KMG160VB331M18X35LL Equivalent & Substitute Parts

Part Overview

The KMG160VB331M18X35LL is a 330 µF, 160 V aluminum electrolytic capacitor manufactured by Chemi-Con in the KMG series. This radial, through-hole component is rated for general-purpose applications with a 2000-hour lifetime at 105°C and an operating temperature range of -40°C to 105°C. The part is currently listed as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement.

Substiute Parts

KMG160VB331M18X35LL

Chemi-ConIn Stock: 1109KMG160VB331M18X35LL Datasheet

Current PartRFQ

EKXG201ELL331MMP1S

Chemi-ConIn Stock: 887EKXG201ELL331MMP1S Datasheet

UpgradeRFQ

UCS2D331MHD

NichiconIn Stock: 4389UCS2D331MHD Datasheet

UpgradeRFQ

SEK331M160ST

Cornell Dubilier Electronics (CDE)In Stock: 898SEK331M160ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KMG160VB331M18X35LL is determined by the following critical parameters:

Primary Compatibility Criteria:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: Minimum 160 V (equal or higher acceptable)
• Lead Spacing: 0.295" (7.50 mm) (exact match required)
• Diameter: 0.709" (18.00 mm) (exact match required)
• Mounting Type: Through Hole Radial (exact match required)
• Polarization: Polar (exact match required)

Secondary Compatibility Considerations:

• Operating Temperature Range: -40°C ~ 105°C (minimum requirement)
• Lifetime @ 105°C: 2000 Hrs (minimum requirement)

Substitute parts are classified into two categories:

Upgrade Substitutes: Parts with voltage ratings higher than 160 V, improved lifetime specifications, and active product status. These provide enhanced performance margins and extended component availability.

Similar Substitutes: Parts with identical voltage and capacitance ratings but different physical dimensions or lifetime characteristics. These maintain electrical equivalence while offering alternative form factors or performance profiles.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

The SEK331M160ST from Cornell Dubilier Electronics maintains the exact voltage rating (160 V) and capacitance (330 µF) of the KMG160VB331M18X35LL. This part is active in production and ROHS3 compliant. Physical height differs (1.654" vs. 1.398"), requiring verification of available board space. This option is suitable for applications where voltage margin is not a design constraint.

For Enhanced Performance and Extended Availability:

The EKXG201ELL331MMP1S (Chemi-Con KXG series) and UCS2D331MHD (Nichicon UCS series) both provide 200 V voltage rating with 10000-hour lifetime at 105°C, compared to the original 160 V / 2000-hour specification. Both are ROHS3 compliant and active in production. The EKXG201ELL331MMP1S maintains the original height (1.398"), while the UCS2D331MHD has a slightly increased height (1.457"). These upgrades provide superior reliability margins and extended component lifecycle support.

Compliance Considerations:

The original KMG160VB331M18X35LL is RoHS non-compliant. All substitute parts listed (EKXG201ELL331MMP1S, UCS2D331MHD, SEK331M160ST) are ROHS3 compliant, supporting modern procurement and environmental compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the EKXG201ELL331MMP1S or UCS2D331MHD be used as direct replacements for the KMG160VB331M18X35LL?

A: Yes. Both parts share identical capacitance (330 µF), tolerance (±20%), lead spacing (7.50 mm), and diameter (18.00 mm). The higher voltage rating (200 V vs. 160 V) and extended lifetime (10000 Hrs vs. 2000 Hrs) make these suitable upgrades. The EKXG201ELL331MMP1S maintains the original height; the UCS2D331MHD is 0.059" taller. Verify available PCB space before selection.

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

A: Upgrade substitutes (EKXG201ELL331MMP1S, UCS2D331MHD) feature higher voltage ratings and longer lifetimes, providing enhanced performance margins. Similar substitutes (SEK331M160ST) maintain the original electrical specifications but may differ in physical dimensions or manufacturer. Selection depends on design requirements and available board space.

Q: Does the height difference between substitute parts affect PCB compatibility?

A: Yes. The KMG160VB331M18X35LL has a height of 1.398". The EKXG201ELL331MMP1S matches this height exactly. The UCS2D331MHD is 0.059" taller (1.457"), and the SEK331M160ST is 0.256" taller (1.654"). Verify PCB layout clearance, particularly for components mounted near the capacitor or in confined spaces.

Q: Are all substitute parts RoHS compliant?

A: Yes. The EKXG201ELL331MMP1S, UCS2D331MHD, and SEK331M160ST are all ROHS3 compliant. The original KMG160VB331M18X35LL is RoHS non-compliant. Substitution with any listed part satisfies modern RoHS compliance requirements.

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

A: EKXG201ELL331MMP1S: 805 Pcs in stock. UCS2D331MHD: 4350 Pcs in stock. SEK331M160ST: 878 Pcs in stock. All substitute parts are available in active production with established supply chains.

Q: Can the 200 V rated substitutes be used in circuits designed for 160 V operation?

A: Yes. A higher voltage rating provides additional safety margin and does not degrade performance in lower-voltage applications. The 200 V parts (EKXG201ELL331MMP1S, UCS2D331MHD) are electrically compatible with 160 V circuit designs.