SMG16VB331M8X11LL Equivalent & Substitute Parts

Part Overview

The SMG16VB331M8X11LL is a 330 µF, 16 V aluminum electrolytic capacitor manufactured by Chemi-Con in radial, can package configuration. This component is classified as obsolete, indicating discontinuation from 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, suitable for general-purpose applications requiring stable capacitance and low equivalent series resistance.

Identification of equivalent and substitute parts is necessary due to the obsolete status of the SMG16VB331M8X11LL. Equivalent alternatives maintain identical electrical and mechanical specifications, while substitute parts offer comparable performance within the allowed parameter tolerances for 330 µF, 16 V aluminum electrolytic capacitors in radial configuration.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Tolerance	±20%	-
Voltage - Rated	16	V
Operating Temperature Range	-40°C ~ 85°C	-
Lifetime @ Temperature	2000 Hrs @ 85°C	-
Lead Spacing	0.138" (3.50mm)	-
Size / Dimension	0.315" Dia (8.00mm)	-
Mounting Type	Through Hole	-
Package / Case	Radial, Can	-
Polarization	Polar	-

Substitute Part Grouping Explanation

Substitution validity for 330 µF, 16 V aluminum electrolytic capacitors in radial configuration is determined by the following criteria:

Primary Electrical Parameters:

Capacitance: 330 µF (fixed requirement)
Tolerance: ±20% (fixed requirement)
Voltage Rating: 16 V (fixed requirement)
Polarization: Polar (fixed requirement)

Primary Mechanical Parameters:

Lead Spacing: 0.138" (3.50mm) (fixed requirement)
Size / Dimension: 0.315" Dia (8.00mm) (fixed requirement)
Mounting Type: Through Hole (fixed requirement)
Package / Case: Radial, Can (fixed requirement)

Secondary Performance Parameters (Allowable Variation):

Lifetime @ Temperature: 2000 Hrs @ 85°C or higher
Operating Temperature Range: -40°C ~ 85°C or extended range
ESR (Equivalent Series Resistance): Specification-dependent
Ripple Current: Specification-dependent

Substitute parts are grouped into three categories based on their relationship to the main part:

Similar Substitutes: Parts maintaining identical electrical and mechanical specifications with equivalent performance characteristics.

Direct Substitutes: Parts from alternative manufacturers with matching core parameters and compatible applications.

Upgrade Substitutes: Parts offering enhanced performance characteristics such as extended lifetime, improved temperature range, or superior ripple current handling while maintaining mechanical compatibility.

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance	Lifetime @ Temp.	Operating Temp. Range	Height - Seated (Max)	Product Status	RoHS Status
SMG16VB331M8X11LL	Chemi-Con	330	16	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.453" (11.50mm)	Obsolete	RoHS non-compliant
ESMG160ELL331MHB5D	Chemi-Con	330	16	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.512" (13.00mm)	Active	ROHS3 Compliant
UFW1C331MPD	Nichicon	330	16	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.453" (11.50mm)	Not For New Designs	ROHS3 Compliant
UKW1C331MPD	Nichicon	330	16	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.453" (11.50mm)	Not For New Designs	ROHS3 Compliant
EEU-FC1C331	Panasonic Electronic Components	330	16	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.453" (11.50mm)	Active	ROHS3 Compliant
UHE1C331MPD	Nichicon	330	16	±20%	7000 Hrs @ 105°C	-40°C ~ 105°C	0.453" (11.50mm)	Not For New Designs	ROHS3 Compliant
UPW1C331MPD	Nichicon	330	16	±20%	3000 Hrs @ 105°C	-55°C ~ 105°C	0.453" (11.50mm)	Not For New Designs	ROHS3 Compliant
ECA-1CM331	Panasonic Electronic Components	330	16	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.492" (12.50mm)	Active	ROHS3 Compliant
SK331M016ST	Cornell Dubilier Electronics (CDE)	330	16	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.531" (13.50mm)	Active	ROHS3 Compliant
UVR1C331MPD	Nichicon	330	16	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.512" (13.00mm)	Not For New Designs	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Mechanical Compatibility Priority):

UFW1C331MPD and UKW1C331MPD from Nichicon maintain identical height specifications (0.453" / 11.50mm) to the original SMG16VB331M8X11LL, ensuring direct PCB footprint compatibility. Both parts are ROHS3 compliant. However, both are classified as "Not For New Designs," indicating limited future availability.

