DMM4P1K-F Equivalent & Substitute Parts

Part Overview

The DMM4P1K-F is a 0.1 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) rated for 400V DC operation with ±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 1096 units in stock and maintains full ROHS3 compliance.

Equivalent and substitute parts are identified to address inventory availability, lead time requirements, or specific application constraints while maintaining electrical and mechanical compatibility within defined parameters.

Key Parameters

Parameter	Value	Criticality for Substitution
Capacitance	0.1 µF	Critical - Must match exactly
Voltage Rating (DC)	400V	Critical - Minimum requirement
Tolerance	±10%	Critical - Defines acceptable variance
Dielectric Material	Polyester, Metallized	Critical - Determines electrical characteristics
Mounting Type	Through Hole Radial	Critical - PCB compatibility
Lead Spacing	0.591" (15.00mm)	Critical - PCB footprint requirement
Operating Temperature	-55°C to 125°C	Important - Application environment
RoHS Status	ROHS3 Compliant	Important - Regulatory compliance

Substitute Part Grouping Explanation

Substitute parts are classified into three categories based on electrical and mechanical compatibility with the DMM4P1K-F:

Direct Equivalents maintain identical electrical specifications (0.1 µF, 400V DC, ±10% tolerance) and standard lead spacing (15.00mm), with variations only in physical dimensions or series designation. These parts are interchangeable without circuit redesign.

Similar Parts share the same electrical specifications but differ in physical dimensions or lead spacing. These require PCB layout verification before substitution.

Upgrade Parts exceed the voltage rating or tolerance specifications of the original part. These provide enhanced performance margins and are suitable for applications requiring higher voltage headroom or tighter tolerance control.

Substitution eligibility is determined by the following parameters:

Capacitance value (0.1 µF - non-negotiable)
Voltage rating (minimum 400V DC)
Tolerance (±10% or better)
Dielectric type (polyester metallized)
Mounting configuration (through-hole radial)
Lead spacing compatibility with PCB design

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage (DC)	Tolerance	Lead Spacing	Length (mm)	Width (mm)	Height (mm)	Operating Temp	Product Status	Inventory
DMM4P1K-F	CDE	0.1 µF	400V	±10%	15.00mm	18.00	6.50	13.00	-55 to 125°C	Active	1096
160104K400G-F	CDE	0.1 µF	400V	±10%	15.00mm	18.00	6.00	12.00	-55 to 105°C	Active	3385
DME4P1K-F	CDE	0.1 µF	400V	±10%	10.00mm	12.50	6.50	13.50	-55 to 125°C	Active	2400
DMT4P1K-F	CDE	0.1 µF	400V	±10%	18.60mm	22.40	12.00	19.37	-55 to 125°C	Active	2731
DME6P1K-F	CDE	0.1 µF	630V	±10%	15.00mm	18.50	6.50	15.50	-55 to 125°C	Active	32719
B32522C6104K	EPCOS - TDK	0.1 µF	400V	±10%	15.00mm	18.00	5.00	10.50	-55 to 125°C	Active	5086
B32522C6104J000	EPCOS - TDK	0.1 µF	400V	±5%	15.00mm	18.00	5.00	10.50	-55 to 125°C	Not For New Designs	3548
B32522N6104J000	EPCOS - TDK	0.1 µF	450V	±5%	15.00mm	18.00	5.00	10.50	-55 to 125°C	Active	4764
B32522Q8104J000	EPCOS - TDK	0.1 µF	630V	±5%	15.00mm	18.00	7.00	12.50	-55 to 125°C	Active	2453
B32522Q8104K000	EPCOS - TDK	0.1 µF	630V	±10%	15.00mm	18.00	7.00	12.50	-55 to 125°C	Active	4481
104MSR400K	CDE / Illinois Capacitor	0.1 µF	400V	±10%	15.00mm	18.50	7.00	12.00	-55 to 125°C	Active	15726

Engineering Selection Recommendations

Direct Equivalent Selection (Preferred for Immediate Substitution)

The 160104K400G-F from Cornell Dubilier Electronics is the primary direct equivalent. It maintains identical electrical specifications (0.1 µF, 400V DC, ±10% tolerance) and standard lead spacing (15.00mm). The part differs only in physical dimensions with a reduced height (12.00mm vs. 13.00mm) and width (6.00mm vs. 6.50mm), and operates to 105°C instead of 125°C. This part is active in production with 3385 units in stock.

The B32522C6104K from EPCOS - TDK Electronics provides an alternative direct equivalent with identical electrical specifications and lead spacing. It features a more compact form factor (10.50mm height, 5.00mm width) and maintains full ROHS3 compliance. This part is active with 5086 units available.

