USV1E100MFD Equivalent & Substitute Parts

Part Overview

The USV1E100MFD is a 10 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 5000 hours at 105°C and is designed for general-purpose applications. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance requirements.

Substiute Parts

USV1E100MFD

NichiconIn Stock: 1148USV1E100MFD Datasheet

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RNS1E100MDS1

NichiconIn Stock: 3133RNS1E100MDS1 Datasheet

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UHE1H100MDD

NichiconIn Stock: 3506UHE1H100MDD Datasheet

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UKL1E100MDDANA

NichiconIn Stock: 3636UKL1E100MDDANA Datasheet

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UUL1E100MCL1GS

NichiconIn Stock: 1379UUL1E100MCL1GS Datasheet

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50ML10MEFC5X7

RubyconIn Stock: 1059650ML10MEFC5X7 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the USV1E100MFD is determined by the following critical parameters:

• Capacitance: Must be 10 µF
• Voltage Rating: Must be 25 V or higher
• Tolerance: ±20% or tighter
• Mounting Type: Through Hole (for direct PCB compatibility)
• Package / Case: Radial, Can (mechanical fit requirement)
• Operating Temperature Range: Must support -40°C ~ 105°C minimum
• RoHS Compliance: ROHS3 Compliant

Substitute parts are grouped into three categories based on these parameters:

Similar Substitutes (same voltage rating, same mounting type):

• RNS1E100MDS1 (Nichicon, Polymer type, 2000 Hrs @ 105°C)
• UKL1E100MDDANA (Nichicon, 1000 Hrs @ 105°C, Not For New Designs)

Higher Voltage Substitutes (50 V rating, backward compatible):

• UHE1H100MDD (Nichicon, 5000 Hrs @ 105°C, Obsolete)
• 50ML10MEFC5X7 (Rubycon, 5000 Hrs @ 105°C, Obsolete)

Surface Mount Alternative (same electrical specs, different mounting):

• UUL1E100MCL1GS (Nichicon, SMD package, 5000 Hrs @ 105°C, Active)

Parameter Comparison

Engineering Selection Recommendations

For Direct Through-Hole Replacement (Same Voltage, Active Status): RNS1E100MDS1 is the primary active substitute. It maintains 10 µF capacitance and 25 V rating with ROHS3 compliance. The polymer type construction provides lower ESR (63 mOhm) and higher ripple current capability (170 mA @ 120 Hz vs. 33 mA for the original). Lifetime is reduced to 2000 hours at 105°C compared to 5000 hours for USV1E100MFD. This part is suitable for applications where the reduced lifetime is acceptable and active inventory is required.

For Higher Voltage Margin (50 V Rating): UHE1H100MDD and 50ML10MEFC5X7 both provide 50 V rating with 5000-hour lifetime at 105°C. Both are obsolete but maintain identical mechanical compatibility with the original part. These are suitable for applications requiring voltage derating or where 25 V margin is insufficient. UHE1H100MDD is Nichicon; 50ML10MEFC5X7 is Rubycon.

For Surface Mount Applications: UUL1E100MCL1GS is an active Nichicon part with identical electrical specifications (10 µF, 25 V, 5000 Hrs @ 105°C) but in SMD package. This is suitable only for PCB designs using surface mount technology and requires different land pattern design.

For Legacy Designs (Not Recommended for New Designs): UKL1E100MDDANA is marked "Not For New Designs" and has reduced lifetime (1000 Hrs @ 105°C). This part should be avoided for new production.

Frequently Asked Questions (FAQ)

Q: Can RNS1E100MDS1 directly replace USV1E100MFD in existing designs? A: Yes, mechanically and electrically. RNS1E100MDS1 has identical lead spacing (2.00mm), package type (Radial, Can), and electrical ratings (10 µF, 25 V, ±20%). The primary difference is reduced lifetime (2000 Hrs vs. 5000 Hrs @ 105°C) and polymer construction. Verify application lifetime requirements before substitution.

Q: Why would I use a 50 V rated capacitor instead of 25 V? A: Higher voltage rating provides design margin and derating capability. If circuit voltage is 20 V or higher, a 50 V capacitor reduces stress and extends component life. UHE1H100MDD and 50ML10MEFC5X7 maintain 5000-hour lifetime at 105°C, matching the original part's reliability.

Q: Is UUL1E100MCL1GS compatible with through-hole PCB designs? A: No. UUL1E100MCL1GS is a surface mount device (SMD) with different land pattern requirements. It cannot be used in through-hole designs without PCB redesign.

Q: What is the difference between Nichicon and Rubycon substitutes? A: Both manufacturers provide equivalent electrical and mechanical specifications. 50ML10MEFC5X7 (Rubycon) and UHE1H100MDD (Nichicon) both offer 10 µF, 50 V, 5000 Hrs @ 105°C. Selection depends on supply chain availability and design qualification requirements.

Q: Can I use UKL1E100MDDANA for new product designs? A: No. UKL1E100MDDANA is marked "Not For New Designs" and has reduced lifetime (1000 Hrs @ 105°C). This part is suitable only for legacy product maintenance where original specifications are not critical.

Q: What does "Polymer" type mean for RNS1E100MDS1? A: Polymer aluminum electrolytic capacitors use a conductive polymer cathode instead of liquid electrolyte. This provides lower ESR (63 mOhm), higher ripple current handling, and better high-frequency performance. Lifetime is typically lower than conventional aluminum electrolytic types.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitutes (USV1E100MFD, RNS1E100MDS1, UHE1H100MDD, UKL1E100MDDANA, UUL1E100MCL1GS, 50ML10MEFC5X7) are ROHS3 compliant and REACH unaffected.