LXY25VB331M8X20LL Equivalent & Substitute Parts

Part Overview

The LXY25VB331M8X20LL is a 330 µF, 25 V aluminum electrolytic capacitor manufactured by Chemi-Con in the LXY series. This radial, through-hole component is rated for 3000 hours at 105°C and is designed for general-purpose applications. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance requirements.

Substiute Parts

LXY25VB331M8X20LL

Chemi-ConIn Stock: 941LXY25VB331M8X20LL Datasheet

Current PartRFQ

ELXY250ELL331MH20D

Chemi-ConIn Stock: 1161ELXY250ELL331MH20D Datasheet

SimilarRFQ

UPW1V331MPD6

NichiconIn Stock: 3724UPW1V331MPD6 Datasheet

UpgradeRFQ

UPW1E331MPD6

NichiconIn Stock: 12084UPW1E331MPD6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LXY25VB331M8X20LL is determined by the following critical parameters:

Primary Substitution Criteria:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 25 V minimum (equal or higher voltage rating acceptable)
• Tolerance: ±20% (matching tolerance)
• Lead Spacing: 0.138" (3.50mm) (mechanical compatibility)
• Case Diameter: 0.315" Dia (8.00mm) (PCB footprint compatibility)
• Mounting Type: Through Hole, Radial (form factor requirement)
• Polarization: Polar (electrical requirement)

Substitute parts are grouped into two categories:

1. Similar Substitutes – Identical electrical specifications (330 µF, 25 V) with compatible mechanical dimensions
2. Upgrade Substitutes – Higher voltage rating (35 V) with identical capacitance, providing enhanced voltage margin while maintaining mechanical compatibility

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

ELXY250ELL331MH20D (Chemi-Con) and UPW1E331MPD6 (Nichicon) are direct electrical equivalents to the LXY25VB331M8X20LL. Both maintain 330 µF capacitance at 25 V with ±20% tolerance and 3000-hour lifetime rating. Both parts are ROHS3 compliant and carry active product status, ensuring long-term availability. ELXY250ELL331MH20D is the same manufacturer as the original part. UPW1E331MPD6 offers lower impedance (85 mOhms vs. 95 mOhms) and a more compact height (0.591" vs. 0.787"), providing potential benefits for space-constrained applications while maintaining electrical compatibility.

For Voltage Margin Enhancement:

UPW1V331MPD6 (Nichicon) provides a 35 V rating while maintaining 330 µF capacitance and identical mechanical dimensions. This upgrade option increases voltage headroom for circuits operating near the 25 V limit. The part carries ROHS3 compliance but is marked "Not For New Designs," limiting its suitability for new product development. Lower impedance (65 mOhms) and higher ripple current ratings provide improved performance characteristics.

Compliance Considerations:

The original LXY25VB331M8X20LL is RoHS non-compliant. All substitute parts listed are ROHS3 compliant, meeting modern regulatory requirements for new applications and production environments.

Frequently Asked Questions (FAQ)

Q: Can ELXY250ELL331MH20D be used as a direct replacement for LXY25VB331M8X20LL?

A: Yes. Both parts share identical electrical specifications (330 µF, 25 V, ±20% tolerance, 3000 Hrs @ 105°C) and mechanical dimensions (0.138" lead spacing, 0.315" case diameter). The height difference (0.846" vs. 0.787") is within typical PCB layout tolerances for through-hole components. ELXY250ELL331MH20D is manufactured by the same company (Chemi-Con) and carries active product status.

Q: What is the difference between UPW1E331MPD6 and UPW1V331MPD6?

A: The primary difference is voltage rating: UPW1E331MPD6 is rated 25 V, while UPW1V331MPD6 is rated 35 V. Both maintain 330 µF capacitance. UPW1V331MPD6 offers lower impedance (65 mOhms vs. 85 mOhms) and higher ripple current capability. UPW1E331MPD6 is active product status; UPW1V331MPD6 is marked "Not For New Designs."

Q: Can I use a 35 V rated capacitor in place of a 25 V rated capacitor?

A: Yes. A higher voltage rating is electrically compatible with circuits designed for lower voltage operation. UPW1V331MPD6 (35 V) can substitute for LXY25VB331M8X20LL (25 V) in applications where the circuit voltage does not exceed 25 V. The higher voltage rating provides additional safety margin.

Q: Are there height restrictions for PCB mounting?

A: Yes. The original part has a maximum seated height of 0.787" (20.00mm). ELXY250ELL331MH20D reaches 0.846" (21.50mm), and UPW1E331MPD6 is 0.591" (15.00mm). Verify PCB clearance before substitution, particularly in space-constrained designs or where components are mounted near other tall components.

Q: What does "Not For New Designs" mean for UPW1V331MPD6?

A: This designation indicates the manufacturer does not recommend this part for new product development. While the part remains available and functional, it may have limited long-term availability or planned discontinuation. For new designs, UPW1E331MPD6 or ELXY250ELL331MH20D are preferred choices.

Q: How do impedance differences affect circuit performance?

A: Lower impedance (measured in mOhms) reduces voltage ripple and improves high-frequency filtering performance. UPW1E331MPD6 (85 mOhms) and UPW1V331MPD6 (65 mOhms) have lower impedance than the original LXY25VB331M8X20LL (95 mOhms), providing improved ripple current handling and potentially better circuit stability at high frequencies.