UJB0L183THD Equivalent & Substitute Parts

Part Overview

The UJB0L183THD is an 18000 µF, 5.5 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 1000 hours at 85°C and is designed for general-purpose applications requiring high capacitance in a compact through-hole form factor. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

UJB0L183THD

NichiconIn Stock: 1130UJB0L183THD Datasheet

Current PartRFQ

EKYB6R3ELL183ML40S

Chemi-ConIn Stock: 804EKYB6R3ELL183ML40S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UJB0L183THD is determined by the following critical parameters:

• Capacitance Value: 18000 µF (exact match required)
• Voltage Rating: Minimum 5.5 V (higher ratings acceptable for backward compatibility)
• Package Configuration: Radial, can format with through-hole mounting
• Lead Spacing: 0.295" (7.50 mm) for PCB compatibility
• Case Diameter: 0.630" (16.00 mm) for mechanical fit
• Polarization: Polar configuration

The EKYB6R3ELL183ML40S from Chemi-Con meets all substitution criteria. It maintains identical capacitance (18000 µF), exceeds the voltage requirement (6.3 V vs. 5.5 V), preserves the radial can package with matching lead spacing and case diameter, and operates across a wider temperature range (-40°C to 105°C). The substitute part is active in production status with ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The EKYB6R3ELL183ML40S is a direct functional substitute for the UJB0L183THD. Selection is supported by the following factors:

• Electrical Compatibility: Identical 18000 µF capacitance with higher voltage rating (6.3 V) ensures safe operation in circuits designed for 5.5 V
• Mechanical Fit: Matching lead spacing (7.50 mm) and case diameter (16.00 mm) enable direct PCB mounting without layout modifications
• Production Status: Active manufacturing status ensures long-term availability and supply chain continuity
• Regulatory Compliance: ROHS3 compliance meets current environmental and safety standards
• Temperature Performance: Extended operating range (-40°C to 105°C) provides enhanced thermal margin compared to the original part

The increased height (1.634" vs. 1.063") requires verification of available vertical clearance in the application enclosure.

Frequently Asked Questions (FAQ)

Q: Can the EKYB6R3ELL183ML40S be used as a direct replacement for the UJB0L183THD?

A: Yes. Both parts share identical capacitance (18000 µF), matching lead spacing (7.50 mm), and case diameter (16.00 mm). The substitute has a higher voltage rating (6.3 V vs. 5.5 V), which is acceptable for backward compatibility. The primary consideration is the increased height (1.634" vs. 1.063"), which must be verified against available PCB clearance.

Q: What are the key differences between these two capacitors?

A: The primary differences are product status (obsolete vs. active), voltage rating (5.5 V vs. 6.3 V), tolerance specification (-10%, +50% vs. ±20%), operating temperature range (-25°C to 85°C vs. -40°C to 105°C), and physical height (27.00 mm vs. 41.50 mm). Capacitance, lead spacing, and case diameter remain identical.

Q: Is the height difference a concern for PCB assembly?

A: The substitute part is 0.571" (14.50 mm) taller than the original. This must be evaluated against the specific application's vertical clearance requirements. If space constraints exist, alternative solutions may be necessary.

Q: Are there any compliance or certification differences?

A: The substitute part (EKYB6R3ELL183ML40S) carries ROHS3 compliance certification. Both parts are REACH Unaffected and classified as EAR99 for export control purposes.

Q: What is the tolerance difference and does it affect circuit performance?

A: The original part specifies -10%, +50% tolerance, while the substitute specifies ±20%. The substitute's tighter tolerance provides more predictable capacitance values within a narrower range, which may improve circuit performance consistency.