DMM1W4P7K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DMM1W4P7K-F is a 4.7 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 100V 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 currently active in production with 863 units in stock inventory.

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design requirements permit alternative configurations within specified electrical and mechanical parameters. The following parts maintain functional compatibility with the DMM1W4P7K-F based on matching capacitance, voltage rating, tolerance, dielectric material, and mounting characteristics.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Tolerance	±10%
Voltage Rating - DC	100V
Voltage Rating - AC	65V
Dielectric Material	Polyester, Metallized
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package / Case	Radial
Termination	PC Pins
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the DMM1W4P7K-F are classified based on electrical and mechanical compatibility within the following criteria:

Primary Substitution Criteria:

Capacitance value: 4.7 µF (exact match required)
Tolerance: ±10% (exact match required)
Voltage Rating - DC: 100V minimum (equal or higher acceptable)
Dielectric Material: Polyester, Metallized (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial (exact match required)
Termination: PC Pins (exact match required)
Operating Temperature Range: -55°C to 125°C (exact match required)

Substitute Categories:

Direct Equivalent (Same Series, Different Packaging): DME1W4P7K-F maintains identical electrical specifications and dielectric composition with dimensional variations in physical footprint and lead spacing.

Equivalent (Same Electrical Specifications, Different Manufacturer): 475MSR100K provides matching capacitance, tolerance, voltage rating, and dielectric material with minor dimensional differences within acceptable mechanical tolerances.

Upgrade Substitute (Higher Voltage Rating): B32524Q3475K000 exceeds the voltage rating specification (250V DC vs. 100V DC) while maintaining all other electrical parameters, enabling use in applications requiring higher voltage margin or operating in elevated voltage environments.

Parameter Comparison

Parameter	DMM1W4P7K-F (Main)	DME1W4P7K-F (Direct Equivalent)	475MSR100K (Equivalent)	B32524Q3475K000 (Upgrade)
Manufacturer	Cornell Dubilier Electronics (CDE)	Cornell Dubilier Electronics (CDE)	Cornell Dubilier / Illinois Capacitor	EPCOS - TDK Electronics
Series	DMM	DME	MSR	B3252* - MKT General Purpose
Capacitance	4.7 µF	4.7 µF	4.7 µF	4.7 µF
Tolerance	±10%	±10%	±10%	±10%
Voltage Rating - DC	100V	100V	100V	250V
Voltage Rating - AC	65V	65V	63V	160V
Dielectric Material	Polyester, Metallized	Polyester, Metallized	Polyester, Metallized	Polyester, Polyethylene Terephthalate (PET), Metallized
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial	Radial	Radial	Radial
Termination	PC Pins	PC Pins	PC Pins	PC Pins
Size / Dimension (L x W)	1.220" x 0.512" (31.00mm x 13.00mm)	1.024" x 0.315" (26.00mm x 8.00mm)	1.181" x 0.433" (30.00mm x 11.00mm)	1.240" x 0.433" (31.50mm x 11.00mm)
Height - Seated (Max)	0.906" (23.00mm)	0.728" (18.50mm)	0.807" (20.50mm)	0.827" (21.00mm)
Lead Spacing	1.083" (27.50mm)	0.886" (22.50mm)	1.083" (27.50mm)	1.083" (27.50mm)
Product Status	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Inventory (Pcs)	863	738	1479	2596

Engineering Selection Recommendations

DME1W4P7K-F (Direct Equivalent): This part is recommended as the primary substitute when DMM1W4P7K-F availability is constrained. Both components are manufactured by Cornell Dubilier Electronics and share identical electrical specifications, dielectric composition, and operating temperature range. The primary difference is physical footprint, with DME1W4P7K-F featuring a more compact radial package (26.00mm x 8.00mm vs. 31.00mm x 13.00mm) and reduced lead spacing (22.50mm vs. 27.50mm). PCB layout verification is required to confirm dimensional compatibility. Both parts maintain ROHS3 compliance and REACH unaffected status.

475MSR100K (Equivalent): This part provides functional equivalence with matching capacitance, tolerance, voltage rating, and dielectric material. Manufactured by Cornell Dubilier / Illinois Capacitor, the 475MSR100K operates within the same temperature range and maintains ROHS3 compliance. Physical dimensions are comparable to the main part (30.00mm x 11.00mm), with identical lead spacing (27.50mm). AC voltage rating is marginally lower (63V vs. 65V), which remains within acceptable operating parameters for general-purpose applications. This part is suitable for direct substitution in applications where physical footprint compatibility is prioritized.

