475CKS450MLN Equivalent & Substitute Parts

Part Overview

The 475CKS450MLN is a 4.7 µF, 450 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is rated for 2000 hours at 85°C with an equivalent series resistance of 70.547 Ohm @ 120 Hz and is classified as Active product status. Alternative models become necessary when design requirements demand extended temperature ratings, improved ripple current handling, or when primary inventory is unavailable. The substitute parts listed maintain critical electrical parameters while offering variations in thermal performance and operational characteristics.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Tolerance	±20%
Voltage - Rated	450 V
ESR (Equivalent Series Resistance)	70.547 Ohm @ 120 Hz
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-25°C ~ 85°C
Polarization	Polar
Lead Spacing	0.197" (5.00 mm)
Size / Dimension	0.394" Dia (10.00 mm)
Height - Seated (Max)	0.551" (14.00 mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitutability for the 475CKS450MLN is determined by strict adherence to the following electrical and mechanical parameters:

Mandatory Compatibility Criteria:

Capacitance: 4.7 µF (no deviation permitted)
Tolerance: ±20%
Voltage - Rated: 450 V (minimum requirement)
Polarization: Polar
Mounting Type: Through Hole
Lead Spacing: 0.197" (5.00 mm)
Size / Dimension: 0.394" Dia (10.00 mm)
Package / Case: Radial, Can

Performance Variations Allowed in Substitutes: Substitute parts may differ in lifetime temperature rating (85°C vs. 105°C), operating temperature range, ripple current capability, and ESR specifications, provided all mandatory criteria are met.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Tolerance	Voltage	ESR @ 120Hz	Lifetime @ Temp	Operating Temp Range	Ripple Current @ 120Hz	Product Status
475CKS450MLN	Cornell Dubilier / Illinois Capacitor	CKS	4.7 µF	±20%	450 V	70.547 Ohm	2000 Hrs @ 85°C	-25°C ~ 85°C	70 mA	Active
475CKE450MLN	Cornell Dubilier / Illinois Capacitor	CKE	4.7 µF	±20%	450 V	70.547 Ohm	2000 Hrs @ 105°C	-25°C ~ 105°C	32 mA	Active
450PK4R7MEFC10X12.5	Rubycon	PK	4.7 µF	±20%	450 V	—	2000 Hrs @ 85°C	-25°C ~ 85°C	46 mA	Active
450PX4.7MEFC10X12.5	Rubycon	PX	4.7 µF	±20%	450 V	—	2000 Hrs @ 105°C	-25°C ~ 105°C	35 mA	Active
EKMQ451ELL4R7MJC5S	Chemi-Con	KMQ	4.7 µF	±20%	450 V	—	2000 Hrs @ 105°C	-25°C ~ 105°C	32 mA	Active
450PK4.7MEFC10X12.5	Rubycon	PK	4.7 µF	±20%	450 V	—	2000 Hrs @ 85°C	-25°C ~ 85°C	46 mA	Active
UVK2W4R7MPD	Nichicon	UVK	4.7 µF	±20%	450 V	—	2000 Hrs @ 85°C	-25°C ~ 85°C	46 mA	Not For New Designs

Engineering Selection Recommendations

475CKE450MLN (Cornell Dubilier / Illinois Capacitor, CKE Series): Direct manufacturer equivalent offering extended thermal performance with 2000 hours lifetime at 105°C versus the base 85°C rating. Active product status with full RoHS3 compliance. Suitable for applications requiring elevated temperature operation within the same form factor.

450PX4.7MEFC10X12.5 (Rubycon, PX Series): Upgrade substitute providing 105°C thermal rating with Active product status and ROHS3 compliance. Maintains identical physical footprint and electrical specifications while improving long-term reliability in high-temperature environments.

EKMQ451ELL4R7MJC5S (Chemi-Con, KMQ Series): Upgrade substitute rated for 2000 hours at 105°C with Active product status and RoHS3 compliance. Provides alternate sourcing from a major manufacturer with equivalent thermal and mechanical characteristics.

450PK4R7MEFC10X12.5 and 450PK4.7MEFC10X12.5 (Rubycon, PK Series): Parametric equivalents maintaining 85°C thermal rating with Active product status. Suitable for direct replacement where thermal performance at 85°C is sufficient. Both variants are ROHS3 compliant.

UVK2W4R7MPD (Nichicon, UVK Series): Parametric equivalent with matching 85°C thermal rating. Marked as "Not For New Designs," this part is available for legacy circuit support and repair applications only. Not recommended for new product designs.

Frequently Asked Questions (FAQ)

Q: Can I use 475CKE450MLN as a direct drop-in replacement for 475CKS450MLN? A: Yes. Both parts are manufactured by Cornell Dubilier / Illinois Capacitor with identical electrical parameters (4.7 µF, 450 V, ±20% tolerance) and physical dimensions. The CKE variant offers extended temperature rating to 105°C versus 85°C.

Q: What are the mechanical considerations when substituting these parts? A: All substitute parts maintain the mandatory specifications: 0.197" (5.00 mm) lead spacing, 0.394" Dia (10.00 mm) body diameter, and 0.551" (14.00 mm) maximum seated height. Physical footprint compatibility is assured across all listed substitutes.

Q: Which substitute offers the best performance in high-temperature applications? A: The 450PX4.7MEFC10X12.5 (Rubycon PX Series), EKMQ451ELL4R7MJC5S (Chemi-Con KMQ Series), and 475CKE450MLN (Cornell Dubilier CKE Series) all provide 2000-hour lifetime rating at 105°C and operating temperature range to 105°C. Selection should be based on availability and sourcing requirements.

Q: Is UVK2W4R7MPD suitable for new designs? A: No. The UVK2W4R7MPD is marked "Not For New Designs." This part is available for legacy system support and repair applications only. Use active-status alternatives for new product development.

Q: How do ripple current specifications differ among substitutes? A: Ripple current at 120 Hz varies by manufacturer and thermal rating: 70 mA (475CKS450MLN), 32 mA (475CKE450MLN), 46 mA (450PK4R7MEFC10X12.5, 450PK4.7MEFC10X12.5, UVK2W4R7MPD), and 35 mA (450PX4.7MEFC10X12.5, EKMQ451ELL4R7MJC5S). Circuit design must accommodate the ripple current characteristics of the selected substitute.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory compliance of the primary 475CKS450MLN specification.

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