For Active Production Status:

ESMG160ELL331MHB5D from Chemi-Con is the same manufacturer as the original part and maintains active product status. This part is ROHS3 compliant and offers identical electrical specifications. Height is 0.512" (13.00mm), requiring PCB layout verification for clearance.

ECA-1CM331 from Panasonic Electronic Components is active production status with ROHS3 compliance. Height is 0.492" (12.50mm), requiring PCB layout verification.

SK331M016ST from Cornell Dubilier Electronics (CDE) is active production status with ROHS3 compliance. Height is 0.531" (13.50mm), requiring PCB layout verification.

For Enhanced Performance (Extended Lifetime):

EEU-FC1C331 from Panasonic Electronic Components offers 2000 Hrs @ 105°C lifetime with extended operating temperature range (-55°C ~ 105°C). This part is active production status and ROHS3 compliant. AEC-Q200 rating indicates automotive-grade qualification. Height matches original specification at 0.453" (11.50mm).

UHE1C331MPD from Nichicon provides superior lifetime rating of 7000 Hrs @ 105°C with extended operating temperature range (-40°C ~ 105°C). ROHS3 compliant with height matching original specification at 0.453" (11.50mm). Classified as "Not For New Designs."

UPW1C331MPD from Nichicon offers 3000 Hrs @ 105°C lifetime with extended operating temperature range (-55°C ~ 105°C). ROHS3 compliant with height matching original specification at 0.453" (11.50mm). Classified as "Not For New Designs."

Selection Priority:

For new designs requiring active production status: EEU-FC1C331 (Panasonic) or ECA-1CM331 (Panasonic) or SK331M016ST (CDE)
For direct mechanical replacement: UFW1C331MPD or UKW1C331MPD (Nichicon)
For same-manufacturer continuity: ESMG160ELL331MHB5D (Chemi-Con)

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different height specification?

A: Height differences require PCB layout verification. The original SMG16VB331M8X11LL has a maximum seated height of 0.453" (11.50mm). Substitute parts with greater heights (0.492", 0.512", or 0.531") may require clearance verification for components or enclosures in close proximity. Substitute parts with identical height (0.453") require no layout modification.

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

A: Parts marked "Not For New Designs" indicate that the manufacturer is not recommending these components for new product development. While these parts remain available in current inventory, they may have limited future availability or extended lead times. For new designs, selection of active production status parts is recommended.

Q: Are all substitute parts RoHS compliant?

A: The original SMG16VB331M8X11LL is RoHS non-compliant. All listed substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements. This represents an improvement over the original part specification.

Q: What is the difference between similar and upgrade substitutes?

A: Similar substitutes maintain equivalent electrical and thermal performance characteristics to the original part. Upgrade substitutes offer enhanced performance such as extended lifetime ratings (3000 Hrs or 7000 Hrs @ 105°C versus 2000 Hrs @ 85°C) or wider operating temperature ranges (-55°C to 105°C versus -40°C to 85°C), while maintaining mechanical compatibility.

Q: Can I substitute a part with extended temperature range in a design rated for -40°C to 85°C?

A: Yes. A part rated for -55°C to 105°C operating range is compatible with applications requiring -40°C to 85°C operation. The extended range provides additional design margin and reliability. No design modification is required.

Q: What does AEC-Q200 rating indicate?

A: AEC-Q200 is an automotive electronics qualification standard. Parts meeting this specification have undergone rigorous testing for automotive applications. EEU-FC1C331 carries this rating, indicating suitability for automotive-grade reliability requirements.

Q: How do I verify PCB footprint compatibility?

A: Verify three parameters: lead spacing (all substitutes maintain 0.138" / 3.50mm), diameter (all substitutes maintain 0.315" / 8.00mm), and height. Height is the primary variable. Measure available vertical clearance on your PCB and compare against the substitute part's maximum seated height specification.

Q: Are there inventory considerations for part selection?

A: Current inventory levels vary by part. ECA-1CM331 (Panasonic) shows highest inventory at 11,597 pieces. ESMG160ELL331MHB5D (Chemi-Con) shows 5,043 pieces. UFW1C331MPD and UKW1C331MPD (Nichicon) show 1,373 and 4,061 pieces respectively. Inventory levels should be confirmed with suppliers for production requirements.

Q: What is the difference between ESR specifications?

A: ESR (Equivalent Series Resistance) affects ripple current handling and heat generation. The original SMG16VB331M8X11LL specifies 444 mOhm @ 120Hz. Substitute parts with lower ESR values provide improved performance. EEU-FC1C331 specifies 117 mOhms impedance, representing superior performance. Parts without specified ESR values require supplier confirmation for critical applications.

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