Equivalent & Substitute Parts for USV1C330MFD

Part Overview

The USV1C330MFD is a 33 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 5000 hours at 105°C, serving general-purpose applications requiring stable capacitance and ripple current handling.

Substiute Parts

USV1C330MFD

NichiconIn Stock: 1037USV1C330MFD Datasheet

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RNS1C330MDS1

NichiconIn Stock: 823RNS1C330MDS1 Datasheet

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UUL1C330MCL1GS

NichiconIn Stock: 909UUL1C330MCL1GS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the USV1C330MFD is determined by the following critical parameters:

• Capacitance value: 33 µF (exact match required)
• Voltage rating: 16 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Operating temperature range: Must encompass -40°C to 105°C minimum
• RoHS compliance: ROHS3 Compliant (maintained)

Two substitute parts meet these electrical criteria. The RNS1C330MDS1 is a through-hole radial can capacitor with identical footprint and lead spacing, classified as an aluminum-polymer variant with active product status. The UUL1C330MCL1GS is a surface-mount variant with the same electrical specifications but different mounting technology and package configuration.

Parameter Comparison

Engineering Selection Recommendations

For through-hole applications requiring direct footprint compatibility with the USV1C330MFD, the RNS1C330MDS1 provides an active-status alternative with identical lead spacing and mounting dimensions. This part maintains ROHS3 compliance and extends the operating temperature range to -55°C. However, the rated lifetime at 105°C is reduced to 2000 hours compared to the original 5000 hours, and the ripple current handling is significantly increased due to its polymer construction.

For surface-mount applications or new designs, the UUL1C330MCL1GS offers active product status with equivalent electrical specifications and the original 5000-hour lifetime rating at 105°C. This part requires surface-mount assembly and land pattern modifications but maintains ROHS3 compliance and identical capacitance, voltage, and tolerance parameters.

Both substitutes are manufactured by Nichicon and carry ROHS3 and REACH compliance certifications matching the original part.

Frequently Asked Questions (FAQ)

Q: Can the RNS1C330MDS1 be used as a direct replacement for the USV1C330MFD in existing through-hole PCB designs?

A: Yes. Both parts share identical lead spacing (0.098" / 2.50 mm), diameter (0.248" / 6.30 mm), and height (0.315" / 8.00 mm). The RNS1C330MDS1 is a through-hole radial can capacitor with the same footprint. However, the reduced lifetime rating (2000 hours versus 5000 hours at 105°C) must be evaluated against application requirements.

Q: What is the primary difference between the RNS1C330MDS1 and the original USV1C330MFD?

A: The RNS1C330MDS1 uses aluminum-polymer construction, resulting in lower ESR (49 mOhm) and higher ripple current capability (1.9 A @ 100 kHz versus 85.5 mA @ 10 kHz). The trade-off is a reduced lifetime at elevated temperature (2000 hours versus 5000 hours at 105°C). The operating temperature range is extended to -55°C.

Q: Is the UUL1C330MCL1GS suitable for through-hole applications?

A: No. The UUL1C330MCL1GS is a surface-mount device (SMD) with different mounting technology and land pattern requirements. It cannot be used in through-hole PCB designs without redesign of the assembly process and circuit board layout.

Q: Do all three parts meet the same compliance standards?

A: Yes. The USV1C330MFD, RNS1C330MDS1, and UUL1C330MCL1GS are all ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What is the key consideration when selecting between the two active substitutes?

A: The primary selection criterion is mounting technology. For through-hole assembly, use the RNS1C330MDS1. For surface-mount assembly, use the UUL1C330MCL1GS. Both maintain the 33 µF, 16 V, ±20% electrical specification. The RNS1C330MDS1 offers higher ripple current handling but reduced lifetime; the UUL1C330MCL1GS maintains the original 5000-hour lifetime rating.