SMG35VB331M10X12LL Equivalent & Substitute Parts

Part Overview

The SMG35VB331M10X12LL is a 330 µF, 35 V aluminum electrolytic capacitor in radial, can package manufactured by Chemi-Con. This component is classified as obsolete, indicating it is no longer in active production. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 2000 hours at 85°C, making it suitable for general-purpose applications requiring stable capacitance performance in through-hole configurations.

Due to its obsolete status, identifying equivalent and substitute parts is necessary for ongoing maintenance, repair, and redesign activities. Substitute components must maintain electrical compatibility while meeting current manufacturing and compliance standards.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Tolerance	±20%	-
Voltage - Rated	35	V
Operating Temperature Range	-40°C to 85°C	-
Lifetime @ Temperature	2000	Hrs @ 85°C
Lead Spacing	0.197" (5.00 mm)	-
Diameter	0.394" (10.00 mm)	-
Mounting Type	Through Hole	-
Package / Case	Radial, Can	-
Polarization	Polar	-

Substitute Part Grouping Explanation

Substitution of the SMG35VB331M10X12LL 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: 35 V (exact match required)
Operating Temperature Range: -40°C to 85°C (exact match required)
Lifetime: 2000 Hrs @ 85°C (exact match required)

Mechanical Parameters:

Lead Spacing: 0.197" (5.00 mm) (exact match required)
Diameter: 0.394" (10.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)

Compliance Parameters:

RoHS Status: Compliance preferred for new applications
REACH Status: REACH Unaffected (all candidates meet this requirement)

Substitute parts are grouped into two categories: Direct Equivalents (identical height and ESR characteristics) and Similar Equivalents (matching all critical electrical and mechanical parameters with minor dimensional variations in height that do not affect circuit board layout compatibility).

Parameter Comparison

Parameter	SMG35VB331M10X12LL	ESMG350ELL331MJC5S	UFW1V331MPD	UKW1V331MPD	ECA-1VM331	SK331M035ST	UVR1V331MPD
Manufacturer	Chemi-Con	Chemi-Con	Nichicon	Nichicon	Panasonic	Cornell Dubilier	Nichicon
Capacitance (µF)	330	330	330	330	330	330	330
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%	±20%
Voltage Rating (V)	35	35	35	35	35	35	35
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Lifetime @ 85°C (Hrs)	2000	2000	2000	2000	2000	2000	2000
Lead Spacing (mm)	5.00	5.00	5.00	5.00	5.00	5.00	5.00
Diameter (mm)	10.00	10.00	10.00	10.00	10.00	10.00	10.00
Height - Seated Max (mm)	12.50	14.00	12.50	12.50	13.50	20.00	14.00
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Product Status	Obsolete	Active	Not For New Designs	Not For New Designs	Active	Active	Not For New Designs
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Maintenance and Repair of Existing Assemblies:

UFW1V331MPD and UKW1V331MPD are direct dimensional equivalents to the SMG35VB331M10X12LL, both featuring identical 12.50 mm seated height and 10.00 mm diameter. These Nichicon components maintain full electrical compatibility and are ROHS3 compliant. However, both are classified as "Not For New Designs," indicating they are suitable for replacement in legacy systems but not recommended for new product development.

For Active Production and New Designs:

ECA-1VM331 (Panasonic) and ESMG350ELL331MJC5S (Chemi-Con) are the preferred substitutes. Both are classified as Active products with ROHS3 compliance. ECA-1VM331 offers the advantage of active product status from a major manufacturer with established supply chain reliability. ESMG350ELL331MJC5S provides continuity with the original Chemi-Con manufacturer while meeting current compliance standards. Both accommodate the original 5.00 mm lead spacing and 10.00 mm diameter, with height variations of 13.50 mm and 14.00 mm respectively, which remain compatible with standard through-hole PCB layouts.

For General-Purpose Applications with Height Constraints:

If circuit board clearance is critical and the original 12.50 mm height must be maintained, UFW1V331MPD or UKW1V331MPD are the only candidates that preserve the exact original dimensions. For applications where modest height increases are acceptable, ECA-1VM331 and ESMG350ELL331MJC5S provide superior compliance and active product status.

