SXR331M025ST Equivalent & Substitute Parts Reference

Part Overview

The SXR331M025ST is a 330 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, with 760 pieces currently in stock. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 4000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and low equivalent series resistance.

Due to the obsolete status of the SXR331M025ST, equivalent and substitute parts from active manufacturers are necessary to ensure long-term component availability, supply chain continuity, and design flexibility for new production runs or field replacements.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	330	µF	Critical - must match exactly
Voltage Rating	25	V	Critical - minimum requirement
Tolerance	±20%	%	Critical - must match or be tighter
Operating Temperature Range	-40 to 105	°C	Critical - must encompass or exceed
Lifetime @ 105°C	4000	Hours	Important - affects reliability
Lead Spacing	5.00	mm	Critical - PCB layout compatibility
Package Type	Radial, Can	-	Critical - mechanical fit
Mounting Type	Through Hole	-	Critical - assembly process
Polarization	Polar	-	Critical - circuit function
RoHS Status	ROHS3 Compliant	-	Important - regulatory compliance

Substitute Part Grouping Explanation

Substitute parts for the SXR331M025ST are categorized into two groups based on electrical and mechanical compatibility:

Direct Equivalents (Same Voltage Rating - 25V): Parts that maintain identical capacitance (330 µF), voltage rating (25 V), tolerance (±20%), lead spacing (5.00 mm), package type (Radial, Can), and mounting method (Through Hole). These parts are interchangeable at the circuit level and require no design modification. Variations in height, ESR, ripple current capability, and lifetime do not affect basic substitutability but may influence performance characteristics.

Voltage Upgrades (35V Rating): Parts rated at 35 V with the same capacitance, tolerance, lead spacing, and package type. These parts are electrically compatible in circuits designed for 25 V operation, as they provide higher voltage margin and typically improved reliability. Height and performance characteristics may differ.

All substitute parts listed are ROHS3 compliant and maintain through-hole radial can packaging with 0.197" (5.00 mm) lead spacing, ensuring mechanical and electrical compatibility with the original SXR331M025ST footprint.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance	Lifetime @ 105°C (Hrs)	Height Max (mm)	Product Status	Inventory (Pcs)
SXR331M025ST	Cornell Dubilier Electronics	330	25	±20%	4000	16.00	Obsolete	760
EEU-FM1E331	Panasonic Electronic Components	330	25	±20%	4000	14.00	Active	7603
EEU-FM1E331B	Panasonic Electronic Components	330	25	±20%	4000	14.00	Active	8009
EKY-250ELL331MJC5S	Chemi-Con	330	25	±20%	7000	14.00	Active	12719
EKZE250ELL331MJC5S	Chemi-Con	330	25	±20%	4000	14.00	Active	4157
UHE1E331MPD6	Nichicon	330	25	±20%	7000	12.50	Not For New Designs	25758
UPJ1E331MPD6	Nichicon	330	25	±20%	5000	16.50	Not For New Designs	2829
EEU-EB1V331	Panasonic Electronic Components	330	35	±20%	10000	17.00	Active	3163
EKZE350ELL331MJ16S	Chemi-Con	330	35	±20%	4000	17.50	Active	10002
UHE1V331MPD	Nichicon	330	35	±20%	7000	16.00	Not For New Designs	1091
UPW1V331MPD	Nichicon	330	35	±20%	5000	16.00	Not For New Designs	1000400

Engineering Selection Recommendations

For Direct Replacement (25V Rating):

Select from active-status parts: EEU-FM1E331, EEU-FM1E331B, EKY-250ELL331MJC5S, or EKZE250ELL331MJC5S. These parts maintain the 25 V voltage rating and are manufactured by active product lines from Panasonic Electronic Components and Chemi-Con. All are ROHS3 compliant and available in high inventory quantities. The Panasonic FM-A series (EEU-FM1E331, EEU-FM1E331B) offers the lowest profile at 14.00 mm height, suitable for space-constrained applications. The Chemi-Con KY series (EKY-250ELL331MJC5S) provides extended lifetime of 7000 hours at 105°C.

Parts with "Not For New Designs" status (UHE1E331MPD6, UPJ1E331MPD6) are suitable for field replacement and legacy system maintenance but should not be selected for new product designs.

For Voltage Upgrade (35V Rating):

Select from active-status parts: EEU-EB1V331 or EKZE350ELL331MJ16S. These parts provide higher voltage margin and improved reliability characteristics. The Panasonic EB-A series (EEU-EB1V331) offers the longest lifetime at 10000 hours at 105°C. Both parts are ROHS3 compliant and available in substantial inventory. Height increases to 17.00-17.50 mm must be verified against PCB layout constraints.

All recommended parts maintain the critical parameters: 330 µF capacitance, ±20% tolerance, 5.00 mm lead spacing, radial can package, through-hole mounting, and polar configuration.

Frequently Asked Questions (FAQ)

Q: Can EEU-FM1E331 directly replace SXR331M025ST without PCB modification?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (25 V), tolerance (±20%), lead spacing (5.00 mm), package type (radial can), and mounting method (through-hole). The EEU-FM1E331 height of 14.00 mm is lower than the original 16.00 mm, which provides additional PCB clearance. No circuit modification is required.

Q: What is the difference between EEU-FM1E331 and EEU-FM1E331B?

A: Both parts are electrically and mechanically identical. The primary difference is packaging: EEU-FM1E331 is supplied in bulk, while EEU-FM1E331B is supplied in cut tape (CT). Selection depends on assembly process requirements. Electrical performance and physical dimensions are equivalent.

Q: Why do some substitute parts have different heights?

A: Height variation reflects different internal construction and performance characteristics among manufacturers. All listed parts maintain the same lead spacing (5.00 mm) and radial can package type, ensuring PCB footprint compatibility. Height differences do not affect electrical substitutability but must be verified against available PCB clearance in the application.

Q: Can 35V-rated parts (EEU-EB1V331, EKZE350ELL331MJ16S) be used in a 25V circuit?

A: Yes. Higher voltage-rated capacitors are electrically compatible in lower-voltage circuits. The 35V parts provide additional voltage margin and typically offer improved reliability and longer operational lifetime. No circuit modification is required. This is a conservative design choice suitable for applications requiring enhanced reliability.

Q: What does "Not For New Designs" status mean for UHE1E331MPD6 and UPJ1E331MPD6?

A: This status indicates the manufacturer has discontinued these parts for new product development but continues to support existing applications. These parts are suitable for field replacement, legacy system maintenance, and repair of existing equipment. For new product designs, select from active-status alternatives: Panasonic FM-A series or Chemi-Con KY/KZE series.

Q: Which substitute part offers the longest operational lifetime?

A: EEU-EB1V331 (Panasonic EB-A series, 35V rating) provides 10000 hours at 105°C, the longest among all listed parts. For 25V applications, EKY-250ELL331MJC5S (Chemi-Con KY series) offers 7000 hours at 105°C.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

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