SXR472M025ST Equivalent & Substitute Parts Reference

Part Overview

The SXR472M025ST is a 4700 µF, 25 V aluminum electrolytic capacitor in radial can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as Obsolete, indicating it is no longer in active production. The SXR series represents legacy technology in general-purpose power supply and filtering applications.

Identifying equivalent and substitute parts is necessary due to the obsolete status of the SXR472M025ST. Active production alternatives with identical or superior electrical characteristics are available from multiple manufacturers, ensuring design continuity and supply chain reliability for applications requiring 4700 µF, 25 V aluminum electrolytic capacitors in radial through-hole configuration.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	4700	µF	Critical - must match exactly
Voltage Rating	25	V	Critical - minimum requirement
Tolerance	±20%	%	Critical - must match or be tighter
Package Type	Radial, Can	-	Critical - physical compatibility
Lead Spacing	7.50	mm	Critical - PCB footprint compatibility
Mounting Type	Through Hole	-	Critical - assembly method
Operating Temperature Range	-40°C to 105°C	-	Important - thermal compatibility
Polarization	Polar	-	Critical - polarity requirement
ESR @ 120 Hz	60	mOhm	Important - electrical performance
Lifetime @ 105°C	5000	Hrs	Important - reliability specification
Ripple Current @ 120 Hz	1.23	A	Important - thermal stress capability
RoHS Status	ROHS3 Compliant	-	Important - regulatory compliance

Substitute Part Grouping Explanation

Substitution of the SXR472M025ST is determined by strict adherence to the following critical parameters:

Critical Matching Parameters:

Capacitance: 4700 µF (exact match required)
Voltage Rating: 25 V minimum (equal or higher acceptable)
Tolerance: ±20% (equal or tighter acceptable)
Package: Radial, Can (exact match required)
Lead Spacing: 7.50 mm (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Secondary Compatibility Parameters:

Operating Temperature Range: -40°C to 105°C minimum (equal or wider acceptable)
ESR: Lower values indicate improved performance
Lifetime @ Temperature: Higher values indicate improved reliability
Ripple Current Capability: Higher values indicate greater thermal stress tolerance
RoHS Compliance: ROHS3 Compliant required for regulatory alignment

Substitute parts are grouped into three categories based on voltage rating and product status:

Direct Equivalents (25 V Rating): Parts with identical 25 V voltage rating and active or legacy production status
Upgrade Options (35 V Rating): Parts with higher voltage rating (35 V) suitable for applications where voltage headroom is beneficial
Performance Variants: Parts with improved electrical characteristics (lower ESR, higher ripple current, extended lifetime) within the same voltage class

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance (%)	ESR @ 120 Hz (mOhm)	Lifetime @ 105°C (Hrs)	Height (mm)	Product Status	RoHS Status
SXR472M025ST	Cornell Dubilier	4700	25	±20%	60	5000	40.00	Obsolete	ROHS3
478KBM025M	Cornell Dubilier / Illinois Capacitor	4700	25	±20%	78	10000	37.00	Active	ROHS3
EKYB250ELL472MM25S	Chemi-Con	4700	25	±20%	-	10000	26.50	Active	ROHS3
EKZN250ELL472MM25S	Chemi-Con	4700	25	±20%	-	10000	26.50	Active	ROHS3
UHE1E472MHD6	Nichicon	4700	25	±20%	-	10000	35.50	Not For New Designs	ROHS3
B41895A7478M000	EPCOS - TDK Electronics	4700	35	±20%	19	5000	40.00	Active	ROHS3
UPW1V472MHD	Nichicon	4700	35	±20%	-	8000	40.00	Not For New Designs	ROHS3

Engineering Selection Recommendations

For Direct Replacement (25 V Applications):

The 478KBM025M (Cornell Dubilier / Illinois Capacitor, KBM series) is the primary direct equivalent. This part maintains the 25 V voltage rating and ±20% tolerance of the SXR472M025ST while offering doubled lifetime (10,000 hours vs. 5,000 hours at 105°C) and active product status. The slightly reduced height (37.00 mm vs. 40.00 mm) provides improved PCB layout flexibility. This part is suitable for all applications previously using the SXR472M025ST.

