SMG25VB331M8X11LL Equivalent & Substitute Parts

Part Overview

The SMG25VB331M8X11LL is a 330 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Chemi-Con. This component is classified as obsolete, indicating that direct procurement from the original manufacturer may be limited or unavailable. The part is designed for general-purpose applications requiring through-hole mounting with specific electrical and mechanical characteristics suited to legacy circuit designs.

Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure circuit functionality, and secure component availability for production, repair, and maintenance activities.

Substiute Parts

SMG25VB331M8X11LL

Chemi-ConIn Stock: 782SMG25VB331M8X11LL Datasheet

Current PartRFQ

ESMG250ELL331MHB5D

Chemi-ConIn Stock: 792ESMG250ELL331MHB5D Datasheet

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ECA-1EM331

Panasonic Electronic ComponentsIn Stock: 2572ECA-1EM331 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMG25VB331M8X11LL is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: 25 V (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Lifetime: 2000 Hrs @ 85°C (exact match required)
• Polarization: Polar (exact match required)

Mechanical Parameters:

• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can (exact match required)
• Lead Spacing: 0.138" (3.50mm) (exact match required)
• Diameter: 0.315" (8.00mm) (exact match required)

Acceptable Variations:

• Height - Seated (Max): Substitute parts may exceed the original height within physical space constraints of the application
• ESR (Equivalent Series Resistance): Variations are acceptable provided electrical performance requirements are met
• Ripple Current specifications: Minor variations are acceptable within application requirements

Substitute parts must maintain identical electrical ratings and mechanical footprint compatibility to ensure direct replacement without circuit redesign or PCB modification.

Parameter Comparison

Engineering Selection Recommendations

ESMG250ELL331MHB5D (Chemi-Con)

This substitute part is manufactured by the same original equipment manufacturer as the SMG25VB331M8X11LL. It maintains identical electrical specifications and mechanical footprint compatibility. The part is currently in active production status, ensuring reliable availability. ESMG250ELL331MHB5D is ROHS3 compliant, meeting modern environmental and regulatory standards. The increased height of 0.512" (13.00mm) compared to the original 0.453" (11.50mm) requires verification of available vertical clearance in the target application. This part is suitable for direct replacement in applications where the additional height does not present physical constraints.

ECA-1EM331 (Panasonic Electronic Components)

This substitute part is manufactured by Panasonic Electronic Components and is currently in active production. It meets all critical electrical parameters and maintains mechanical footprint compatibility with identical lead spacing and diameter. ECA-1EM331 is ROHS3 compliant. The height of 0.492" (12.50mm) is intermediate between the original and the Chemi-Con substitute. The ripple current at 120 Hz is specified at 390 mA, which is lower than the original 440 mA specification. This part is suitable for applications where the lower ripple current specification does not exceed circuit requirements. The Panasonic part offers the advantage of cross-manufacturer sourcing, reducing supply chain dependency on a single manufacturer.

Both substitute parts satisfy the core substitution criteria of identical capacitance, voltage rating, tolerance, operating temperature range, lifetime rating, and mechanical compatibility. Selection between these options should be based on application-specific requirements regarding physical height constraints and ripple current performance.

Frequently Asked Questions (FAQ)

Q: Can ESMG250ELL331MHB5D be used as a direct replacement for SMG25VB331M8X11LL?

A: ESMG250ELL331MHB5D is electrically and mechanically compatible with SMG25VB331M8X11LL. Both parts share identical capacitance (330 µF), voltage rating (25 V), tolerance (±20%), operating temperature range (-40°C ~ 85°C), and lifetime rating (2000 Hrs @ 85°C). The lead spacing (0.138" / 3.50mm) and diameter (0.315" / 8.00mm) are identical, ensuring PCB footprint compatibility. The height difference of 0.059" (1.50mm) must be evaluated against available vertical clearance in the target application.

Q: What is the primary difference between the two substitute parts?

A: Both ESMG250ELL331MHB5D and ECA-1EM331 meet all critical electrical and mechanical substitution criteria. The primary differences are manufacturer (Chemi-Con versus Panasonic), height (0.512" versus 0.492"), and ripple current at 120 Hz (440 mA versus 390 mA). Selection depends on application-specific constraints regarding physical space and ripple current performance requirements.

Q: Are the substitute parts RoHS compliant?

A: Yes, both ESMG250ELL331MHB5D and ECA-1EM331 are ROHS3 compliant. The original SMG25VB331M8X11LL is RoHS non-compliant. Applications requiring RoHS compliance must use one of the substitute parts.

Q: Will the increased height of the substitute parts affect circuit performance?

A: Height differences do not affect electrical performance. However, physical clearance must be verified in the target application. ESMG250ELL331MHB5D has a maximum seated height of 0.512" (13.00mm), compared to the original 0.453" (11.50mm). If vertical space is constrained, ECA-1EM331 at 0.492" (12.50mm) may be preferable.

Q: Are there any differences in ripple current specifications?

A: ESMG250ELL331MHB5D maintains identical ripple current specifications to the original part: 440 mA @ 120 Hz and 660 mA @ 100 kHz. ECA-1EM331 specifies 390 mA @ 120 Hz and 663 mA @ 10 kHz. Applications with ripple current requirements at 120 Hz should verify that 390 mA is sufficient for the circuit design.

Q: Can these parts be used interchangeably on the same PCB?

A: ESMG250ELL331MHB5D and ECA-1EM331 share identical lead spacing (0.138" / 3.50mm) and diameter (0.315" / 8.00mm), making them mechanically interchangeable on the PCB. Vertical clearance must be confirmed for both parts before assembly.

Q: What is the inventory status of these substitute parts?

A: ESMG250ELL331MHB5D has 719 pieces in stock. ECA-1EM331 has 2,466 pieces in stock. Both parts are in active production status, ensuring ongoing availability.