SXR471M025ST Equivalent & Substitute Parts Reference

Part Overview

The SXR471M025ST is a 470 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, with a rated lifetime of 4000 hours at 105°C and an equivalent series resistance (ESR) of 400 mOhm at 120 Hz. The part is designed for general-purpose applications requiring through-hole mounting with 5.00 mm lead spacing and 10.00 mm diameter form factor.

Due to obsolete product status, equivalent and substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability. Substitute parts must maintain electrical compatibility across capacitance, voltage rating, polarization, and mechanical dimensions while meeting modern compliance standards.

Key Parameters

Parameter	Value	Unit	Substitution Criticality
Capacitance	470	µF	Critical
Tolerance	±20%	%	Critical
Voltage - Rated	25	V	Critical
Operating Temperature Range	-40 to 105	°C	Critical
Polarization	Polar	—	Critical
Lead Spacing	5.00	mm	Critical
Size / Diameter	10.00	mm	Critical
Mounting Type	Through Hole	—	Critical
Package / Case	Radial, Can	—	Critical
Lifetime @ 105°C	4000	Hours	Important
ESR @ 120 Hz	400	mOhm	Important
RoHS Status	ROHS3 Compliant	—	Important

Substitute Part Grouping Explanation

Substitution logic for the SXR471M025ST is based on strict electrical and mechanical parameter matching. All substitute parts must satisfy the following criteria:

Critical Matching Parameters:

Capacitance: 470 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 25 V minimum (equal or higher voltage acceptable)
Polarization: Polar (electrolytic, same polarity orientation)
Lead Spacing: 5.00 mm (exact match required for PCB compatibility)
Diameter: 10.00 mm (exact match required for mechanical fit)
Mounting Type: Through Hole (radial leads)
Package: Radial, Can (same form factor)
Operating Temperature: -40°C to 105°C minimum (same or wider range acceptable)

Secondary Compatibility Parameters:

RoHS3 Compliance (all substitutes must meet this standard)
ESR and impedance values (lower values indicate improved performance)
Lifetime at 105°C (equal or longer lifetime acceptable)
Ripple current ratings (equal or higher ratings acceptable)

Substitute parts are grouped into two categories: Direct Equivalents (25 V rated voltage, matching the original specification) and Upgrade Options (35 V rated voltage, providing higher voltage margin while maintaining all other critical parameters).

Parameter Comparison

Manufacturer	Part Number	Capacitance (µF)	Voltage (V)	Tolerance (%)	Lifetime @ 105°C (Hrs)	Height (mm)	Impedance (mOhms)	Product Status
Cornell Dubilier	SXR471M025ST	470	25	±20	4000	20.00	—	Obsolete
Rubycon	25YXJ470M10X12.5	470	25	±20	10000	14.00	80	Active
Rubycon	25YXJ470MCE10X12.5	470	25	±20	10000	14.00	80	Active
Panasonic	EEU-FM1E471	470	25	±20	4000	17.50	26	Active
Panasonic	EEU-FM1E471B	470	25	±20	4000	17.50	26	Active
Chemi-Con	EKYA250ELL471MJC5S	470	25	±20	7000	14.00	80	Active
Chemi-Con	EKZE250ELL471MJ16S	470	25	±20	4000	17.50	38	Active
Nichicon	UHD1E471MPD6	470	25	±20	4000	16.00	38	Not For New Designs
Nichicon	UPJ1E471MPD	470	25	±20	5000	20.00	100	Not For New Designs
Panasonic	EEU-EB1V471	470	35	±20	10000	22.00	—	Active
Nichicon	UHE1V471MPD	470	35	±20	7000	20.00	46	Not For New Designs

Engineering Selection Recommendations

Direct Equivalent Selection (25 V Rated Voltage):

For applications requiring exact voltage specification match and active product status, the following parts are recommended:

Panasonic EEU-FM1E471 / EEU-FM1E471B — Active product status with 4000-hour lifetime matching the original SXR471M025ST specification. Lowest impedance (26 mOhms) among direct equivalents, providing superior high-frequency performance. Available in both bulk and cut-tape packaging. ROHS3 compliant with REACH unaffected status.