The EKYB250ELL472MM25S and EKZN250ELL472MM25S (Chemi-Con, KYB and KZN series) are active production alternatives with 10,000-hour lifetime ratings and significantly reduced physical height (26.50 mm). These parts are recommended where PCB space constraints exist. Both maintain full electrical compatibility with the original specification.

The UHE1E472MHD6 (Nichicon, UHE series) is classified as "Not For New Designs" and should be avoided for new product development, though it remains available for legacy system support.

For Voltage-Upgraded Applications (35 V Tolerance Required):

The B41895A7478M000 (EPCOS - TDK Electronics, B41895 series) provides a 35 V rated alternative with superior ESR performance (19 mOhm @ 10 kHz) and AEC-Q200 automotive qualification. This part is suitable for applications where higher voltage margin is required or where automotive-grade reliability is specified. Physical dimensions match the original SXR472M025ST (40.00 mm height).

The UPW1V472MHD (Nichicon, UPW series) is classified as "Not For New Designs" and should be avoided for new product development.

Compliance Considerations:

All substitute parts listed maintain ROHS3 compliance, ensuring regulatory alignment with the original SXR472M025ST specification.

Frequently Asked Questions (FAQ)

Q: Can I use a 35 V rated capacitor in place of a 25 V rated capacitor?

A: Yes. A higher voltage rating provides additional safety margin and is electrically compatible. The 35 V alternatives (B41895A7478M000, UPW1V472MHD) can be used in any application designed for 25 V operation. However, physical dimensions must still be verified for PCB footprint compatibility.

Q: What is the difference between the Chemi-Con KYB and KZN series substitutes?

A: Both EKYB250ELL472MM25S (KYB) and EKZN250ELL472MM25S (KZN) are 4700 µF, 25 V direct equivalents with identical 10,000-hour lifetime and 26.50 mm height. The KZN series offers slightly higher ripple current capability (3.298 A @ 120 Hz vs. 3.0005 A @ 120 Hz) and lower impedance (16 mOhms vs. 17 mOhms), indicating marginally superior thermal performance. Both are suitable for direct substitution.

Q: Why is the SXR472M025ST obsolete?

A: The SXR series represents legacy aluminum electrolytic capacitor technology. Manufacturers have transitioned to improved formulations and manufacturing processes, resulting in active production alternatives with superior performance characteristics (lower ESR, extended lifetime, reduced physical size) at equivalent or lower cost.

Q: Are there physical dimension constraints I should consider?

A: Yes. The original SXR472M025ST has a height of 40.00 mm. The Chemi-Con alternatives (EKYB250ELL472MM25S, EKZN250ELL472MM25S) are significantly shorter at 26.50 mm, which may affect PCB layout if the original design relied on specific component height. The 478KBM025M (37.00 mm) and UHE1E472MHD6 (35.50 mm) offer intermediate heights. All maintain the identical 7.50 mm lead spacing and 18.00 mm diameter, ensuring footprint compatibility.

Q: What does "Not For New Designs" mean?

A: Parts designated "Not For New Designs" (UHE1E472MHD6, UPW1V472MHD) are available for legacy system support and repair but should not be specified in new product development. These parts may have limited future availability or represent transitional product lines. For new designs, select from parts with "Active" product status.

Q: Which substitute offers the best electrical performance?

A: The EKZN250ELL472MM25S (Chemi-Con, KZN series) offers the lowest impedance (16 mOhms) and highest ripple current capability (3.298 A @ 120 Hz, 3.88 A @ 100 kHz) among 25 V direct equivalents, indicating superior thermal stress tolerance and lower voltage drop under ripple current conditions. For automotive applications requiring enhanced reliability, the B41895A7478M000 (EPCOS - TDK, 35 V) provides AEC-Q200 qualification and exceptionally low ESR (19 mOhm @ 10 kHz).

Q: Is the lead spacing identical across all substitutes?

A: Yes. All substitute parts maintain the 7.50 mm lead spacing and 18.00 mm diameter of the original SXR472M025ST, ensuring direct PCB footprint compatibility without layout modification.

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