ESMG250ELL331MHB5D Equivalent & Substitute Parts

Part Overview

The ESMG250ELL331MHB5D is a 330 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Chemi-Con. This component is rated for 2000 hours at 85°C and is classified as Active product status. The SMG series capacitor is designed for general-purpose applications requiring through-hole mounting with radial lead configuration.

Substitute parts are necessary when the original component reaches end-of-life status, when inventory becomes constrained, or when design requirements call for enhanced performance characteristics such as extended operational lifetime or improved ripple current handling capabilities.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	25 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Lead Spacing	0.138" (3.50 mm)
Case Diameter	0.315" (8.00 mm)
Height (Seated Max)	0.512" (13.00 mm)
Mounting Type	Through Hole
Operating Temperature Range	-40°C ~ 85°C
Lifetime Rating	2000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the ESMG250ELL331MHB5D is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 25 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.138" (3.50 mm) (exact match required)
Case Diameter: 0.315" (8.00 mm) (exact match required)
Height (Seated Max): 0.512" (13.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Performance Enhancement Parameters (Allowable Variations):

Operating Temperature Range: May extend beyond -40°C ~ 85°C
Lifetime @ Temperature: May exceed 2000 Hrs @ 85°C
Ripple Current Ratings: May exceed specified values
Impedance: May vary based on series design

All substitute parts listed maintain identical mechanical and electrical core specifications while offering equal or superior performance characteristics in lifetime and thermal operating range.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Case Diameter	Height (Max)	Product Status	RoHS Status
ESMG250ELL331MHB5D	Chemi-Con	SMG	330 µF	25 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.138" (3.50 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	Active	ROHS3 Compliant
EKYB250ELL331MHB5D	Chemi-Con	KYB	330 µF	25 V	±20%	7000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (3.50 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	Active	ROHS3 Compliant
EKZM250ELL331MHB5D	Chemi-Con	KZM	330 µF	25 V	±20%	8000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (3.50 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	Active	ROHS3 Compliant
25ZLJ330M8X11.5	Rubycon	ZLJ	330 µF	25 V	±20%	9000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (3.50 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	Active	ROHS3 Compliant
25ZLQ330MEFC8X11.5	Rubycon	ZLQ	330 µF	25 V	±20%	4000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (3.50 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	Active	ROHS3 Compliant
EEU-FR1E331	Panasonic Electronic Components	FR-A	330 µF	25 V	±20%	6000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (3.50 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	Active	ROHS3 Compliant
UHV1E331MPD	Nichicon	UHV	330 µF	25 V	±20%	6000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (3.50 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	Not For New Designs	ROHS3 Compliant
25YXG330MEFC8X11.5	Rubycon	YXG	330 µF	25 V	±20%	4000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (3.50 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	Not For New Designs	ROHS3 Compliant
25YXJ330M8X11.5	Rubycon	YXJ	330 µF	25 V	±20%	7000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (3.50 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	Active	ROHS3 Compliant
25ZLH330MEFC8X11.5	Rubycon	ZLH	330 µF	25 V	±20%	8000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (3.50 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	Active	ROHS3 Compliant
25ZLS330MEFC8X11.5	Rubycon	ZLS	330 µF	25 V	±20%	6000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (3.50 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Active Status, Recommended for New Designs):

The following parts are suitable for direct substitution and are recommended for new designs:

EKYB250ELL331MHB5D (Chemi-Con KYB series): Offers 7000 hours lifetime at 105°C with extended operating temperature range to 105°C. Maintains identical mechanical footprint and electrical specifications.
EKZM250ELL331MHB5D (Chemi-Con KZM series): Provides 8000 hours lifetime at 105°C with superior ripple current handling (945 mA @ 100 kHz) and lower impedance (56 mOhms). Identical mechanical compatibility.
25ZLJ330M8X11.5 (Rubycon ZLJ series): Delivers highest lifetime rating of 9000 hours at 105°C with maximum ripple current capacity (1.2 A @ 100 kHz). Fully compatible mechanical and electrical specifications.
EEU-FR1E331 (Panasonic FR-A series): Provides 6000 hours lifetime at 105°C with high ripple current performance (950 mA @ 100 kHz). Maintains full mechanical compatibility.
25YXJ330M8X11.5 (Rubycon YXJ series): Offers 7000 hours lifetime at 105°C with Active product status. Suitable for applications requiring extended thermal performance.
25ZLH330MEFC8X11.5 (Rubycon ZLH series): Delivers 8000 hours lifetime at 105°C with robust ripple current handling (945 mA @ 100 kHz). Maintains identical footprint.
25ZLS330MEFC8X11.5 (Rubycon ZLS series): Provides 6000 hours lifetime at 105°C with reliable performance characteristics. Active product status ensures continued availability.