Rubycon 25YXJ470MCE10X12.5 — Active product with extended 10000-hour lifetime at 105°C. Compact height (14.00 mm) reduces PCB footprint. Impedance of 80 mOhms is acceptable for general-purpose applications. ROHS3 compliant with REACH unaffected status. Highest inventory availability (817 pcs).

Chemi-Con EKZE250ELL471MJ16S — Active product with 4000-hour lifetime. Impedance of 38 mOhms provides mid-range performance. Largest inventory stock (61340 pcs) ensures supply continuity. ROHS3 compliant with REACH unaffected status.

Upgrade Selection (35 V Rated Voltage):

For applications where higher voltage margin is beneficial:

Panasonic EEU-EB1V471 — Active product with extended 10000-hour lifetime and 35 V rating. Provides voltage headroom for transient protection. ROHS3 compliant with REACH unaffected status.

Parts Not Recommended for New Designs:

Nichicon UHD1E471MPD6, UHE1V471MPD, and UPJ1E471MPD carry "Not For New Designs" status. While electrically compatible, these parts should be reserved for legacy system maintenance only.

Frequently Asked Questions (FAQ)

Q: Can I use a 35 V rated capacitor (EEU-EB1V471 or UHE1V471MPD) as a direct replacement for the 25 V SXR471M025ST?

A: Yes. Higher voltage-rated capacitors are electrically compatible in circuits designed for lower voltages. The 35 V parts provide additional voltage margin and are suitable for direct substitution. All other critical parameters (capacitance, tolerance, polarization, lead spacing, diameter, mounting type) remain identical.

Q: What is the significance of impedance (Z) values in the parameter comparison table?

A: Impedance indicates the capacitor's resistance to AC current at specific frequencies. Lower impedance values (26 mOhms for Panasonic EEU-FM series) indicate better high-frequency performance and lower voltage ripple. Higher impedance values (100 mOhms for Nichicon UPJ1E471MPD) are acceptable for general-purpose applications but may result in higher ripple voltage in high-frequency circuits.

Q: Why do some substitute parts have different heights (14.00 mm vs. 20.00 mm)?

A: Height variation is permitted within the substitution criteria because the critical mechanical parameter is the 10.00 mm diameter and 5.00 mm lead spacing, which determine PCB hole alignment. Shorter heights (14.00 mm) reduce vertical PCB clearance requirements. Taller heights (20.00 mm) match the original SXR471M025ST dimension. Verify PCB clearance before selecting parts with different heights.

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

A: This designation indicates the manufacturer has discontinued active support for the part. While existing inventory may be available and the part remains electrically functional, manufacturers do not recommend these parts for new circuit designs. Use these parts only for legacy system repairs or maintenance where exact compatibility is required.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference meet ROHS3 compliance requirements. The original SXR471M025ST is also ROHS3 compliant. This ensures compatibility with modern manufacturing and environmental regulations.

Q: What is the difference between bulk and cut-tape packaging?

A: Bulk packaging is suitable for manual assembly or small-quantity applications. Cut-tape (CT) packaging is formatted for automated pick-and-place equipment used in high-volume manufacturing. Both packaging formats contain identical components; the difference is in presentation and handling method.

Q: Can I substitute UPJ1E471MPD if the operating temperature range must extend to -55°C?

A: Yes. The UPJ1E471MPD specifies an operating temperature range of -55°C to 105°C, which exceeds the original -40°C to 105°C specification. This part is suitable for applications requiring extended low-temperature operation. However, note its "Not For New Designs" status and higher impedance (100 mOhms).

Q: Which substitute part offers the longest lifetime at 105°C?

A: The Rubycon 25YXJ470MCE10X12.5 and Panasonic EEU-EB1V471 both offer 10000-hour lifetime at 105°C, compared to the original 4000-hour specification. These parts provide extended service life for reliability-critical applications.

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