UJB0L103THD Equivalent & Substitute Parts

Part Overview

The Nichicon UJB0L103THD is a 10000 µF, 5.5 V aluminum electrolytic capacitor in radial, can package configuration. This component is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement. The part is designed for general-purpose applications requiring high capacitance in a compact through-hole format with a 1000-hour lifetime rating at 85°C.

Substiute Parts

UJB0L103THD

NichiconIn Stock: 810UJB0L103THD Datasheet

Current PartRFQ

6.3ZLQ10000MEFC12.5X35

RubyconIn Stock: 11376.3ZLQ10000MEFC12.5X35 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UJB0L103THD is based on the following critical parameters:

• Capacitance Match: 10000 µF (exact match required)
• Voltage Rating: Minimum 5.5 V (substitute rated at 6.3 V exceeds requirement)
• Package Type: Radial, can through-hole configuration
• Lead Spacing: 0.197" (5.00mm) for PCB compatibility
• Physical Dimensions: Diameter 0.492" (12.50mm) and compatible height for board layout
• Polarization: Polar configuration maintained

The Rubycon 6.3ZLQ10000MEFC12.5X35 meets all substitution criteria with identical capacitance, compatible voltage rating, matching lead spacing, and identical can diameter. Physical height differs (37.00mm vs. 27.00mm), requiring verification of available board space.

Parameter Comparison

Engineering Selection Recommendations

The Rubycon 6.3ZLQ10000MEFC12.5X35 is a direct functional substitute for the obsolete Nichicon UJB0L103THD. The substitute part maintains identical capacitance and lead spacing while providing superior performance characteristics: higher voltage rating (6.3 V vs. 5.5 V), extended operating temperature range (-40°C to 105°C vs. -25°C to 85°C), and significantly longer lifetime (6000 hours at 105°C vs. 1000 hours at 85°C). The substitute is ROHS3 compliant, supporting modern regulatory requirements.

The primary design consideration is the increased height of 37.00mm compared to the original 27.00mm. PCB layout verification is required to confirm adequate clearance in the component mounting area. The lower impedance (10 mOhms vs. 300 mOhms) of the substitute provides improved ripple current handling and reduced voltage drop characteristics.

Frequently Asked Questions (FAQ)

Q: Can the Rubycon 6.3ZLQ10000MEFC12.5X35 directly replace the Nichicon UJB0L103THD?

A: Yes, for electrical function. Both parts share identical capacitance (10000 µF), matching lead spacing (5.00mm), and identical can diameter (12.50mm). The substitute's higher voltage rating (6.3 V) is compatible with circuits designed for 5.5 V operation. Physical height difference (37.00mm vs. 27.00mm) requires PCB layout verification.

Q: What are the key differences between these parts?

A: The substitute offers superior specifications: higher voltage rating, extended temperature range, longer operational lifetime, lower impedance, and ROHS3 compliance. The trade-off is increased component height, which may affect board layout in space-constrained designs.

Q: Are the lead spacings identical?

A: Yes. Both parts feature 0.197" (5.00mm) lead spacing, ensuring compatibility with existing PCB footprints designed for the original part.

Q: Does the impedance difference affect circuit performance?

A: The substitute's lower impedance (10 mOhms vs. 300 mOhms) reduces voltage drop and improves ripple current handling. This is a performance improvement for most general-purpose applications.

Q: Is the substitute RoHS compliant?

A: Yes. The Rubycon 6.3ZLQ10000MEFC12.5X35 is ROHS3 compliant, meeting current regulatory requirements for electronic component manufacturing and distribution.