Equivalent & Substitute Parts for SMG160VB331M18X35LL

Part Overview

The SMG160VB331M18X35LL is a 330 µF, 160 V aluminum electrolytic capacitor in radial configuration manufactured by Chemi-Con. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement. 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.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	160 V
Tolerance	±20%
ESR @ 120 Hz	92 mOhm
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Ripple Current @ 120 Hz	995 mA
Ripple Current @ 100 kHz	1.4925 A
Lead Spacing	0.295" (7.50 mm)
Diameter	0.709" (18.00 mm)
Height	1.398" (35.50 mm)
Mounting Type	Through Hole Radial
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the SMG160VB331M18X35LL is determined by the following critical parameters:

Primary Matching Criteria:

Capacitance value: 330 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage rating: minimum 160 V (equal or higher acceptable)
Mounting type: Through Hole Radial (exact match required)
Lead spacing: 0.295" (7.50 mm) (exact match required)
Diameter: 0.709" (18.00 mm) (exact match required)
Polarization: Polar (exact match required)
Package case: Radial, Can (exact match required)

Secondary Compatibility Factors:

Operating temperature range: -40°C to 85°C minimum
Ripple current ratings at 120 Hz and 100 kHz
Lifetime rating at rated temperature
RoHS compliance status
ESR characteristics

Substitute parts are classified into two categories:

Upgrade Substitutes: Parts with voltage ratings exceeding 160 V, extended temperature ranges, and improved lifetime ratings. These provide enhanced performance margins while maintaining identical physical dimensions and electrical interface.

Similar Substitutes: Parts with identical electrical specifications and physical dimensions but different product status or manufacturing series, offering direct functional equivalence.

Parameter Comparison

Parameter	SMG160VB331M18X35LL (Main)	EKXG201ELL331MMP1S (Upgrade)	ESMG161ELL331MMP1S (Similar)	UCS2D331MHD (Upgrade)
Manufacturer	Chemi-Con	Chemi-Con	Chemi-Con	Nichicon
Capacitance	330 µF	330 µF	330 µF	330 µF
Tolerance	±20%	±20%	±20%	±20%
Voltage Rating	160 V	200 V	160 V	200 V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 105°C	-40°C ~ 85°C	-40°C ~ 105°C
Lifetime @ Temperature	2000 Hrs @ 85°C	10000 Hrs @ 105°C	2000 Hrs @ 85°C	10000 Hrs @ 105°C
Ripple Current @ 120 Hz	995 mA	1.43 A	995 mA	1.61 A
Ripple Current @ 100 kHz	1.4925 A	3.2175 A	1.4925 A	3.22 A
Lead Spacing	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)
Diameter	0.709" (18.00 mm)	0.709" (18.00 mm)	0.709" (18.00 mm)	0.709" (18.00 mm)
Height	1.398" (35.50 mm)	1.398" (35.50 mm)	1.457" (37.00 mm)	1.457" (37.00 mm)
Product Status	Obsolete	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Functional Replacement:

ESMG161ELL331MMP1S is the appropriate selection when exact electrical and thermal specifications of the original SMG160VB331M18X35LL must be maintained. This part shares identical capacitance, voltage rating, tolerance, and operating temperature range. The component is manufactured by Chemi-Con within the same SMG series and holds active product status. ROHS3 compliance provides regulatory advantage over the obsolete original part. Height dimension increases from 1.398" to 1.457", requiring verification of available board space.

For Enhanced Performance Applications:

EKXG201ELL331MMP1S and UCS2D331MHD both provide upgraded specifications suitable for applications requiring extended operational margins. Both parts increase voltage rating to 200 V, extend operating temperature to 105°C, and provide 10000-hour lifetime at 105°C compared to 2000 hours at 85°C for the original. Ripple current capacity increases substantially at both 120 Hz and 100 kHz frequencies. Both substitute parts maintain identical lead spacing and diameter. Height increases to 1.457", requiring board layout verification. EKXG201ELL331MMP1S is Chemi-Con manufactured; UCS2D331MHD is Nichicon manufactured. Both hold ROHS3 compliance.

Compliance Considerations:

All three substitute parts achieve ROHS3 compliance, addressing regulatory requirements not met by the obsolete SMG160VB331M18X35LL. Selection between Chemi-Con and Nichicon manufacturers depends on existing supply chain qualification and procurement preferences.

Frequently Asked Questions (FAQ)

Q: Can EKXG201ELL331MMP1S or UCS2D331MHD be used as direct replacements for SMG160VB331M18X35LL?

A: Yes. Both parts maintain identical capacitance (330 µF), tolerance (±20%), lead spacing (7.50 mm), and diameter (18.00 mm). The 200 V rating exceeds the 160 V requirement, providing voltage margin. Operating temperature extends to 105°C, and lifetime extends to 10000 hours at 105°C. Height increases from 1.398" to 1.398" (EKXG201ELL331MMP1S) or 1.457" (UCS2D331MHD), requiring board space verification.

Q: What is the difference between ESMG161ELL331MMP1S and the original SMG160VB331M18X35LL?

A: ESMG161ELL331MMP1S provides identical electrical specifications: 330 µF capacitance, 160 V rating, ±20% tolerance, -40°C to 85°C operating range, and 2000-hour lifetime at 85°C. The primary differences are active product status versus obsolete status and ROHS3 compliance. Height increases from 1.398" to 1.457". This part is the closest functional equivalent.

Q: Are there physical dimension constraints when substituting with parts having 1.457" height?

A: Yes. ESMG161ELL331MMP1S, EKXG201ELL331MMP1S, and UCS2D331MHD all have 1.457" seated height compared to 1.398" for the original. Verify available vertical clearance on the PCB before selection. Lead spacing (7.50 mm) and diameter (18.00 mm) remain unchanged across all parts.

Q: Which substitute part provides the best performance upgrade?

A: EKXG201ELL331MMP1S and UCS2D331MHD both provide identical performance upgrades: 200 V voltage rating, 105°C maximum operating temperature, and 10000-hour lifetime at 105°C. Ripple current capacity increases to 1.43 A (EKXG201ELL331MMP1S) or 1.61 A (UCS2D331MHD) at 120 Hz. Selection depends on manufacturer preference and supply chain availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. ESMG161ELL331MMP1S, EKXG201ELL331MMP1S, and UCS2D331MHD all achieve ROHS3 compliance, addressing regulatory requirements not met by the obsolete SMG160VB331M18X35LL.

Q: What is the lead spacing for all parts in this comparison?

A: All parts, including the original SMG160VB331M18X35LL and all three substitutes, maintain identical lead spacing of 0.295" (7.50 mm), ensuring PCB footprint compatibility.

Q: Can UCS2D331MHD from Nichicon be used interchangeably with Chemi-Con parts?

A: Yes. UCS2D331MHD maintains identical capacitance, tolerance, voltage rating, lead spacing, and diameter specifications. The part is manufactured by Nichicon rather than Chemi-Con. Selection depends on existing supply chain qualification and procurement policies regarding manufacturer diversity.

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