The 104MSR400K from Cornell Dubilier / Illinois Capacitor is electrically equivalent with identical specifications and lead spacing. It provides the highest inventory availability (15726 units) and maintains the full operating temperature range (-55°C to 125°C).

Similar Part Selection (Requires PCB Layout Verification)

The DME4P1K-F from Cornell Dubilier Electronics shares identical electrical specifications but features a reduced lead spacing of 10.00mm (versus 15.00mm). This part is suitable only if the PCB layout accommodates the narrower lead spacing. The part is active with 2400 units in stock.

The DMT4P1K-F from Cornell Dubilier Electronics maintains electrical equivalence but features an expanded lead spacing of 18.60mm and larger physical dimensions. This part is suitable only if the PCB layout accommodates the wider spacing. The part is active with 2731 units in stock.

Upgrade Part Selection (Enhanced Performance Margins)

The DME6P1K-F from Cornell Dubilier Electronics provides a voltage upgrade to 630V DC while maintaining 0.1 µF capacitance and ±10% tolerance. This part is suitable for applications requiring higher voltage headroom. It maintains the standard 15.00mm lead spacing and full operating temperature range. This part has the highest inventory availability (32719 units).

The B32522Q8104K000 from EPCOS - TDK Electronics provides a 630V DC upgrade with ±10% tolerance and standard lead spacing. It is active in production with 4481 units available.

The B32522N6104J000 from EPCOS - TDK Electronics provides a 450V DC upgrade with ±5% tolerance (tighter than the original ±10%), standard lead spacing, and AEC-Q200 automotive qualification. This part is active with 4764 units in stock.

Parts Not Recommended for New Designs

The B32522C6104J000 from EPCOS - TDK Electronics carries a "Not For New Designs" product status designation. While electrically compatible (0.1 µF, 400V DC, ±5% tolerance), this part should not be selected for new circuit designs due to its obsolescence trajectory.

Frequently Asked Questions (FAQ)

Q: Can I substitute the DMM4P1K-F with the 160104K400G-F?

A: Yes. Both parts are 0.1 µF, 400V DC, ±10% tolerance film capacitors with 15.00mm lead spacing. The 160104K400G-F has slightly reduced physical dimensions and operates to 105°C instead of 125°C. Verify that your application does not require operation above 105°C.

Q: What is the difference between direct equivalents and upgrade parts?

A: Direct equivalents maintain the same voltage rating (400V DC) and tolerance (±10%) as the DMM4P1K-F. Upgrade parts exceed the voltage rating (630V DC or 450V DC) or improve tolerance (±5%), providing enhanced performance margins for applications with higher voltage requirements or tighter tolerance specifications.

Q: Can I use the DME4P1K-F as a substitute?

A: The DME4P1K-F is electrically equivalent but has a reduced lead spacing of 10.00mm instead of 15.00mm. Substitution requires verification that your PCB layout accommodates this narrower spacing. If your PCB is designed for 15.00mm spacing, this part will not fit.

Q: Why does the B32522C6104J000 show "Not For New Designs" status?

A: This designation indicates the part is in end-of-life phase and should not be selected for new circuit designs. While currently available in inventory, future availability is not guaranteed. Select active parts for new designs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the regulatory status of the DMM4P1K-F.

Q: What is the advantage of selecting the B32522N6104J000 upgrade part?

A: This part provides a 450V DC rating (50V higher than the original 400V) with tighter ±5% tolerance and AEC-Q200 automotive qualification. It is suitable for applications requiring enhanced voltage margin or automotive-grade reliability.

Q: Can I use the DMT4P1K-F in place of the DMM4P1K-F?

A: The DMT4P1K-F is electrically equivalent but features an expanded lead spacing of 18.60mm and larger physical dimensions. Substitution requires verification that your PCB layout accommodates this larger footprint. If your PCB is designed for the original 15.00mm spacing and compact form factor, this part will not fit.

Q: Which substitute part has the highest inventory availability?

A: The DME6P1K-F from Cornell Dubilier Electronics has the highest inventory with 32719 units in stock. This 630V DC upgrade part maintains the standard 15.00mm lead spacing and full operating temperature range.

Q: Are EPCOS - TDK parts compatible with Cornell Dubilier designs?

A: Yes. EPCOS - TDK parts listed as direct equivalents or upgrades maintain identical electrical specifications, lead spacing, and mounting configuration. They are mechanically and electrically compatible with Cornell Dubilier designs.

Q: What should I verify before substituting with a different lead spacing part?

A: Verify that your PCB layout accommodates the new lead spacing. The DME4P1K-F uses 10.00mm spacing (narrower), while the DMT4P1K-F uses 18.60mm spacing (wider). Mismatched spacing will result in component fit issues.

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