B32524Q3475K000 (Upgrade Substitute): This part is classified as an upgrade substitute due to its elevated voltage rating (250V DC / 160V AC vs. 100V DC / 65V AC). Manufactured by EPCOS - TDK Electronics, the B32524Q3475K000 maintains all other electrical specifications including capacitance, tolerance, dielectric material, and operating temperature range. The component carries AEC-Q200 automotive qualification and is suitable for applications requiring higher voltage margin or automotive-grade reliability. Physical dimensions are comparable (31.50mm x 11.00mm) with matching lead spacing (27.50mm). This part is appropriate for designs where voltage derating or automotive compliance is required.

All substitute parts are active in production, ROHS3 compliant, and REACH unaffected, ensuring regulatory compliance and long-term availability.

Frequently Asked Questions (FAQ)

Q: Can DME1W4P7K-F be used as a direct replacement for DMM1W4P7K-F?

A: DME1W4P7K-F is electrically equivalent with identical capacitance (4.7 µF), tolerance (±10%), voltage rating (100V DC / 65V AC), dielectric material (polyester metallized), and operating temperature range (-55°C to 125°C). However, physical dimensions differ: DME1W4P7K-F measures 26.00mm x 8.00mm with 22.50mm lead spacing, compared to DMM1W4P7K-F at 31.00mm x 13.00mm with 27.50mm lead spacing. PCB layout verification is required to confirm footprint compatibility before substitution.

Q: What are the key differences between 475MSR100K and DMM1W4P7K-F?

A: Both parts share identical capacitance (4.7 µF), tolerance (±10%), voltage rating (100V DC), dielectric material (polyester metallized), and operating temperature range (-55°C to 125°C). The 475MSR100K has a slightly lower AC voltage rating (63V vs. 65V), which is operationally acceptable for general-purpose applications. Physical dimensions are comparable: 475MSR100K measures 30.00mm x 11.00mm with 27.50mm lead spacing, versus DMM1W4P7K-F at 31.00mm x 13.00mm with 27.50mm lead spacing. Lead spacing is identical, simplifying PCB compatibility assessment.

Q: When should B32524Q3475K000 be selected over the main part?

A: B32524Q3475K000 is selected when applications require higher voltage margin or automotive-grade reliability. This part provides 250V DC / 160V AC rating compared to 100V DC / 65V AC for DMM1W4P7K-F, while maintaining all other electrical specifications. The B32524Q3475K000 carries AEC-Q200 automotive qualification, making it suitable for automotive applications or designs requiring enhanced voltage derating. Physical dimensions are comparable with identical lead spacing (27.50mm), supporting direct PCB substitution.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All substitute parts listed—DME1W4P7K-F, 475MSR100K, and B32524Q3475K000—are ROHS3 compliant and REACH unaffected, matching the regulatory status of the main part DMM1W4P7K-F. This ensures compliance with environmental and hazardous substance regulations across all substitution options.

Q: What is the impact of lead spacing differences on PCB design?

A: Lead spacing differences directly affect PCB pad layout and component placement. DMM1W4P7K-F and 475MSR100K both use 27.50mm lead spacing, allowing direct footprint compatibility. DME1W4P7K-F uses 22.50mm lead spacing, requiring PCB layout modification. B32524Q3475K000 uses 27.50mm lead spacing, matching the main part. Lead spacing verification against PCB design files is mandatory before component substitution to prevent assembly errors.

Q: Which substitute part offers the highest inventory availability?

A: B32524Q3475K000 has the highest inventory level with 2596 units in stock, followed by 475MSR100K with 1479 units, DME1W4P7K-F with 738 units, and DMM1W4P7K-F with 863 units. Inventory levels should be considered in supply chain planning when component availability is time-critical.

Q: Can DMM1W4P7K-F be used in automotive applications?

A: DMM1W4P7K-F is rated for general-purpose applications and does not carry automotive qualification. For automotive applications requiring AEC-Q200 compliance, B32524Q3475K000 is the appropriate selection, as it maintains equivalent electrical specifications while providing automotive-grade reliability certification.

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