UVK2C331MHD Equivalent & Substitute Parts

Part Overview

The UVK2C331MHD is a 330 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Finding equivalent and substitute parts is necessary to support existing designs, maintain inventory for legacy systems, and identify active alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

UVK2C331MHD

NichiconIn Stock: 1192UVK2C331MHD Datasheet

Current PartRFQ

ESMQ161ELL331MMP1S

Chemi-ConIn Stock: 1080ESMQ161ELL331MMP1S Datasheet

DirectRFQ

B43821F1337M000

EPCOS - TDK ElectronicsIn Stock: 912B43821F1337M000 Datasheet

UpgradeRFQ

EKMQ161ELL331MMP1S

Chemi-ConIn Stock: 775EKMQ161ELL331MMP1S Datasheet

UpgradeRFQ

EKXJ221ELL331MMP1S

Chemi-ConIn Stock: 1015EKXJ221ELL331MMP1S Datasheet

UpgradeRFQ

ESMG161ELL331MMP1S

Chemi-ConIn Stock: 1136ESMG161ELL331MMP1S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the UVK2C331MHD is determined by the following critical parameters:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 160 V minimum (equal or higher voltage rating is acceptable)
• Package Dimensions: Lead spacing 0.295" (7.50 mm), case diameter 0.709" (18.00 mm), height within tolerance
• Mounting Type: Through Hole, radial configuration
• Polarization: Polar (electrolytic)
• Compliance: ROHS3 compliant

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

Direct Equivalents maintain identical electrical specifications (330 µF, 160 V, 2000 Hrs @ 85°C) with compatible package dimensions.

Upgrade Options provide enhanced performance characteristics such as extended lifetime at higher temperatures or improved ripple current handling while maintaining the same capacitance and voltage rating.

Similar Alternatives offer the same core specifications with minor variations in series designation or performance metrics.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Pin-Compatible, Specification-Matched)

ESMQ161ELL331MMP1S and ESMG161ELL331MMP1S are direct functional equivalents with active product status. Both maintain 330 µF capacitance, 160 V rating, and 2000 Hrs @ 85°C lifetime. Package dimensions are compatible with the original UVK2C331MHD, with height reduced by 0.019" (0.50 mm), which is within acceptable tolerance for through-hole mounting. Both are ROHS3 compliant.

For Enhanced Reliability (Higher Lifetime)

B43821F1337M000 (EPCOS - TDK Electronics) provides extended lifetime of 3000 Hrs @ 85°C compared to the original 2000 Hrs, with identical electrical specifications. This option is suitable for applications requiring improved long-term stability. Package dimensions remain compatible.

For Extended Temperature Operation

EKMQ161ELL331MMP1S extends the operating temperature range to -40°C ~ 105°C with 2000 Hrs @ 105°C lifetime rating. This option is appropriate for applications subject to elevated ambient temperatures. Electrical specifications remain identical to the original part.

For High-Reliability Automotive Applications

EKXJ221ELL331MMP1S offers the highest performance tier with 12000 Hrs @ 105°C lifetime, AEC-Q200 automotive rating, and extended voltage rating of 220 V. This part is suitable for automotive and mission-critical applications. Note that the voltage rating is higher than the original specification; this does not affect compatibility but provides additional design margin.

Frequently Asked Questions (FAQ)

Q: Can ESMQ161ELL331MMP1S be used as a direct replacement for UVK2C331MHD?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (160 V), tolerance (±20%), lifetime (2000 Hrs @ 85°C), and operating temperature range (-40°C ~ 85°C). Package dimensions are compatible for through-hole mounting. ESMQ161ELL331MMP1S has active product status, making it suitable for new procurement.

Q: What is the difference between ESMQ161ELL331MMP1S and ESMG161ELL331MMP1S?

A: Both parts are functionally equivalent with identical electrical specifications and package compatibility. The difference lies in the series designation (SMQ vs. SMG), which reflects internal design variations within Chemi-Con's product line. Either part is acceptable for replacement applications.

Q: Why would I choose B43821F1337M000 over ESMQ161ELL331MMP1S?

A: B43821F1337M000 provides extended lifetime of 3000 Hrs @ 85°C versus 2000 Hrs for ESMQ161ELL331MMP1S. Select this option if your application requires improved long-term reliability or operates continuously at elevated temperatures near the 85°C limit.

Q: Is EKXJ221ELL331MMP1S compatible with circuits designed for 160 V operation?

A: Yes. EKXJ221ELL331MMP1S has a 220 V voltage rating, which is higher than the original 160 V specification. A higher voltage rating does not affect compatibility; the capacitor will function correctly in 160 V circuits. The higher rating provides additional design margin and is suitable for applications requiring enhanced voltage stress tolerance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the original UVK2C331MHD.

Q: What is the maximum height difference between the original part and substitutes?

A: The original UVK2C331MHD has a maximum height of 1.476" (37.50 mm). All substitute parts have a maximum height of 1.457" (37.00 mm), representing a reduction of 0.019" (0.50 mm). This difference is within acceptable tolerance for through-hole PCB mounting and does not affect mechanical fit or electrical performance.

Q: Can I use EKMQ161ELL331MMP1S in applications operating above 85°C?

A: Yes. EKMQ161ELL331MMP1S is rated for operation up to 105°C with 2000 Hrs lifetime at that temperature. This part is suitable for applications with ambient temperatures or component-level heating up to 105°C.