For Audio Applications:

UFW1V331MPD and UKW1V331MPD are specifically rated for audio applications and may be preferred in audio circuit designs where the original component was specified for this purpose.

Not Recommended:

SK331M035ST (Cornell Dubilier) exhibits a significantly increased seated height of 20.00 mm, which may create clearance conflicts in compact layouts designed for the original 12.50 mm component. This part is suitable only for applications where height constraints are not a limiting factor.

Frequently Asked Questions (FAQ)

Q: Can I use ESMG350ELL331MJC5S as a direct replacement for SMG35VB331M10X12LL?

A: ESMG350ELL331MJC5S is electrically and mechanically compatible with SMG35VB331M10X12LL. Both share identical capacitance (330 µF), voltage rating (35 V), tolerance (±20%), operating temperature range (-40°C to 85°C), lifetime (2000 Hrs @ 85°C), lead spacing (5.00 mm), and diameter (10.00 mm). The height difference is 1.50 mm (14.00 mm versus 12.50 mm), which does not affect through-hole PCB compatibility in standard layouts. ESMG350ELL331MJC5S is ROHS3 compliant and carries Active product status, making it suitable for both maintenance and new designs.

Q: What is the difference between UFW1V331MPD and UKW1V331MPD?

A: UFW1V331MPD and UKW1V331MPD are both Nichicon products with identical electrical specifications and physical dimensions (330 µF, 35 V, 12.50 mm height, 10.00 mm diameter, 5.00 mm lead spacing). Both are rated for audio applications and classified as "Not For New Designs." The primary distinction is the series designation (UFW versus UKW). Both are ROHS3 compliant and suitable for replacement in legacy systems. Selection between them depends on original circuit design specifications or availability.

Q: Why is SK331M035ST not recommended as a substitute?

A: SK331M035ST meets all electrical requirements (330 µF, 35 V, ±20% tolerance, 2000 Hrs @ 85°C, -40°C to 85°C operating range) and maintains the required 5.00 mm lead spacing and 10.00 mm diameter. However, its seated height of 20.00 mm exceeds the original component height by 7.50 mm. This significant dimensional increase may create clearance conflicts in compact circuit board layouts designed for the original 12.50 mm height. SK331M035ST is suitable only for applications where vertical clearance is not constrained.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed are ROHS3 compliant. The original SMG35VB331M10X12LL is RoHS non-compliant. If RoHS compliance is a requirement for your application, any of the listed substitutes satisfy this criterion.

Q: Which substitute offers the best long-term availability?

A: ECA-1VM331 (Panasonic) and ESMG350ELL331MJC5S (Chemi-Con) are both classified as Active products, indicating ongoing production and supply chain support. These are the preferred choices for applications requiring long-term component availability and supply chain stability.

Q: Can I use a substitute part with a different height in a space-constrained application?

A: Height compatibility depends on your specific circuit board layout. If the original 12.50 mm height was selected to meet clearance requirements, only UFW1V331MPD and UKW1V331MPD preserve this dimension. ECA-1VM331 (13.50 mm), ESMG350ELL331MJC5S (14.00 mm), and UVR1V331MPD (14.00 mm) require verification that the additional 1.00 to 1.50 mm does not violate clearance constraints. SK331M035ST (20.00 mm) requires explicit clearance confirmation before use.

Q: What is the significance of "Not For New Designs" status?

A: "Not For New Designs" indicates that the manufacturer is not recommending the component for incorporation into new product designs, though the part remains available for existing applications and maintenance. For new product development, Active status components such as ECA-1VM331 and ESMG350ELL331MJC5S are preferred to ensure long-term support and compliance with evolving standards.

Q: Are there any ripple current differences between substitutes?

A: Ripple current specifications vary among substitutes. UFW1V331MPD and UKW1V331MPD specify 470 mA @ 120 Hz, while the original SMG35VB331M10X12LL specifies 490 mA @ 120 Hz. ECA-1VM331 specifies 440 mA @ 120 Hz. These variations are within acceptable ranges for general-purpose applications but should be verified against your specific circuit requirements if ripple current performance is critical.

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