°C	0.197" (5.00mm)	Radial Bulk	ROHS3
B32529C3223K189	EPCOS - TDK	0.022 µF	±10%	250V	160V	Polyester (PET), Metallized - Stacked	-55°C to 125°C	0.197" (5.00mm)	Radial Cut Tape	ROHS3

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (0.295" Lead Spacing):

Select DME4S22K-F or B32520C6223K000 when the application circuit can accommodate higher voltage ratings. Both parts maintain identical lead spacing (0.295" / 7.50mm) and are direct mechanical substitutes. DME4S22K-F preserves the same manufacturer lineage (CDE), while B32520C6223K000 offers significantly higher inventory availability (29,534 units in stock) and cross-manufacturer compatibility.

Select B32520C6223J000 when circuit design specifications require improved capacitance tolerance (±5% versus ±10%). This part provides tighter tolerance control while maintaining 400V DC rating and identical lead spacing.

For Voltage-Equivalent Substitution (250V DC Rating):

B32529C3223K000 and B32529C3223K189 maintain the original 250V DC voltage specification but feature reduced lead spacing (0.197" / 5.00mm). These parts are suitable only when PCB layout accommodates the narrower lead pitch. B32529C3223K189 is supplied in cut-tape packaging, while B32529C3223K000 is supplied in bulk packaging.

Compliance and Production Status:

All listed substitutes maintain ROHS3 compliance and active production status. All parts operate within the -55°C to 125°C temperature range. Selection should prioritize inventory availability and lead-time requirements alongside electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can B32520C6223K000 be used as a direct replacement for DME2S22K-F?

A: Yes. B32520C6223K000 is electrically and mechanically compatible. It provides identical capacitance (0.022 µF), matching tolerance (±10%), identical lead spacing (0.295" / 7.50mm), and superior voltage rating (400V DC versus 250V DC). The higher voltage rating ensures operation within all conditions where the original part functions. Both parts maintain ROHS3 compliance and -55°C to 125°C operating range.

Q: What is the difference between B32520C6223K000 and B32520C6223J000?

A: Both parts are electrically identical except for tolerance specification. B32520C6223J000 provides ±5% tolerance compared to ±10% for B32520C6223K000. The ±5% tolerance specification ensures tighter capacitance control and is suitable for applications requiring precise capacitive values. Both parts share identical voltage ratings (400V DC), lead spacing (0.295" / 7.50mm), and physical dimensions.

Q: Why do B32529C3223K000 and B32529C3223K189 have different lead spacing?

A: Both B32529C3223K000 and B32529C3223K189 are compact form-factor variants with 0.197" (5.00mm) lead spacing, compared to the standard 0.295" (7.50mm) spacing of the DME2S22K-F. The reduced lead pitch allows for higher component density on PCBs. These parts are suitable only when the target PCB layout accommodates the narrower spacing. The difference between the two is packaging format: B32529C3223K000 is supplied in bulk, while B32529C3223K189 is supplied in cut-tape format.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, matching the original DME2S22K-F specification. This ensures regulatory compliance for applications subject to RoHS directives.

Q: Can I use a 400V-rated part in a circuit designed for 250V?

A: Yes. A 400V-rated capacitor operates safely in circuits specified for 250V DC. The voltage rating represents the maximum safe operating voltage; operating below the rated voltage presents no electrical risk. Higher voltage ratings provide additional safety margin and reliability in the application.

Q: What is the difference between bulk and cut-tape packaging?

A: Bulk packaging (standard reel or tray) is suitable for high-volume manufacturing and automated assembly processes. Cut-tape packaging supplies individual components pre-cut and separated, suitable for lower-volume applications, prototyping, or manual assembly. Both packaging formats contain identical components; the difference is presentation and handling method.

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