DMM6S22K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DMM6S22K-F is a 0.022 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 630V DC voltage rating and ±10% tolerance. This radial through-hole component utilizes polyester metallized dielectric technology and operates across a temperature range of -55°C to 125°C. The part is classified as Active product status with ROHS3 compliance and REACH unaffected designation. Equivalent and substitute parts are identified for applications requiring identical or enhanced electrical performance within specified mechanical and environmental constraints.

Key Parameters

Parameter	Value
Capacitance	0.022 µF
Tolerance	±10%
Voltage Rating - DC	630V
Voltage Rating - AC	250V
Dielectric Material	Polyester, Metallized
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Through Hole
Package / Case	Radial
Termination	PC Pins
Lead Spacing	0.394" (10.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the DMM6S22K-F are classified based on electrical equivalence and mechanical compatibility. The primary substitution criteria are:

Electrical Parameters (Must Match or Exceed):

Capacitance: 0.022 µF (exact match required)
Voltage Rating - DC: 630V minimum
Voltage Rating - AC: 250V minimum
Tolerance: ±10% or tighter
Dielectric Material: Polyester, Metallized

Mechanical Parameters (Must Be Compatible):

Mounting Type: Through Hole
Package / Case: Radial
Termination: PC Pins
Lead Spacing: 0.394" (10.00mm) standard

Compliance Parameters:

RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

Substitutes are grouped into three categories: Direct equivalents (identical electrical and mechanical specifications), similar alternatives (same electrical ratings with minor dimensional variations), and upgrades (enhanced voltage ratings or tighter tolerances).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage DC	Voltage AC	Dielectric	Temp Range	Lead Spacing	Size L x W (mm)	Height Max (mm)	RoHS
DMM6S22K-F	Cornell Dubilier Electronics	0.022 µF	±10%	630V	250V	Polyester, Metallized	-55°C ~ 125°C	10.00mm	14.00 x 7.00	12.50	ROHS3
DME6S22K-F	Cornell Dubilier Electronics	0.022 µF	±10%	630V	250V	Polyester, Metallized	-55°C ~ 125°C	10.00mm	12.50 x 5.50	12.00	ROHS3
DME10S22K-F	Cornell Dubilier Electronics	0.022 µF	±10%	1000V	250V	Polyester, Metallized	-55°C ~ 125°C	12.50mm	15.50 x 7.50	17.00	ROHS3
B32521N8223J000	EPCOS - TDK Electronics	0.022 µF	±5%	630V	200V	Polyester, PET, Metallized - Stacked	-55°C ~ 125°C	10.00mm	13.00 x 5.00	11.00	ROHS3
QXK2J223KTP	Nichicon	0.022 µF	±10%	630V	250V	Polyester, Metallized	-40°C ~ 105°C	10.00mm	13.50 x 5.10	11.80	ROHS3

Engineering Selection Recommendations

Direct Equivalent - DME6S22K-F (Cornell Dubilier Electronics)

The DME6S22K-F is a direct electrical equivalent with identical capacitance, tolerance, voltage ratings, and dielectric material. This part maintains the same lead spacing (10.00mm) and operating temperature range. The primary difference is reduced physical dimensions (12.50 x 5.50mm versus 14.00 x 7.00mm), making it suitable for space-constrained applications. Both parts are ROHS3 compliant and REACH unaffected. Selection of this part is appropriate when board layout permits the smaller footprint.

Similar Alternative - QXK2J223KTP (Nichicon)

The QXK2J223KTP provides electrical equivalence with matching capacitance, tolerance, voltage ratings, and dielectric composition. This part maintains the standard 10.00mm lead spacing and is ROHS3 compliant. The operating temperature range is narrower (-40°C to 105°C versus -55°C to 125°C), which may limit use in extreme temperature environments. Physical dimensions are comparable to the DME6S22K-F. Selection is appropriate for general-purpose applications within the specified temperature constraints.

Upgrade Option - DME10S22K-F (Cornell Dubilier Electronics)

The DME10S22K-F offers enhanced voltage performance with a 1000V DC rating compared to the 630V specification of the main part. Capacitance, tolerance, and dielectric material remain identical. This part is suitable for applications requiring higher voltage margin or operating in elevated voltage environments. The increased physical dimensions (15.50 x 7.50mm) and modified lead spacing (12.50mm) require PCB layout verification. ROHS3 compliance is maintained.

Upgrade Option - B32521N8223J000 (EPCOS - TDK Electronics)

The B32521N8223J000 provides tighter tolerance (±5% versus ±10%) with identical 630V DC voltage rating and capacitance value. The dielectric composition includes polyethylene terephthalate (PET) with stacked metallized construction. AC voltage rating is 200V (versus 250V). This part is designated for automotive and EMI/RFI suppression applications. Physical dimensions are compact (13.00 x 5.00mm). Lead spacing remains at 10.00mm. ROHS3 compliance is maintained. Selection is appropriate when tolerance precision is critical.

Frequently Asked Questions (FAQ)

Q: Can DME6S22K-F replace DMM6S22K-F in all applications?

A: Yes, the DME6S22K-F is electrically equivalent with identical capacitance (0.022 µF), tolerance (±10%), voltage ratings (630V DC / 250V AC), and dielectric material. The reduced physical dimensions (12.50 x 5.50mm versus 14.00 x 7.00mm) require verification that the smaller footprint accommodates the PCB layout and mechanical clearances.

Q: What is the primary advantage of DME10S22K-F over DMM6S22K-F?

A: The DME10S22K-F provides a higher DC voltage rating of 1000V compared to 630V. This part is selected when applications require enhanced voltage margin or operate in higher voltage environments. The increased physical size and modified lead spacing (12.50mm versus 10.00mm) must be accommodated in the circuit design.

Q: Is B32521N8223J000 suitable for general-purpose applications?

A: The B32521N8223J000 is designated for automotive and EMI/RFI suppression applications with tighter tolerance (±5%). While electrically compatible at 630V DC and 0.022 µF, the AC voltage rating is 200V (versus 250V). Selection for general-purpose use requires confirmation that the AC voltage specification meets application requirements.

Q: What is the temperature operating range difference between QXK2J223KTP and DMM6S22K-F?

A: The DMM6S22K-F operates from -55°C to 125°C, while the QXK2J223KTP operates from -40°C to 105°C. The QXK2J223KTP has a narrower range and is not suitable for applications requiring operation below -40°C or above 105°C.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts (DME6S22K-F, DME10S22K-F, B32521N8223J000, and QXK2J223KTP) are ROHS3 compliant and REACH unaffected, matching the compliance status of the main part DMM6S22K-F.

Q: Can lead spacing differences affect PCB compatibility?

A: Yes, lead spacing must match PCB hole patterns. The DMM6S22K-F, DME6S22K-F, B32521N8223J000, and QXK2J223KTP all use 10.00mm lead spacing and are directly compatible. The DME10S22K-F uses 12.50mm lead spacing and requires PCB modification or redesign.

Q: What tolerance difference exists between B32521N8223J000 and other substitutes?

A: The B32521N8223J000 provides ±5% tolerance, which is tighter than the ±10% tolerance of DMM6S22K-F, DME6S22K-F, DME10S22K-F, and QXK2J223KTP. Tighter tolerance is beneficial for precision applications but is not required for general-purpose use.

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