Secondary Substitutes (Not For New Designs):

UHV1E331MPD (Nichicon UHV series): Classified as Not For New Designs. Provides 6000 hours lifetime at 105°C. Suitable only for legacy system maintenance or replacement applications.
25YXG330MEFC8X11.5 (Rubycon YXG series): Classified as Not For New Designs. Offers 4000 hours lifetime at 105°C. Appropriate only for existing equipment servicing.

All substitute parts maintain ROHS3 compliance and are mechanically interchangeable with the original ESMG250ELL331MHB5D component.

Frequently Asked Questions (FAQ)

Q: Can EKYB250ELL331MHB5D be used as a direct replacement for ESMG250ELL331MHB5D?

A: Yes. Both components share identical capacitance (330 µF), voltage rating (25 V), tolerance (±20%), lead spacing (0.138" / 3.50 mm), case diameter (0.315" / 8.00 mm), and height (0.512" / 13.00 mm). The EKYB series offers extended lifetime (7000 hours at 105°C) and expanded operating temperature range (-40°C to 105°C) compared to the original SMG series (2000 hours at 85°C, -40°C to 85°C). Mechanical and electrical compatibility is complete.

Q: What is the primary difference between the Chemi-Con KYB, KZM series and the Rubycon ZLJ, ZLH series?

A: All four series maintain identical mechanical specifications and core electrical parameters (330 µF, 25 V, ±20%). The primary differences are manufacturer-specific design characteristics reflected in lifetime ratings and ripple current performance. The Rubycon ZLJ series provides the highest lifetime rating (9000 hours at 105°C), while the Chemi-Con KZM series offers 8000 hours at 105°C. Selection depends on application requirements for thermal performance and ripple current handling.

Q: Are parts marked "Not For New Designs" suitable for replacement applications?

A: Parts designated as "Not For New Designs" (UHV1E331MPD and 25YXG330MEFC8X11.5) are suitable for replacement in existing equipment where the original component has failed or reached end-of-life. These parts maintain full electrical and mechanical compatibility. However, for new circuit designs, Active status parts are recommended to ensure long-term availability and support.

Q: What is the significance of the operating temperature range difference between ESMG250ELL331MHB5D and substitute parts?

A: The original ESMG250ELL331MHB5D operates from -40°C to 85°C with a 2000-hour lifetime at 85°C. Most substitute parts extend the upper operating limit to 105°C with significantly extended lifetimes (4000 to 9000 hours at 105°C). This allows the substitute components to function reliably in higher-temperature environments and provides greater margin for thermal stress in existing applications.

Q: Do all substitute parts have identical ripple current ratings?

A: No. Ripple current ratings vary across substitute series. The original ESMG250ELL331MHB5D is rated for 440 mA @ 120 Hz and 660 mA @ 100 kHz. Substitute parts range from 420 mA to 665 mA @ 120 Hz and 840 mA to 1.2 A @ 100 kHz. Higher ripple current ratings indicate improved performance in high-frequency filtering applications. Selection should consider the specific ripple current requirements of the target application.

Q: Is the mechanical footprint identical across all listed substitute parts?

A: Yes. All substitute parts maintain identical mechanical specifications: lead spacing of 0.138" (3.50 mm), case diameter of 0.315" (8.00 mm), and seated height of 0.512" (13.00 mm). All components are through-hole mounted in radial, can package configuration. Direct mechanical substitution is possible without PCB redesign.

Q: What does impedance variation indicate among substitute parts?

A: Impedance values range from 49 mOhms to 130 mOhms across the substitute series. Lower impedance values (49-75 mOhms) indicate superior high-frequency performance and reduced voltage ripple. Higher impedance values (130 mOhms) may indicate different internal construction. For applications sensitive to impedance characteristics, the specific impedance value should be verified against circuit requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the original ESMG250ELL331MHB5D. This ensures compatibility with RoHS-regulated applications and markets.

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